Running GLSL Code

• GLSL code should be executed in GLSL(GPU) mode;
  
• Click "Edit" in the "World rule" section;
• At this point, some code will be displayed on the panel.

void main(){
    outColor = getColor(uv);
}

This code will send the input pixel to the output pixel.

• You can change getColor(uv) to vec4(uv,0.0,1.0) to create a visually appealing UV color pattern;

void main(){
    outColor = vec4(uv,0.0,1.0);
}

• Then, simply click "Ok".
• Normally, you should see the following effect: