luboslenco
26 lines
752 B
GLSL
26 lines
752 B
GLSL
#version 450
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uniform sampler2D tex;
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uniform vec2 screen_size_inv;
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in vec2 tex_coord;
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out vec4 frag_color;
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vec4 texture_ss(sampler2D tex, vec2 tc, vec2 tex_step) {
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vec4 col = texture(tex, tc);
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col += texture(tex, tc + vec2(1.5, 0.0) * tex_step);
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col += texture(tex, tc + vec2(-1.5, 0.0) * tex_step);
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col += texture(tex, tc + vec2(0.0, 1.5) * tex_step);
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col += texture(tex, tc + vec2(0.0, -1.5) * tex_step);
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col += texture(tex, tc + vec2(1.5, 1.5) * tex_step);
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col += texture(tex, tc + vec2(-1.5, -1.5) * tex_step);
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col += texture(tex, tc + vec2(1.5, -1.5) * tex_step);
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col += texture(tex, tc + vec2(-1.5, 1.5) * tex_step);
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return col / 9.0;
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}
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void main() {
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// 4X resolve
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frag_color = texture_ss(tex, tex_coord, screen_size_inv / 4.0);
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}
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