mirror of
https://github.com/ifengzp/cocos-awesome.git
synced 2024-12-26 03:39:22 +00:00
95 lines
2.0 KiB
Plaintext
95 lines
2.0 KiB
Plaintext
// Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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CCEffect %{
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techniques:
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- passes:
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- vert: vs
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frag: fs
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blendState:
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targets:
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- blend: true
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rasterizerState:
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cullMode: none
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properties:
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texture: { value: white }
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time: {value: 0}
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}%
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CCProgram vs %{
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precision highp float;
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#include <cc-global>
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#include <cc-local>
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in vec3 a_position;
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in vec4 a_color;
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out vec4 v_color;
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#if USE_TEXTURE
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in vec2 a_uv0;
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out vec2 v_uv0;
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#endif
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void main () {
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vec4 pos = vec4(a_position, 1);
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#if CC_USE_MODEL
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pos = cc_matViewProj * cc_matWorld * pos;
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#else
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pos = cc_matViewProj * pos;
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#endif
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#if USE_TEXTURE
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v_uv0 = a_uv0;
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#endif
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v_color = a_color;
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gl_Position = pos;
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}
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}%
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CCProgram fs %{
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precision highp float;
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uniform sampler2D texture;
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uniform sampler2D texture2;
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uniform Common {
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float time;
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};
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float progress = time;
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in mediump vec2 v_uv0;
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in vec4 v_color;
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vec4 getFromColor(vec2 uv) {
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return texture(texture, uv);
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}
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vec4 getToColor(vec2 uv) {
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return texture(texture2, uv);
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}
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vec4 transition(vec2 p) {
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// 计算块索引，每个块大小为16x16
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vec2 block = floor(p.xy / vec2(16));
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// 计算UV噪声，根据进度调整UV噪声
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vec2 uv_noise = block / vec2(64);
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uv_noise += floor(vec2(progress) * vec2(1200.0, 3500.0)) / vec2(64);
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// 计算扭曲距离，并算出各颜色通道的偏移值
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vec2 dist = progress > 0.0 ? (fract(uv_noise) - 0.5) * 0.3 * (1.0 - progress) : vec2(0.0);
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vec2 red = p + dist * 0.2;
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vec2 green = p + dist * 0.3;
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vec2 blue = p + dist * 0.5;
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return vec4(
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mix(getFromColor(red).r, getToColor(red).r, progress),
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mix(getFromColor(green).g, getToColor(green).g, progress),
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mix(getFromColor(blue).b, getToColor(blue).b, progress),
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1.0
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);
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}
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void main () {
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gl_FragColor = v_color * transition(v_uv0);
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}
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}%
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