Based on the blend mode & rendermode, this will determine which geometry renderer to use and will set it up
so after this is called, you can simply make a call to render the geometry and you will
have the correct blend mode
Based on therendermode, this will determine which geometry renderer to use and will set it up
so after this is called, you can simply make a call to render the geometry and you will
have the correct render mode
This pointInTriangle checks if the point is on the inside of all the line segments of the triangle
It is slightly faster than isPointInTriangleByAngles