Voxcartes

Resources / Libraries

• REGL
• REGL Examples

ShaderFragments

<FragmentName>
    - begin (before main())
    - main (in main())
    - end (at end of file)
    - <name> (direct replacement)

For example

// shader.vert

// #include<Screenspace>

#ifdef GL_ES
precision highp float;
#endif

attribute vec2 position;

void main() {
    gl_Position = vec4(position, 0, 1);
}

// Screenspace/begin.vert
varying vec2 vPos;

// Screenspace/main.vert
vPos = position * 0.5 + 0.5;

becomes

// shader.vert

varying vec2 vPos;

precision highp float;

attribute vec2 position;

void main() {
    vPos = position * 0.5 + 0.5;
    gl_Position = vec4(position, 0, 1);
}