void RenderMethod_Grass_CG::setShaderData(const GeometryChunk &gc) {
const Renderer::Light &light0 = renderer->getLight();
ASSERT(light0.type == Renderer::Light::POINT, "point lights only pls");
mat4 MI = (gc.transformation).inverse(); // world -> object projection
// Set the position of the light (in object-space)
vec3 LightPosObj = MI.transformVector(light0.position);
cgGLSetParameter3fv(cgLightPos, LightPosObj);
// Set the position of the camera (in object-space)
vec3 CameraPosWld = renderer->getCamera().getPosition();
vec3 CameraPosObj = MI.transformVector(CameraPosWld);
cgGLSetParameter3fv(cgCameraPos, CameraPosObj);
// Send the inverse view matrix
mat4 ViewI = getViewI();
cgGLSetMatrixParameterfr(cgViewI, ViewI);
// Send the camera right vector (in object-space)
vec3 CameraRightEye = vec3(1.0, 0.0, 0.0);
vec3 CameraRightObj = ViewI.transformVector(CameraRightEye);
cgGLSetParameter3fv(cgCameraRight, CameraRightObj);
// Send the camera right vector (in object-space)
vec3 CameraUpEye = vec3(0.0, 1.0, 0.0);
vec3 CameraUpObj = ViewI.transformVector(CameraUpEye);
cgGLSetParameter3fv(cgCameraUp, CameraUpObj);
// Set the light properties
cgGLSetParameter1fv(cgkC, &light0.kC);
cgGLSetParameter1fv(cgkL, &light0.kL);
cgGLSetParameter1fv(cgkQ, &light0.kQ);
// Set the material properties
cgGLSetParameter4fv(cgKa, gc.material.Ka);
cgGLSetParameter4fv(cgKd, gc.material.Kd);
// Set animation time
cgGLSetParameter1fv(cgTime, &angle);
// Everything else
cgGLSetStateMatrixParameter(cgMVP, CG_GL_MODELVIEW_PROJECTION_MATRIX, CG_GL_MATRIX_IDENTITY);
cgGLSetStateMatrixParameter(cgView, CG_GL_MODELVIEW_MATRIX, CG_GL_MATRIX_IDENTITY);
}
void Effect::setMatrix( const char *_name, const float *_matrix ) {
CGparameter param = cgGetNamedEffectParameter( effect, _name );
cgGLSetMatrixParameterfr( param, _matrix );
}
void IOGLBaseShader::SetUniform(const CString& strName, const Math::CMatrix& mValue){
auto uParam = this->GetParameter(strName);
cgGLSetMatrixParameterfr(uParam, mValue[0].GetPointer());
}
