这些函数设置当前颜色：
- glColor3b
- glColor3d
- glColor3f
- glColor3i
- glColor3s
- glColor3ub
- glColor3ui
- glColor3us
- glColor4b
- glColor4d
- glColor4f
- glColor4i
- glColor4s
- glColor4ub
- glColor4ui
- glColor4us
- glColor3bv
- glColor3dv
- glColor3fv
- glColor3iv
- glColor3sv
- glColor3ubv
- glColor3uiv
- glColor3usv
- glColor4bv
- glColor4dv
- glColor4fv
- glColor4iv
- glColor4sv
- glColor4ubv
- glColor4uiv
- glColor4usv