@esotericsoftware/spine-pixi-v8/dist/darktint/darkTintBit.js

The official Spine Runtimes for PixiJS v8.

/******************************************************************************
 * Spine Runtimes License Agreement
 * Last updated July 28, 2023. Replaces all prior versions.
 *
 * Copyright (c) 2013-2023, Esoteric Software LLC
 *
 * Integration of the Spine Runtimes into software or otherwise creating
 * derivative works of the Spine Runtimes is permitted under the terms and
 * conditions of Section 2 of the Spine Editor License Agreement:
 * http://esotericsoftware.com/spine-editor-license
 *
 * Otherwise, it is permitted to integrate the Spine Runtimes into software or
 * otherwise create derivative works of the Spine Runtimes (collectively,
 * "Products"), provided that each user of the Products must obtain their own
 * Spine Editor license and redistribution of the Products in any form must
 * include this license and copyright notice.
 *
 * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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export const darkTintBit = {
    name: 'color-bit',
    vertex: {
        header: /* wgsl */ `
            @in aDarkColor: vec4<f32>;
            @out vDarkColor: vec4<f32>;
        `,
        main: /* wgsl */ `
        vDarkColor = aDarkColor;
        `
    },
    fragment: {
        header: /* wgsl */ `
            @in vDarkColor: vec4<f32>;
        `,
        end: /* wgsl */ `

        let alpha = outColor.a * vColor.a;
        let rgb = ((outColor.a - 1.0) * vDarkColor.a + 1.0 - outColor.rgb) * vDarkColor.rgb + outColor.rgb * vColor.rgb;

        finalColor = vec4<f32>(rgb, alpha);

        `
    }
};
export const darkTintBitGl = {
    name: 'color-bit',
    vertex: {
        header: /* glsl */ `
            in vec4 aDarkColor;
            out vec4 vDarkColor;
        `,
        main: /* glsl */ `
            vDarkColor = aDarkColor;
        `
    },
    fragment: {
        header: /* glsl */ `
            in vec4 vDarkColor;
        `,
        end: /* glsl */ `

        finalColor.a = outColor.a * vColor.a;
        finalColor.rgb = ((outColor.a - 1.0) * vDarkColor.a + 1.0 - outColor.rgb) * vDarkColor.rgb + outColor.rgb * vColor.rgb;
        `
    }
};
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