vertOut vert(appdata_base v) {
vertOut o;
o.pos = mul (UNITY_MATRIX_MVP, v.vertex);
//ComputeScreenPos将返回片段着色器的屏幕位置scrPos
o.scrPos = ComputeScreenPos(o.pos);
return o;
}
#ifdef SOFTPARTICLES_ON //开启软边效果o.projPos = ComputeScreenPos (o.vertex);
COMPUTE_EYEDEPTH(o.projPos.z);
#endif