/usr/lib/blender/scripts/ogrepkg/materialexport.py is in blender-ogrexml-1.8 1.8.0+dfsg1-7.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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@author Michael Reimpell
"""
# Copyright (C) 2005 Michael Reimpell
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
# epydoc doc format
__docformat__ = "javadoc en"
import base
from base import *
import os
import shutil
import Blender
def clamp(value):
if value < 0.0:
value = 0.0
elif value > 1.0:
value = 1.0
return value
class MaterialInterface:
def getName(self):
"""Returns the material name.
@return Material name.
"""
return
def write(self, f):
"""Write material script entry.
All used texture files are registered at the MaterialManager.
@param f Material script file object to write into.
"""
return
class DefaultMaterial(MaterialInterface):
def __init__(self, manager, name):
self.manager = manager
self.name = name
return
def getName(self):
return self.name
def write(self, f):
f.write("material %s\n" % self.getName())
f.write("{\n")
self.writeTechniques(f)
f.write("}\n")
return
def writeTechniques(self, f):
f.write(indent(1) + "technique\n" + indent(1) + "{\n")
f.write(indent(2) + "pass\n" + indent(2) + "{\n")
# empty pass
f.write(indent(2) + "}\n") # pass
f.write(indent(1) + "}\n") # technique
return
class GameEngineMaterial(DefaultMaterial):
def __init__(self, manager, blenderMesh, blenderFace, colouredAmbient):
self.mesh = blenderMesh
self.face = blenderFace
self.colouredAmbient = colouredAmbient
# check if a Blender material is assigned
try:
blenderMaterial = self.mesh.materials[self.face.mat]
except:
blenderMaterial = None
self.material = blenderMaterial
DefaultMaterial.__init__(self, manager, self._createName())
return
def writeTechniques(self, f):
mat = self.material
if (not(mat)
and not(self.mesh.vertexColors)
and not(self.mesh.vertexUV or self.mesh.faceUV)):
# default material
DefaultMaterial.writeTechniques(self, f)
else:
# default material
# SOLID, white, no specular
f.write(indent(1)+"technique\n")
f.write(indent(1)+"{\n")
f.write(indent(2)+"pass\n")
f.write(indent(2)+"{\n")
# ambient
# (not used in Blender's game engine)
if mat:
if (not(mat.mode & Blender.Material.Modes["TEXFACE"])
and not(mat.mode & Blender.Material.Modes["VCOL_PAINT"])
and (self.colouredAmbient)):
ambientRGBList = mat.rgbCol
else:
ambientRGBList = [1.0, 1.0, 1.0]
# ambient <- amb * ambient RGB
ambR = clamp(mat.amb * ambientRGBList[0])
ambG = clamp(mat.amb * ambientRGBList[1])
ambB = clamp(mat.amb * ambientRGBList[2])
##f.write(indent(3)+"ambient %f %f %f\n" % (ambR, ambG, ambB))
# diffuse
# (Blender's game engine uses vertex colours
# instead of diffuse colour.
#
# diffuse is defined as
# (mat->r, mat->g, mat->b)*(mat->emit + mat->ref)
# but it's not used.)
if self.mesh.vertexColors:
#TODO: Broken in Blender 2.36.
# Blender does not handle "texface" mesh with vertex colours
f.write(indent(3)+"diffuse vertexcolour\n")
elif mat:
if (not(mat.mode & Blender.Material.Modes["TEXFACE"])
and not(mat.mode & Blender.Material.Modes["VCOL_PAINT"])):
# diffuse <- rgbCol
diffR = clamp(mat.rgbCol[0])
diffG = clamp(mat.rgbCol[1])
diffB = clamp(mat.rgbCol[2])
f.write(indent(3)+"diffuse %f %f %f\n" % (diffR, diffG, diffB))
elif (mat.mode & Blender.Material.Modes["VCOL_PAINT"]):
f.write(indent(3)+"diffuse vertexcolour\n")
if mat:
# specular <- spec * specCol, hard/4.0
specR = clamp(mat.spec * mat.specCol[0])
specG = clamp(mat.spec * mat.specCol[1])
specB = clamp(mat.spec * mat.specCol[2])
specShine = mat.hard/4.0
f.write(indent(3)+"specular %f %f %f %f\n" % (specR, specG, specB, specShine))
# emissive
# (not used in Blender's game engine)
if(not(mat.mode & Blender.Material.Modes["TEXFACE"])
and not(mat.mode & Blender.Material.Modes["VCOL_PAINT"])):
# emissive <-emit * rgbCol
emR = clamp(mat.emit * mat.rgbCol[0])
emG = clamp(mat.emit * mat.rgbCol[1])
emB = clamp(mat.emit * mat.rgbCol[2])
##f.write(indent(3)+"emissive %f %f %f\n" % (emR, emG, emB))
if self.mesh.faceUV:
# mesh has texture values, resp. tface data
# scene_blend <- transp
if (self.face.transp == Blender.Mesh.FaceTranspModes["ALPHA"]):
f.write(indent(3)+"scene_blend alpha_blend \n")
elif (self.face.transp == Blender.NMesh.FaceTranspModes["ADD"]):
f.write(indent(3)+"scene_blend add\n")
# cull_hardware/cull_software
if (self.face.mode & Blender.Mesh.FaceModes['TWOSIDE']):
f.write(indent(3) + "cull_hardware none\n")
f.write(indent(3) + "cull_software none\n")
# shading
# (Blender's game engine is initialized with glShadeModel(GL_FLAT))
##f.write(indent(3) + "shading flat\n")
# texture
if (self.face.mode & Blender.Mesh.FaceModes['TEX']) and (self.face.image):
f.write(indent(3)+"texture_unit\n")
f.write(indent(3)+"{\n")
f.write(indent(4)+"texture %s\n" % self.manager.registerTextureFile(self.face.image.filename))
f.write(indent(3)+"}\n") # texture_unit
f.write(indent(2)+"}\n") # pass
f.write(indent(1)+"}\n") # technique
return
# private
def _createName(self):
"""Create unique material name.
The name consists of several parts:
<OL>
<LI>rendering material name/</LI>
<LI>blend mode (ALPHA, ADD, SOLID)</LI>
<LI>/TEX</LI>
<LI>/texture file name</LI>
<LI>/VertCol</LI>
<LI>/TWOSIDE></LI>
</OL>
"""
materialName = ''
# nonempty rendering material?
if self.material:
materialName += self.material.getName() + '/'
# blend mode
if self.mesh.faceUV and (self.face.transp == Blender.Mesh.FaceTranspModes['ALPHA']):
materialName += 'ALPHA'
elif self.mesh.faceUV and (self.face.transp == Blender.Mesh.FaceTranspModes['ADD']):
materialName += 'ADD'
else:
materialName += 'SOLID'
# TEX face mode and texture?
if self.mesh.faceUV and (self.face.mode & Blender.Mesh.FaceModes['TEX']):
materialName += '/TEX'
if self.face.image:
materialName += '/' + PathName(self.face.image.filename).basename()
# vertex colours?
if self.mesh.vertexColors:
materialName += '/VertCol'
# two sided?
if self.mesh.faceUV and (self.face.mode & Blender.Mesh.FaceModes['TWOSIDE']):
materialName += '/TWOSIDE'
return materialName
class RenderingMaterial(DefaultMaterial):
def __init__(self, manager, blenderMesh, blenderFace, colouredAmbient):
self.mesh = blenderMesh
self.face = blenderFace
self.colouredAmbient = colouredAmbient
self.key = 0
self.mTexUVCol = None
self.mTexUVNor = None
self.mTexUVCsp = None
self.material = None
try:
self.material = self.mesh.materials[self.face.mat]
except IndexError:
Log.getSingleton().logWarning("Can't get material for mesh \"%s\"! Are any materials linked to object instead of linked to mesh?" % self.mesh.name)
if self.material:
self._generateKey()
DefaultMaterial.__init__(self, manager, self._createName())
else:
DefaultMaterial.__init__(self, manager, 'None')
return
def writeTechniques(self, f):
# parse material
if self.key:
if self.TECHNIQUES.has_key(self.key):
techniques = self.TECHNIQUES[self.key]
techniques(self, f)
else:
# default
self.writeColours(f)
else:
# Halo or empty material
DefaultMaterial('').writeTechniques(f)
return
def writeColours(self, f):
# receive_shadows
self.writeReceiveShadows(f, 1)
f.write(indent(1) + "technique\n" + indent(1) + "{\n")
f.write(indent(2) + "pass\n" + indent(2) + "{\n")
# ambient
if (self.colouredAmbient):
col = self.material.getRGBCol()
else:
col = [1.0, 1.0, 1.0]
self.writeAmbient(f, col, 3)
# diffuse
self.writeDiffuse(f, self.material.rgbCol, 3)
# specular
self.writeSpecular(f, 3)
# emissive
self.writeEmissive(f, self.material.rgbCol, 3)
# blend mode
self.writeSceneBlend(f,3)
# options
self.writeCommonOptions(f, 3)
# texture units
self.writeDiffuseTexture(f, 3)
f.write(indent(2) + "}\n") # pass
f.write(indent(1) + "}\n") # technique
return
def writeTexFace(self, f):
# preconditions: TEXFACE set
#
# Note that an additional Col texture replaces the
# TEXFACE texture instead of blend over according to alpha.
#
# (amb+emit)textureCol + diffuseLight*ref*textureCol + specular
#
imageFileName = None
if self.mTexUVCol:
# COL MTex replaces UV/Image Editor texture
imageFileName = self.manager.registerTextureFile(self.mTexUVCol.tex.getImage().getFilename())
elif (self.mesh.faceUV and self.face.image):
# UV/Image Editor texture
imageFileName = self.manager.registerTextureFile(self.face.image.filename)
self.writeReceiveShadows(f, 1)
f.write(indent(1) + "technique\n" + indent(1) + "{\n")
col = [1.0, 1.0, 1.0]
# texture pass
f.write(indent(2) + "pass\n" + indent(2) + "{\n")
self.writeAmbient(f, col, 3)
self.writeDiffuse(f, col, 3)
if not(imageFileName):
self.writeSpecular(f, 3)
self.writeEmissive(f, col, 3)
self.writeSceneBlend(f,3)
self.writeCommonOptions(f, 3)
if imageFileName:
f.write(indent(3) + "texture_unit\n")
f.write(indent(3) + "{\n")
f.write(indent(4) + "texture %s\n" % imageFileName)
if self.mTexUVCol:
self.writeTextureAddressMode(f, self.mTexUVCol, 4)
self.writeTextureFiltering(f, self.mTexUVCol, 4)
# multiply with factors
f.write(indent(4) + "colour_op modulate\n")
f.write(indent(3) + "}\n") # texture_unit
f.write(indent(2) + "}\n") # texture pass
# specular pass
f.write(indent(2) + "pass\n" + indent(2) + "{\n")
f.write(indent(3) + "ambient 0.0 0.0 0.0\n")
f.write(indent(3) + "diffuse 0.0 0.0 0.0\n")
self.writeSpecular(f, 3)
f.write(indent(3) + "scene_blend add\n")
hasAlpha = 0
if (self.material.getAlpha() < 1.0):
hasAlpha = 1
else:
for mtex in self.material.getTextures():
if mtex:
if ((mtex.tex.type == Blender.Texture.Types['IMAGE'])
and (mtex.mapto & Blender.Texture.MapTo['ALPHA'])):
hasAlpha = 1
if (hasAlpha):
f.write(indent(3) + "depth_write off\n")
self.writeCommonOptions(f, 3)
f.write(indent(2) + "}\n") # pass
f.write(indent(1) + "}\n") # technique
return
def writeVertexColours(self, f):
# preconditions: VCOL_PAINT set
#
# ambient = Amb*White resp. Amb*VCol if "Coloured Ambient"
# diffuse = Ref*VCol
# specular = Spec*SpeRGB, Hard/4.0
# emissive = Emit*VCol
# alpha = A
#
# Best match without vertex shader:
# ambient = Amb*white
# diffuse = Ref*VCol
# specular = Spec*SpeRGB, Hard/4.0
# emissive = black
# alpha = 1
#
self.writeReceiveShadows(f, 1)
f.write(indent(1) + "technique\n" + indent(1) + "{\n")
if (self.material.mode & Blender.Material.Modes['SHADELESS']):
f.write(indent(2) + "pass\n" + indent(2) + "{\n")
self.writeCommonOptions(f,3)
f.write(indent(2) + "}\n")
else:
# vertex colour pass
f.write(indent(2) + "pass\n" + indent(2) + "{\n")
f.write(indent(3) + "ambient 0.0 0.0 0.0\n")
f.write(indent(3) + "diffuse vertexcolour\n")
self.writeCommonOptions(f, 3)
f.write(indent(2) + "}\n") # vertex colour pass
# factor pass
f.write(indent(2) + "pass\n" + indent(2) + "{\n")
f.write(indent(3) + "ambient 0.0 0.0 0.0\n")
ref = self.material.getRef()
f.write(indent(3) + "diffuse %f %f %f\n" % (ref, ref, ref))
f.write(indent(3) + "scene_blend modulate\n")
self.writeCommonOptions(f, 3)
f.write(indent(2) + "}\n") # factor pass
# ambient and specular pass
f.write(indent(2) + "pass\n" + indent(2) + "{\n")
self.writeAmbient(f, [1.0, 1.0, 1.0], 3)
f.write(indent(3) + "diffuse 0.0 0.0 0.0\n")
self.writeSpecular(f, 3)
f.write(indent(3) + "scene_blend add\n")
self.writeCommonOptions(f, 3)
f.write(indent(2) + "}\n") # specular pass
f.write(indent(1) + "}\n") # technique
return
def writeNormalMap(self, f):
# preconditions COL and NOR textures
colImage = self.manager.registerTextureFile(self.mTexUVCol.tex.image.filename)
norImage = self.manager.registerTextureFile(self.mTexUVNor.tex.image.filename)
f.write(""" technique
{
pass
{
ambient 1 1 1
diffuse 0 0 0
specular 0 0 0 0
vertex_program_ref Ogre/BasicVertexPrograms/AmbientOneTexture
{
param_named_auto worldViewProj worldviewproj_matrix
param_named_auto ambient ambient_light_colour
}
}
pass
{
ambient 0 0 0
iteration once_per_light
scene_blend add
vertex_program_ref Examples/BumpMapVPSpecular
{
param_named_auto lightPosition light_position_object_space 0
param_named_auto eyePosition camera_position_object_space
param_named_auto worldViewProj worldviewproj_matrix
}
fragment_program_ref Examples/BumpMapFPSpecular
{
param_named_auto lightDiffuse light_diffuse_colour 0
param_named_auto lightSpecular light_specular_colour 0
}
texture_unit
{
texture %s
colour_op replace
}
texture_unit
{
cubic_texture nm.png combinedUVW
tex_coord_set 1
tex_address_mode clamp
}
texture_unit
{
cubic_texture nm.png combinedUVW
tex_coord_set 2
tex_address_mode clamp
}
}
pass
{
lighting off
vertex_program_ref Ogre/BasicVertexPrograms/AmbientOneTexture
{
param_named_auto worldViewProj worldviewproj_matrix
param_named ambient float4 1 1 1 1
}
scene_blend dest_colour zero
texture_unit
{
texture %s
}
}
}
technique
{
pass
{
ambient 1 1 1
diffuse 0 0 0
specular 0 0 0 0
vertex_program_ref Ogre/BasicVertexPrograms/AmbientOneTexture
{
param_named_auto worldViewProj worldviewproj_matrix
param_named_auto ambient ambient_light_colour
}
}
pass
{
ambient 0 0 0
iteration once_per_light
scene_blend add
vertex_program_ref Examples/BumpMapVP
{
param_named_auto lightPosition light_position_object_space 0
param_named_auto eyePosition camera_position_object_space
param_named_auto worldViewProj worldviewproj_matrix
}
texture_unit
{
texture %s
colour_op replace
}
texture_unit
{
cubic_texture nm.png combinedUVW
tex_coord_set 1
tex_address_mode clamp
colour_op_ex dotproduct src_texture src_current
colour_op_multipass_fallback dest_colour zero
}
}
pass
{
lighting off
vertex_program_ref Ogre/BasicVertexPrograms/AmbientOneTexture
{
param_named_auto worldViewProj worldviewproj_matrix
param_named ambient float4 1 1 1 1
}
scene_blend dest_colour zero
texture_unit
{
texture %s
}
}
}
""" % (norImage, colImage, norImage, colImage))
return
def writeReceiveShadows(self, f, indentation=0):
if (self.material.mode & Blender.Material.Modes["SHADOW"]):
f.write(indent(indentation)+"receive_shadows on\n")
else:
f.write(indent(indentation)+"receive_shadows off\n")
return
def writeAmbient(self, f, col, indentation=0):
# ambient <- amb * ambient RGB
ambR = clamp(self.material.getAmb() * col[0])
ambG = clamp(self.material.getAmb() * col[1])
ambB = clamp(self.material.getAmb() * col[2])
if len(col) < 4:
alpha = self.material.getAlpha()
else:
alpha = col[3]
f.write(indent(indentation)+"ambient %f %f %f %f\n" % (ambR, ambG, ambB, alpha))
return
def writeDiffuse(self, f, col, indentation=0):
# diffuse = reflectivity*colour
diffR = clamp(col[0] * self.material.getRef())
diffG = clamp(col[1] * self.material.getRef())
diffB = clamp(col[2] * self.material.getRef())
if len(col) < 4:
alpha = self.material.getAlpha()
else:
alpha = col[3]
f.write(indent(indentation)+"diffuse %f %f %f %f\n" % (diffR, diffG, diffB, alpha))
return
def writeSpecular(self, f, indentation=0):
# specular <- spec * specCol, hard/4.0
specR = clamp(self.material.getSpec() * self.material.getSpecCol()[0])
specG = clamp(self.material.getSpec() * self.material.getSpecCol()[1])
specB = clamp(self.material.getSpec() * self.material.getSpecCol()[2])
specShine = self.material.getHardness()/4.0
alpha = self.material.getAlpha()
f.write(indent(indentation)+"specular %f %f %f %f %f\n" % (specR, specG, specB, alpha, specShine))
return
def writeEmissive(self, f, col, indentation=0):
# emissive <-emit * rgbCol
emR = clamp(self.material.getEmit() * col[0])
emG = clamp(self.material.getEmit() * col[1])
emB = clamp(self.material.getEmit() * col[2])
if len(col) < 4:
alpha = self.material.getAlpha()
else:
alpha = col[3]
f.write(indent(indentation)+"emissive %f %f %f %f\n" % (emR, emG, emB, alpha))
return
def writeSceneBlend(self, f, indentation=0):
hasAlpha = 0
if (self.material.getAlpha() < 1.0):
hasAlpha = 1
else:
for mtex in self.material.getTextures():
if mtex:
if ((mtex.tex.type == Blender.Texture.Types['IMAGE'])
and (mtex.mapto & Blender.Texture.MapTo['ALPHA'])):
hasAlpha = 1
if (hasAlpha):
f.write(indent(indentation) + "scene_blend alpha_blend\n")
f.write(indent(indentation) + "depth_write off\n")
return
def writeCommonOptions(self, f, indentation=0):
# Shadeless, ZInvert, NoMist, Env
# depth_func <- ZINVERT; ENV
if (self.material.mode & Blender.Material.Modes['ENV']):
f.write(indent(indentation)+"depth_func always_fail\n")
elif (self.material.mode & Blender.Material.Modes['ZINVERT']):
f.write(indent(indentation)+"depth_func greater_equal\n")
# twoside
if self.mesh.faceUV and (self.face.mode & Blender.NMesh.FaceModes['TWOSIDE']):
f.write(indent(3) + "cull_hardware none\n")
f.write(indent(3) + "cull_software none\n")
# lighting <- SHADELESS
if (self.material.mode & Blender.Material.Modes['SHADELESS']):
f.write(indent(indentation)+"lighting off\n")
# fog_override <- NOMIST
if (self.material.mode & Blender.Material.Modes['NOMIST']):
f.write(indent(indentation)+"fog_override true\n")
return
def writeDiffuseTexture(self, f, indentation = 0):
if self.mTexUVCol:
f.write(indent(indentation)+"texture_unit\n")
f.write(indent(indentation)+"{\n")
f.write(indent(indentation + 1) + "texture %s\n" % self.manager.registerTextureFile(self.mTexUVCol.tex.getImage().getFilename()))
self.writeTextureAddressMode(f, self.mTexUVCol, indentation + 1)
self.writeTextureFiltering(f, self.mTexUVCol, indentation + 1)
self.writeTextureColourOp(f, self.mTexUVCol, indentation + 1)
f.write(indent(indentation)+"}\n") # texture_unit
return
def writeTextureAddressMode(self, f, blenderMTex, indentation = 0):
# tex_address_mode inside texture_unit
#
# EXTEND | clamp
# CLIP |
# CLIPCUBE |
# REPEAT | wrap
#
if (blenderMTex.tex.extend & Blender.Texture.ExtendModes['REPEAT']):
f.write(indent(indentation) + "tex_address_mode wrap\n")
elif (blenderMTex.tex.extend & Blender.Texture.ExtendModes['EXTEND']):
f.write(indent(indentation) + "tex_address_mode clamp\n")
return
def writeTextureFiltering(self, f, blenderMTex, indentation = 0):
# filtering inside texture_unit
#
# InterPol | MidMap | filtering
# ---------+--------+----------
# yes | yes | trilinear
# yes | no | linear linear none
# no | yes | bilinear
# no | no | none
#
if (blenderMTex.tex.imageFlags & Blender.Texture.ImageFlags['INTERPOL']):
if (blenderMTex.tex.imageFlags & Blender.Texture.ImageFlags['MIPMAP']):
f.write(indent(indentation) + "filtering trilinear\n")
else:
f.write(indent(indentation) + "filtering linear linear none\n")
else:
if (blenderMTex.tex.imageFlags & Blender.Texture.ImageFlags['MIPMAP']):
f.write(indent(indentation) + "filtering bilinear\n")
else:
f.write(indent(indentation) + "filtering none\n")
return
def writeTextureColourOp(self, f, blenderMTex, indentation = 0):
# colour_op inside texture_unit
if ((blenderMTex.tex.imageFlags & Blender.Texture.ImageFlags['USEALPHA'])
and not(blenderMTex.mapto & Blender.Texture.MapTo['ALPHA'])):
f.write(indent(indentation) + "colour_op alpha_blend\n")
return
# private
def _createName(self):
# must be called after _generateKey()
materialName = self.material.getName()
# two sided?
if self.mesh.faceUV and (self.face.mode & Blender.NMesh.FaceModes['TWOSIDE']):
materialName += '/TWOSIDE'
# use UV/Image Editor texture?
if ((self.key & self.TEXFACE) and not(self.key & self.IMAGEUVCOL)):
materialName += '/TEXFACE'
if self.face.image:
materialName += '/' + PathName(self.face.image.filename).basename()
return materialName
def _generateKey(self):
# generates key and populates mTex fields
if self.material:
if not(self.material.mode & Blender.Material.Modes['HALO']):
self.key |= self.NONHALO
if (self.material.mode & Blender.Material.Modes['VCOL_LIGHT']):
self.key |= self.VCOLLIGHT
if (self.material.mode & Blender.Material.Modes['VCOL_PAINT']):
self.key |= self.VCOLPAINT
if (self.material.mode & Blender.Material.Modes['TEXFACE']):
self.key |= self.TEXFACE
# textures
for mtex in self.material.getTextures():
if mtex:
if (mtex.tex.type == Blender.Texture.Types['IMAGE']):
if (mtex.texco & Blender.Texture.TexCo['UV']):
if (mtex.mapto & Blender.Texture.MapTo['COL']):
self.key |= self.IMAGEUVCOL
self.mTexUVCol = mtex
if (mtex.mapto & Blender.Texture.MapTo['NOR']):
# Check "Normal Map" image option
if (mtex.tex.imageFlags & 2048):
self.key |= self.IMAGEUVNOR
self.mTexUVNor = mtex
# else bumpmap
if (mtex.mapto & Blender.Texture.MapTo['CSP']):
self.key |= self.IMAGEUVCSP
self.mTexUVCsp = mtex
return
NONHALO = 1
VCOLLIGHT = 2
VCOLPAINT = 4
TEXFACE = 8
IMAGEUVCOL = 16
IMAGEUVNOR = 32
IMAGEUVCSP = 64
# material techniques export methods
TECHNIQUES = {
NONHALO|IMAGEUVCOL : writeColours,
NONHALO|IMAGEUVCOL|IMAGEUVCSP : writeColours,
NONHALO|TEXFACE : writeTexFace,
NONHALO|TEXFACE|VCOLLIGHT : writeTexFace,
NONHALO|TEXFACE|IMAGEUVCOL : writeTexFace,
NONHALO|TEXFACE|IMAGEUVNOR : writeTexFace,
NONHALO|TEXFACE|IMAGEUVCSP : writeTexFace,
NONHALO|TEXFACE|VCOLLIGHT|IMAGEUVCOL : writeTexFace,
NONHALO|TEXFACE|VCOLLIGHT|IMAGEUVNOR : writeTexFace,
NONHALO|TEXFACE|VCOLLIGHT|IMAGEUVCSP : writeTexFace,
NONHALO|TEXFACE|IMAGEUVCOL|IMAGEUVCSP : writeTexFace,
NONHALO|TEXFACE|IMAGEUVNOR|IMAGEUVCSP : writeTexFace,
NONHALO|TEXFACE|VCOLLIGHT|IMAGEUVCOL|IMAGEUVCSP : writeTexFace,
NONHALO|TEXFACE|VCOLLIGHT|IMAGEUVNOR|IMAGEUVCSP : writeTexFace,
NONHALO|VCOLPAINT : writeVertexColours,
NONHALO|VCOLPAINT|VCOLLIGHT : writeVertexColours,
NONHALO|IMAGEUVCOL|IMAGEUVNOR : writeNormalMap,
NONHALO|IMAGEUVCOL|IMAGEUVNOR|VCOLLIGHT : writeNormalMap,
NONHALO|IMAGEUVCOL|IMAGEUVNOR|VCOLPAINT : writeNormalMap,
NONHALO|IMAGEUVCOL|IMAGEUVNOR|TEXFACE : writeNormalMap,
NONHALO|IMAGEUVCOL|IMAGEUVNOR|IMAGEUVCSP : writeNormalMap,
NONHALO|IMAGEUVCOL|IMAGEUVNOR|VCOLLIGHT|VCOLPAINT : writeNormalMap,
NONHALO|IMAGEUVCOL|IMAGEUVNOR|VCOLLIGHT|TEXFACE : writeNormalMap,
NONHALO|IMAGEUVCOL|IMAGEUVNOR|VCOLLIGHT|IMAGEUVCSP : writeNormalMap,
NONHALO|IMAGEUVCOL|IMAGEUVNOR|VCOLPAINT|TEXFACE : writeNormalMap,
NONHALO|IMAGEUVCOL|IMAGEUVNOR|VCOLPAINT|IMAGEUVCSP : writeNormalMap,
NONHALO|IMAGEUVCOL|IMAGEUVNOR|TEXFACE|IMAGEUVCSP : writeNormalMap,
NONHALO|IMAGEUVCOL|IMAGEUVNOR|VCOLPAINT|TEXFACE|IMAGEUVCSP : writeNormalMap,
NONHALO|IMAGEUVCOL|IMAGEUVNOR|VCOLLIGHT|TEXFACE|IMAGEUVCSP : writeNormalMap,
NONHALO|IMAGEUVCOL|IMAGEUVNOR|VCOLLIGHT|VCOLPAINT|IMAGEUVCSP : writeNormalMap,
NONHALO|IMAGEUVCOL|IMAGEUVNOR|VCOLLIGHT|VCOLPAINT|TEXFACE : writeNormalMap,
NONHALO|IMAGEUVCOL|IMAGEUVNOR|VCOLLIGHT|VCOLPAINT|TEXFACE|IMAGEUVCSP : writeNormalMap
}
class CustomMaterial(RenderingMaterial):
def __init__(self, manager, blenderMesh, blenderFace, colouredAmbient, customMaterialTemplate):
self.mesh = blenderMesh
self.face = blenderFace
self.colouredAmbient = colouredAmbient
self.customMaterialTemplate = customMaterialTemplate
self.key = 0
self.mTexUVCol = None
self.mTexUVNor = None
self.mTexUVCsp = None
self.material = None
self.template = None
try:
self.material = self.mesh.materials[self.face.mat]
except IndexError:
Log.getSingleton().logWarning("Can't get material for mesh \"%s\"! Are any materials linked to object instead of linked to mesh?" % self.mesh.name)
if self.material:
self._generateKey()
DefaultMaterial.__init__(self, manager, self._createName())
else:
DefaultMaterial.__init__(self, manager, 'None')
self.properties = self.material.properties
return
class Template(string.Template):
delimiter = '%'
idpattern = '[_a-z][_a-z0-9.]*'
def setupTemplate(self, templateString):
self.template = self.Template(templateString)
return
def write(self, f):
# fallback if we don't have a valid template set.
if not(self.template):
RenderingMaterial.write(self, f)
return
# do alpha check for scene blend and depth write flag.
self.hasAlpha = 0
if (self.material.alpha < 1.0):
self.hasAlpha = 1
else:
for mtex in self.material.getTextures():
if mtex:
if ((mtex.tex.type == Blender.Texture.Types['IMAGE'])
and (mtex.mapto & Blender.Texture.MapTo['ALPHA'])):
self.hasAlpha = 1
# setup dictionary.
templateDict = { \
'_materialName' : self.name, \
'_ambient' : self._getAmbient(), \
'_diffuse' : self._getDiffuse(), \
'_specular' : self._getSpecular(), \
'_emisive' : self._getEmisive(), \
'_scene_blend' : self._getSceneBlend(), \
'_depth_write' : self._getDepthWrite(), \
'_depth_func' : self._getDepthFunc(), \
'_receive_shadows' : self._getReceiveShadows(), \
'_culling' : self._getCulling(), \
'_lighting' : self._getLighting(), \
'_fog_override' : self._getFogOverride()}
textureIndex = 0
for mtex in self.material.getTextures():
if mtex:
if (mtex.tex.type == Blender.Texture.Types['IMAGE']):
textureName = mtex.tex.getName()
name, ext = Blender.sys.splitext(textureName)
if ext.lstrip('.').isdigit() : textureName = name
# alternate texture index access
textureIndexName = '_tex[%d]' % textureIndex
++textureIndex
if mtex.tex.getImage():
textureFilename = self.manager.registerTextureFile(mtex.tex.getImage().getFilename())
templateDict[textureName + '._texture'] = textureFilename
templateDict[textureIndexName + '._texture'] = textureFilename
if mtex.tex.extend & Blender.Texture.ExtendModes['REPEAT']:
templateDict[textureName + '._tex_address_mode'] = 'wrap'
templateDict[textureIndexName + '._tex_address_mode'] = 'wrap'
else:
templateDict[textureName + '._tex_address_mode'] = 'clamp'
templateDict[textureIndexName + '._tex_address_mode'] = 'clamp'
if (mtex.tex.imageFlags & Blender.Texture.ImageFlags['INTERPOL']):
if (mtex.tex.imageFlags & Blender.Texture.ImageFlags['MIPMAP']):
templateDict[textureName + '._filtering'] = 'trilinear'
templateDict[textureIndexName + '._filtering'] = 'trilinear'
else:
templateDict[textureName + '._filtering'] = 'linear linear none'
templateDict[textureIndexName + '._filtering'] = 'linear linear none'
else:
if (mtex.tex.imageFlags & Blender.Texture.ImageFlags['MIPMAP']):
templateDict[textureName + '._filtering'] = 'bilinear'
templateDict[textureIndexName + '._filtering'] = 'bilinear'
else:
templateDict[textureName + '._filtering'] = 'none'
templateDict[textureIndexName + '._filtering'] = 'none'
if ((mtex.tex.imageFlags & Blender.Texture.ImageFlags['USEALPHA'])
and not(mtex.mapto & Blender.Texture.MapTo['ALPHA'])):
templateDict[textureName + '._colour_op'] = 'alpha_blend'
templateDict[textureIndexName + '._colour_op'] = 'alpha_blend'
else:
templateDict[textureName + '._colour_op'] = 'modulate'
templateDict[textureIndexName + '._colour_op'] = 'modulate'
templateDict[textureName + '._sizeX'] = "%.6g" % mtex.size[0]
templateDict[textureIndexName + '._sizeX'] = "%.6g" % mtex.size[0]
templateDict[textureName + '._sizeY'] = "%.6g" % mtex.size[1]
templateDict[textureIndexName + '._sizeY'] = "%.6g" % mtex.size[1]
templateDict[textureName + '._sizeZ'] = "%.6g" % mtex.size[2]
templateDict[textureIndexName + '._sizeZ'] = "%.6g" % mtex.size[2]
templateDict[textureName + '._offsetX'] = "%.6g" % mtex.ofs[0]
templateDict[textureIndexName + '._offsetX'] = "%.6g" % mtex.ofs[0]
templateDict[textureName + '._offsetY'] = "%.6g" % mtex.ofs[1]
templateDict[textureIndexName + '._offsetY'] = "%.6g" % mtex.ofs[1]
templateDict[textureName + '._offsetZ'] = "%.6g" % mtex.ofs[2]
templateDict[textureIndexName + '._offsetZ'] = "%.6g" % mtex.ofs[2]
try:
propertyGroup = self.material.properties['properties']
self._parseProperties(templateDict, propertyGroup)
except KeyError:
pass
f.write(self.template.safe_substitute(templateDict))
return
def _getAmbient(self):
if self.colouredAmbient:
amb = self.material.amb
ambR = clamp(self.material.R * amb)
ambG = clamp(self.material.G * amb)
ambB = clamp(self.material.B * amb)
return "%.6g %.6g %.6g" % (ambR, ambG, ambB)
amb = self.material.amb
return "%.6g %.6g %.6g" % (amb, amb, amb)
def _getDiffuse(self):
return "%.6g %.6g %.6g %.6g" % (self.material.R, self.material.G, self.material.B, self.material.alpha)
def _getSpecular(self):
spec = self.material.spec
specR = clamp(self.material.specR * spec)
specG = clamp(self.material.specG * spec)
specB = clamp(self.material.specB * spec)
shininess = self.material.getHardness() / 4.0
return "%.6g %.6g %.6g %.6g" % (specR, specG, specB, shininess)
def _getEmisive(self):
emit = self.material.emit
emitR = clamp(self.material.R * emit)
emitG = clamp(self.material.G * emit)
emitB = clamp(self.material.B * emit)
return "%.6g %.6g %.6g" % (emitR, emitG, emitB)
def _getSceneBlend(self):
if (self.hasAlpha):
return 'alpha_blend'
return 'one zero'
def _getDepthWrite(self):
if (self.hasAlpha):
return 'off'
return 'on'
def _getDepthFunc(self):
if (self.material.mode & Blender.Material.Modes['ENV']):
return 'always_fail'
elif (self.material.mode & Blender.Material.Modes['ZINVERT']):
return 'greater_equal'
return 'less_equal'
def _getReceiveShadows(self):
if (self.material.mode & Blender.Material.Modes["SHADOW"]):
return 'on'
return 'off'
def _getCulling(self):
if self.mesh.faceUV and (self.face.mode & Blender.Mesh.FaceModes['TWOSIDE']):
return 'none'
return 'clockwise'
def _getLighting(self):
if (self.material.mode & Blender.Material.Modes['SHADELESS']):
return 'off'
return 'on'
def _getFogOverride(self):
if (self.material.mode & Blender.Material.Modes['NOMIST']):
return 'true'
return 'false'
def _parseProperties(self, templateDict, propertyGroup, parent=None):
if type(propertyGroup) is Blender.Types.IDGroupType:
for propName, propValue in propertyGroup.iteritems():
if parent : propName = parent + '.' + propName
propType = type(propValue)
if propType is Blender.Types.IDArrayType:
arraySize = propValue.__len__()
propValueString = "%.6g" % propValue.__getitem__(0)
i = 1
while i < arraySize:
propValueString += " %.6g" % propValue.__getitem__(i)
i += 1
templateDict[propName] = propValueString
elif propType is Blender.Types.IDGroupType:
self._parseProperties(templateDict, propValue, propName)
elif propType is float:
templateDict[propName] = "%.6g" % propValue
else:
templateDict[propName] = propValue
return
class MaterialManager:
"""Manages database of material definitions.
"""
#TODO append to existing material script
def __init__(self, dir=None, file=None, gameEngineMaterial=False, customMaterial=False, customMaterialTplPath=None, requireFaceMats=True):
"""Constructor.
@param path Directory to the material file. Default is directory of the last file read or written with Blender.
@param file Material script file. Default is current scene name with ".material" prefix.
"""
self.dir = dir or Blender.sys.dirname(Blender.Get('filename'))
self.file = file or (Blender.Scene.GetCurrent().getName() + ".material")
self.gameEngineMaterial = gameEngineMaterial
self.customMaterial = customMaterial
self.customMaterialTplPath = customMaterialTplPath
# key=name, value=material
self.materialsDict = {}
# key=basename, value=path
self.textureFilesDict = {}
if requireFaceMats:
self.noMatWarned = set()
# We only warn once for each blender Obj X mesh
# This set keeps track of what we have issued warnings for already
else:
self.noMatWarned = None
return
def getMaterial(self, bMesh, bMFace, colouredAmbient, objName):
"""Returns material of a given face or <code>None</code>.
"""
## get name of export material for Blender's material settings of that face.
# The objName param provides for precise and optimally concise
# error messages
faceMaterial = None
if self.gameEngineMaterial:
if bMesh.faceUV and not(bMFace.mode & Blender.Mesh.FaceModes['INVISIBLE']):
if (bMFace.image and (bMFace.mode & Blender.Mesh.FaceModes['TEX'])):
# image texture
faceMaterial = GameEngineMaterial(self, bMesh, bMFace, colouredAmbient)
else:
# material only
if (bMesh.materials == None
or bMFace.mat >= len(bMesh.materials)
or not bMesh.materials[bMFace.mat]):
if self.noMatWarned != None and (
objName + '|' + bMesh.name) not in self.noMatWarned:
Log.getSingleton().logError(('Face(s) without eng. '
+ 'material assignment in obj "%s", mesh "%s"!')
% (objName, bMesh.name))
self.noMatWarned.add(objName + '|' + bMesh.name)
faceMaterial = DefaultMaterial(self, 'BaseWhite')
else:
faceMaterial = GameEngineMaterial(self, bMesh, bMFace, colouredAmbient)
elif self.customMaterial:
if (bMesh.materials == None or bMFace.mat >= len(bMesh.materials)
or not bMesh.materials[bMFace.mat]):
if self.noMatWarned != None and (
objName + '|' + bMesh.name) not in self.noMatWarned:
Log.getSingleton().logError(('Face(s) without custom '
+ 'material assignment in obj "%s", mesh "%s"!')
% (objName, bMesh.name))
self.noMatWarned.add(objName + '|' + bMesh.name)
faceMaterial = DefaultMaterial(self, 'BaseWhite')
else:
faceMaterial = CustomMaterial(self, bMesh, bMFace, colouredAmbient, self.customMaterialTplPath)
else:
# rendering material
if (bMesh.materials == None or bMFace.mat >= len(bMesh.materials)
or not bMesh.materials[bMFace.mat]):
if self.noMatWarned != None and (
objName + '|' + bMesh.name) not in self.noMatWarned:
Log.getSingleton().logError(('Face(s) without '
+ 'material assignment in obj "%s", mesh "%s"!')
% (objName, bMesh.name))
self.noMatWarned.add(objName + '|' + bMesh.name)
faceMaterial = DefaultMaterial(self, 'BaseWhite')
else:
faceMaterial = RenderingMaterial(self, bMesh, bMFace, colouredAmbient)
## return material or None
material = None
if faceMaterial:
if not(self.materialsDict.has_key(faceMaterial.getName())):
self.materialsDict[faceMaterial.getName()] = faceMaterial
material = self.materialsDict[faceMaterial.getName()]
return material
def registerTextureFile(self, path):
"""Register texture for export.
@param path Texture file path, i.e. dirname and basename.
@return Basename of texture file.
"""
texturePath = PathName(path)
key = texturePath.basename()
if self.textureFilesDict.has_key(key):
if (path != self.textureFilesDict[key]):
Log.getSingleton().logWarning('Texture filename conflict: \"%s\"' % key)
Log.getSingleton().logWarning(' Location: \"%s\"' % path)
Log.getSingleton().logWarning(' Conflicting location: \"%s\"' % self.textureFilesDict[key])
self.textureFilesDict[key] = path
return key
def export(self, dir=None, file=None, copyTextures=False):
exportDir = dir or self.dir
exportFile = file or self.file
Log.getSingleton().logInfo("Exporting materials \"%s\"" % exportFile)
f = open(Blender.sys.join(exportDir, exportFile), "w")
if self.customMaterial :
# set of material import lines.
templateImportSet = set()
# map of template strings.
templateStringDict = {}
for material in self.materialsDict.values():
if isinstance(material, CustomMaterial):
try:
template = material.properties['template']
if type(template) is not str:
Log.getSingleton().logWarning("==========================================================")
Log.getSingleton().logWarning("Material \"%s\" not assigned to a valid template!" % material.getName())
Log.getSingleton().logWarning("Falling back to Rendering Material mode for this material.")
else:
if not(templateStringDict.has_key(template)) :
Log.getSingleton().logInfo("Loading template \"%s\"" % template)
templateFile = Blender.sys.join(self.customMaterialTplPath, template + '.tpl')
if not(Blender.sys.exists(templateFile) == 1):
Log.getSingleton().logWarning("==========================================================")
Log.getSingleton().logWarning("Material \"%s\" assigned to unknown template \"%s\"!" % (material.getName(), template))
Log.getSingleton().logWarning("The template file \"%s\" does not exist." % templateFile)
Log.getSingleton().logWarning("Falling back to Rendering Material mode for this material.")
templateStringDict[template] = None
else:
t = open(templateFile, 'r')
templateImportSet.add(t.readline())
templateStringDict[template] = t.read()
t.close()
if (templateStringDict[template]):
material.setupTemplate(templateStringDict[template])
except KeyError:
Log.getSingleton().logWarning("==========================================================")
Log.getSingleton().logWarning("Material \"%s\" is not assigned to a template!" % (material.getName()))
Log.getSingleton().logWarning("Falling back to Rendering Material mode for this material.")
# write import lines.
for importString in templateImportSet:
f.write(importString)
Log.getSingleton().logInfo("Begin writing materials:")
for material in self.materialsDict.values():
Log.getSingleton().logInfo(" %s" % (material.getName()))
material.write(f)
f.close()
if copyTextures and os.path.exists(dir):
baseDirname = os.path.dirname(Blender.Get("filename"))
for path in self.textureFilesDict.values():
# convert Blender's relative paths "//" to absolute path
if (path[0:2] == "//"):
Log.getSingleton().logInfo("Converting relative image name \"%s\"" % path)
path = os.path.join(baseDirname, path[2:])
if os.path.exists(path):
# copy texture to dir
Log.getSingleton().logInfo("Copying texture \"%s\"" % path)
try:
shutil.copy(path, dir)
except (IOError, OSError), detail:
Log.getSingleton().logError("Error copying \"%s\": %s" % (path, str(detail)))
else:
Log.getSingleton().logWarning("Can't copy texture \"%s\" because file does not exists!" % path)
return
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