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graphics: Fix screen filter calculation

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Hajime Hoshi 2018-02-23 02:36:12 +09:00
parent ed80286431
commit b036cac616
1 changed files with 1 additions and 1 deletions
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internal/graphics/shader.go
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@ -162,7 +162,7 @@ void main(void) {
vec4 c3 = texture2D(texture, p1);
// Texels must be in the source rect, so it is not necessary to check that like linear filter.
vec2 rate = min(max(1.0 - ((1.0 - fract(pos * source_size)) * scale), 0.0), 1.0);
vec2 rate = min(max((fract(pos * source_size) - 0.5) * scale, 0.0), 1.0);
vec4 color = mix(mix(c0, c1, rate.x), mix(c2, c3, rate.x), rate.y);
#endif