shaders.RiftWarpMultisample.fs Maven / Gradle / Ivy

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There is a newer version: 1.0.4

#version 330

//uniform sampler2D Scene;
uniform sampler2DMS Scene;
uniform sampler2D OffsetMap;

in vec2 vTexCoord;
out vec4 FragColor;

const vec2 ZERO = vec2(0);
const vec2 ONE = vec2(1);

void main() {
    vec2 texCoord = vTexCoord;
    texCoord = texture(OffsetMap, texCoord).rg;
    vec2 clamped = clamp(texCoord, ZERO, ONE);
    if (!all(equal(texCoord, clamped))) {
        discard;
    }
    if (all(equal(texCoord, ZERO))) {
        discard;
    }

    ivec2 Texcoord = ivec2(textureSize(Scene) * texCoord);
    FragColor =  texelFetch(Scene, Texcoord, 0);
}