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1 | // This file has been automatically generated from resource file src/Shaders/Declarations.glsl |
| 2 | |
| 3 | static const char Shaders_Declarations_glsl[] = |
| 4 | "// Created on: 2013-10-10\n" |
| 5 | "// Created by: Denis BOGOLEPOV\n" |
| 6 | "// Copyright (c) 2013-2014 OPEN CASCADE SAS\n" |
| 7 | "//\n" |
| 8 | "// This file is part of Open CASCADE Technology software library.\n" |
| 9 | "//\n" |
| 10 | "// This library is free software; you can redistribute it and/or modify it under\n" |
| 11 | "// the terms of the GNU Lesser General Public License version 2.1 as published\n" |
| 12 | "// by the Free Software Foundation, with special exception defined in the file\n" |
| 13 | "// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT\n" |
| 14 | "// distribution for complete text of the license and disclaimer of any warranty.\n" |
| 15 | "//\n" |
| 16 | "// Alternatively, this file may be used under the terms of Open CASCADE\n" |
| 17 | "// commercial license or contractual agreement.\n" |
| 18 | "\n" |
| 19 | "// This files includes definition of common uniform variables in OCCT GLSL programs\n" |
| 20 | "\n" |
| 21 | "#define THE_MAX_LIGHTS 8\n" |
| 22 | "#define THE_MAX_CLIP_PLANES 8\n" |
| 23 | "\n" |
| 24 | "// compatibility macros\n" |
| 25 | "#if (__VERSION__ >= 130)\n" |
| 26 | " #define THE_ATTRIBUTE in\n" |
| 27 | " #define THE_SHADER_IN in\n" |
| 28 | " #define THE_SHADER_OUT out\n" |
| 29 | " #define THE_OUT out\n" |
| 30 | " #define occTexture2D texture\n" |
| 31 | "#else\n" |
| 32 | " #define THE_ATTRIBUTE attribute\n" |
| 33 | " #define THE_SHADER_IN varying\n" |
| 34 | " #define THE_SHADER_OUT varying\n" |
| 35 | " #define THE_OUT\n" |
| 36 | " #define occTexture2D texture2D\n" |
| 37 | "#endif\n" |
| 38 | "\n" |
| 39 | "#ifdef GL_ES\n" |
| 40 | " #define THE_PREC_ENUM lowp // enumerations should fit into lowp range\n" |
| 41 | "#else\n" |
| 42 | " #define THE_PREC_ENUM\n" |
| 43 | "#endif\n" |
| 44 | "\n" |
| 45 | "// Vertex attributes\n" |
| 46 | "#ifdef VERTEX_SHADER\n" |
| 47 | " THE_ATTRIBUTE vec4 occVertex;\n" |
| 48 | " THE_ATTRIBUTE vec3 occNormal;\n" |
| 49 | " THE_ATTRIBUTE vec4 occTexCoord;\n" |
| 50 | " THE_ATTRIBUTE vec4 occVertColor;\n" |
| 51 | "#elif (__VERSION__ >= 130)\n" |
| 52 | " out vec4 occFragColor;\n" |
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53 | " #ifdef OCC_ENABLE_draw_buffers\n" |
| 54 | " out vec4 occFragCoverage;\n" |
| 55 | " #endif\n" |
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56 | "#else\n" |
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57 | " #ifdef OCC_ENABLE_draw_buffers\n" |
| 58 | " #define occFragColor gl_FragData[0]\n" |
| 59 | " #define occFragCoverage gl_FragData[1]\n" |
| 60 | " #else\n" |
| 61 | " #define occFragColor gl_FragColor\n" |
| 62 | " #endif\n" |
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63 | "#endif\n" |
| 64 | "\n" |
| 65 | "// Matrix state\n" |
| 66 | "uniform mat4 occWorldViewMatrix; //!< World-view matrix\n" |
| 67 | "uniform mat4 occProjectionMatrix; //!< Projection matrix\n" |
| 68 | "uniform mat4 occModelWorldMatrix; //!< Model-world matrix\n" |
| 69 | "\n" |
| 70 | "uniform mat4 occWorldViewMatrixInverse; //!< Inverse of the world-view matrix\n" |
| 71 | "uniform mat4 occProjectionMatrixInverse; //!< Inverse of the projection matrix\n" |
| 72 | "uniform mat4 occModelWorldMatrixInverse; //!< Inverse of the model-world matrix\n" |
| 73 | "\n" |
| 74 | "uniform mat4 occWorldViewMatrixTranspose; //!< Transpose of the world-view matrix\n" |
| 75 | "uniform mat4 occProjectionMatrixTranspose; //!< Transpose of the projection matrix\n" |
| 76 | "uniform mat4 occModelWorldMatrixTranspose; //!< Transpose of the model-world matrix\n" |
| 77 | "\n" |
| 78 | "uniform mat4 occWorldViewMatrixInverseTranspose; //!< Transpose of the inverse of the world-view matrix\n" |
| 79 | "uniform mat4 occProjectionMatrixInverseTranspose; //!< Transpose of the inverse of the projection matrix\n" |
| 80 | "uniform mat4 occModelWorldMatrixInverseTranspose; //!< Transpose of the inverse of the model-world matrix\n" |
| 81 | "\n" |
| 82 | "// light type enumeration\n" |
| 83 | "const int OccLightType_Direct = 1; //!< directional light source\n" |
| 84 | "const int OccLightType_Point = 2; //!< isotropic point light source\n" |
| 85 | "const int OccLightType_Spot = 3; //!< spot light source\n" |
| 86 | "\n" |
| 87 | "// Light sources\n" |
| 88 | "uniform vec4 occLightAmbient; //!< Cumulative ambient color\n" |
| 89 | "uniform THE_PREC_ENUM int occLightSourcesCount; //!< Total number of light sources\n" |
| 90 | "int occLight_Type (in int theId); //!< Type of light source\n" |
| 91 | "int occLight_IsHeadlight (in int theId); //!< Is light a headlight?\n" |
| 92 | "vec4 occLight_Diffuse (in int theId); //!< Diffuse intensity for specified light source\n" |
| 93 | "vec4 occLight_Specular (in int theId); //!< Specular intensity (currently - equals to diffuse intencity)\n" |
| 94 | "vec4 occLight_Position (in int theId); //!< Position of specified light source\n" |
| 95 | "vec4 occLight_SpotDirection (in int theId); //!< Direction of specified spot light source\n" |
| 96 | "float occLight_ConstAttenuation (in int theId); //!< Const attenuation factor of positional light source\n" |
| 97 | "float occLight_LinearAttenuation (in int theId); //!< Linear attenuation factor of positional light source\n" |
| 98 | "float occLight_SpotCutOff (in int theId); //!< Maximum spread angle of the spot light (in radians)\n" |
| 99 | "float occLight_SpotExponent (in int theId); //!< Attenuation of the spot light intensity (from 0 to 1)\n" |
| 100 | "\n" |
| 101 | "// Front material properties accessors\n" |
| 102 | "vec4 occFrontMaterial_Emission(void); //!< Emission color\n" |
| 103 | "vec4 occFrontMaterial_Ambient(void); //!< Ambient reflection\n" |
| 104 | "vec4 occFrontMaterial_Diffuse(void); //!< Diffuse reflection\n" |
| 105 | "vec4 occFrontMaterial_Specular(void); //!< Specular reflection\n" |
| 106 | "float occFrontMaterial_Shininess(void); //!< Specular exponent\n" |
| 107 | "float occFrontMaterial_Transparency(void); //!< Transparency coefficient\n" |
| 108 | "\n" |
| 109 | "// Back material properties accessors\n" |
| 110 | "vec4 occBackMaterial_Emission(void); //!< Emission color\n" |
| 111 | "vec4 occBackMaterial_Ambient(void); //!< Ambient reflection\n" |
| 112 | "vec4 occBackMaterial_Diffuse(void); //!< Diffuse reflection\n" |
| 113 | "vec4 occBackMaterial_Specular(void); //!< Specular reflection\n" |
| 114 | "float occBackMaterial_Shininess(void); //!< Specular exponent\n" |
| 115 | "float occBackMaterial_Transparency(void); //!< Transparency coefficient\n" |
| 116 | "\n" |
| 117 | "uniform vec4 occColor; //!< color value (in case of disabled lighting)\n" |
| 118 | "uniform THE_PREC_ENUM int occDistinguishingMode; //!< Are front and back faces distinguished?\n" |
| 119 | "uniform THE_PREC_ENUM int occTextureEnable; //!< Is texture enabled?\n" |
| 120 | "uniform sampler2D occActiveSampler; //!< Current active sampler\n" |
| 121 | "uniform vec4 occTexTrsf2d[2]; //!< 2D texture transformation parameters\n" |
| 122 | "uniform float occPointSize; //!< point size\n" |
| 123 | "\n" |
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124 | "//! Parameters of blended order-independent transparency rendering algorithm\n" |
| 125 | "uniform int occOitOutput; //!< Enable bit for writing output color buffers for OIT (occFragColor, occFragCoverage)\n" |
| 126 | "uniform float occOitDepthFactor; //!< Influence of the depth component to the coverage of the accumulated fragment\n" |
| 127 | "\n" |
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128 | "//! Parameters of clipping planes\n" |
| 129 | "uniform vec4 occClipPlaneEquations[THE_MAX_CLIP_PLANES];\n" |
| 130 | "uniform THE_PREC_ENUM int occClipPlaneCount; //!< Total number of clip planes\n"; |
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