73 lines
1.7 KiB
Plaintext
73 lines
1.7 KiB
Plaintext
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//水波纹效果
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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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u_resolution: { value: [1280,720] }
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u_time: { value: 1.0 }
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}%
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CCProgram vs %{ // 顶点Shader模块开始
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#include <cc-global>
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precision highp float; //定义float高精度
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in vec3 a_position; // 顶点Shader 从渲染管道里面获取的顶点信息,使用attribute来修饰;
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in vec2 a_uv0; // 纹理坐标;
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out vec2 uv0; // 传递给着色Shader，varying 来修饰，进行插值
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void main () {
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gl_Position = cc_matViewProj * vec4(a_position, 1);
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uv0 = a_uv0;
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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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in vec2 uv0;
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uniform sampler2D texture;
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uniform ARGS {
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vec4 UVoffset;
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vec2 u_resolution;
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float u_time;
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float rotated;
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};
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#define F cos(x-y)*cos(y),sin(x+y)*sin(y)
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vec2 s(vec2 p)
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{
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float d=u_time*0.2,x=8.*(p.x+d),y=8.*(p.y+d);
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return vec2(F);
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}
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void mainImage( out vec4 fragColor, in vec2 fragCoord )
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{
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// 换成resolution
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vec2 rs = u_resolution.xy;
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// 换成纹理坐标v_texCoord.xy
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vec2 uv = fragCoord;
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vec2 q = uv+2./u_resolution.x*(s(uv)-s(uv+rs));
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//反转y
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//q.y=1.-q.y;
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fragColor = texture2D(texture, q);
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}
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void main()
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{
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vec2 UVnormalize;
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UVnormalize.x = (uv0.x-UVoffset.x)/(UVoffset.z-UVoffset.x);
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UVnormalize.y = (uv0.y-UVoffset.y)/(UVoffset.w-UVoffset.y);
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if(rotated > 0.5)
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{
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float temp = UVnormalize.x;
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UVnormalize.x = UVnormalize.y;
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UVnormalize.y = 1.0 - temp;
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}
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mainImage(gl_FragColor, uv0.xy);
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}
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}%
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