@phaserjs/phaser/renderer/webgl1/glsl/MULTI_QUAD_FRAG.d.ts

Phaser 4

export declare const MULTI_QUAD_FRAG = "#define SHADER_NAME MULTI_QUAD_FRAG\n#define numTextures %count%\n\nprecision highp float;\n\nvarying vec2 vTextureCoord;\nvarying float vTextureId;\nvarying vec4 vTintColor;\n\nuniform sampler2D uTexture[%count%];\nuniform mat4 uColorMatrix;\nuniform vec4 uColorOffset;\n\nvec4 getSampler (int index, vec2 uv)\n{\n    for (int i = 0; i < numTextures; ++i)\n    {\n        vec4 color = texture2D(uTexture[i], uv);\n\n        if (i == index)\n        {\n            return color * vec4(vTintColor.rgb * vTintColor.a, vTintColor.a);\n        }\n    }\n\n    //  Return black\n    return vec4(0);\n}\n\nvoid main (void)\n{\n    vec4 color = getSampler(int(vTextureId), vTextureCoord);\n\n    //  Un pre-mult alpha\n    if (color.a > 0.0)\n    {\n        color.rgb /= color.a;\n    }\n\n    vec4 result = color * uColorMatrix + (uColorOffset / 255.0);\n\n    //  Pre-mult alpha\n    result.rgb *= result.a;\n\n    gl_FragColor = vec4(result.rgb, result.a);\n}";
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