# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
# <pep8 compliant>
import bpy
import subprocess
import os
import sys
import time
import math
from math import atan, pi, degrees, sqrt
import platform as pltfrm
if pltfrm.architecture()[0] == "64bit":
bitness = 64
else:
bitness = 32
##############################SF###########################
##############find image texture
def splitExt(path):
dotidx = path.rfind(".")
if dotidx == -1:
return path, ""
else:
return path[dotidx:].upper().replace(".", "")
def imageFormat(imgF):
ext = ""
ext_orig = splitExt(imgF)
if ext_orig == 'JPG' or ext_orig == 'JPEG':
ext = "jpeg"
elif ext_orig == 'GIF':
ext = "gif"
elif ext_orig == 'TGA':
ext = "tga"
elif ext_orig == 'IFF':
ext = "iff"
elif ext_orig == 'PPM':
ext = "ppm"
elif ext_orig == 'PNG':
ext = "png"
elif ext_orig == 'SYS':
ext = "sys"
elif ext_orig in ('TIFF', 'TIF'):
ext = "tiff"
elif ext_orig == 'EXR':
ext = "exr" # POV3.7 Only!
elif ext_orig == 'HDR':
ext = "hdr" # POV3.7 Only! --MR
print(imgF)
if not ext:
print(" WARNING: texture image format not supported ") # % (imgF , "")) #(ext_orig)))
return ext
def imgMap(ts):
image_map = ""
if ts.mapping == 'FLAT':
image_map = "map_type 0 "
elif ts.mapping == 'SPHERE':
image_map = "map_type 1 " # map_type 7 in megapov
elif ts.mapping == 'TUBE':
image_map = "map_type 2 "
#elif ts.mapping=="?":
# image_map = " map_type 3 " # map_type 3 and 4 in development (?) for POV-Ray, currently they just seem to default back to Flat (type 0)
#elif ts.mapping=="?":
# image_map = " map_type 4 " # map_type 3 and 4 in development (?) for POV-Ray, currently they just seem to default back to Flat (type 0)
if ts.texture.use_interpolation:
image_map += " interpolate 2 "
if ts.texture.extension == 'CLIP':
image_map += " once "
#image_map += "}"
#if ts.mapping=='CUBE':
# image_map+= "warp { cubic } rotate <-90,0,180>" # no direct cube type mapping. Though this should work in POV 3.7 it doesn't give that good results(best suited to environment maps?)
#if image_map == "":
# print(" No texture image found ")
return image_map
def imgMapBG(wts):
image_mapBG = ""
if wts.texture_coords == 'VIEW':
image_mapBG = " map_type 0 " # texture_coords refers to the mapping of world textures
elif wts.texture_coords == 'ANGMAP':
image_mapBG = " map_type 1 "
elif wts.texture_coords == 'TUBE':
image_mapBG = " map_type 2 "
if wts.texture.use_interpolation:
image_mapBG += " interpolate 2 "
if wts.texture.extension == 'CLIP':
image_mapBG += " once "
#image_mapBG += "}"
#if wts.mapping == 'CUBE':
# image_mapBG += "warp { cubic } rotate <-90,0,180>" # no direct cube type mapping. Though this should work in POV 3.7 it doesn't give that good results(best suited to environment maps?)
#if image_mapBG == "":
# print(" No background texture image found ")
return image_mapBG
def splitFile(path):
idx = path.rfind("/")
if idx == -1:
idx = path.rfind("\\")
return path[idx:].replace("/", "").replace("\\", "")
def splitPath(path):
idx = path.rfind("/")
if idx == -1:
return path, ""
else:
return path[:idx]
def findInSubDir(filename, subdirectory=""):
pahFile = ""
if subdirectory:
path = subdirectory
else:
path = os.getcwd()
try:
for root, dirs, names in os.walk(path):
if filename in names:
pahFile = os.path.join(root, filename)
return pahFile
except OSError:
return ""
def path_image(image):
import os
fn = bpy.path.abspath(image)
fn_strip = os.path.basename(fn)
if not os.path.isfile(fn):
fn = findInSubDir(splitFile(fn), splitPath(bpy.data.filepath))
return fn
##############end find image texture
def splitHyphen(name):
hyphidx = name.find("-")
if hyphidx == -1:
return name
else:
return name[hyphidx:].replace("-", "")
def safety(name, Level):
# safety string name material
#
# Level=1 is for texture with No specular nor Mirror reflection
# Level=2 is for texture with translation of spec and mir levels for when no map influences them
# Level=3 is for texture with Maximum Spec and Mirror
try:
if int(name) > 0:
prefix = "shader"
except:
prefix = ""
prefix = "shader_"
name = splitHyphen(name)
if Level == 2:
return prefix + name
elif Level == 1:
return prefix + name + "0" # used for 0 of specular map
elif Level == 3:
return prefix + name + "1" # used for 1 of specular map
##############end safety string name material
##############################EndSF###########################
TabLevel = 0
def write_pov(filename, scene=None, info_callback=None):
import mathutils
#file = filename
file = open(filename.name, "w")
# Only for testing
if not scene:
scene = bpy.data.scenes[0]
render = scene.render
world = scene.world
global_matrix = mathutils.Matrix.Rotation(-pi / 2.0, 4, 'X')
def setTab(tabtype, spaces):
TabStr = ""
if tabtype == '0':
TabStr = ""
elif tabtype == '1':
TabStr = "\t"
elif tabtype == '2':
TabStr = spaces * " "
return TabStr
Tab = setTab(scene.pov_indentation_character, scene.pov_indentation_spaces)
def tabWrite(str_o):
global TabLevel
brackets = str_o.count("{") - str_o.count("}") + str_o.count("[") - str_o.count("]")
if brackets < 0:
TabLevel = TabLevel + brackets
if TabLevel < 0:
print("Indentation Warning: TabLevel = %s" % TabLevel)
TabLevel = 0
if TabLevel >= 1:
file.write("%s" % Tab * TabLevel)
file.write(str_o)
if brackets > 0:
TabLevel = TabLevel + brackets
def uniqueName(name, nameSeq):
if name not in nameSeq:
return name
name_orig = name
i = 1
while name in nameSeq:
name = "%s_%.3d" % (name_orig, i)
i += 1
name = splitHyphen(name)
return name
def writeMatrix(matrix):
tabWrite("matrix <%.6f, %.6f, %.6f, %.6f, %.6f, %.6f, %.6f, %.6f, %.6f, %.6f, %.6f, %.6f>\n" %\
(matrix[0][0], matrix[0][1], matrix[0][2], matrix[1][0], matrix[1][1], matrix[1][2], matrix[2][0], matrix[2][1], matrix[2][2], matrix[3][0], matrix[3][1], matrix[3][2]))
def writeObjectMaterial(material):
# DH - modified some variables to be function local, avoiding RNA write
# this should be checked to see if it is functionally correct
if material: # and material.transparency_method == 'RAYTRACE': # Commented out: always write IOR to be able to use it for SSS, Fresnel reflections...
# But there can be only one!
if material.subsurface_scattering.use: # SSS IOR get highest priority
tabWrite("interior {\n")
tabWrite("ior %.6f\n" % material.subsurface_scattering.ior)
elif material.pov_mirror_use_IOR: # Then the raytrace IOR taken from raytrace transparency properties and used for reflections if IOR Mirror option is checked
tabWrite("interior {\n")
tabWrite("ior %.6f\n" % material.raytrace_transparency.ior)
else:
tabWrite("interior {\n")
tabWrite("ior %.6f\n" % material.raytrace_transparency.ior)
pov_fake_caustics = False
pov_photons_refraction = False
pov_photons_reflection = False
if material.pov_refraction_type == "0":
pov_fake_caustics = False
pov_photons_refraction = False
pov_photons_reflection = True # should respond only to proper checkerbox
elif material.pov_refraction_type == "1":
pov_fake_caustics = True
pov_photons_refraction = False
elif material.pov_refraction_type == "2":
pov_fake_caustics = False
pov_photons_refraction = True
#If only Raytrace transparency is set, its IOR will be used for refraction, but user can set up 'un-physical' fresnel reflections in raytrace mirror parameters.
#Last, if none of the above is specified, user can set up 'un-physical' fresnel reflections in raytrace mirror parameters. And pov IOR defaults to 1.
if material.pov_caustics_enable:
if pov_fake_caustics:
tabWrite("caustics %.3g\n" % material.pov_fake_caustics_power)
if pov_photons_refraction:
tabWrite("dispersion %.3g\n" % material.pov_photons_dispersion) # Default of 1 means no dispersion
#TODO
# Other interior args
# if material.use_transparency and material.transparency_method == 'RAYTRACE':
# fade_distance 2
# fade_power [Value]
# fade_color
# (variable) dispersion_samples (constant count for now)
tabWrite("}\n")
if pov_photons_refraction or pov_photons_reflection:
tabWrite("photons{\n")
tabWrite("target\n")
if pov_photons_refraction:
tabWrite("refraction on\n")
if pov_photons_reflection:
tabWrite("reflection on\n")
tabWrite("}\n")
materialNames = {}
DEF_MAT_NAME = "Default"
def writeMaterial(material):
# Assumes only called once on each material
if material:
name_orig = material.name
else:
name_orig = DEF_MAT_NAME
name = materialNames[name_orig] = uniqueName(bpy.path.clean_name(name_orig), materialNames)
comments = scene.pov_comments_enable
##################Several versions of the finish: Level conditions are variations for specular/Mirror texture channel map with alternative finish of 0 specular and no mirror reflection
# Level=1 Means No specular nor Mirror reflection
# Level=2 Means translation of spec and mir levels for when no map influences them
# Level=3 Means Maximum Spec and Mirror
def povHasnoSpecularMaps(Level):
if Level == 1:
tabWrite("#declare %s = finish {" % safety(name, Level=1))
if comments:
file.write(" //No specular nor Mirror reflection\n")
else:
tabWrite("\n")
elif Level == 2:
tabWrite("#declare %s = finish {" % safety(name, Level=2))
if comments:
file.write(" //translation of spec and mir levels for when no map influences them\n")
else:
tabWrite("\n")
elif Level == 3:
tabWrite("#declare %s = finish {" % safety(name, Level=3))
if comments:
file.write(" //Maximum Spec and Mirror\n")
else:
tabWrite("\n")
if material:
#POV-Ray 3.7 now uses two diffuse values respectively for front and back shading (the back diffuse is like blender translucency)
frontDiffuse = material.diffuse_intensity
backDiffuse = material.translucency
if material.pov_conserve_energy:
#Total should not go above one
if (frontDiffuse + backDiffuse) <= 1.0:
pass
elif frontDiffuse == backDiffuse:
frontDiffuse = backDiffuse = 0.5 # Try to respect the user's 'intention' by comparing the two values but bringing the total back to one
elif frontDiffuse > backDiffuse: # Let the highest value stay the highest value
backDiffuse = 1 - (1 - frontDiffuse) # XXX FIXME!
else:
frontDiffuse = 1 - (1 - backDiffuse) # XXX FIXME!
# map hardness between 0.0 and 1.0
roughness = ((1.0 - ((material.specular_hardness - 1.0) / 510.0)))
## scale from 0.0 to 0.1
roughness *= 0.1
# add a small value because 0.0 is invalid
roughness += (1.0 / 511.0)
#####################################Diffuse Shader######################################
# Not used for Full spec (Level=3) of the shader
if material.diffuse_shader == 'OREN_NAYAR' and Level != 3:
tabWrite("brilliance %.3g\n" % (0.9 + material.roughness)) # blender roughness is what is generally called oren nayar Sigma, and brilliance in POV-Ray
if material.diffuse_shader == 'TOON' and Level != 3:
tabWrite("brilliance %.3g\n" % (0.01 + material.diffuse_toon_smooth * 0.25))
frontDiffuse *= 0.5 # Lower diffuse and increase specular for toon effect seems to look better in POV-Ray
if material.diffuse_shader == 'MINNAERT' and Level != 3:
#tabWrite("aoi %.3g\n" % material.darkness)
pass # let's keep things simple for now
if material.diffuse_shader == 'FRESNEL' and Level != 3:
#tabWrite("aoi %.3g\n" % material.diffuse_fresnel_factor)
pass # let's keep things simple for now
if material.diffuse_shader == 'LAMBERT' and Level != 3:
tabWrite("brilliance 1.8\n") # trying to best match lambert attenuation by that constant brilliance value
if Level == 2:
####################################Specular Shader######################################
if material.specular_shader == 'COOKTORR' or material.specular_shader == 'PHONG': # No difference between phong and cook torrence in blender HaHa!
tabWrite("phong %.3g\n" % (material.specular_intensity))
tabWrite("phong_size %.3g\n" % (material.specular_hardness / 2 + 0.25))
elif material.specular_shader == 'BLINN': # POV-Ray 'specular' keyword corresponds to a Blinn model, without the ior.
tabWrite("specular %.3g\n" % (material.specular_intensity * (material.specular_ior / 4.0))) # Use blender Blinn's IOR just as some factor for spec intensity
tabWrite("roughness %.3g\n" % roughness)
#Could use brilliance 2(or varying around 2 depending on ior or factor) too.
elif material.specular_shader == 'TOON':
tabWrite("phong %.3g\n" % (material.specular_intensity * 2))
tabWrite("phong_size %.3g\n" % (0.1 + material.specular_toon_smooth / 2)) # use extreme phong_size
elif material.specular_shader == 'WARDISO':
tabWrite("specular %.3g\n" % (material.specular_intensity / (material.specular_slope + 0.0005))) # find best suited default constant for brilliance Use both phong and specular for some values.
tabWrite("roughness %.4g\n" % (0.0005 + material.specular_slope / 10.0)) # find best suited default constant for brilliance Use both phong and specular for some values.
tabWrite("brilliance %.4g\n" % (1.8 - material.specular_slope * 1.8)) # find best suited default constant for brilliance Use both phong and specular for some values.
#########################################################################################
elif Level == 1:
tabWrite("specular 0\n")
elif Level == 3:
tabWrite("specular 1\n")
tabWrite("diffuse %.3g %.3g\n" % (frontDiffuse, backDiffuse))
tabWrite("ambient %.3g\n" % material.ambient)
#tabWrite("ambient rgb <%.3g, %.3g, %.3g>\n" % tuple([c*material.ambient for c in world.ambient_color])) # POV-Ray blends the global value
tabWrite("emission %.3g\n" % material.emit) # New in POV-Ray 3.7
#tabWrite("roughness %.3g\n" % roughness) #POV-Ray just ignores roughness if there's no specular keyword
if material.pov_conserve_energy:
tabWrite("conserve_energy\n") # added for more realistic shading. Needs some checking to see if it really works. --Maurice.
# 'phong 70.0 '
if Level != 1:
if material.raytrace_mirror.use:
raytrace_mirror = material.raytrace_mirror
if raytrace_mirror.reflect_factor:
tabWrite("reflection {\n")
tabWrite("rgb <%.3g, %.3g, %.3g>" % material.mirror_color[:])
if material.pov_mirror_metallic:
tabWrite("metallic %.3g" % (raytrace_mirror.reflect_factor))
if material.pov_mirror_use_IOR: # WORKING ?
tabWrite("fresnel 1 ") # Removed from the line below: gives a more physically correct material but needs proper IOR. --Maurice
tabWrite("falloff %.3g exponent %.3g} " % (raytrace_mirror.fresnel, raytrace_mirror.fresnel_factor))
if material.subsurface_scattering.use:
subsurface_scattering = material.subsurface_scattering
tabWrite("subsurface { <%.3g, %.3g, %.3g>, <%.3g, %.3g, %.3g> }\n" % (
sqrt(subsurface_scattering.radius[0]) * 1.5,
sqrt(subsurface_scattering.radius[1]) * 1.5,
sqrt(subsurface_scattering.radius[2]) * 1.5,
1.0 - subsurface_scattering.color[0],
1.0 - subsurface_scattering.color[1],
1.0 - subsurface_scattering.color[2],
)
)
if material.pov_irid_enable:
tabWrite("irid { %.4g thickness %.4g turbulence %.4g }" % (material.pov_irid_amount, material.pov_irid_thickness, material.pov_irid_turbulence))
else:
tabWrite("diffuse 0.8\n")
tabWrite("phong 70.0\n")
#tabWrite("specular 0.2\n")
# This is written into the object
'''
if material and material.transparency_method=='RAYTRACE':
'interior { ior %.3g} ' % material.raytrace_transparency.ior
'''
#tabWrite("crand 1.0\n") # Sand granyness
#tabWrite("metallic %.6f\n" % material.spec)
#tabWrite("phong %.6f\n" % material.spec)
#tabWrite("phong_size %.6f\n" % material.spec)
#tabWrite("brilliance %.6f " % (material.specular_hardness/256.0) # Like hardness
tabWrite("}\n\n")
# Level=2 Means translation of spec and mir levels for when no map influences them
povHasnoSpecularMaps(Level=2)
if material:
special_texture_found = False
for t in material.texture_slots:
if t and t.texture.type == 'IMAGE' and t.use and t.texture.image and (t.use_map_specular or t.use_map_raymir or t.use_map_normal or t.use_map_alpha):
special_texture_found = True
continue # Some texture found
if special_texture_found:
# Level=1 Means No specular nor Mirror reflection
povHasnoSpecularMaps(Level=1)
# Level=3 Means Maximum Spec and Mirror
povHasnoSpecularMaps(Level=3)
def exportCamera():
camera = scene.camera
# DH disabled for now, this isn't the correct context
active_object = None # bpy.context.active_object # does not always work MR
matrix = global_matrix * camera.matrix_world
focal_point = camera.data.dof_distance
# compute resolution
Qsize = float(render.resolution_x) / float(render.resolution_y)
tabWrite("#declare camLocation = <%.6f, %.6f, %.6f>;\n" % (matrix[3][0], matrix[3][1], matrix[3][2]))
tabWrite("#declare camLookAt = <%.6f, %.6f, %.6f>;\n" % tuple([degrees(e) for e in matrix.rotation_part().to_euler()]))
tabWrite("camera {\n")
if scene.pov_baking_enable and active_object and active_object.type == 'MESH':
tabWrite("mesh_camera{ 1 3\n") # distribution 3 is what we want here
tabWrite("mesh{%s}\n" % active_object.name)
tabWrite("}\n")
tabWrite("location <0,0,.01>")
tabWrite("direction <0,0,-1>")
# Using standard camera otherwise
else:
tabWrite("location <0, 0, 0>\n")
tabWrite("look_at <0, 0, -1>\n")
tabWrite("right <%s, 0, 0>\n" % - Qsize)
tabWrite("up <0, 1, 0>\n")
tabWrite("angle %f\n" % (360.0 * atan(16.0 / camera.data.lens) / pi))
tabWrite("rotate <%.6f, %.6f, %.6f>\n" % tuple([degrees(e) for e in matrix.rotation_part().to_euler()]))
tabWrite("translate <%.6f, %.6f, %.6f>\n" % (matrix[3][0], matrix[3][1], matrix[3][2]))
if focal_point != 0:
tabWrite("aperture 0.25\n") # fixed blur amount for now to do, add slider a button?
tabWrite("blur_samples 96 128\n")
tabWrite("variance 1/10000\n")
tabWrite("focal_point <0, 0, %f>\n" % focal_point)
tabWrite("}\n")
def exportLamps(lamps):
# Get all lamps
for ob in lamps:
lamp = ob.data
matrix = global_matrix * ob.matrix_world
color = tuple([c * lamp.energy * 2.0 for c in lamp.color]) # Colour is modified by energy #muiltiplie by 2 for a better match --Maurice
tabWrite("light_source {\n")
tabWrite("< 0,0,0 >\n")
tabWrite("color rgb<%.3g, %.3g, %.3g>\n" % color)
if lamp.type == 'POINT':
pass
elif lamp.type == 'SPOT':
tabWrite("spotlight\n")
# Falloff is the main radius from the centre line
tabWrite("falloff %.2f\n" % (degrees(lamp.spot_size) / 2.0)) # 1 TO 179 FOR BOTH
tabWrite("radius %.6f\n" % ((degrees(lamp.spot_size) / 2.0) * (1.0 - lamp.spot_blend)))
# Blender does not have a tightness equivilent, 0 is most like blender default.
tabWrite("tightness 0\n") # 0:10f
tabWrite("point_at <0, 0, -1>\n")
elif lamp.type == 'SUN':
tabWrite("parallel\n")
tabWrite("point_at <0, 0, -1>\n") # *must* be after 'parallel'
elif lamp.type == 'AREA':
tabWrite("fade_distance %.6f\n" % (lamp.distance / 5.0))
tabWrite("fade_power %d\n" % 2) # Area lights have no falloff type, so always use blenders lamp quad equivalent for those?
size_x = lamp.size
samples_x = lamp.shadow_ray_samples_x
if lamp.shape == 'SQUARE':
size_y = size_x
samples_y = samples_x
else:
size_y = lamp.size_y
samples_y = lamp.shadow_ray_samples_y
tabWrite("area_light <%d,0,0>,<0,0,%d> %d, %d\n" % (size_x, size_y, samples_x, samples_y))
if lamp.shadow_ray_sample_method == 'CONSTANT_JITTERED':
if lamp.jitter:
tabWrite("jitter\n")
else:
tabWrite("adaptive 1\n")
tabWrite("jitter\n")
if lamp.type == 'HEMI': # HEMI never has any shadow attribute
tabWrite("shadowless\n")
elif lamp.shadow_method == 'NOSHADOW':
tabWrite("shadowless\n")
if lamp.type not in ('SUN', 'AREA', 'HEMI'): # Sun shouldn't be attenuated. Hemi and area lights have no falloff attribute so they are put to type 2 attenuation a little higher above.
tabWrite("fade_distance %.6f\n" % (lamp.distance / 5.0))
if lamp.falloff_type == 'INVERSE_SQUARE':
tabWrite("fade_power %d\n" % 2) # Use blenders lamp quad equivalent
elif lamp.falloff_type == 'INVERSE_LINEAR':
tabWrite("fade_power %d\n" % 1) # Use blenders lamp linear
elif lamp.falloff_type == 'CONSTANT': # upposing using no fade power keyword would default to constant, no attenuation.
pass
elif lamp.falloff_type == 'CUSTOM_CURVE': # Using Custom curve for fade power 3 for now.
tabWrite("fade_power %d\n" % 4)
writeMatrix(matrix)
tabWrite("}\n")
##################################################################################################################################
#Wip to be Used for fresnel, but not tested yet.
##################################################################################################################################
## lampLocation=[0,0,0]
## lampRotation=[0,0,0]
## lampDistance=0.00
## averageLampLocation=[0,0,0]
## averageLampRotation=[0,0,0]
## averageLampDistance=0.00
## lamps=[]
## for l in scene.objects:
## if l.type == 'LAMP':#get all lamps
## lamps += [l]
## for ob in lamps:
## lamp = ob.data
## lampLocation[0]+=ob.location[0]
## lampLocation[1]+=ob.location[1]
## lampLocation[2]+=ob.location[2]
## lampRotation[0]+=ob.rotation_euler[0]
## lampRotation[1]+=ob.rotation_euler[1]
## lampRotation[2]+=ob.rotation_euler[2]
## lampDistance+=ob.data.distance
## averageLampRotation[0]=lampRotation[0] / len(lamps)#create an average direction for all lamps.
## averageLampRotation[1]=lampRotation[1] / len(lamps)#create an average direction for all lamps.
## averageLampRotation[2]=lampRotation[2] / len(lamps)#create an average direction for all lamps.
##
## averageLampLocation[0]=lampLocation[0] / len(lamps)#create an average position for all lamps.
## averageLampLocation[1]=lampLocation[1] / len(lamps)#create an average position for all lamps.
## averageLampLocation[2]=lampLocation[2] / len(lamps)#create an average position for all lamps.
##
## averageLampDistance=lampDistance / len(lamps)#create an average distance for all lamps.
## file.write("\n#declare lampTarget= vrotate(<%.4g,%.4g,%.4g>,<%.4g,%.4g,%.4g>);" % (-(averageLampLocation[0]-averageLampDistance), -(averageLampLocation[1]-averageLampDistance), -(averageLampLocation[2]-averageLampDistance), averageLampRotation[0], averageLampRotation[1], averageLampRotation[2]))
## #v(A,B) rotates vector A about origin by vector B.
##
####################################################################################################################################
def exportMeta(metas):
# TODO - blenders 'motherball' naming is not supported.
if scene.pov_comments_enable and len(metas) >= 1:
file.write("//--Blob objects--\n\n")
for ob in metas:
meta = ob.data
# important because no elements will break parsing.
elements = [elem for elem in meta.elements if elem.type in ('BALL', 'ELLIPSOID')]
if elements:
tabWrite("blob {\n")
tabWrite("threshold %.4g\n" % meta.threshold)
importance = ob.pov_importance_value
try:
material = meta.materials[0] # lame! - blender cant do enything else.
except:
material = None
for elem in elements:
loc = elem.co
stiffness = elem.stiffness
if elem.use_negative:
stiffness = - stiffness
if elem.type == 'BALL':
tabWrite("sphere { <%.6g, %.6g, %.6g>, %.4g, %.4g }\n" % (loc.x, loc.y, loc.z, elem.radius, stiffness))
# After this wecould do something simple like...
# "pigment {Blue} }"
# except we'll write the color
elif elem.type == 'ELLIPSOID':
# location is modified by scale
tabWrite("sphere { <%.6g, %.6g, %.6g>, %.4g, %.4g }\n" % (loc.x / elem.size_x, loc.y / elem.size_y, loc.z / elem.size_z, elem.radius, stiffness))
tabWrite("scale <%.6g, %.6g, %.6g> \n" % (elem.size_x, elem.size_y, elem.size_z))
if material:
diffuse_color = material.diffuse_color
if material.use_transparency and material.transparency_method == 'RAYTRACE':
trans = 1.0 - material.raytrace_transparency.filter
else:
trans = 0.0
material_finish = materialNames[material.name]
tabWrite("pigment {rgbft<%.3g, %.3g, %.3g, %.3g, %.3g>} \n" % (diffuse_color[0], diffuse_color[1], diffuse_color[2], 1.0 - material.alpha, trans))
tabWrite("finish {%s}\n" % safety(material_finish, Level=2))
else:
tabWrite("pigment {rgb<1 1 1>} \n")
tabWrite("finish {%s}\n" % (safety(DEF_MAT_NAME, Level=1))) # Write the finish last.
writeObjectMaterial(material)
writeMatrix(global_matrix * ob.matrix_world)
#Importance for radiosity sampling added here:
tabWrite("radiosity { \n")
tabWrite("importance %3g \n" % importance)
tabWrite("}\n")
tabWrite("}\n") # End of Metaball block
if scene.pov_comments_enable and len(metas) >= 1:
file.write("\n")
objectNames = {}
DEF_OBJ_NAME = "Default"
def exportMeshs(scene, sel):
ob_num = 0
for ob in sel:
ob_num += 1
#############################################
#Generating a name for object just like materials to be able to use it (baking for now or anything else).
if sel:
name_orig = ob.name
else:
name_orig = DEF_OBJ_NAME
name = objectNames[name_orig] = uniqueName(bpy.path.clean_name(name_orig), objectNames)
#############################################
if ob.type in ('LAMP', 'CAMERA', 'EMPTY', 'META', 'ARMATURE', 'LATTICE'):
continue
try:
me = ob.create_mesh(scene, True, 'RENDER')
except:
# happens when curves cant be made into meshes because of no-data
continue
importance = ob.pov_importance_value
me_materials = me.materials
me_faces = me.faces[:]
if not me or not me_faces:
continue
if info_callback:
info_callback("Object %2.d of %2.d (%s)" % (ob_num, len(sel), ob.name))
#if ob.type != 'MESH':
# continue
# me = ob.data
matrix = global_matrix * ob.matrix_world
try:
uv_layer = me.uv_textures.active.data
except AttributeError:
uv_layer = None
try:
vcol_layer = me.vertex_colors.active.data
except AttributeError:
vcol_layer = None
faces_verts = [f.vertices[:] for f in me_faces]
faces_normals = [f.normal[:] for f in me_faces]
verts_normals = [v.normal[:] for v in me.vertices]
# quads incur an extra face
quadCount = sum(1 for f in faces_verts if len(f) == 4)
# Use named declaration to allow reference e.g. for baking. MR
file.write("\n")
tabWrite("#declare %s =\n" % name)
tabWrite("mesh2 {\n")
tabWrite("vertex_vectors {\n")
tabWrite("%d" % len(me.vertices)) # vert count
for v in me.vertices:
file.write(",\n")
tabWrite("<%.6f, %.6f, %.6f>" % v.co[:]) # vert count
file.write("\n")
tabWrite("}\n")
# Build unique Normal list
uniqueNormals = {}
for fi, f in enumerate(me_faces):
fv = faces_verts[fi]
# [-1] is a dummy index, use a list so we can modify in place
if f.use_smooth: # Use vertex normals
for v in fv:
key = verts_normals[v]
uniqueNormals[key] = [-1]
else: # Use face normal
key = faces_normals[fi]
uniqueNormals[key] = [-1]
tabWrite("normal_vectors {\n")
tabWrite("%d" % len(uniqueNormals)) # vert count
idx = 0
for no, index in uniqueNormals.items():
file.write(",\n")
tabWrite("<%.6f, %.6f, %.6f>" % no) # vert count
index[0] = idx
idx += 1
file.write("\n")
tabWrite("}\n")
# Vertex colours
vertCols = {} # Use for material colours also.
if uv_layer:
# Generate unique UV's
uniqueUVs = {}
for fi, uv in enumerate(uv_layer):
if len(faces_verts[fi]) == 4:
uvs = uv.uv1, uv.uv2, uv.uv3, uv.uv4
else:
uvs = uv.uv1, uv.uv2, uv.uv3
for uv in uvs:
uniqueUVs[uv[:]] = [-1]
tabWrite("uv_vectors {\n")
#print unique_uvs
tabWrite("%d" % len(uniqueUVs)) # vert count
idx = 0
for uv, index in uniqueUVs.items():
file.write(",\n")
tabWrite("<%.6f, %.6f>" % uv)
index[0] = idx
idx += 1
'''
else:
# Just add 1 dummy vector, no real UV's
tabWrite('1') # vert count
file.write(',\n\t\t<0.0, 0.0>')
'''
file.write("\n")
tabWrite("}\n")
if me.vertex_colors:
for fi, f in enumerate(me_faces):
material_index = f.material_index
material = me_materials[material_index]
if material and material.use_vertex_color_paint:
col = vcol_layer[fi]
if len(faces_verts[fi]) == 4:
cols = col.color1, col.color2, col.color3, col.color4
else:
cols = col.color1, col.color2, col.color3
for col in cols:
key = col[0], col[1], col[2], material_index # Material index!
vertCols[key] = [-1]
else:
if material:
diffuse_color = material.diffuse_color[:]
key = diffuse_color[0], diffuse_color[1], diffuse_color[2], material_index
vertCols[key] = [-1]
else:
# No vertex colours, so write material colours as vertex colours
for i, material in enumerate(me_materials):
if material:
diffuse_color = material.diffuse_color[:]
key = diffuse_color[0], diffuse_color[1], diffuse_color[2], i # i == f.mat
vertCols[key] = [-1]
# Vert Colours
tabWrite("texture_list {\n")
tabWrite("%s" % (len(vertCols))) # vert count
idx = 0
for col, index in vertCols.items():
if me_materials:
material = me_materials[col[3]]
material_finish = materialNames[material.name]
if material.use_transparency:
trans = 1.0 - material.alpha
else:
trans = 0.0
else:
material_finish = DEF_MAT_NAME # not working properly,
trans = 0.0
##############SF
texturesDif = ""
texturesSpec = ""
texturesNorm = ""
texturesAlpha = ""
for t in material.texture_slots:
if t and t.texture.type == 'IMAGE' and t.use and t.texture.image:
image_filename = path_image(t.texture.image.filepath)
imgGamma = ""
if image_filename:
if t.use_map_color_diffuse:
texturesDif = image_filename
colvalue = t.default_value
t_dif = t
if t_dif.texture.pov_tex_gamma_enable:
imgGamma = (" gamma %.3g " % t_dif.texture.pov_tex_gamma_value)
if t.use_map_specular or t.use_map_raymir:
texturesSpec = image_filename
colvalue = t.default_value
t_spec = t
if t.use_map_normal:
texturesNorm = image_filename
colvalue = t.normal_factor * 10.0
#textNormName=t.texture.image.name + ".normal"
#was the above used? --MR
t_nor = t
if t.use_map_alpha:
texturesAlpha = image_filename
colvalue = t.alpha_factor * 10.0
#textDispName=t.texture.image.name + ".displ"
#was the above used? --MR
t_alpha = t
##############################################################################################################
tabWrite("\n")
tabWrite("texture {\n") # THIS AREA NEEDS TO LEAVE THE TEXTURE OPEN UNTIL ALL MAPS ARE WRITTEN DOWN. --MR
##############################################################################################################
if material.diffuse_shader == 'MINNAERT':
tabWrite("\n")
tabWrite("aoi\n")
tabWrite("texture_map {\n")
tabWrite("[%.3g finish {diffuse %.3g}]\n" % (material.darkness / 2.0, 2.0 - material.darkness))
tabWrite("[%.3g" % (1.0 - (material.darkness / 2.0)))
######TO OPTIMIZE? or present a more elegant way? At least make it work!##################################################################
#If Fresnel gets removed from 2.5, why bother?
if material.diffuse_shader == 'FRESNEL':
######END of part TO OPTIMIZE? or present a more elegant way?##################################################################
## #lampLocation=lamp.position
## lampRotation=
## a=lamp.Rotation[0]
## b=lamp.Rotation[1]
## c=lamp.Rotation[2]
## lampLookAt=tuple (x,y,z)
## lampLookAt[3]= 0.0 #Put 'target' of the lamp on the floor plane to elimianate one unknown value
## degrees(atan((lampLocation - lampLookAt).y/(lampLocation - lampLookAt).z))=lamp.rotation[0]
## degrees(atan((lampLocation - lampLookAt).z/(lampLocation - lampLookAt).x))=lamp.rotation[1]
## degrees(atan((lampLocation - lampLookAt).x/(lampLocation - lampLookAt).y))=lamp.rotation[2]
## degrees(atan((lampLocation - lampLookAt).y/(lampLocation.z))=lamp.rotation[0]
## degrees(atan((lampLocation.z/(lampLocation - lampLookAt).x))=lamp.rotation[1]
## degrees(atan((lampLocation - lampLookAt).x/(lampLocation - lampLookAt).y))=lamp.rotation[2]
#color = tuple([c * lamp.energy for c in lamp.color]) # Colour is modified by energy
tabWrite("\n")
tabWrite("slope { lampTarget }\n")
tabWrite("texture_map {\n")
tabWrite("[%.3g finish {diffuse %.3g}]\n" % (material.diffuse_fresnel / 2, 2.0 - material.diffuse_fresnel_factor))
tabWrite("[%.3g\n" % (1 - (material.diffuse_fresnel / 2.0)))
#if material.diffuse_shader == 'FRESNEL': pigment pattern aoi pigment and texture map above, the rest below as one of its entry
##########################################################################################################################
#special_texture_found = False
#for t in material.texture_slots:
# if t and t.texture.type == 'IMAGE' and t.use and t.texture.image and (t.use_map_specular or t.use_map_raymir or t.use_map_normal or t.use_map_alpha):
# special_texture_found = True
# continue # Some texture found
#if special_texture_found:
if texturesSpec != "" or texturesAlpha != "" or texturesNorm != "":
if texturesSpec != "":
# tabWrite("\n")
tabWrite("pigment_pattern {\n")
# POV-Ray "scale" is not a number of repetitions factor, but its inverse, a standard scale factor.
# Offset seems needed relatively to scale so probably center of the scale is not the same in blender and POV
mappingSpec = "translate <%.4g,%.4g,%.4g> scale <%.4g,%.4g,%.4g>\n" % (-t_spec.offset.x, t_spec.offset.y, t_spec.offset.z, 1.0 / t_spec.scale.x, 1.0 / t_spec.scale.y, 1.0 / t_spec.scale.z)
tabWrite("uv_mapping image_map{%s \"%s\" %s}\n" % (imageFormat(texturesSpec), texturesSpec, imgMap(t_spec)))
tabWrite("%s\n" % mappingSpec)
tabWrite("}\n")
tabWrite("texture_map {\n")
tabWrite("[0 \n")
if texturesDif == "":
if texturesAlpha != "":
tabWrite("\n")
# POV-Ray "scale" is not a number of repetitions factor, but its inverse, a standard scale factor.
# Offset seems needed relatively to scale so probably center of the scale is not the same in blender and POV
mappingAlpha = " translate <%.4g,%.4g,%.4g> scale <%.4g,%.4g,%.4g>\n" % (-t_alpha.offset.x, t_alpha.offset.y, t_alpha.offset.z, 1.0 / t_alpha.scale.x, 1.0 / t_alpha.scale.y, 1.0 / t_alpha.scale.z)
tabWrite("pigment {pigment_pattern {uv_mapping image_map{%s \"%s\" %s}%s" % (imageFormat(texturesAlpha), texturesAlpha, imgMap(t_alpha), mappingAlpha))
tabWrite("}\n")
tabWrite("pigment_map {\n")
tabWrite("[0 color rgbft<0,0,0,1,1>]\n")
tabWrite("[1 color rgbft<%.3g, %.3g, %.3g, %.3g, %.3g>]\n" % (col[0], col[1], col[2], 1.0 - material.alpha, trans))
tabWrite("}\n")
tabWrite("}\n")
else:
tabWrite("pigment {rgbft<%.3g, %.3g, %.3g, %.3g, %.3g>}\n" % (col[0], col[1], col[2], 1.0 - material.alpha, trans))
if texturesSpec != "":
tabWrite("finish {%s}\n" % (safety(material_finish, Level=1))) # Level 1 is no specular
else:
tabWrite("finish {%s}\n" % (safety(material_finish, Level=2))) # Level 2 is translated spec
else:
# POV-Ray "scale" is not a number of repetitions factor, but its inverse, a standard scale factor.
# Offset seems needed relatively to scale so probably center of the scale is not the same in blender and POV
mappingDif = ("translate <%.4g,%.4g,%.4g> scale <%.4g,%.4g,%.4g>" % (-t_dif.offset.x, t_dif.offset.y, t_dif.offset.z, 1.0 / t_dif.scale.x, 1.0 / t_dif.scale.y, 1.0 / t_dif.scale.z))
if texturesAlpha != "":
# POV-Ray "scale" is not a number of repetitions factor, but its inverse, a standard scale factor.
# Offset seems needed relatively to scale so probably center of the scale is not the same in blender and POV
mappingAlpha = " translate <%.4g,%.4g,%.4g> scale <%.4g,%.4g,%.4g>" % (t_alpha.offset.x, t_alpha.offset.y, t_alpha.offset.z, 1.0 / t_alpha.scale.x, 1.0 / t_alpha.scale.y, 1.0 / t_alpha.scale.z)
tabWrite("pigment {\n")
tabWrite("pigment_pattern {\n")
tabWrite("uv_mapping image_map{%s \"%s\" %s}%s}\n" % (imageFormat(texturesAlpha), texturesAlpha, imgMap(t_alpha), mappingAlpha))
tabWrite("pigment_map {\n")
tabWrite("[0 color rgbft<0,0,0,1,1>]\n")
tabWrite("[1 uv_mapping image_map {%s \"%s\" %s} %s]\n" % (imageFormat(texturesDif), texturesDif, (imgGamma + imgMap(t_dif)), mappingDif))
tabWrite("}\n")
tabWrite("}\n")
else:
tabWrite("pigment {uv_mapping image_map {%s \"%s\" %s}%s}\n" % (imageFormat(texturesDif), texturesDif, (imgGamma + imgMap(t_dif)), mappingDif))
if texturesSpec != "":
tabWrite("finish {%s}\n" % (safety(material_finish, Level=1))) # Level 1 is no specular
else:
tabWrite("finish {%s}\n" % (safety(material_finish, Level=2))) # Level 2 is translated specular
## scale 1 rotate y*0
#imageMap = ("{image_map {%s \"%s\" %s }\n" % (imageFormat(textures),textures,imgMap(t_dif)))
#tabWrite("uv_mapping pigment %s} %s finish {%s}\n" % (imageMap,mapping,safety(material_finish)))
#tabWrite("pigment {uv_mapping image_map {%s \"%s\" %s}%s} finish {%s}\n" % (imageFormat(texturesDif),texturesDif,imgMap(t_dif),mappingDif,safety(material_finish)))
if texturesNorm != "":
## scale 1 rotate y*0
# POV-Ray "scale" is not a number of repetitions factor, but its inverse, a standard scale factor.
# Offset seems needed relatively to scale so probably center of the scale is not the same in blender and POV
mappingNor = " translate <%.4g,%.4g,%.4g> scale <%.4g,%.4g,%.4g>" % (-t_nor.offset.x, t_nor.offset.y, t_nor.offset.z, 1.0 / t_nor.scale.x, 1.0 / t_nor.scale.y, 1.0 / t_nor.scale.z)
#imageMapNor = ("{bump_map {%s \"%s\" %s mapping}" % (imageFormat(texturesNorm),texturesNorm,imgMap(t_nor)))
#We were not using the above maybe we should?
tabWrite("normal {uv_mapping bump_map {%s \"%s\" %s bump_size %.4g }%s}\n" % (imageFormat(texturesNorm), texturesNorm, imgMap(t_nor), t_nor.normal_factor * 10, mappingNor))
if texturesSpec != "":
tabWrite("]\n")
################################Second index for mapping specular max value##################################################################################################
tabWrite("[1 \n")
if texturesDif == "":
if texturesAlpha != "":
# POV-Ray "scale" is not a number of repetitions factor, but its inverse, a standard scale factor.
# Offset seems needed relatively to scale so probably center of the scale is not the same in blender and POV
mappingAlpha = " translate <%.4g,%.4g,%.4g> scale <%.4g,%.4g,%.4g>\n" % (-t_alpha.offset.x, t_alpha.offset.y, t_alpha.offset.z, 1.0 / t_alpha.scale.x, 1.0 / t_alpha.scale.y, 1.0 / t_alpha.scale.z) # strange that the translation factor for scale is not the same as for translate. ToDo: verify both matches with blender internal.
tabWrite("pigment {pigment_pattern {uv_mapping image_map{%s \"%s\" %s}%s}\n" % (imageFormat(texturesAlpha), texturesAlpha, imgMap(t_alpha), mappingAlpha))
tabWrite("pigment_map {\n")
tabWrite("[0 color rgbft<0,0,0,1,1>]\n")
tabWrite("[1 color rgbft<%.3g, %.3g, %.3g, %.3g, %.3g>]\n" % (col[0], col[1], col[2], 1.0 - material.alpha, trans))
tabWrite("}\n")
tabWrite("}\n")
else:
tabWrite("pigment {rgbft<%.3g, %.3g, %.3g, %.3g, %.3g>}\n" % (col[0], col[1], col[2], 1.0 - material.alpha, trans))
if texturesSpec != "":
tabWrite("finish {%s}\n" % (safety(material_finish, Level=3))) # Level 3 is full specular
else:
tabWrite("finish {%s}\n" % (safety(material_finish, Level=2))) # Level 2 is translated specular
else:
# POV-Ray "scale" is not a number of repetitions factor, but its inverse, a standard scale factor.
# Offset seems needed relatively to scale so probably center of the scale is not the same in blender and POV
mappingDif = ("translate <%.4g,%.4g,%.4g> scale <%.4g,%.4g,%.4g>" % (-t_dif.offset.x, t_dif.offset.y, t_dif.offset.z, 1.0 / t_dif.scale.x, 1.0 / t_dif.scale.y, 1.0 / t_dif.scale.z)) # strange that the translation factor for scale is not the same as for translate. ToDo: verify both matches with blender internal.
if texturesAlpha != "":
mappingAlpha = "translate <%.4g,%.4g,%.4g> scale <%.4g,%.4g,%.4g>" % (-t_alpha.offset.x, t_alpha.offset.y, t_alpha.offset.z, 1.0 / t_alpha.scale.x, 1.0 / t_alpha.scale.y, 1.0 / t_alpha.scale.z) # strange that the translation factor for scale is not the same as for translate. ToDo: verify both matches with blender internal.
tabWrite("pigment {pigment_pattern {uv_mapping image_map{%s \"%s\" %s}%s}\n" % (imageFormat(texturesAlpha), texturesAlpha, imgMap(t_alpha), mappingAlpha))
tabWrite("pigment_map {\n")
tabWrite("[0 color rgbft<0,0,0,1,1>]\n")
tabWrite("[1 uv_mapping image_map {%s \"%s\" %s} %s]\n" % (imageFormat(texturesDif), texturesDif, (imgMap(t_dif) + imgGamma), mappingDif))
tabWrite("}\n")
tabWrite("}\n")
else:
tabWrite("pigment {\n")
tabWrite("uv_mapping image_map {\n")
#tabWrite("%s \"%s\" %s}%s\n" % (imageFormat(texturesDif),texturesDif,(imgGamma + imgMap(t_dif)),mappingDif))
tabWrite("%s \"%s\" \n" % (imageFormat(texturesDif), texturesDif))
tabWrite("%s\n" % (imgGamma + imgMap(t_dif)))
tabWrite("}\n")
tabWrite("%s\n" % mappingDif)
tabWrite("}\n")
if texturesSpec != "":
tabWrite("finish {%s}\n" % (safety(material_finish, Level=3))) # Level 3 is full specular
else:
tabWrite("finish {%s}\n" % (safety(material_finish, Level=2))) # Level 2 is translated specular
## scale 1 rotate y*0
#imageMap = ("{image_map {%s \"%s\" %s }" % (imageFormat(textures),textures,imgMap(t_dif)))
#file.write("\n\t\t\tuv_mapping pigment %s} %s finish {%s}" % (imageMap,mapping,safety(material_finish)))
#file.write("\n\t\t\tpigment {uv_mapping image_map {%s \"%s\" %s}%s} finish {%s}" % (imageFormat(texturesDif),texturesDif,imgMap(t_dif),mappingDif,safety(material_finish)))
if texturesNorm != "":
## scale 1 rotate y*0
# POV-Ray "scale" is not a number of repetitions factor, but its inverse, a standard scale factor.
# Offset seems needed relatively to scale so probably center of the scale is not the same in blender and POV
mappingNor = (" translate <%.4g,%.4g,%.4g> scale <%.4g,%.4g,%.4g>" % (-t_nor.offset.x, t_nor.offset.y, t_nor.offset.z, 1.0 / t_nor.scale.x, 1.0 / t_nor.scale.y, 1.0 / t_nor.scale.z))
#imageMapNor = ("{bump_map {%s \"%s\" %s mapping}" % (imageFormat(texturesNorm),texturesNorm,imgMap(t_nor)))
#We were not using the above maybe we should?
tabWrite("normal {uv_mapping bump_map {%s \"%s\" %s bump_size %.4g }%s}\n" % (imageFormat(texturesNorm), texturesNorm, imgMap(t_nor), t_nor.normal_factor * 10.0, mappingNor))
if texturesSpec != "":
tabWrite("]\n")
tabWrite("}\n")
#End of slope/ior texture_map
if material.diffuse_shader in ('MINNAERT', 'FRESNEL'):
tabWrite("]\n")
tabWrite("}\n")
tabWrite("}\n") # THEN IT CAN CLOSE IT --MR
############################################################################################################
index[0] = idx
idx += 1
tabWrite("}\n")
# Face indices
tabWrite("face_indices {\n")
tabWrite("%d" % (len(me_faces) + quadCount)) # faces count
for fi, f in enumerate(me_faces):
fv = faces_verts[fi]
material_index = f.material_index
if len(fv) == 4:
indices = (0, 1, 2), (0, 2, 3)
else:
indices = ((0, 1, 2),)
if vcol_layer:
col = vcol_layer[fi]
if len(fv) == 4:
cols = col.color1, col.color2, col.color3, col.color4
else:
cols = col.color1, col.color2, col.color3
if not me_materials or me_materials[material_index] is None: # No materials
for i1, i2, i3 in indices:
file.write(",\n")
tabWrite("<%d,%d,%d>" % (fv[i1], fv[i2], fv[i3])) # vert count
else:
material = me_materials[material_index]
for i1, i2, i3 in indices:
if me.vertex_colors and material.use_vertex_color_paint:
# Colour per vertex - vertex colour
col1 = cols[i1]
col2 = cols[i2]
col3 = cols[i3]
ci1 = vertCols[col1[0], col1[1], col1[2], material_index][0]
ci2 = vertCols[col2[0], col2[1], col2[2], material_index][0]
ci3 = vertCols[col3[0], col3[1], col3[2], material_index][0]
else:
# Colour per material - flat material colour
diffuse_color = material.diffuse_color
ci1 = ci2 = ci3 = vertCols[diffuse_color[0], diffuse_color[1], diffuse_color[2], f.material_index][0]
file.write(",\n")
tabWrite("<%d,%d,%d>, %d,%d,%d" % (fv[i1], fv[i2], fv[i3], ci1, ci2, ci3)) # vert count
file.write("\n")
tabWrite("}\n")
# normal_indices indices
tabWrite("normal_indices {\n")
tabWrite("%d" % (len(me_faces) + quadCount)) # faces count
for fi, fv in enumerate(faces_verts):
if len(fv) == 4:
indices = (0, 1, 2), (0, 2, 3)
else:
indices = ((0, 1, 2),)
for i1, i2, i3 in indices:
if me_faces[fi].use_smooth:
file.write(",\n")
tabWrite("<%d,%d,%d>" %\
(uniqueNormals[verts_normals[fv[i1]]][0],\
uniqueNormals[verts_normals[fv[i2]]][0],\
uniqueNormals[verts_normals[fv[i3]]][0])) # vert count
else:
idx = uniqueNormals[faces_normals[fi]][0]
file.write(",\n")
tabWrite("<%d,%d,%d>" % (idx, idx, idx)) # vert count
file.write("\n")
tabWrite("}\n")
if uv_layer:
tabWrite("uv_indices {\n")
tabWrite("%d" % (len(me_faces) + quadCount)) # faces count
for fi, fv in enumerate(faces_verts):
if len(fv) == 4:
indices = (0, 1, 2), (0, 2, 3)
else:
indices = ((0, 1, 2),)
uv = uv_layer[fi]
if len(faces_verts[fi]) == 4:
uvs = uv.uv1[:], uv.uv2[:], uv.uv3[:], uv.uv4[:]
else:
uvs = uv.uv1[:], uv.uv2[:], uv.uv3[:]
for i1, i2, i3 in indices:
file.write(",\n")
tabWrite("<%d,%d,%d>" % (
uniqueUVs[uvs[i1]][0],\
uniqueUVs[uvs[i2]][0],\
uniqueUVs[uvs[i3]][0],
))
file.write("\n")
tabWrite("}\n")
if me.materials:
try:
material = me.materials[0] # dodgy
writeObjectMaterial(material)
except IndexError:
print(me)
writeMatrix(matrix)
#Importance for radiosity sampling added here:
tabWrite("radiosity { \n")
tabWrite("importance %3g \n" % importance)
tabWrite("}\n")
tabWrite("}\n") # End of mesh block
tabWrite("%s\n" % name) # Use named declaration to allow reference e.g. for baking. MR
bpy.data.meshes.remove(me)
def exportWorld(world):
render = scene.render
camera = scene.camera
matrix = global_matrix * camera.matrix_world
if not world:
return
#############Maurice####################################
#These lines added to get sky gradient (visible with PNG output)
if world:
#For simple flat background:
if not world.use_sky_blend:
#Non fully transparent background could premultiply alpha and avoid anti-aliasing display issue:
if render.alpha_mode == 'PREMUL' or render.alpha_mode == 'PREMUL': # XXX FIXME!
tabWrite("background {rgbt<%.3g, %.3g, %.3g, 0.75>}\n" % (world.horizon_color[:]))
#Currently using no alpha with Sky option:
elif render.alpha_mode == 'SKY':
tabWrite("background {rgbt<%.3g, %.3g, %.3g, 0>}\n" % (world.horizon_color[:]))
#StraightAlpha:
else:
tabWrite("background {rgbt<%.3g, %.3g, %.3g, 1>}\n" % (world.horizon_color[:]))
worldTexCount = 0
#For Background image textures
for t in world.texture_slots: # risk to write several sky_spheres but maybe ok.
if t and t.texture.type is not None:
worldTexCount += 1
if t and t.texture.type == 'IMAGE': # and t.use: #No enable checkbox for world textures yet (report it?)
image_filename = path_image(t.texture.image.filepath)
if t.texture.image.filepath != image_filename:
t.texture.image.filepath = image_filename
if image_filename != "" and t.use_map_blend:
texturesBlend = image_filename
#colvalue = t.default_value
t_blend = t
#commented below was an idea to make the Background image oriented as camera taken here: http://news.povray.org/povray.newusers/thread/%3Cweb.4a5cddf4e9c9822ba2f93e20@news.povray.org%3E/
#mappingBlend = (" translate <%.4g,%.4g,%.4g> rotate z*degrees(atan((camLocation - camLookAt).x/(camLocation - camLookAt).y)) rotate x*degrees(atan((camLocation - camLookAt).y/(camLocation - camLookAt).z)) rotate y*degrees(atan((camLocation - camLookAt).z/(camLocation - camLookAt).x)) scale <%.4g,%.4g,%.4g>b" % (t_blend.offset.x / 10 ,t_blend.offset.y / 10 ,t_blend.offset.z / 10, t_blend.scale.x ,t_blend.scale.y ,t_blend.scale.z))#replace 4/3 by the ratio of each image found by some custom or existing function
#using camera rotation valuesdirectly from blender seems much easier
if t_blend.texture_coords == 'ANGMAP':
mappingBlend = ""
else:
mappingBlend = " translate <%.4g-0.5,%.4g-0.5,%.4g-0.5> rotate<0,0,0> scale <%.4g,%.4g,%.4g>" % (
t_blend.offset.x / 10.0, t_blend.offset.y / 10.0, t_blend.offset.z / 10.0,
t_blend.scale.x * 0.85, t_blend.scale.y * 0.85, t_blend.scale.z * 0.85,
)
#The initial position and rotation of the pov camera is probably creating the rotation offset should look into it someday but at least background won't rotate with the camera now.
#Putting the map on a plane would not introduce the skysphere distortion and allow for better image scale matching but also some waay to chose depth and size of the plane relative to camera.
tabWrite("sky_sphere {\n")
tabWrite("pigment {\n")
tabWrite("image_map{%s \"%s\" %s}\n" % (imageFormat(texturesBlend), texturesBlend, imgMapBG(t_blend)))
tabWrite("}\n")
tabWrite("%s\n" % (mappingBlend))
tabWrite("}\n")
#tabWrite("scale 2\n")
#tabWrite("translate -1\n")
#For only Background gradient
if worldTexCount == 0:
if world.use_sky_blend:
tabWrite("sky_sphere {\n")
tabWrite("pigment {\n")
tabWrite("gradient y\n") # maybe Should follow the advice of POV doc about replacing gradient for skysphere..5.5
tabWrite("color_map {\n")
if render.alpha_mode == 'STRAIGHT':
tabWrite("[0.0 rgbt<%.3g, %.3g, %.3g, 1>]\n" % (world.horizon_color[:]))
tabWrite("[1.0 rgbt<%.3g, %.3g, %.3g, 1>]\n" % (world.zenith_color[:]))
elif render.alpha_mode == 'PREMUL':
tabWrite("[0.0 rgbt<%.3g, %.3g, %.3g, 0.99>]\n" % (world.horizon_color[:]))
tabWrite("[1.0 rgbt<%.3g, %.3g, %.3g, 0.99>]\n" % (world.zenith_color[:])) # aa premult not solved with transmit 1
else:
tabWrite("[0.0 rgbt<%.3g, %.3g, %.3g, 0>]\n" % (world.horizon_color[:]))
tabWrite("[1.0 rgbt<%.3g, %.3g, %.3g, 0>]\n" % (world.zenith_color[:]))
tabWrite("}\n")
tabWrite("}\n")
tabWrite("}\n")
#sky_sphere alpha (transmit) is not translating into image alpha the same way as 'background'
#if world.light_settings.use_indirect_light:
# scene.pov_radio_enable=1
#Maybe change the above to a funtion copyInternalRenderer settings when user pushes a button, then:
#scene.pov_radio_enable = world.light_settings.use_indirect_light
#and other such translations but maybe this would not be allowed either?
###############################################################
mist = world.mist_settings
if mist.use_mist:
tabWrite("fog {\n")
tabWrite("distance %.6f\n" % mist.depth)
tabWrite("color rgbt<%.3g, %.3g, %.3g, %.3g>\n" % (world.horizon_color[:] + (1.0 - mist.intensity,)))
#tabWrite("fog_offset %.6f\n" % mist.start)
#tabWrite("fog_alt 5\n")
#tabWrite("turbulence 0.2\n")
#tabWrite("turb_depth 0.3\n")
tabWrite("fog_type 1\n")
tabWrite("}\n")
if scene.pov_media_enable:
tabWrite("media {\n")
tabWrite("scattering { 1, rgb %.3g}\n" % scene.pov_media_color)
tabWrite("samples %.d\n" % scene.pov_media_samples)
tabWrite("}\n")
def exportGlobalSettings(scene):
tabWrite("global_settings {\n")
tabWrite("assumed_gamma 1.0\n")
tabWrite("max_trace_level %d\n" % scene.pov_max_trace_level)
if scene.pov_radio_enable:
tabWrite("radiosity {\n")
tabWrite("adc_bailout %.4g\n" % scene.pov_radio_adc_bailout)
tabWrite("always_sample %d\n" % scene.pov_radio_always_sample)
tabWrite("brightness %.4g\n" % scene.pov_radio_brightness)
tabWrite("count %d\n" % scene.pov_radio_count)
tabWrite("error_bound %.4g\n" % scene.pov_radio_error_bound)
tabWrite("gray_threshold %.4g\n" % scene.pov_radio_gray_threshold)
tabWrite("low_error_factor %.4g\n" % scene.pov_radio_low_error_factor)
tabWrite("media %d\n" % scene.pov_radio_media)
tabWrite("minimum_reuse %.4g\n" % scene.pov_radio_minimum_reuse)
tabWrite("nearest_count %d\n" % scene.pov_radio_nearest_count)
tabWrite("normal %d\n" % scene.pov_radio_normal)
tabWrite("pretrace_start %.3g\n" % scene.pov_radio_pretrace_start)
tabWrite("pretrace_end %.3g\n" % scene.pov_radio_pretrace_end)
tabWrite("recursion_limit %d\n" % scene.pov_radio_recursion_limit)
tabWrite("}\n")
once = 1
for material in bpy.data.materials:
if material.subsurface_scattering.use and once:
tabWrite("mm_per_unit %.6f\n" % (material.subsurface_scattering.scale * (-100.0) + 15.0)) # In pov, the scale has reversed influence compared to blender. these number should correct that
once = 0 # In POV-Ray, the scale factor for all subsurface shaders needs to be the same
if world:
tabWrite("ambient_light rgb<%.3g, %.3g, %.3g>\n" % world.ambient_color[:])
if material.pov_photons_refraction or material.pov_photons_reflection:
tabWrite("photons {\n")
tabWrite("spacing 0.003\n")
tabWrite("max_trace_level 5\n")
tabWrite("adc_bailout 0.1\n")
tabWrite("gather 30, 150\n")
tabWrite("}\n")
tabWrite("}\n")
sel = scene.objects
comments = scene.pov_comments_enable
if comments:
file.write("//---------------------------------------------\n//--Exported with POV-Ray exporter for Blender--\n//---------------------------------------------\n\n")
file.write("#version 3.7;\n")
if comments:
file.write("\n//--Global settings and background--\n\n")
exportGlobalSettings(scene)
if comments:
file.write("\n")
exportWorld(scene.world)
if comments:
file.write("\n//--Cameras--\n\n")
exportCamera()
if comments:
file.write("\n//--Lamps--\n\n")
exportLamps([l for l in sel if l.type == 'LAMP'])
if comments:
file.write("\n//--Material Definitions--\n\n")
# Convert all materials to strings we can access directly per vertex.
#exportMaterials()
writeMaterial(None) # default material
for material in bpy.data.materials:
if material.users > 0:
writeMaterial(material)
if comments:
file.write("\n")
exportMeta([l for l in sel if l.type == 'META'])
if comments:
file.write("//--Mesh objects--\n")
exportMeshs(scene, sel)
#What follow used to happen here:
#exportCamera()
#exportWorld(scene.world)
#exportGlobalSettings(scene)
# MR:..and the order was important for an attempt to implement pov 3.7 baking (mesh camera) comment for the record
# CR: Baking should be a special case than. If "baking", than we could change the order.
#print("pov file closed %s" % file.closed)
file.close()
#print("pov file closed %s" % file.closed)
def write_pov_ini(filename_ini, filename_pov, filename_image):
scene = bpy.data.scenes[0]
render = scene.render
x = int(render.resolution_x * render.resolution_percentage * 0.01)
y = int(render.resolution_y * render.resolution_percentage * 0.01)
file = open(filename_ini.name, "w")
file.write("Version=3.7\n")
file.write("Input_File_Name='%s'\n" % filename_pov.name)
file.write("Output_File_Name='%s'\n" % filename_image.name)
file.write("Width=%d\n" % x)
file.write("Height=%d\n" % y)
# Needed for border render.
'''
file.write("Start_Column=%d\n" % part.x)
file.write("End_Column=%d\n" % (part.x+part.w))
file.write("Start_Row=%d\n" % (part.y))
file.write("End_Row=%d\n" % (part.y+part.h))
'''
file.write("Bounding_Method=2\n") # The new automatic BSP is faster in most scenes
file.write("Display=1\n") # Activated (turn this back off when better live exchange is done between the two programs (see next comment)
file.write("Pause_When_Done=0\n")
file.write("Output_File_Type=N\n") # PNG, with POV-Ray 3.7, can show background color with alpha. In the long run using the POV-Ray interactive preview like bishop 3D could solve the preview for all formats.
#file.write("Output_File_Type=T\n") # TGA, best progressive loading
file.write("Output_Alpha=1\n")
if scene.pov_antialias_enable:
# aa_mapping = {"5": 2, "8": 3, "11": 4, "16": 5} # method 2 (recursive) with higher max subdiv forced because no mipmapping in POV-Ray needs higher sampling.
method = {"0": 1, "1": 2}
file.write("Antialias=on\n")
file.write("Sampling_Method=%s\n" % method[scene.pov_antialias_method])
file.write("Antialias_Depth=%d\n" % scene.pov_antialias_depth)
file.write("Antialias_Threshold=%.3g\n" % scene.pov_antialias_threshold)
file.write("Antialias_Gamma=%.3g\n" % scene.pov_antialias_gamma)
if scene.pov_jitter_enable:
file.write("Jitter=on\n")
file.write("Jitter_Amount=%3g\n" % scene.pov_jitter_amount)
else:
file.write("Jitter=off\n") # prevent animation flicker
else:
file.write("Antialias=off\n")
#print("ini file closed %s" % file.closed)
file.close()
#print("ini file closed %s" % file.closed)
class PovrayRender(bpy.types.RenderEngine):
bl_idname = 'POVRAY_RENDER'
bl_label = "POV-Ray 3.7"
DELAY = 0.5
def _export(self, scene):
import tempfile
# mktemp is Deprecated since version 2.3, replaced with NamedTemporaryFile() #CR
self._temp_file_in = tempfile.NamedTemporaryFile(suffix=".pov", delete=False)
self._temp_file_out = tempfile.NamedTemporaryFile(suffix=".png", delete=False) # PNG with POV 3.7, can show the background color with alpha. In the long run using the POV-Ray interactive preview like bishop 3D could solve the preview for all formats.
#self._temp_file_out = tempfile.NamedTemporaryFile(suffix=".tga", delete=False)
self._temp_file_ini = tempfile.NamedTemporaryFile(suffix=".ini", delete=False)
'''
self._temp_file_in = "/test.pov"
self._temp_file_out = "/test.png" # PNG with POV-Ray 3.7, can show the background color with alpha. In the long run using the POV-Ray interactive preview like bishop 3D could solve the preview for all formats.
#self._temp_file_out = "/test.tga"
self._temp_file_ini = "/test.ini"
'''
def info_callback(txt):
self.update_stats("", "POV-Ray 3.7: " + txt)
write_pov(self._temp_file_in, scene, info_callback)
def _render(self, scene):
try:
os.remove(self._temp_file_out.name) # so as not to load the old file
except OSError:
pass
write_pov_ini(self._temp_file_ini, self._temp_file_in, self._temp_file_out)
print ("***-STARTING-***")
pov_binary = "povray"
extra_args = []
if scene.pov_command_line_switches != "":
for newArg in scene.pov_command_line_switches.split(" "):
extra_args.append(newArg)
if sys.platform == "win32":
import winreg
regKey = winreg.OpenKey(winreg.HKEY_CURRENT_USER, "Software\\POV-Ray\\v3.7\\Windows")
#64 bits blender
if bitness == 64:
try:
pov_binary = winreg.QueryValueEx(regKey, "Home")[0] + "\\bin\\pvengine64"
except OSError:
# someone might run povray 32 bits on a 64 bits blender machine
try:
pov_binary = winreg.QueryValueEx(regKey, "Home")[0] + "\\bin\\pvengine"
except OSError:
print("POV-Ray 3.7: could not execute '%s', possibly POV-Ray isn't installed" % pov_binary)
else:
print("POV-Ray 3.7 64 bits could not execute, running 32 bits instead")
else:
print("POV-Ray 3.7 64 bits found")
#32 bits blender
else:
try:
pov_binary = winreg.QueryValueEx(regKey, "Home")[0] + "\\bin\\pvengine"
# someone might also run povray 64 bits with a 32 bits build of blender.
except OSError:
try:
pov_binary = winreg.QueryValueEx(regKey, "Home")[0] + "\\bin\\pvengine64"
except OSError:
print("POV-Ray 3.7: could not execute '%s', possibly POV-Ray isn't installed" % pov_binary)
else:
print("Running POV-Ray 3.7 64 bits build with 32 bits Blender, \nYou might want to run Blender 64 bits as well.")
else:
print("POV-Ray 3.7 32 bits found")
else:
# DH - added -d option to prevent render window popup which leads to segfault on linux
extra_args.append("-d")
# print("Extra Args: " + str(extra_args))
if 1:
# TODO, when POV-Ray isn't found this gives a cryptic error, would be nice to be able to detect if it exists
try:
self._process = subprocess.Popen([pov_binary, self._temp_file_ini.name] + extra_args) # stdout=subprocess.PIPE, stderr=subprocess.PIPE
except OSError:
# TODO, report api
print("POV-Ray 3.7: could not execute '%s', possibly POV-Ray isn't installed" % pov_binary)
import traceback
traceback.print_exc()
print ("***-DONE-***")
return False
else:
# This works too but means we have to wait until its done
os.system("%s %s" % (pov_binary, self._temp_file_ini.name))
# print ("***-DONE-***")
return True
def _cleanup(self):
for f in (self._temp_file_in, self._temp_file_ini, self._temp_file_out):
#print("Name: %s" % f.name)
#print("File closed %s" % f.closed)
f.close() # Why do I have to close them again? Without closeing the pov and ini files are not deletable. PNG is not closable!
try:
os.unlink(f.name)
#os.remove(f.name)
except OSError: # was that the proper error type?
#print("Couldn\'t remove/unlink TEMP file %s" % f.name)
pass
#print("")
self.update_stats("", "")
def render(self, scene):
self.update_stats("", "POV-Ray 3.7: Exporting data from Blender")
self._export(scene)
self.update_stats("", "POV-Ray 3.7: Parsing File")
if not self._render(scene):
self.update_stats("", "POV-Ray 3.7: Not found")
return
r = scene.render
##WIP output format
## if r.file_format == 'OPENEXR':
## fformat = 'EXR'
## render.color_mode = 'RGBA'
## else:
## fformat = 'TGA'
## r.file_format = 'TARGA'
## r.color_mode = 'RGBA'
# compute resolution
x = int(r.resolution_x * r.resolution_percentage * 0.01)
y = int(r.resolution_y * r.resolution_percentage * 0.01)
# Wait for the file to be created
while not os.path.exists(self._temp_file_out.name):
# print("***POV WAITING FOR FILE***")
if self.test_break():
try:
self._process.terminate()
print("***POV INTERRUPTED***")
except OSError:
pass
break
poll_result = self._process.poll()
if poll_result is not None:
print("***POV PROCESS FAILED : %s ***" % poll_result)
self.update_stats("", "POV-Ray 3.7: Failed")
break
time.sleep(self.DELAY)
if os.path.exists(self._temp_file_out.name):
# print("***POV FILE OK***")
self.update_stats("", "POV-Ray 3.7: Rendering")
prev_size = -1
def update_image():
# print("***POV UPDATING IMAGE***")
result = self.begin_result(0, 0, x, y)
lay = result.layers[0]
# possible the image wont load early on.
try:
lay.load_from_file(self._temp_file_out.name)
except SystemError:
pass
self.end_result(result)
# Update while POV-Ray renders
while True:
# print("***POV RENDER LOOP***")
# test if POV-Ray exists
if self._process.poll() is not None:
print("***POV PROCESS FINISHED***")
update_image()
break
# user exit
if self.test_break():
try:
self._process.terminate()
print("***POV PROCESS INTERRUPTED***")
except OSError:
pass
break
# Would be nice to redirect the output
# stdout_value, stderr_value = self._process.communicate() # locks
# check if the file updated
new_size = os.path.getsize(self._temp_file_out.name)
if new_size != prev_size:
update_image()
prev_size = new_size
time.sleep(self.DELAY)
else:
print("***POV FILE NOT FOUND***")
print("***POV FINISHED***")
#time.sleep(self.DELAY)
self._cleanup()