Ogre-left-hand Coordinate System

Get used to DX,

Today, the manualObject of Ogre is used for Box selection,

LineList no problem,

However, TriangleFan is a strange phenomenon,

For example, two diagonal vertices of AB generate a triangle,

Only B is displayed in the upper right or lower left of,

Puzzling,

In the end, only when the paper is marked,

Ogre is the default left-hand coordinate system!

For example, the original index is 0 1 2 3.

Change it to 0 3 2 1,

Or simply set it in the material script.

Cull_hardware none