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Diffstat (limited to 'src/mesh/assimp-master/port/dAssimp/assimp/light.d')
| -rw-r--r-- | src/mesh/assimp-master/port/dAssimp/assimp/light.d | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/src/mesh/assimp-master/port/dAssimp/assimp/light.d b/src/mesh/assimp-master/port/dAssimp/assimp/light.d new file mode 100644 index 0000000..0842d67 --- /dev/null +++ b/src/mesh/assimp-master/port/dAssimp/assimp/light.d @@ -0,0 +1,215 @@ +/* +--------------------------------------------------------------------------- +Open Asset Import Library (ASSIMP) +--------------------------------------------------------------------------- + +Copyright (c) 2006-2020, 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. +--------------------------------------------------------------------------- +*/ + +/** + * Contains the data structures which are used to store the imported information + * about the light sources in the scene. + */ +module assimp.light; + +import assimp.math; +import assimp.types; + +extern ( C ) { + /** + * Enumerates all supported types of light sources. + */ + enum aiLightSourceType : uint { + UNDEFINED = 0x0, + + /** + * A directional light source has a well-defined direction but is + * infinitely far away. That's quite a good approximation for sun light. + */ + DIRECTIONAL = 0x1, + + /** + * A point light source has a well-defined position in space but no + * direction – it emits light in all directions. A normal bulb is a point + * light. + */ + POINT = 0x2, + + /** + * A spot light source emits light in a specific angle. It has a position + * and a direction it is pointing to. A good example for a spot light is + * a light spot in sport arenas. + */ + SPOT = 0x3 + } + + /** + * Helper structure to describe a light source. + * + * Assimp supports multiple sorts of light sources, including directional, + * point and spot lights. All of them are defined with just a single + * structure and distinguished by their parameters. + * + * Note: Some file formats (such as 3DS, ASE) export a "target point" – the + * point a spot light is looking at (it can even be animated). Assimp + * writes the target point as a subnode of a spotlights's main node, called + * <code>[spotName].Target</code>. However, this is just additional + * information then, the transformation tracks of the main node make the + * spot light already point in the right direction. + */ + struct aiLight { + /** + * The name of the light source. + * + * There must be a node in the scenegraph with the same name. This node + * specifies the position of the light in the scenehierarchy and can be + * animated. + */ + aiString mName; + + /** + * The type of the light source. + * + * <code>aiLightSource.UNDEFINED</code> is not a valid value for this + * member. + */ + aiLightSourceType mType; + + /** + * Position of the light source in space. Relative to the transformation + * of the node corresponding to the light. + * + * The position is undefined for directional lights. + */ + aiVector3D mPosition; + + /** + * Direction of the light source in space. Relative to the transformation + * of the node corresponding to the light. + * + * The direction is undefined for point lights. The vector may be + * normalized, but it needn't. + */ + aiVector3D mDirection; + + /** + * Constant light attenuation factor. + * + * The intensity of the light source at a given distance + * <code>d</code> from the light's position is + * <code>1/( att0 + att1 * d + att2 * d * d )</code>. This member + * corresponds to the <code>att0</code> variable in the equation. + * + * Naturally undefined for directional lights. + */ + float mAttenuationConstant; + + /** + * Linear light attenuation factor. + * + * The intensity of the light source at a given distance + * <code>d</code> from the light's position is + * <code>1/( att0 + att1 * d + att2 * d * d )</code>. This member + * corresponds to the <code>att1</code> variable in the equation. + * + * Naturally undefined for directional lights. + */ + float mAttenuationLinear; + + /** + * Quadratic light attenuation factor. + * + * The intensity of the light source at a given distance + * <code>d</code> from the light's position is + * <code>1/( att0 + att1 * d + att2 * d * d )</code>. This member + * corresponds to the <code>att2</code> variable in the equation. + * + * Naturally undefined for directional lights. + */ + float mAttenuationQuadratic; + + /** + * Diffuse color of the light source + * + * The diffuse light color is multiplied with the diffuse material color + * to obtain the final color that contributes to the diffuse shading term. + */ + aiColor3D mColorDiffuse; + + /** + * Specular color of the light source + * + * The specular light color is multiplied with the specular material + * color to obtain the final color that contributes to the specular + * shading term. + */ + aiColor3D mColorSpecular; + + /** + * Ambient color of the light source + * + * The ambient light color is multiplied with the ambient material color + * to obtain the final color that contributes to the ambient shading term. + * + * Most renderers will ignore this value it, is just a remaining of the + * fixed-function pipeline that is still supported by quite many file + * formats. + */ + aiColor3D mColorAmbient; + + /** + * Inner angle of a spot light's light cone. + * + * The spot light has maximum influence on objects inside this angle. The + * angle is given in radians. It is 2PI for point lights and undefined + * for directional lights. + */ + float mAngleInnerCone; + + /** + * Outer angle of a spot light's light cone. + * + * The spot light does not affect objects outside this angle. The angle + * is given in radians. It is 2PI for point lights and undefined for + * directional lights. The outer angle must be greater than or equal to + * the inner angle. + * + * It is assumed that the application uses a smooth interpolation between + * the inner and the outer cone of the spot light. + */ + float mAngleOuterCone; + } +} |