Identifies whether front- and/or back-facing triangles are culled.
| Member | Value | Description |
|---|---|---|
| eStkGraphicsECullFaceFront | 0 | Front-facing triangles are culled. |
| eStkGraphicsECullFaceBack | 1 | Back-facing triangles are culled. |
| eStkGraphicsECullFaceFrontAndBack | 2 | Both front- and back-facing triangles are culled. Therefore, no triangles are rendered. |
| eStkGraphicsECullFaceNeither | 3 | No triangles are culled. |





