mirror of
https://github.com/Ttanasart-pt/Pixel-Composer.git
synced 2025-01-14 08:16:34 +01:00
118 lines
3.1 KiB
GLSL
118 lines
3.1 KiB
GLSL
// FIXME: Temporary fix!
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precision highp float;
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////////////////////////////////////////////////////////////////////////////////
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//
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// Defines
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//
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// Maximum number of bones of animated models
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#define BBMOD_MAX_BONES 128
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// Maximum number of vec4 uniforms for dynamic batch data
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#define BBMOD_MAX_BATCH_VEC4S 192
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////////////////////////////////////////////////////////////////////////////////
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//
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// Attributes
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//
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attribute vec4 in_Position;
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attribute vec3 in_Normal;
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attribute vec2 in_TextureCoord0;
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attribute vec2 in_TextureCoord1;
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attribute vec4 in_TangentW;
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////////////////////////////////////////////////////////////////////////////////
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//
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// Uniforms
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//
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uniform vec2 bbmod_TextureOffset;
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uniform vec2 bbmod_TextureScale;
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// 1.0 to enable shadows
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uniform float bbmod_ShadowmapEnableVS;
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// WORLD_VIEW_PROJECTION matrix used when rendering shadowmap
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uniform mat4 bbmod_ShadowmapMatrix;
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// Offsets vertex position by its normal scaled by this value
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uniform float bbmod_ShadowmapNormalOffset;
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////////////////////////////////////////////////////////////////////////////////
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//
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// Varyings
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//
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varying vec3 v_vVertex;
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varying vec2 v_vTexCoord;
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varying vec2 v_vTexCoord2;
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varying mat3 v_mTBN;
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varying vec4 v_vPosition;
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varying vec4 v_vPosShadowmap;
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varying vec4 v_vEye;
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////////////////////////////////////////////////////////////////////////////////
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//
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// Includes
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//
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/// @desc Transforms vertex and normal by animation and/or batch data.
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///
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/// @param vertex Variable to hold the transformed vertex.
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/// @param normal Variable to hold the transformed normal.
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/// @param tangent Variable to hold the transformed tangent.
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/// @param bitangent Variable to hold the transformed bitangent.
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void Transform(
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inout vec4 vertex,
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inout vec3 normal,
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inout vec3 tangent,
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inout vec3 bitangent)
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{
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vertex = gm_Matrices[MATRIX_WORLD] * vertex;
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normal = normalize((gm_Matrices[MATRIX_WORLD] * vec4(normal, 0.0)).xyz);
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tangent = normalize((gm_Matrices[MATRIX_WORLD] * vec4(tangent, 0.0)).xyz);
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bitangent = normalize((gm_Matrices[MATRIX_WORLD] * vec4(bitangent, 0.0)).xyz);
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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// Main
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//
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void main()
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{
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vec4 position = in_Position;
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vec3 normal = in_Normal;
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vec3 tangent = in_TangentW.xyz;
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vec3 bitangent = cross(normal, tangent) * in_TangentW.w;
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Transform(position, normal, tangent, bitangent);
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vec4 positionWVP = gm_Matrices[MATRIX_PROJECTION] * (gm_Matrices[MATRIX_VIEW] * position);
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v_vVertex = position.xyz;
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gl_Position = positionWVP;
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v_vPosition = positionWVP;
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v_vTexCoord = bbmod_TextureOffset + in_TextureCoord0 * bbmod_TextureScale;
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v_vTexCoord2 = in_TextureCoord1;
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v_vEye.xyz = normalize(-vec3(
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gm_Matrices[MATRIX_VIEW][0][2],
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gm_Matrices[MATRIX_VIEW][1][2],
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gm_Matrices[MATRIX_VIEW][2][2]
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));
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v_vEye.w = (gm_Matrices[MATRIX_PROJECTION][2][3] == 0.0) ? 1.0 : 0.0;
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v_mTBN = mat3(tangent, bitangent, normal);
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////////////////////////////////////////////////////////////////////////////
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// Vertex position in shadowmap
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if (bbmod_ShadowmapEnableVS == 1.0)
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{
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v_vPosShadowmap = bbmod_ShadowmapMatrix
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* vec4(v_vVertex + normal * bbmod_ShadowmapNormalOffset, 1.0);
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}
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}
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