reference/shaders/frag/sampler-ms.frag

#version 310 es
precision mediump float;
precision highp int;

layout(binding = 0) uniform mediump sampler2DMS uSampler;

layout(location = 0) out vec4 FragColor;

void main()
{
    ivec2 coord = ivec2(gl_FragCoord.xy);
    FragColor = ((texelFetch(uSampler, coord, 0) + texelFetch(uSampler, coord, 1)) + texelFetch(uSampler, coord, 2)) + texelFetch(uSampler, coord, 3);
}