# ##### 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)
##################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
def povHasnoSpecularMaps():
if Level == 2:
file.write('#declare %s = finish {\n' % safety(name))
elif Level == 1:
file.write('#declare %s = finish {\n' % safety0(name))
elif Level == 3:
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)
#####################################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
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!
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.
#########################################################################################
elif Level == 1:
file.write('\tspecular 0\n')
elif Level == 3:
file.write('\tspecular 1\n')
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 Level != 1:
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))
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')
Level=1
povHasnoSpecularMaps()
Level=2
povHasnoSpecularMaps()
Level=3
povHasnoSpecularMaps()
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()