# ##### 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 #####
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'
if ext_orig == 'GIF': ext = 'gif'
if ext_orig == 'TGA': ext = 'tga'
if ext_orig == 'IFF': ext = 'iff'
if ext_orig == 'PPM': ext = 'ppm'
if ext_orig == 'PNG': ext = 'png'
if ext_orig == 'SYS': ext = 'sys'
if ext_orig in ('TIFF', 'TIF'): ext = 'tiff'
if ext_orig == 'EXR': ext = 'exr'#POV3.7 Only!
if 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 '
if ts.mapping=='SPHERE':image_map= ' map_type 1 '# map_type 7 in megapov
if ts.mapping=='TUBE':image_map= ' map_type 2 '
#if ts.mapping=='?':image_map= ' map_type 3 '# map_type 3 and 4 in development (?) for Povray, currently they just seem to default back to Flat (type 0)
#if ts.mapping=='?':image_map= ' map_type 4 '# map_type 3 and 4 in development (?) for Povray, 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
if wts.texture_coords=='ANGMAP':image_mapBG= ' map_type 1 '
if 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: #was that the proper error type?
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
##############safety string name material
def safety(name):
try:
if int(name) > 0: prefix='shader'
except: prefix=''
prefix='shader_'
return prefix+name
def safety0(name): #used for 0 of specular map
try:
if int(name) > 0: prefix='shader'
except: prefix=''
prefix='shader_'
return prefix+name+'0'
def safety1(name): #used for 1 of specular map
try:
if int(name) > 0: prefix='shader'
except: prefix=''
prefix='shader_'
return prefix+name+'1'
##############end safety string name material
##############################EndSF###########################
def write_pov(filename, scene=None, info_callback=None):
file = open(filename, 'w')
# Only for testing
if not scene:
scene = bpy.data.scenes[0]
render = scene.render
world = scene.world
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
return name
def writeMatrix(matrix):
file.write('\tmatrix <%.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):
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
file.write('\tinterior { 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
file.write('\tinterior { ior %.6f\n' % material.raytrace_transparency.ior)
else:
file.write('\tinterior { ior %.6f\n' % material.raytrace_transparency.ior)
#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 material.pov_fake_caustics:
file.write('\tcaustics %.3g\n' % material.pov_fake_caustics_power)
if material.pov_photons_refraction:
file.write('\tdispersion %.3g\n' % material.pov_photons_dispersion) #Default of 1 means no dispersion
#TODO
# Other interior args
# fade_distance 2
# fade_power [Value]
# fade_color
# (variable) dispersion_samples (constant count for now)
file.write('\t}\n')
if material.pov_photons_refraction or material.pov_photons_reflection:
file.write('\tphotons{\n')
file.write('\t\ttarget\n')
if material.pov_photons_refraction:
file.write('\t\trefraction on\n')
if material.pov_photons_reflection:
file.write('\t\treflection on\n')
file.write('\t}\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)
file.write('#declare %s = finish {\n' % safety0(name))
if material:
#Povray 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
#But the conserve energy keyword does not keep their sum realistic in pov
#we can add this feature before the script writes their values to pov scene
if material.pov_conserve_energy:
#Total of spec + diff 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)
else:
frontDiffuse = 1-(1-backDiffuse)
# 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 / 511.0)
#####################################Diffuse Shader######################################
if material.diffuse_shader == 'OREN_NAYAR':
file.write('\tbrilliance %.3g\n' % (0.9+material.roughness))#blender roughness is what is generally called oren nayar Sigma, and brilliance in povray
if material.diffuse_shader == 'TOON':
file.write('\tbrilliance %.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 povray
if material.diffuse_shader == 'MINNAERT':
#file.write('\taoi %.3g\n' % material.darkness) #not real syntax, aoi is a pattern.
pass # Have to put this in texture since AOI and slope map are patterns
if material.diffuse_shader == 'FRESNEL':
#file.write('\taoi %.3g\n' % material.diffuse_fresnel_factor) #not real syntax, aoi is a pattern.
pass # Have to put this in texture since AOI and slope map are patterns
if material.diffuse_shader == 'LAMBERT':
file.write('\tbrilliance 1.8\n') #trying to best match lambert attenuation by that constant brilliance value
#########################################################################################
file.write('\tdiffuse %.3g %.3g\n' % (frontDiffuse, backDiffuse))
file.write('\tspecular 0\n')
file.write('\tambient %.3g\n' % material.ambient)
#file.write('\tambient rgb <%.3g, %.3g, %.3g>\n' % tuple([c*material.ambient for c in world.ambient_color])) # povray blends the global value
file.write('\temission %.3g\n' % material.emit) #New in povray 3.7
if material.pov_conserve_energy:
file.write('\tconserve_energy\n')#added for more realistic shading. Needs some checking to see if it really works. --Maurice.
# 'phong 70.0 '
if material.subsurface_scattering.use:
subsurface_scattering = material.subsurface_scattering
file.write('\tsubsurface { <%.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-subsurface_scattering.color[0], 1-subsurface_scattering.color[1], 1-subsurface_scattering.color[2]))
if material.pov_irid_enable:
file.write('\tirid { %.4g thickness %.4g turbulence %.4g }' % (material.pov_irid_amount, material.pov_irid_thickness, material.pov_irid_turbulence))
file.write('}\n')
##################Plain version of the finish (previous ones are variations for specular/Mirror texture channel map with alternative finish of 0 specular and no mirror reflection###
file.write('#declare %s = finish {\n' % safety(name))
if material:
#Povray 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)
else:
frontDiffuse = 1-(1-backDiffuse)
# 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 / 511.0)
#####################################Diffuse Shader######################################
if material.diffuse_shader == 'OREN_NAYAR':
file.write('\tbrilliance %.3g\n' % (0.9+material.roughness))#blender roughness is what is generally called oren nayar Sigma, and brilliance in povray
if material.diffuse_shader == 'TOON':
file.write('\tbrilliance %.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 povray
if material.diffuse_shader == 'MINNAERT':
#file.write('\taoi %.3g\n' % material.darkness)
pass #let's keep things simple for now
if material.diffuse_shader == 'FRESNEL':
#file.write('\taoi %.3g\n' % material.diffuse_fresnel_factor)
pass #let's keep things simple for now
if material.diffuse_shader == 'LAMBERT':
file.write('\tbrilliance 1.8\n') #trying to best match lambert attenuation by that constant brilliance value
####################################Specular Shader######################################
if material.specular_shader == 'COOKTORR' or material.specular_shader == 'PHONG':#No difference between phong and cook torrence in blender HaHa!
file.write('\tphong %.3g\n' % (material.specular_intensity))
file.write('\tphong_size %.3g\n'% (material.specular_hardness / 2 + 0.25))
if material.specular_shader == 'BLINN':#Povray "specular" keyword corresponds to a Blinn model, without the ior.
file.write('\tspecular %.3g\n' % (material.specular_intensity * (material.specular_ior/4))) #Use blender Blinn's IOR just as some factor for spec intensity
file.write('\troughness %.3g\n' % roughness)
#Could use brilliance 2(or varying around 2 depending on ior or factor) too.
if material.specular_shader == 'TOON':
file.write('\tphong %.3g\n' % (material.specular_intensity * 2))
file.write('\tphong_size %.3g\n' % (0.1+material.specular_toon_smooth / 2)) #use extreme phong_size
if material.specular_shader == 'WARDISO':
file.write('\tspecular %.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.
file.write('\troughness %.4g\n' % (0.0005+material.specular_slope/10)) #find best suited default constant for brilliance Use both phong and specular for some values.
file.write('\tbrilliance %.4g\n' % (1.8-material.specular_slope*1.8)) #find best suited default constant for brilliance Use both phong and specular for some values.
#########################################################################################
file.write('\tdiffuse %.3g %.3g\n' % (frontDiffuse, backDiffuse))
file.write('\tambient %.3g\n' % material.ambient)
#file.write('\tambient rgb <%.3g, %.3g, %.3g>\n' % tuple([c*material.ambient for c in world.ambient_color])) # povray blends the global value
file.write('\temission %.3g\n' % material.emit) #New in povray 3.7
#file.write('\troughness %.3g\n' % roughness) #povray just ignores roughness if there's no specular keyword
if material.pov_conserve_energy:
file.write('\tconserve_energy\n')#added for more realistic shading. Needs some checking to see if it really works. --Maurice.
# 'phong 70.0 '
if material.raytrace_mirror.use:
raytrace_mirror = material.raytrace_mirror
if raytrace_mirror.reflect_factor:
file.write('\treflection {\n')
file.write('\t\trgb <%.3g, %.3g, %.3g>' % tuple(material.mirror_color))
if material.pov_mirror_metallic:
file.write('\t\tmetallic %.3g' % (raytrace_mirror.reflect_factor))
if material.pov_mirror_use_IOR: #WORKING ?
file.write('\t\tfresnel 1 ')#Removed from the line below: gives a more physically correct material but needs proper IOR. --Maurice
file.write('\t\tfalloff %.3g exponent %.3g} ' % (raytrace_mirror.fresnel, raytrace_mirror.fresnel_factor))
if material.subsurface_scattering.use:
subsurface_scattering = material.subsurface_scattering
file.write('\tsubsurface { <%.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-subsurface_scattering.color[0], 1-subsurface_scattering.color[1], 1-subsurface_scattering.color[2]))
if material.pov_irid_enable:
file.write('\tirid { %.4g thickness %.4g turbulence %.4g }' % (material.pov_irid_amount, material.pov_irid_thickness, material.pov_irid_turbulence))
file.write('}\n')
##################Full specular version of the finish an increased roughness seems necessary here to perceive anything###
file.write('#declare %s = finish {\n' % safety1(name))
if material:
#Povray 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)
else:
frontDiffuse = 1-(1-backDiffuse)
# 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 / 511.0)
####################################Specular Shader######################################
if material.specular_shader == 'COOKTORR' or material.specular_shader == 'PHONG':#No difference between phong and cook torrence in blender HaHa!
file.write('\tphong %.3g\n' % (material.specular_intensity*3))#Multiplied for max value of Textured Spec.
file.write('\tphong_size %.3g\n'% (material.specular_hardness /100 + 0.0005)) # /2-->/500; 0.25-->0.0025 Larger highlight for max value of Textured Spec.
if material.specular_shader == 'BLINN':#Povray "specular" keyword corresponds to a Blinn model, hmhmmmm...
file.write('\tspecular %.3g\n' % (material.specular_intensity * 5)) #Multiplied for max value of Textured Spec.
file.write('\troughness %.3g\n' % (roughness*10)) #Multiplied for max value of Textured Spec.
if material.specular_shader == 'TOON':
file.write('\tphong %.3g\n' % (material.specular_intensity*3))#Multiplied for max value of Textured Spec.
file.write('\tphong_size %.3g\n' % (0.1+material.specular_toon_smooth / 10)) #use extreme phong_size
if material.specular_shader == 'WARDISO':
file.write('\tspecular %.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.
file.write('\troughness %.4g\n' % (0.0005+material.specular_slope*5)) #Multiplied for max value of Textured Spec.
file.write('\tbrilliance %.4g\n' % (1.8-material.specular_slope*1.8)) #find best suited default constant for brilliance Use both phong and specular for some values.
#########################################################################################
file.write('\tdiffuse %.3g %.3g\n' % (frontDiffuse, backDiffuse))
file.write('\tambient %.3g\n' % material.ambient)
#file.write('\tambient rgb <%.3g, %.3g, %.3g>\n' % tuple([c*material.ambient for c in world.ambient_color])) # povray blends the global value
file.write('\temission %.3g\n' % material.emit) #New in povray 3.7
if material.pov_conserve_energy:
file.write('\tconserve_energy\n')#added for more realistic shading. Needs some checking to see if it really works. --Maurice.
# 'phong 70.0 '
if material.raytrace_mirror.use:
raytrace_mirror = material.raytrace_mirror
if raytrace_mirror.reflect_factor:
file.write('\treflection {\n')
file.write('\t\trgb <%.3g, %.3g, %.3g>' % tuple(material.mirror_color))
if material.pov_mirror_metallic:
file.write('\t\tmetallic %.3g' % (raytrace_mirror.reflect_factor))
if material.pov_mirror_use_IOR: #WORKING ?
file.write('\t\tfresnel 1 ')#Removed from the line below: gives a more physically correct material but needs proper IOR. --Maurice
file.write('\t\tfalloff %.3g exponent %.3g} ' % (raytrace_mirror.fresnel, raytrace_mirror.fresnel_factor))
if material.subsurface_scattering.use:
subsurface_scattering = material.subsurface_scattering
file.write('\tsubsurface { <%.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-subsurface_scattering.color[0], 1-subsurface_scattering.color[1], 1-subsurface_scattering.color[2]))
##sqrt(subsurface_scattering.radius[1] above is just some non linear relation to keep "proportions" between blender presets values and povray. The following paper has samples of sigma numbers we can put directly into pov to get good results:
##http://graphics.stanford.edu/papers/bssrdf/bssrdf.pdf
##Whereas Blender probably uses That:
##http://graphics.stanford.edu/papers/fast_bssrdf/fast_bssrdf.pdf
if material.pov_irid_enable:
file.write('\tirid { %.4g thickness %.4g turbulence %.4g }' % (material.pov_irid_amount, material.pov_irid_thickness, material.pov_irid_turbulence))
else:
file.write('\tdiffuse 0.8\n')
file.write('\tphong 70.0\n')
#file.write('\tspecular 0.2\n')
# This is written into the object
'''
if material and material.transparency_method=='RAYTRACE':
'interior { ior %.3g} ' % material.raytrace_transparency.ior
'''
#file.write('\t\t\tcrand 1.0\n') # Sand granyness
#file.write('\t\t\tmetallic %.6f\n' % material.spec)
#file.write('\t\t\tphong %.6f\n' % material.spec)
#file.write('\t\t\tphong_size %.6f\n' % material.spec)
#file.write('\t\t\tbrilliance %.6f ' % (material.specular_hardness/256.0) # Like hardness
file.write('}\n')
def exportCamera():
camera = scene.camera
matrix = camera.matrix_world
focal_point = camera.data.dof_distance
# compute resolution
Qsize = float(render.resolution_x) / float(render.resolution_y)
file.write('#declare camLocation = <%.6f, %.6f, %.6f>;\n' % (matrix[3][0], matrix[3][1], matrix[3][2]))
file.write('#declare camLookAt = <%.6f, %.6f, %.6f>;\n' % tuple([degrees(e) for e in matrix.rotation_part().to_euler()]))
file.write('camera {\n')
file.write('\tlocation <0, 0, 0>\n')
file.write('\tlook_at <0, 0, -1>\n')
file.write('\tright <%s, 0, 0>\n' % - Qsize)
file.write('\tup <0, 1, 0>\n')
file.write('\tangle %f \n' % (360.0 * atan(16.0 / camera.data.lens) / pi))
file.write('\trotate <%.6f, %.6f, %.6f>\n' % tuple([degrees(e) for e in matrix.rotation_part().to_euler()]))
file.write('\ttranslate <%.6f, %.6f, %.6f>\n' % (matrix[3][0], matrix[3][1], matrix[3][2]))
if focal_point != 0:
file.write('\taperture 0.25\n') # fixed blur amount for now to do, add slider a button?
file.write('\tblur_samples 96 128\n')
file.write('\tvariance 1/10000\n')
file.write('\tfocal_point <0, 0, %f>\n' % focal_point)
file.write('}\n')
def exportLamps(lamps):
# Get all lamps
for ob in lamps:
lamp = ob.data
matrix = ob.matrix_world
color = tuple([c * lamp.energy *2 for c in lamp.color]) # Colour is modified by energy #muiltiplie by 2 for a better match --Maurice
file.write('light_source {\n')
file.write('\t< 0,0,0 >\n')
file.write('\tcolor rgb<%.3g, %.3g, %.3g>\n' % color)
if lamp.type == 'POINT': # Point Lamp
pass
elif lamp.type == 'SPOT': # Spot
file.write('\tspotlight\n')
# Falloff is the main radius from the centre line
file.write('\tfalloff %.2f\n' % (degrees(lamp.spot_size) / 2.0)) # 1 TO 179 FOR BOTH
file.write('\tradius %.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.
file.write('\ttightness 0\n') # 0:10f
file.write('\tpoint_at <0, 0, -1>\n')
elif lamp.type == 'SUN':
file.write('\tparallel\n')
file.write('\tpoint_at <0, 0, -1>\n') # *must* be after 'parallel'
elif lamp.type == 'AREA':
file.write('\tfade_distance %.6f\n' % (lamp.distance / 5) )
file.write('\tfade_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
file.write('\tarea_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:
file.write('\tjitter\n')
else:
file.write('\tadaptive 1\n')
file.write('\tjitter\n')
if lamp.type == 'HEMI':#HEMI never has any shadow attribute
file.write('\tshadowless\n')
elif lamp.shadow_method == 'NOSHADOW':
file.write('\tshadowless\n')
if lamp.type != 'SUN' and lamp.type!='AREA' and lamp.type!='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.
file.write('\tfade_distance %.6f\n' % (lamp.distance / 5) )
if lamp.falloff_type == 'INVERSE_SQUARE':
file.write('\tfade_power %d\n' % 2) # Use blenders lamp quad equivalent
elif lamp.falloff_type == 'INVERSE_LINEAR':
file.write('\tfade_power %d\n' % 1) # Use blenders lamp linear
elif lamp.falloff_type == 'CONSTANT': #Supposing 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.
file.write('\tfade_power %d\n' % 4)
writeMatrix(matrix)
file.write('}\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.
for ob in metas:
meta = ob.data
file.write('blob {\n')
file.write('\t\tthreshold %.4g\n' % meta.threshold)
try:
material = meta.materials[0] # lame! - blender cant do enything else.
except:
material = None
for elem in meta.elements:
if elem.type not in ('BALL', 'ELLIPSOID'):
continue # Not supported
loc = elem.co
stiffness = elem.stiffness
if elem.use_negative:
stiffness = - stiffness
if elem.type == 'BALL':
file.write('\tsphere { <%.6g, %.6g, %.6g>, %.4g, %.4g ' % (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
file.write('\tsphere { <%.6g, %.6g, %.6g>, %.4g, %.4g ' % (loc.x / elem.size_x, loc.y / elem.size_y, loc.z / elem.size_z, elem.radius, stiffness))
file.write('scale <%.6g, %.6g, %.6g> ' % (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
file.write('pigment {rgbft<%.3g, %.3g, %.3g, %.3g, %.3g>} finish {%s} }\n' % \
(diffuse_color[0], diffuse_color[1], diffuse_color[2], 1.0 - material.alpha, trans, materialNames[material.name]))
else:
file.write('pigment {rgb<1 1 1>} finish {%s} }\n' % DEF_MAT_NAME) # Write the finish last.
writeObjectMaterial(material)
writeMatrix(ob.matrix_world)
file.write('}\n')
def exportMeshs(scene, sel):
ob_num = 0
for ob in sel:
ob_num += 1
if ob.type in ('LAMP', 'CAMERA', 'EMPTY', 'META', 'ARMATURE', 'LATTICE'):
continue
me = ob.data
me_materials = me.materials
me = ob.create_mesh(scene, True, 'RENDER')
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 = ob.matrix_world
try:
uv_layer = me.uv_textures.active.data
except:
uv_layer = None
try:
vcol_layer = me.vertex_colors.active.data
except:
vcol_layer = None
faces_verts = [f.vertices[:] for f in me.faces]
faces_normals = [tuple(f.normal) for f in me.faces]
verts_normals = [tuple(v.normal) for v in me.vertices]
# quads incur an extra face
quadCount = sum(1 for f in faces_verts if len(f) == 4)
file.write('mesh2 {\n')
file.write('\tvertex_vectors {\n')
file.write('\t\t%s' % (len(me.vertices))) # vert count
for v in me.vertices:
file.write(',\n\t\t<%.6f, %.6f, %.6f>' % tuple(v.co)) # vert count
file.write('\n }\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]
file.write('\tnormal_vectors {\n')
file.write('\t\t%d' % len(uniqueNormals)) # vert count
idx = 0
for no, index in uniqueNormals.items():
file.write(',\n\t\t<%.6f, %.6f, %.6f>' % no) # vert count
index[0] = idx
idx += 1
file.write('\n }\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[tuple(uv)] = [-1]
file.write('\tuv_vectors {\n')
#print unique_uvs
file.write('\t\t%s' % (len(uniqueUVs))) # vert count
idx = 0
for uv, index in uniqueUVs.items():
file.write(',\n\t\t<%.6f, %.6f>' % uv)
index[0] = idx
idx += 1
'''
else:
# Just add 1 dummy vector, no real UV's
file.write('\t\t1') # vert count
file.write(',\n\t\t<0.0, 0.0>')
'''
file.write('\n }\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 = tuple(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 = tuple(material.diffuse_color)
key = diffuse_color[0], diffuse_color[1], diffuse_color[2], i # i == f.mat
vertCols[key] = [-1]
# Vert Colours
file.write('\ttexture_list {\n')
file.write('\t\t%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 and material.transparency_method == 'RAYTRACE':
trans = 1.0 - material.raytrace_transparency.filter
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)
if image_filename:
if t.use_map_color_diffuse:
texturesDif = image_filename
colvalue = t.default_value
t_dif = t
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
##############################################################################################################
file.write('\n\t\ttexture {') #THIS AREA NEEDS TO LEAVE THE TEXTURE OPEN UNTIL ALL MAPS ARE WRITTEN DOWN. --MR
##############################################################################################################
if material.diffuse_shader == 'MINNAERT':
file.write('\n\t\t\taoi')
file.write('\n\t\t\ttexture_map {')
file.write('\n\t\t\t\t[%.3g finish {diffuse %.3g}]' % ((material.darkness/2), (2-material.darkness)))
file.write('\n\t\t\t\t[%.3g' % (1-(material.darkness/2)))
######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
file.write('\n\t\t\tslope { lampTarget }')
file.write('\n\t\t\ttexture_map {')
file.write('\n\t\t\t\t[%.3g finish {diffuse %.3g}]' % ((material.diffuse_fresnel/2), (2-material.diffuse_fresnel_factor)))
file.write('\n\t\t\t\t[%.3g' % (1-(material.diffuse_fresnel/2)))
#if material.diffuse_shader == 'FRESNEL': pigment pattern aoi pigment and texture map above, the rest below as one of its entry
##########################################################################################################################
if texturesSpec !='':
file.write('\n\t\t\t\tpigment_pattern {')
mappingSpec = (" translate <%.4g-0.75,%.4g-0.75,%.4g-0.75> scale <%.4g,%.4g,%.4g>" % (t_spec.offset.x / 10 ,t_spec.offset.y / 10 ,t_spec.offset.z / 10, t_spec.scale.x / 2.25, t_spec.scale.y / 2.25, t_spec.scale.z / 2.25)) #strange that the translation factor for scale is not the same as for translate. ToDo: verify both matches with blender internal.
file.write('\n\t\t\t\t\tuv_mapping image_map{%s \"%s\" %s}%s}' % (imageFormat(texturesSpec) ,texturesSpec ,imgMap(t_spec),mappingSpec))
file.write('\n\t\t\t\t\t\ttexture_map {')
file.write('\n\t\t\t\t\t\t\t[0 ')
if texturesDif == '':
if texturesAlpha !='':
mappingAlpha = (" translate <%.4g-0.75,%.4g-0.75,%.4g-0.75> scale <%.4g,%.4g,%.4g>" % (t_alpha.offset.x / 10 ,t_alpha.offset.y / 10 ,t_alpha.offset.z / 10, t_alpha.scale.x / 2.25, t_alpha.scale.y / 2.25, t_alpha.scale.z / 2.25)) #strange that the translation factor for scale is not the same as for translate. ToDo: verify both matches with blender internal.
file.write('\n\t\t\t\tpigment {pigment_pattern {uv_mapping image_map{%s \"%s\" %s}%s}' % (imageFormat(texturesAlpha) ,texturesAlpha ,imgMap(t_alpha),mappingAlpha))
file.write('\n\t\t\t\t\tpigment_map {')
file.write('\n\t\t\t\t\t\t[0 color rgbft<0,0,0,1,1>]')
file.write('\n\t\t\t\t\t\t[1 color rgbft<%.3g, %.3g, %.3g, %.3g, %.3g>]\n\t\t\t\t\t}' % (col[0], col[1], col[2], 1.0 - material.alpha, trans))
file.write('\n\t\t\t\t}')
else:
file.write('\n\t\t\t\tpigment {rgbft<%.3g, %.3g, %.3g, %.3g, %.3g>}' % (col[0], col[1], col[2], 1.0 - material.alpha, trans))
if texturesSpec !='':
file.write('finish {%s}' % (safety0(material_finish)))
else:
file.write('finish {%s}' % (safety(material_finish)))
else:
mappingDif = (" translate <%.4g-0.75,%.4g-0.75,%.4g-0.75> scale <%.4g,%.4g,%.4g>" % (t_dif.offset.x / 10 ,t_dif.offset.y / 10 ,t_dif.offset.z / 10, t_dif.scale.x / 2.25, t_dif.scale.y / 2.25, t_dif.scale.z / 2.25)) #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-0.75,%.4g-0.75,%.4g-0.75> scale <%.4g,%.4g,%.4g>" % (t_alpha.offset.x / 10 ,t_alpha.offset.y / 10 ,t_alpha.offset.z / 10, t_alpha.scale.x / 2.25, t_alpha.scale.y / 2.25, t_alpha.scale.z / 2.25)) #strange that the translation factor for scale is not the same as for translate. ToDo: verify both matches with blender internal.
file.write('\n\t\t\t\tpigment {pigment_pattern {uv_mapping image_map{%s \"%s\" %s}%s}' % (imageFormat(texturesAlpha),texturesAlpha,imgMap(t_alpha),mappingAlpha))
file.write('\n\t\t\t\t\tpigment_map {\n\t\t\t\t\t\t[0 color rgbft<0,0,0,1,1>]')
file.write('\n\t\t\t\t\t\t[1 uv_mapping image_map {%s \"%s\" %s}%s]\n\t\t\t\t}' % (imageFormat(texturesDif),texturesDif,imgMap(t_dif),mappingDif))
file.write('\n\t\t\t\t}')
else:
file.write("\n\t\t\t\tpigment {uv_mapping image_map {%s \"%s\" %s}%s}" % (imageFormat(texturesDif),texturesDif,imgMap(t_dif),mappingDif))
if texturesSpec !='':
file.write('finish {%s}' % (safety0(material_finish)))
else:
file.write('finish {%s}' % (safety(material_finish)))
## 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
mappingNor = (" translate <%.4g-0.75,%.4g-0.75,%.4g-0.75> scale <%.4g,%.4g,%.4g>" % (t_nor.offset.x / 10 ,t_nor.offset.y / 10 ,t_nor.offset.z / 10, t_nor.scale.x / 2.25, t_nor.scale.y / 2.25, t_nor.scale.z / 2.25))
#imageMapNor = ("{bump_map {%s \"%s\" %s mapping}" % (imageFormat(texturesNorm),texturesNorm,imgMap(t_nor)))
#We were not using the above maybe we should?
file.write("\n\t\t\t\tnormal {uv_mapping bump_map {%s \"%s\" %s bump_size %.4g }%s}" % (imageFormat(texturesNorm),texturesNorm,imgMap(t_nor),(t_nor.normal_factor * 10),mappingNor))
if texturesSpec !='':
file.write('\n\t\t\t\t\t\t\t]')
################################Second index for mapping specular max value##################################################################################################
file.write('\n\t\t\t\t\t\t\t[1 ')
if texturesDif == '':
if texturesAlpha !='':
mappingAlpha = (" translate <%.4g-0.75,%.4g-0.75,%.4g-0.75> scale <%.4g,%.4g,%.4g>" % (t_alpha.offset.x / 10 ,t_alpha.offset.y / 10 ,t_alpha.offset.z / 10, t_alpha.scale.x / 2.25, t_alpha.scale.y / 2.25, t_alpha.scale.z / 2.25)) #strange that the translation factor for scale is not the same as for translate. ToDo: verify both matches with blender internal.
file.write('\n\t\t\t\tpigment {pigment_pattern {uv_mapping image_map{%s \"%s\" %s}%s}' % (imageFormat(texturesAlpha) ,texturesAlpha ,imgMap(t_alpha),mappingAlpha))
file.write('\n\t\t\t\t\tpigment_map {')
file.write('\n\t\t\t\t\t\t[0 color rgbft<0,0,0,1,1>]')
file.write('\n\t\t\t\t\t\t[1 color rgbft<%.3g, %.3g, %.3g, %.3g, %.3g>]\n\t\t\t\t\t}' % (col[0], col[1], col[2], 1.0 - material.alpha, trans))
file.write('\n\t\t\t\t}')
else:
file.write('\n\t\t\t\tpigment {rgbft<%.3g, %.3g, %.3g, %.3g, %.3g>}' % (col[0], col[1], col[2], 1.0 - material.alpha, trans))
if texturesSpec !='':
file.write('finish {%s}' % (safety1(material_finish)))
else:
file.write('finish {%s}' % (safety(material_finish)))
else:
mappingDif = (" translate <%.4g-0.75,%.4g-0.75,%.4g-0.75> scale <%.4g,%.4g,%.4g>" % (t_dif.offset.x / 10 ,t_dif.offset.y / 10 ,t_dif.offset.z / 10, t_dif.scale.x / 2.25, t_dif.scale.y / 2.25, t_dif.scale.z / 2.25)) #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-0.75,%.4g-0.75,%.4g-0.75> scale <%.4g,%.4g,%.4g>" % (t_alpha.offset.x / 10 ,t_alpha.offset.y / 10 ,t_alpha.offset.z / 10, t_alpha.scale.x / 2.25, t_alpha.scale.y / 2.25, t_alpha.scale.z / 2.25)) #strange that the translation factor for scale is not the same as for translate. ToDo: verify both matches with blender internal.
file.write('\n\t\t\t\tpigment {pigment_pattern {uv_mapping image_map{%s \"%s\" %s}%s}' % (imageFormat(texturesAlpha),texturesAlpha,imgMap(t_alpha),mappingAlpha))
file.write('\n\t\t\t\tpigment_map {\n\t\t\t\t\t[0 color rgbft<0,0,0,1,1>]')
file.write('\n\t\t\t\t\t\t[1 uv_mapping image_map {%s \"%s\" %s}%s]\n\t\t\t\t\t}' % (imageFormat(texturesDif),texturesDif,imgMap(t_dif),mappingDif))
file.write('\n\t\t\t\t}')
else:
file.write("\n\t\t\tpigment {uv_mapping image_map {%s \"%s\" %s}%s}" % (imageFormat(texturesDif),texturesDif,imgMap(t_dif),mappingDif))
if texturesSpec !='':
file.write('finish {%s}' % (safety1(material_finish)))
else:
file.write('finish {%s}' % (safety(material_finish)))
## 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
mappingNor = (" translate <%.4g-0.75,%.4g-0.75,%.4g-0.75> scale <%.4g,%.4g,%.4g>" % (t_nor.offset.x / 10 ,t_nor.offset.y / 10 ,t_nor.offset.z / 10, t_nor.scale.x / 2.25, t_nor.scale.y / 2.25, t_nor.scale.z / 2.25))
#imageMapNor = ("{bump_map {%s \"%s\" %s mapping}" % (imageFormat(texturesNorm),texturesNorm,imgMap(t_nor)))
#We were not using the above maybe we should?
file.write("\n\t\t\t\tnormal {uv_mapping bump_map {%s \"%s\" %s bump_size %.4g }%s}" % (imageFormat(texturesNorm),texturesNorm,imgMap(t_nor),(t_nor.normal_factor * 10),mappingNor))
if texturesSpec !='':
file.write('\n\t\t\t\t\t\t\t]')
file.write('\n\t\t\t\t}')
#End of slope/ior texture_map
if material.diffuse_shader == 'MINNAERT' or material.diffuse_shader == 'FRESNEL':
file.write('\n\t\t\t\t]')
file.write('\n\t\t\t}')
file.write('\n\t\t}') #THEN IT CAN CLOSE IT --MR
############################################################################################################
index[0] = idx
idx += 1
file.write('\n\t}\n')
# Face indicies
file.write('\tface_indices {\n')
file.write('\t\t%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:
indicies = (0, 1, 2), (0, 2, 3)
else:
indicies = ((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 indicies:
file.write(',\n\t\t<%d,%d,%d>' % (fv[i1], fv[i2], fv[i3])) # vert count
else:
material = me_materials[material_index]
for i1, i2, i3 in indicies:
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\t\t<%d,%d,%d>, %d,%d,%d' % (fv[i1], fv[i2], fv[i3], ci1, ci2, ci3)) # vert count
file.write('\n }\n')
# normal_indices indicies
file.write('\tnormal_indices {\n')
file.write('\t\t%d' % (len(me.faces) + quadCount)) # faces count
for fi, fv in enumerate(faces_verts):
if len(fv) == 4:
indicies = (0, 1, 2), (0, 2, 3)
else:
indicies = ((0, 1, 2),)
for i1, i2, i3 in indicies:
if f.use_smooth:
file.write(',\n\t\t<%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\t\t<%d,%d,%d>' % (idx, idx, idx)) # vert count
file.write('\n }\n')
if uv_layer:
file.write('\tuv_indices {\n')
file.write('\t\t%d' % (len(me.faces) + quadCount)) # faces count
for fi, fv in enumerate(faces_verts):
if len(fv) == 4:
indicies = (0, 1, 2), (0, 2, 3)
else:
indicies = ((0, 1, 2),)
uv = uv_layer[fi]
if len(faces_verts[fi]) == 4:
uvs = tuple(uv.uv1), tuple(uv.uv2), tuple(uv.uv3), tuple(uv.uv4)
else:
uvs = tuple(uv.uv1), tuple(uv.uv2), tuple(uv.uv3)
for i1, i2, i3 in indicies:
file.write(',\n\t\t<%d,%d,%d>' %\
(uniqueUVs[uvs[i1]][0],\
uniqueUVs[uvs[i2]][0],\
uniqueUVs[uvs[i3]][0]))
file.write('\n }\n')
if me.materials:
try:
material = me.materials[0] # dodgy
writeObjectMaterial(material)
except IndexError:
print(me)
writeMatrix(matrix)
file.write('}\n')
bpy.data.meshes.remove(me)
def exportWorld(world):
render = scene.render
camera = scene.camera
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' :
file.write('background {rgbt<%.3g, %.3g, %.3g, 0.75>}\n' % (tuple(world.horizon_color)))
#Currently using no alpha with Sky option:
elif render.alpha_mode == 'SKY':
file.write('background {rgbt<%.3g, %.3g, %.3g, 0>}\n' % (tuple(world.horizon_color)))
#StraightAlpha:
else:
file.write('background {rgbt<%.3g, %.3g, %.3g, 1>}\n' % (tuple(world.horizon_color)))
#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 == '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
mappingBlend = (" translate <%.4g-0.5,%.4g-0.5,%.4g-0.5> rotate<%.4g,%.4g,%.4g> scale <%.4g,%.4g,%.4g>" % (t_blend.offset.x / 10 ,t_blend.offset.y / 10 ,t_blend.offset.z / 10, degrees(camera.rotation_euler[0]), degrees(camera.rotation_euler[1]), degrees(camera.rotation_euler[2]), t_blend.scale.x*0.85 , t_blend.scale.y*0.85 , t_blend.scale.z*0.85 ))
#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.
file.write('sky_sphere {\n')
file.write('\tpigment {\n')
file.write("\t\timage_map{%s \"%s\" %s}\n\t}\n\t%s\n" % (imageFormat(texturesBlend),texturesBlend,imgMapBG(t_blend),mappingBlend))
file.write('}\n')
#file.write('\t\tscale 2\n')
#file.write('\t\ttranslate -1\n')
#For only Background gradient
if not t:
if world.use_sky_blend:
file.write('sky_sphere {\n')
file.write('\tpigment {\n')
file.write('\t\tgradient z\n')#maybe Should follow the advice of POV doc about replacing gradient for skysphere..5.5
file.write('\t\tcolor_map {\n')
if render.alpha_mode == 'STRAIGHT':
file.write('\t\t\t[0.0 rgbt<%.3g, %.3g, %.3g, 1>]\n' % (tuple(world.horizon_color)))
file.write('\t\t\t[1.0 rgbt<%.3g, %.3g, %.3g, 1>]\n' % (tuple(world.zenith_color)))
elif render.alpha_mode == 'PREMUL':
file.write('\t\t\t[0.0 rgbt<%.3g, %.3g, %.3g, 0.99>]\n' % (tuple(world.horizon_color)))
file.write('\t\t\t[1.0 rgbt<%.3g, %.3g, %.3g, 0.99>]\n' % (tuple(world.zenith_color))) #aa premult not solved with transmit 1
else:
file.write('\t\t\t[0.0 rgbt<%.3g, %.3g, %.3g, 0>]\n' % (tuple(world.horizon_color)))
file.write('\t\t\t[1.0 rgbt<%.3g, %.3g, %.3g, 0>]\n' % (tuple(world.zenith_color)))
file.write('\t\t}\n')
file.write('\t}\n')
file.write('}\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 scene.pov_radio_enable = world.light_settings.use_indirect_light ?
###############################################################
mist = world.mist_settings
if mist.use_mist:
file.write('fog {\n')
file.write('\tdistance %.6f\n' % mist.depth)
file.write('\tcolor rgbt<%.3g, %.3g, %.3g, %.3g>\n' % (tuple(world.horizon_color) + (1 - mist.intensity,)))
#file.write('\tfog_offset %.6f\n' % mist.start)
#file.write('\tfog_alt 5\n')
#file.write('\tturbulence 0.2\n')
#file.write('\tturb_depth 0.3\n')
file.write('\tfog_type 1\n')
file.write('}\n')
def exportGlobalSettings(scene):
file.write('global_settings {\n')
file.write('\tmax_trace_level 7\n')
if scene.pov_radio_enable:
file.write('\tradiosity {\n')
file.write("\t\tadc_bailout %.4g\n" % scene.pov_radio_adc_bailout)
file.write("\t\talways_sample %d\n" % scene.pov_radio_always_sample)
file.write("\t\tbrightness %.4g\n" % scene.pov_radio_brightness)
file.write("\t\tcount %d\n" % scene.pov_radio_count)
file.write("\t\terror_bound %.4g\n" % scene.pov_radio_error_bound)
file.write("\t\tgray_threshold %.4g\n" % scene.pov_radio_gray_threshold)
file.write("\t\tlow_error_factor %.4g\n" % scene.pov_radio_low_error_factor)
file.write("\t\tmedia %d\n" % scene.pov_radio_media)
file.write("\t\tminimum_reuse %.4g\n" % scene.pov_radio_minimum_reuse)
file.write("\t\tnearest_count %d\n" % scene.pov_radio_nearest_count)
file.write("\t\tnormal %d\n" % scene.pov_radio_normal)
file.write("\t\trecursion_limit %d\n" % scene.pov_radio_recursion_limit)
file.write('\t}\n')
once=1
for material in bpy.data.materials:
if material.subsurface_scattering.use and once:
file.write("\tmm_per_unit %.6f\n" % (material.subsurface_scattering.scale * (-100) + 15))#In pov, the scale has reversed influence compared to blender. these number should correct that
once=0 #In povray, the scale factor for all subsurface shaders needs to be the same
if world:
file.write("\tambient_light rgb<%.3g, %.3g, %.3g>\n" % tuple(world.ambient_color))
if material.pov_photons_refraction or material.pov_photons_reflection:
file.write("\tphotons {\n")
file.write("\t\tspacing 0.003\n")
file.write("\t\tmax_trace_level 4\n")
file.write("\t\tadc_bailout 0.1\n")
file.write("\t\tgather 30, 150\n")
file.write("\t}\n")
file.write('}\n')
# Convert all materials to strings we can access directly per vertex.
writeMaterial(None) # default material
for material in bpy.data.materials:
writeMaterial(material)
exportCamera()
#exportMaterials()
sel = scene.objects
exportLamps([l for l in sel if l.type == 'LAMP'])
exportMeta([l for l in sel if l.type == 'META'])
exportMeshs(scene, sel)
exportWorld(scene.world)
exportGlobalSettings(scene)
file.close()
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, 'w')
file.write('Input_File_Name="%s"\n' % filename_pov)
file.write('Output_File_Name="%s"\n' % filename_image)
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 3.7, can show background color with alpha. In the long run using the Povray 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 render.use_antialiasing:
aa_mapping = {'5': 2, '8': 3, '11': 4, '16': 5} # method 2 (recursive) with higher max subdiv forced because no mipmapping in povray needs higher sampling.
file.write('Antialias=1\n')
file.write('Sampling_Method=2n')
file.write('Antialias_Depth=%d\n' % aa_mapping[render.antialiasing_samples])
file.write('Antialias_Threshold=0.1\n')#rather high settings but necessary.
file.write('Jitter=off\n')#prevent animation flicker
else:
file.write('Antialias=0\n')
file.close()
class PovrayRender(bpy.types.RenderEngine):
bl_idname = 'POVRAY_RENDER'
bl_label = "Povray 3.7"
DELAY = 0.02
def _export(self, scene):
import tempfile
self._temp_file_in = tempfile.mktemp(suffix='.pov')
self._temp_file_out = tempfile.mktemp(suffix='.png')#PNG with POV 3.7, can show the background color with alpha. In the long run using the Povray interactive preview like bishop 3D could solve the preview for all formats.
#self._temp_file_out = tempfile.mktemp(suffix='.tga')
self._temp_file_ini = tempfile.mktemp(suffix='.ini')
'''
self._temp_file_in = '/test.pov'
self._temp_file_out = '/test.png'#PNG with POV 3.7, can show the background color with alpha. In the long run using the Povray 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("", "POVRAY 3.7: " + txt)
write_pov(self._temp_file_in, scene, info_callback)
def _render(self):
try:
os.remove(self._temp_file_out) # so as not to load the old file
except: #OSError: #was that the proper error type?
pass
write_pov_ini(self._temp_file_ini, self._temp_file_in, self._temp_file_out)
print ("***-STARTING-***")
pov_binary = "povray"
if sys.platform == 'win32':
import winreg
regKey = winreg.OpenKey(winreg.HKEY_CURRENT_USER, 'Software\\POV-Ray\\v3.7\\Windows')
if bitness == 64:
pov_binary = winreg.QueryValueEx(regKey, 'Home')[0] + '\\bin\\pvengine64'
else:
pov_binary = winreg.QueryValueEx(regKey, 'Home')[0] + '\\bin\\pvengine'
if 1:
# TODO, when povray isnt 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]) # stdout=subprocess.PIPE, stderr=subprocess.PIPE
except OSError:
# TODO, report api
print("POVRAY 3.7: could not execute '%s', possibly povray 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))
print ("***-DONE-***")
return True
def _cleanup(self):
for f in (self._temp_file_in, self._temp_file_ini, self._temp_file_out):
try:
os.remove(f)
except OSError: #was that the proper error type?
pass
self.update_stats("", "")
def render(self, scene):
self.update_stats("", "POVRAY 3.7: Exporting data from Blender")
self._export(scene)
self.update_stats("", "POVRAY 3.7: Parsing File")
if not self._render():
self.update_stats("", "POVRAY 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):
if self.test_break():
try:
self._process.terminate()
except: #OSError: #was that the proper error type?
pass
break
if self._process.poll() != None:
self.update_stats("", "POVRAY 3.7: Failed")
break
time.sleep(self.DELAY)
if os.path.exists(self._temp_file_out):
self.update_stats("", "POVRAY 3.7: Rendering")
prev_size = -1
def update_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)
except: #OSError: #was that the proper error type?
pass
self.end_result(result)
# Update while povray renders
while True:
# test if povray exists
if self._process.poll() is not None:
update_image()
break
# user exit
if self.test_break():
try:
self._process.terminate()
except: #OSError: #was that the proper error type?
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)
if new_size != prev_size:
update_image()
prev_size = new_size
time.sleep(self.DELAY)
self._cleanup()