Merge branch 'master' into master

pull/1683/head
Christian Meurin 2018-01-12 13:14:05 -08:00 committed by GitHub
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4 changed files with 155 additions and 49 deletions

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@ -43,7 +43,7 @@ __Importers__:
- AMJ - AMJ
- ASE - ASE
- ASK - ASK
- B3D; - B3D
- BLEND (Blender) - BLEND (Blender)
- BVH - BVH
- COB - COB

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@ -561,17 +561,27 @@ The output UV coordinate system has its origin in the lower-left corner:
@endcode @endcode
Use the #aiProcess_FlipUVs flag to get UV coordinates with the upper-left corner als origin. Use the #aiProcess_FlipUVs flag to get UV coordinates with the upper-left corner als origin.
All matrices in the library are row-major. That means that the matrices are stored row by row in memory, A typical 4x4 matrix including a translational part looks like this:
which is similar to the OpenGL matrix layout. A typical 4x4 matrix including a translational part looks like this:
@code @code
X1 Y1 Z1 T1 X1 Y1 Z1 T1
X2 Y2 Z2 T2 X2 Y2 Z2 T2
X3 Y3 Z3 T3 X3 Y3 Z3 T3
0 0 0 1 0 0 0 1
@endcode @endcode
with (X1, X2, X3) being the X base vector, (Y1, Y2, Y3) being the Y base vector, (Z1, Z2, Z3) with <tt>(X1, X2, X3)</tt> being the local X base vector, <tt>(Y1, Y2, Y3)</tt> being the local
being the Z base vector and (T1, T2, T3) being the translation part. If you want to use these matrices Y base vector, <tt>(Z1, Z2, Z3)</tt> being the local Z base vector and <tt>(T1, T2, T3)</tt> being the
in DirectX functions, you have to transpose them. offset of the local origin (the translational part).
All matrices in the library use row-major storage order. That means that the matrix elements are
stored row-by-row, i.e. they end up like this in memory:
<tt>[X1, Y1, Z1, T1, X2, Y2, Z2, T2, X3, Y3, Z3, T3, 0, 0, 0, 1]</tt>.
Note that this is neither the OpenGL format nor the DirectX format, because both of them specify the
matrix layout such that the translational part occupies three consecutive addresses in memory (so those
matrices end with <tt>[..., T1, T2, T3, 1]</tt>), whereas the translation in an Assimp matrix is found at
the offsets 3, 7 and 11 (spread across the matrix). You can transpose an Assimp matrix to end up with
the format that OpenGL and DirectX mandate. To be very precise: The transposition has nothing
to do with a left-handed or right-handed coordinate system but 'converts' between row-major and
column-major storage format.
<hr> <hr>

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@ -0,0 +1,96 @@
#!/usr/bin/env python
# -*- Coding: UTF-8 -*-
# ---------------------------------------------------------------------------
# Open Asset Import Library (ASSIMP)
# ---------------------------------------------------------------------------
#
# Copyright (c) 2006-2010, ASSIMP Development Team
#
# All rights reserved.
#
# Redistribution and use of this software in source and binary forms,
# with or without modification, are permitted provided that the following
# conditions are met:
#
# * Redistributions of source code must retain the above
# copyright notice, this list of conditions and the
# following disclaimer.
#
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the
# following disclaimer in the documentation and/or other
# materials provided with the distribution.
#
# * Neither the name of the ASSIMP team, nor the names of its
# contributors may be used to endorse or promote products
# derived from this software without specific prior
# written permission of the ASSIMP Development Team.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# ---------------------------------------------------------------------------
"""Update PyAssimp's texture type constants C/C++ headers.
This script is meant to be executed in the source tree, directly from
port/PyAssimp/gen
"""
import os
import re
REenumTextureType = re.compile(r''
r'enum\saiTextureType' # enum aiTextureType
r'[^{]*?\{' # {
r'(?P<code>.*?)' # code
r'\};' # };
, re.IGNORECASE + re.DOTALL + re.MULTILINE)
# Replace comments
RErpcom = re.compile(r''
r'\s*(/\*+\s|\*+/|\B\*\s?|///?!?)' # /**
r'(?P<line>.*?)' # * line
, re.IGNORECASE + re.DOTALL)
# Remove trailing commas
RErmtrailcom = re.compile(r',$', re.IGNORECASE + re.DOTALL)
# Remove #ifdef __cplusplus
RErmifdef = re.compile(r''
r'#ifndef SWIG' # #ifndef SWIG
r'(?P<code>.*)' # code
r'#endif(\s*//\s*!?\s*SWIG)*' # #endif
, re.IGNORECASE + re.DOTALL)
path = '../../../include/assimp'
files = os.listdir (path)
enumText = ''
for fileName in files:
if fileName.endswith('.h'):
text = open(os.path.join(path, fileName)).read()
for enum in REenumTextureType.findall(text):
enumText = enum
text = ''
for line in enumText.split('\n'):
line = line.lstrip().rstrip()
line = RErmtrailcom.sub('', line)
text += RErpcom.sub('# \g<line>', line) + '\n'
text = RErmifdef.sub('', text)
file = open('material.py', 'w')
file.write(text)
file.close()
print("Generation done. You can now review the file 'material.py' and merge it.")

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@ -1,89 +1,89 @@
## <hr>Dummy value. # Dummy value.
# #
# No texture, but the value to be used as 'texture semantic' # No texture, but the value to be used as 'texture semantic'
# (#aiMaterialProperty::mSemantic) for all material properties # (#aiMaterialProperty::mSemantic) for all material properties
# *not* related to textures. # # not* related to textures.
# #
aiTextureType_NONE = 0x0 aiTextureType_NONE = 0x0
## <hr>The texture is combined with the result of the diffuse # The texture is combined with the result of the diffuse
# lighting equation. # lighting equation.
# #
aiTextureType_DIFFUSE = 0x1 aiTextureType_DIFFUSE = 0x1
## <hr>The texture is combined with the result of the specular # The texture is combined with the result of the specular
# lighting equation. # lighting equation.
# #
aiTextureType_SPECULAR = 0x2 aiTextureType_SPECULAR = 0x2
## <hr>The texture is combined with the result of the ambient # The texture is combined with the result of the ambient
# lighting equation. # lighting equation.
# #
aiTextureType_AMBIENT = 0x3 aiTextureType_AMBIENT = 0x3
## <hr>The texture is added to the result of the lighting # The texture is added to the result of the lighting
# calculation. It isn't influenced by incoming light. # calculation. It isn't influenced by incoming light.
# #
aiTextureType_EMISSIVE = 0x4 aiTextureType_EMISSIVE = 0x4
## <hr>The texture is a height map. # The texture is a height map.
# #
# By convention, higher gray-scale values stand for # By convention, higher gray-scale values stand for
# higher elevations from the base height. # higher elevations from the base height.
# #
aiTextureType_HEIGHT = 0x5 aiTextureType_HEIGHT = 0x5
## <hr>The texture is a (tangent space) normal-map. # The texture is a (tangent space) normal-map.
# #
# Again, there are several conventions for tangent-space # Again, there are several conventions for tangent-space
# normal maps. Assimp does (intentionally) not # normal maps. Assimp does (intentionally) not
# distinguish here. # distinguish here.
# #
aiTextureType_NORMALS = 0x6 aiTextureType_NORMALS = 0x6
## <hr>The texture defines the glossiness of the material. # The texture defines the glossiness of the material.
# #
# The glossiness is in fact the exponent of the specular # The glossiness is in fact the exponent of the specular
# (phong) lighting equation. Usually there is a conversion # (phong) lighting equation. Usually there is a conversion
# function defined to map the linear color values in the # function defined to map the linear color values in the
# texture to a suitable exponent. Have fun. # texture to a suitable exponent. Have fun.
# #
aiTextureType_SHININESS = 0x7 aiTextureType_SHININESS = 0x7
## <hr>The texture defines per-pixel opacity. # The texture defines per-pixel opacity.
# #
# Usually 'white' means opaque and 'black' means # Usually 'white' means opaque and 'black' means
# 'transparency'. Or quite the opposite. Have fun. # 'transparency'. Or quite the opposite. Have fun.
# #
aiTextureType_OPACITY = 0x8 aiTextureType_OPACITY = 0x8
## <hr>Displacement texture # Displacement texture
# #
# The exact purpose and format is application-dependent. # The exact purpose and format is application-dependent.
# Higher color values stand for higher vertex displacements. # Higher color values stand for higher vertex displacements.
# #
aiTextureType_DISPLACEMENT = 0x9 aiTextureType_DISPLACEMENT = 0x9
## <hr>Lightmap texture (aka Ambient Occlusion) # Lightmap texture (aka Ambient Occlusion)
# #
# Both 'Lightmaps' and dedicated 'ambient occlusion maps' are # Both 'Lightmaps' and dedicated 'ambient occlusion maps' are
# covered by this material property. The texture contains a # covered by this material property. The texture contains a
# scaling value for the final color value of a pixel. Its # scaling value for the final color value of a pixel. Its
# intensity is not affected by incoming light. # intensity is not affected by incoming light.
# #
aiTextureType_LIGHTMAP = 0xA aiTextureType_LIGHTMAP = 0xA
## <hr>Reflection texture # Reflection texture
# #
#Contains the color of a perfect mirror reflection. # Contains the color of a perfect mirror reflection.
#Rarely used, almost never for real-time applications. # Rarely used, almost never for real-time applications.
# #
aiTextureType_REFLECTION = 0xB aiTextureType_REFLECTION = 0xB
## <hr>Unknown texture # Unknown texture
# #
# A texture reference that does not match any of the definitions # A texture reference that does not match any of the definitions
# above is considered to be 'unknown'. It is still imported # above is considered to be 'unknown'. It is still imported
# but is excluded from any further postprocessing. # but is excluded from any further postprocessing.
# #
aiTextureType_UNKNOWN = 0xC aiTextureType_UNKNOWN = 0xC