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18 lines
495 B
C
18 lines
495 B
C
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#ifndef VIG
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#define VIG
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#pragma parameter g_vignette "Vignette Toggle" 1.0 0.0 1.0 1.0
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#pragma parameter g_vstr "Vignette Strength" 40.0 0.0 50.0 1.0
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#pragma parameter g_vpower "Vignette Power" 0.20 0.0 0.5 0.01
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vec3 vignette(vec3 in_col, vec2 in_coord){
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vec2 coord = in_coord * (1.0 - in_coord.xy);
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float vig = coord.x * coord.y * g_vstr;
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vig = min(pow(vig, g_vpower), 1.0);
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vec3 out_col = in_col;
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out_col *= (g_vignette == 1.0) ? vig : 1.0;
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return out_col;
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}
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#endif
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