构造函数
方法
_getBlendFactor
_getBlendFactor( factor: BlendFactor,): | 0 | 1 | 768 | 769 | 770 | 771 | 772 | 773 | 774 | 775 | 776 | 32769 | 32770 返回 0 | 1 | 768 | 769 | 770 | 771 | 772 | 773 | 774 | 775 | 776 | 32769 | 32770
_getGLFrontfaceFactor
_getGLFrontfaceFactor(cullmode: CullMode): 2304 | 2305
setStencilMask
setStencilMask(value: boolean): void
intance glRenderState