15 lines
484 B
Bash
15 lines
484 B
Bash
uniform mat4 uMVPMatrix; //总变换矩阵
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uniform float uPointSize;//点尺寸
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uniform float uTime;
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attribute vec3 aVelocity; //顶点速度
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void main()
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{
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float currTime=mod(uTime,10.0);
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float px=aVelocity.x*currTime;
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float py=aVelocity.y*currTime-0.5*1.5*currTime*currTime+3.0;
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float pz=aVelocity.z*currTime;
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//根据总变换矩阵计算此次绘制此顶点位置
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gl_Position = uMVPMatrix * vec4(px,py,pz,1);
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//设置粒子尺寸
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gl_PointSize=uPointSize;
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} |