Hi Anne,
Anne Braun wrote:
> Shader:
> #define NUMPOINTS 3
>
> uniform vec3 vectors[3];
>
> void main(void)
> {
> vec3 vector;
>
> ...
> for(int i = 0; i < NUMPOINTS; i++)
> {
> vector = vectors[i];
> ...
>
> To be honest, I have no idea how to debug the shader to check whether
> the values are correct. But using with a single vector instead of a
> array it works?!
A common way to debug shaders is to output values as fragment color. You
could try something like
gl_fragColor = vec4(vectors[0], 1.0);
It would also be helpful to set the colors in your "vectors" array to,
e.g., (1,0,0), (0,1,0) and (0,0,1).
In this case you will see right away if the colors match your expectations.
Hope this helps,
Daniel
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