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uniform mat4 shadowViewMat;
uniform mat4 shadowProjMat;
uniform mat4 modelMat;
uniform mat4 pieceMats[128];
uniform vec4 shadowParams;
layout(location = 0) in vec3 positionAttr;
// layout(location = 1) in vec3 normalAttr;
// layout(location = 2) in vec3 sTangentAttr;
// layout(location = 3) in vec3 tTangentAttr;
// layout(location = 4) in vec2 texCoor0Attr;
// layout(location = 5) in vec2 texCoor1Attr;
layout(location = 6) in uint pieceIdxAttr;
void main() {
mat4 modelPieceMat = modelMat * pieceMats[pieceIdxAttr];
vec4 vertexPos = vec4(positionAttr, 1.0);
vec4 vertexShadowPos = shadowViewMat * modelPieceMat * vertexPos;
gl_Position = shadowProjMat * vertexShadowPos;
}
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