io_scene_3ds: Moved specular color texture to specular tint #104918
@ -551,20 +551,33 @@ def make_percent_subchunk(chunk_id, percent):
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return pct_sub
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return pct_sub
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def make_texture_chunk(chunk_id, images, pct):
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def make_texture_chunk(chunk_id, teximages, pct):
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"""Make Material Map texture chunk."""
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"""Make Material Map texture chunk."""
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# Add texture percentage value (100 = 1.0)
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# Add texture percentage value (100 = 1.0)
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mat_sub = make_percent_subchunk(chunk_id, pct)
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mat_sub = make_percent_subchunk(chunk_id, pct)
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has_entry = False
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has_entry = False
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def add_image(img):
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def add_image(img, extension):
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filename = bpy.path.basename(image.filepath)
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filename = bpy.path.basename(image.filepath)
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mat_sub_file = _3ds_chunk(MAT_MAP_FILE)
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mat_sub_file = _3ds_chunk(MAT_MAP_FILE)
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mat_sub_tiling = _3ds_chunk(MAP_TILING)
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mat_sub_file.add_variable("image", _3ds_string(sane_name(filename)))
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mat_sub_file.add_variable("image", _3ds_string(sane_name(filename)))
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mat_sub.add_subchunk(mat_sub_file)
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mat_sub.add_subchunk(mat_sub_file)
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for image in images:
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tiling = 0
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add_image(image)
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if extension == 'EXTEND': # decal flag
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tiling |= 0x1
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if extension == 'MIRROR': # mirror flag
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tiling |= 0x2
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if extension == 'CLIP': # no wrap
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tiling |= 0x10
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mat_sub_tiling.add_variable("tiling", _3ds_ushort(tiling))
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mat_sub.add_subchunk(mat_sub_tiling)
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for tex in teximages:
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extend = tex.extension
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add_image(tex.image, extend)
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has_entry = True
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has_entry = True
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return mat_sub if has_entry else None
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return mat_sub if has_entry else None
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@ -748,17 +761,22 @@ def make_material_chunk(material, image):
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# Make sure no textures are lost. Everything that doesn't fit
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# Make sure no textures are lost. Everything that doesn't fit
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# into a channel is exported as secondary texture
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# into a channel is exported as secondary texture
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diffuse = []
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matmap = False
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matmap = False
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mtype = 'MIX', 'MIX_RGB'
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lks = material.node_tree.links
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lks = material.node_tree.links
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pct = next((lk.from_node.inputs[0].default_value for lk in lks if lk.from_node.type in {'MIX', 'MIX_RGB'} and lk.to_node.type == 'BSDF_PRINCIPLED'), 0.5)
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pct = next((lk.from_node.inputs[0].default_value for lk in lks if lk.from_node.type in mtype and lk.to_node.type == 'BSDF_PRINCIPLED'), 0.5)
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for link in mtlks:
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for link in mtlks:
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mix_primary = link.from_node.image if link.from_node.type == 'TEX_IMAGE' and link.to_socket.identifier in {'Color2', 'B_Color'} else False
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mix_primary = link.from_node if link.from_node.type == 'TEX_IMAGE' and link.to_node.type in mtype else False
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mix_secondary = link.from_node.image if link.from_node.type == 'TEX_IMAGE' and link.to_socket.identifier in {'Color1', 'A_Color'} else False
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mix_secondary = link.from_node if link.from_node.type == 'TEX_IMAGE' and link.to_socket.identifier in {'Color1', 'A_Color'} else False
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if mix_secondary:
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if mix_secondary:
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matmap = make_uv_texture_chunk(MAT_TEXMAP, [mix_secondary], pct)
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matmap = make_uv_texture_chunk(MAT_TEXMAP, [mix_secondary], pct)
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elif not primary_tex and mix_primary:
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elif mix_primary:
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material_chunk.add_subchunk(make_uv_texture_chunk(MAT_DIFFUSEMAP, [mix_primary], pct))
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diffuse.append(mix_primary)
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if matmap:
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if diffuse:
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material_chunk.add_subchunk(make_uv_texture_chunk(MAT_DIFFUSEMAP, diffuse, pct))
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primary_tex = True
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if primary_tex and matmap:
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material_chunk.add_subchunk(matmap)
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material_chunk.add_subchunk(matmap)
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else:
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else:
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