20 lines
346 B
GLSL
20 lines
346 B
GLSL
#version 450
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uniform sampler2D tex;
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uniform vec2 texSize;
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in vec2 texCoord;
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out vec4 fragColor;
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void main() {
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vec3 col = vec3(0.0);
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for (int i = -1; i <= 1; ++i) {
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for (int j = -1; j <= 1; ++j) {
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vec3 v = texelFetch(tex, ivec2(texCoord * texSize * 2) + ivec2(i, j), 0).rgb;
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col = max(col, v);
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}
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}
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fragColor = vec4(col, 1.0);
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}
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