gistfile1.txt

var glslVert = []byte(`
#version 120

attribute vec3 Vertex;
attribute vec2 TexCoord0;

uniform mat4 MVP;

uniform vec3 shift;
uniform vec3 scale;

varying vec2 tc;

void main()
{
	tc = scale.xy * TexCoord0;
	tc += shift.xy;

	gl_Position = MVP * vec4(Vertex, 1.0);
}
`)

var glslFrag = []byte(`
#version 120
 
varying vec2 tc;

uniform sampler2D Texture0;
uniform vec4 palette[64];

void main() {
	vec4 t = texture2D(Texture0, tc);
	int i = int(t.r * 256.0);
	gl_FragColor = palette[i];
}
`)