Setting up BlendStates

BlendStateSetup

            // blend supporting transparency using Premultiplied Alpha
            BlendState blendStateTransparencyPMA = new BlendState(device3d,
            new BlendStateDescription()
            {
                AlphaToCoverageEnable = false,
                IndependentBlendEnable = false,
            });
            blendStateTransparencyPMA.Description.RenderTarget[0] = new RenderTargetBlendDescription()
            {
                AlphaBlendOperation = BlendOperation.Add,
                IsBlendEnabled = true,
                RenderTargetWriteMask = ColorWriteMaskFlags.All,
                BlendOperation = BlendOperation.Add,
                SourceBlend = BlendOption.One,
                DestinationBlend = BlendOption.InverseSourceAlpha,
                SourceAlphaBlend = BlendOption.One,
                DestinationAlphaBlend = BlendOption.One
            };
            blendStateTransparencyPMA.DebugName = "TransparencyPMA";
            this.Add(blendStateTransparencyPMA);

            // blend supporting transparency
            BlendState blendStateTransparency = new BlendState(device3d,
            new BlendStateDescription()
            {
                AlphaToCoverageEnable = false,
                IndependentBlendEnable = false,
            });
            blendStateTransparency.Description.RenderTarget[0] = new RenderTargetBlendDescription()
            {
                AlphaBlendOperation = BlendOperation.Add,
                IsBlendEnabled = true,
                RenderTargetWriteMask = ColorWriteMaskFlags.All,
                BlendOperation = BlendOperation.Add,
                SourceBlend = BlendOption.SourceAlpha,
                DestinationBlend = BlendOption.InverseSourceAlpha,
                SourceAlphaBlend = BlendOption.One,
                DestinationAlphaBlend = BlendOption.One
            };
            blendStateTransparency.DebugName = "Transparency";
            this.Add(blendStateTransparency);

            // blend additive
            BlendState blendStateAdditive = new BlendState(device3d,
                new BlendStateDescription()
                {
                    AlphaToCoverageEnable = false,
                    IndependentBlendEnable = false,
                });
            blendStateAdditive.Description.RenderTarget[0] = new RenderTargetBlendDescription()
            {
                AlphaBlendOperation = BlendOperation.Add,
                IsBlendEnabled = true,
                RenderTargetWriteMask = ColorWriteMaskFlags.All,
                BlendOperation = BlendOperation.Add,
                SourceBlend = BlendOption.One,
                DestinationBlend = BlendOption.One,
                SourceAlphaBlend = BlendOption.One,
                DestinationAlphaBlend = BlendOption.One
            };
            blendStateAdditive.DebugName = "Additive";
            this.Add(blendStateAdditive);