U3D Shader转Laya Shader UnityObjectToClipPos函数源码翻译

遇到问题随时记录

//u_MvpMatrix  mvp矩阵

//a_Position 顶点坐标

vec4 UnityObjectToClipPos()

{

#ifdef GPU_INSTANCE     

return a_MvpMatrix * a_Position;    

#else       

return u_MvpMatrix * a_Position;    

#endif      

}

vec3 UnityObjectToWorldNormal(vec3 normal)

{

return normalize(normal*mat3(u_WorldMat));

}