MyGame.HPBillboardSystem.drawTransparentPixels C# (CSharp) Method

        void drawTransparentPixels()
        {
            graphicsDevice.DepthStencilState = DepthStencilState.DepthRead;

            effect.Parameters["AlphaTest"].SetValue(true);
            effect.Parameters["AlphaTestGreater"].SetValue(false);

            drawBillboards();
        }