mirror of
https://github.com/smallmain/cocos-enhance-kit.git
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34 lines
892 B
PHP
34 lines
892 B
PHP
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precision mediump float;
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#include <particle-common>
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in vec3 a_position; // center position
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in vec4 a_texCoord; // x:index y:size zw:texcoord
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in vec3 a_texCoord1; // xyz:velocity
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in vec3 a_texCoord2;
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in vec4 a_color;
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#if CC_DRAW_WIRE_FRAME
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out vec3 vBarycentric;
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#endif
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vec4 vs_main() {
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highp vec4 pos = vec4(a_position, 1);
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vec4 velocity = vec4(a_texCoord1.xyz, 0);
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#if !CC_USE_WORLD_SPACE
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pos = cc_matWorld * pos;
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velocity = cc_matWorld * velocity;
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#endif
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float vertOffset = (a_texCoord.x - 0.5) * a_texCoord.y;
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vec3 camUp = normalize(cross(pos.xyz - cc_cameraPos.xyz, velocity.xyz));
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pos.xyz += camUp * vertOffset;
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pos = cc_matViewProj * pos;
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uv = a_texCoord.zw * mainTiling_Offset.xy + mainTiling_Offset.zw;;
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color = a_color;
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#if CC_DRAW_WIRE_FRAME
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vBarycentric = a_texCoord2;
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#endif
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return pos;
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}
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