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72e7df09cd
包含三个子项目: - avatar-h5-renderer: Live2D Cubism 4 H5 渲染器 (Vite + TS) - avatar_flutter_app: Flutter 容器 App (打包 H5 进 WebView) - gif-export: puppeteer 导出 32 个动作的透明 GIF (供 ESP32 圆屏播放) 模型资源: Haru, Natori (含贴图、moc3、motions, expressions) 设计文档: AI驱动虚拟形象渲染方案_v5.1.md Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
55 lines
2.1 KiB
GLSL
55 lines
2.1 KiB
GLSL
/**
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* Copyright(c) Live2D Inc. All rights reserved.
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*
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* Use of this source code is governed by the Live2D Open Software license
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* that can be found at https://www.live2d.com/eula/live2d-open-software-license-agreement_en.html.
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*/
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vec4 OverlapRgba(vec3 color, vec3 colorSource, vec3 colorDestination, vec3 parameter)
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{
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vec3 rgb = color * parameter.x + colorSource * parameter.y + colorDestination * parameter.z;
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float alpha = parameter.x + parameter.y + parameter.z;
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return vec4(rgb, alpha);
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}
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#if defined(ALPHA_BLEND_OVER)
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vec4 AlphaBlend(vec3 color, vec4 colorSource, vec4 colorDestination)
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{
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vec3 parameter = vec3(colorSource.a * colorDestination.a, colorSource.a * (1.0 - colorDestination.a), colorDestination.a * (1.0 - colorSource.a));
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return OverlapRgba(color, colorSource.rgb, colorDestination.rgb, parameter);
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}
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#elif defined(ALPHA_BLEND_ATOP)
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vec4 AlphaBlend(vec3 color, vec4 colorSource, vec4 colorDestination)
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{
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vec3 parameter = vec3(colorSource.a * colorDestination.a, 0, colorDestination.a * (1.0 - colorSource.a));
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return OverlapRgba(color, colorSource.rgb, colorDestination.rgb, parameter);
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}
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#elif defined(ALPHA_BLEND_OUT)
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vec4 AlphaBlend(vec3 color, vec4 colorSource, vec4 colorDestination)
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{
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vec3 parameter = vec3(0.0, 0.0, colorDestination.a * (1.0 - colorSource.a));
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return OverlapRgba(color, colorSource.rgb, colorDestination.rgb, parameter);
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}
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#elif defined(ALPHA_BLEND_CONJOINTOVER)
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vec4 AlphaBlend(vec3 color, vec4 colorSource, vec4 colorDestination)
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{
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vec3 parameter = vec3(min(colorSource.a, colorDestination.a), max(colorSource.a - colorDestination.a, 0.0), max(colorDestination.a - colorSource.a, 0.0));
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return OverlapRgba(color, colorSource.rgb, colorDestination.rgb, parameter);
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}
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#elif defined(ALPHA_BLEND_DISJOINTOVER)
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vec4 AlphaBlend(vec3 color, vec4 colorSource, vec4 colorDestination)
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{
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vec3 parameter = vec3(max(colorSource.a + colorDestination.a - 1.0, 0.0), min(colorSource.a, 1.0 - colorDestination.a), min(colorDestination.a, 1.0 - colorSource.a));
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return OverlapRgba(color, colorSource.rgb, colorDestination.rgb, parameter);
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}
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#else
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#error not supported alpha blend function
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#endif
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