mirror of
https://github.com/curioustorvald/Terrarum.git
synced 2026-03-12 06:41:51 +09:00
moved essential resources out of the assets directory and into the jar
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35
src/shaders/blur.frag
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35
src/shaders/blur.frag
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@@ -0,0 +1,35 @@
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#ifdef GL_ES
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precision mediump float;
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#endif
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varying vec4 v_color;
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varying vec2 v_texCoords;
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uniform sampler2D u_texture;
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uniform vec2 iResolution;
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uniform float flip;
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uniform vec2 direction;
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vec4 blur(sampler2D image, vec2 uv, vec2 resolution, vec2 direction) {
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vec4 color = vec4(0.0);
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vec2 off1 = vec2(1.3846153846) * direction;
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vec2 off2 = vec2(3.2307692308) * direction;
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color += texture2D(image, uv) * 0.2270270270;
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color += texture2D(image, uv + (off1 / resolution)) * 0.3162162162;
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color += texture2D(image, uv - (off1 / resolution)) * 0.3162162162;
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color += texture2D(image, uv + (off2 / resolution)) * 0.0702702703;
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color += texture2D(image, uv - (off2 / resolution)) * 0.0702702703;
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return color;
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}
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void main() {
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vec2 uv = vec2(gl_FragCoord.xy / iResolution.xy);
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if (flip == 1.0) {
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uv.y = 1.0 - uv.y;
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}
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gl_FragColor = blur(u_texture, uv, iResolution.xy, direction);
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}
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