void GLProgram::setUniformsForBuiltins(const Mat4 &matrixMV)
{
auto& matrixP = _director->getMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_PROJECTION);
if(_flags.usesP)
setUniformLocationWithMatrix4fv(_builtInUniforms[UNIFORM_P_MATRIX], matrixP.m, 1);
if(_flags.usesMV)
setUniformLocationWithMatrix4fv(_builtInUniforms[UNIFORM_MV_MATRIX], matrixMV.m, 1);
if(_flags.usesMVP) {
Mat4 matrixMVP = matrixP * matrixMV;
setUniformLocationWithMatrix4fv(_builtInUniforms[UNIFORM_MVP_MATRIX], matrixMVP.m, 1);
}
if (_flags.usesNormal)
{
Mat4 mvInverse = matrixMV;
mvInverse.m[12] = mvInverse.m[13] = mvInverse.m[14] = 0.0f;
mvInverse.inverse();
mvInverse.transpose();
GLfloat normalMat[9];
normalMat[0] = mvInverse.m[0];
normalMat[1] = mvInverse.m[1];
normalMat[2] = mvInverse.m[2];
normalMat[3] = mvInverse.m[4];
normalMat[4] = mvInverse.m[5];
normalMat[5] = mvInverse.m[6];
normalMat[6] = mvInverse.m[8];
normalMat[7] = mvInverse.m[9];
normalMat[8] = mvInverse.m[10];
setUniformLocationWithMatrix3fv(_builtInUniforms[UNIFORM_NORMAL_MATRIX], normalMat, 1);
}
if(_flags.usesTime) {
// This doesn't give the most accurate global time value.
// Cocos2D doesn't store a high precision time value, so this will have to do.
// Getting Mach time per frame per shader using time could be extremely expensive.
float time = _director->getTotalFrames() * _director->getAnimationInterval();
setUniformLocationWith4f(_builtInUniforms[GLProgram::UNIFORM_TIME], time/10.0, time, time*2, time*4);
setUniformLocationWith4f(_builtInUniforms[GLProgram::UNIFORM_SIN_TIME], time/8.0, time/4.0, time/2.0, sinf(time));
setUniformLocationWith4f(_builtInUniforms[GLProgram::UNIFORM_COS_TIME], time/8.0, time/4.0, time/2.0, cosf(time));
}
if(_flags.usesRandom)
setUniformLocationWith4f(_builtInUniforms[GLProgram::UNIFORM_RANDOM01], CCRANDOM_0_1(), CCRANDOM_0_1(), CCRANDOM_0_1(), CCRANDOM_0_1());
}
void GLProgram::setUniformsForBuiltins(const Mat4 &matrixM)
{
auto& vp = _director->getVPMat();
if (_flags.usesM)
setUniformLocationWithMatrix4fv(_builtInUniforms[UNIFORM_M_MATRIX], matrixM.m, 1);
if (_flags.usesV)
setUniformLocationWithMatrix4fv(_builtInUniforms[UNIFORM_V_MATRIX], vp.view.m, 1);
if (_flags.usesP)
setUniformLocationWithMatrix4fv(_builtInUniforms[UNIFORM_P_MATRIX], vp.projection.m, 1);
if (_flags.usesVP)
setUniformLocationWithMatrix4fv(_builtInUniforms[UNIFORM_VP_MATRIX], vp.viewProjection.m, 1);
if (_flags.usesMV) {
Mat4 matrixMV = vp.view * matrixM;
setUniformLocationWithMatrix4fv(_builtInUniforms[UNIFORM_MV_MATRIX], matrixMV.m, 1);
}
if (_flags.usesEyePosition)
{
auto pos = Camera::getVisitingCamera()->getEyePosition();
setUniformLocationWith3f(_builtInUniforms[UNIFORM_EYE_POSITION], pos.x, pos.y, pos.z);
}
if (_flags.usesMVP) {
Mat4 matrixMVP = vp.viewProjection * matrixM;
setUniformLocationWithMatrix4fv(_builtInUniforms[UNIFORM_MVP_MATRIX], matrixMVP.m, 1);
}
if (_flags.usesNormal)
{
Mat4 mvInverse = matrixM;
mvInverse.m[12] = mvInverse.m[13] = mvInverse.m[14] = 0.0f;
mvInverse.inverse();
mvInverse.transpose();
GLfloat normalMat[9];
normalMat[0] = mvInverse.m[0];normalMat[1] = mvInverse.m[1];normalMat[2] = mvInverse.m[2];
normalMat[3] = mvInverse.m[4];normalMat[4] = mvInverse.m[5];normalMat[5] = mvInverse.m[6];
normalMat[6] = mvInverse.m[8];normalMat[7] = mvInverse.m[9];normalMat[8] = mvInverse.m[10];
setUniformLocationWithMatrix3fv(_builtInUniforms[UNIFORM_NORMAL_MATRIX], normalMat, 1);
}
if (_flags.usesTime) {
// This doesn't give the most accurate global time value.
// Cocos2D doesn't store a high precision time value, so this will have to do.
// Getting Mach time per frame per shader using time could be extremely expensive.
float time = _director->getTotalFrames() * _director->getAnimationInterval();
setUniformLocationWith4f(_builtInUniforms[GLProgram::UNIFORM_TIME], time/10.0, time, time*2, time*4);
setUniformLocationWith4f(_builtInUniforms[GLProgram::UNIFORM_SIN_TIME], time/8.0, time/4.0, time/2.0, sinf(time));
setUniformLocationWith4f(_builtInUniforms[GLProgram::UNIFORM_COS_TIME], time/8.0, time/4.0, time/2.0, cosf(time));
}
if (_flags.usesRandom)
setUniformLocationWith4f(_builtInUniforms[GLProgram::UNIFORM_RANDOM01], CCRANDOM_0_1(), CCRANDOM_0_1(), CCRANDOM_0_1(), CCRANDOM_0_1());
}
