public override void SetBlendMode(BlendMode blendMode)
{
if (currentBlendMode == blendMode)
{
return;
}
currentBlendMode = blendMode;
switch (blendMode)
{
case BlendMode.Opaque:
GLCore.Disable(EnableCap.Blend);
break;
case BlendMode.Normal:
GLCore.Enable(EnableCap.Blend);
GLCore.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
GLCore.BlendEquation(BlendEquationMode.FuncAdd);
break;
case BlendMode.AlphaTest:
GLCore.Disable(EnableCap.Blend);
GLCore.Enable(EnableCap.AlphaTest);
break;
case BlendMode.Additive:
GLCore.Enable(EnableCap.Blend);
GLCore.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.One);
GLCore.BlendEquation(BlendEquationMode.FuncAdd);
break;
case BlendMode.Subtractive:
GLCore.Enable(EnableCap.Blend);
GLCore.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.One);
GLCore.BlendEquation(BlendEquationMode.FuncReverseSubtract);
break;
case BlendMode.LightEffect:
GLCore.Enable(EnableCap.Blend);
GLCore.BlendFunc(BlendingFactorSrc.DstColor, BlendingFactorDest.One);
GLCore.BlendEquation(BlendEquationMode.FuncAdd);
break;
}
}