Basic fragment shader for glshader

[Michael Tyson]

Ah! To answer my own question:

The answer is in ext/gl/gstglfiltershader.c - the vertex shader defines v_texcoord (lowercase C), so the most basic fragment shader appears to be:

precision mediump float;
varying vec2 v_texcoord;
uniform sampler2D tex;
void main()
{
 gl_FragColor = texture2D( tex, v_texcoord );
}


On 14 Sep 2014, at 2:17 pm, Michael Tyson <michael at tyson.id.au> wrote:

> precision mediump float;
> varying vec2 v_texCoord;
> uniform sampler2D tex;
> void main()
> {
>  gl_FragColor = texture2D( tex, v_texCoord );
> }

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