[GEM-dev] array in glsl; was: [pd-gem:gem] 5 new commits to Gem-code

[IOhannes m zmölnig]

On 11/28/23 09:58, cyrille henry wrote:
> Hello all, Iohannes
> 
> I noticed few commit about arrays support in glsl_program.
> Do you have a small example on the way to use array in shaders?

see the attached example.

vmfds
IOhannes



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#version 120
/* uniform arrays require a minimum version of 120 */

/* a 4-element array */
uniform float myArray[4];
/* a 2-element vector */
uniform vec2 dimen;

uniform sampler2D MyTex;

void main() {
  vec2 uv = gl_FragCoord.xy / dimen;
  vec4 gain = vec4(myArray[0], myArray[1], myArray[2], myArray[3]);
  gl_FragColor = (texture2D(MyTex, uv)) * gain;
}


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