playcanvas/build/playcanvas/src/scene/shader-lib/glsl/chunks/render-pass/frag/upsample.d.ts

Open-source WebGL/WebGPU 3D engine for the web

declare const _default: "\n    uniform sampler2D sourceTexture;\n    uniform vec2 sourceInvResolution;\n    varying vec2 uv0;\n\n    void main()\n    {\n        float x = sourceInvResolution.x;\n        float y = sourceInvResolution.y;\n\n        vec3 a = texture2D (sourceTexture, vec2 (uv0.x - x, uv0.y + y)).rgb;\n        vec3 b = texture2D (sourceTexture, vec2 (uv0.x,     uv0.y + y)).rgb;\n        vec3 c = texture2D (sourceTexture, vec2 (uv0.x + x, uv0.y + y)).rgb;\n\n        vec3 d = texture2D (sourceTexture, vec2 (uv0.x - x, uv0.y)).rgb;\n        vec3 e = texture2D (sourceTexture, vec2 (uv0.x,     uv0.y)).rgb;\n        vec3 f = texture2D (sourceTexture, vec2 (uv0.x + x, uv0.y)).rgb;\n\n        vec3 g = texture2D (sourceTexture, vec2 (uv0.x - x, uv0.y - y)).rgb;\n        vec3 h = texture2D (sourceTexture, vec2 (uv0.x,     uv0.y - y)).rgb;\n        vec3 i = texture2D (sourceTexture, vec2 (uv0.x + x, uv0.y - y)).rgb;\n\n        vec3 value = e * 0.25;\n        value += (b + d + f + h) * 0.125;\n        value += (a + c + g + i) * 0.0625;\n\n        gl_FragColor = vec4(value, 1.0);\n    }\n";
export default _default;