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Matteo_
07-16-2016, 02:56 AM
I'm coding a shader in GLSL and I need to use sine and cosine functions.
The problem is that I obtain this error compiling the shader:


error(#202) No matching overloaded function found: cos


I look on the web and I found that there exists these definitions:


float cos(float angle)
vec2 cos(vec2 angle)
vec3 cos(vec3 angle)
vec4 cos(vec4 angle)


I want to use the scalar one, and this is the code that generate the error:



#version 450
[...]
layout (location = 6) uniform float angleY;
[...]
void main()
{
[...]
float cosangY = cos(angleY);
[...]
}


I also tried to compute the cosine on a constant value (instead of a uniform variable) but the same error is generated.


#version 450
[...]
void main()
{
[...]
float XXX= cos(0.0);
[...]
}



I'm a beginner in both shading and OpenGL, what I'm doing wrong in my code? Thanks

Matteo_
07-16-2016, 04:51 AM
Solved
I miss that I've redeclared "cos" and "sin" identifiers