4 * require_extensions: ${extensions}
7 #extension GL_EXT_gpu_shader4 : require
9 uniform ${prefix}sampler${param.sampler} s;
10 flat varying ${param.coord} coord;
15 ${prefix}vec4 v = ${param.func}${offset}(s, coord,
16 % if offset == 'Offset':
17 ${param.offsetcoord}(1),
21 gl_FragColor = vec4(v);