2022-09-19 18:05:01 +08:00

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uniform mat4 uMVPMatrix; //总变换矩阵
attribute vec3 aPosition; //顶点位置
attribute vec2 aLongLat; //顶点经纬度
varying vec2 mcLongLat;
void main()
{
//根据总变换矩阵计算此次绘制此顶点位置
gl_Position = uMVPMatrix * vec4(aPosition,1);
//将顶点的经纬度传给片元着色器
mcLongLat=aLongLat;
}