# BlendOp > Blend operation. ## Definition * **Type:** Enum * **Namespace:** [UnityEngine.Rendering](/engine/6000.0/script-reference/unityengine/rendering.md) * **Assembly:** UnityEngine.CoreModule ```csharp public enum BlendOp ``` ## Remarks The blend operation that is used to combine the pixel shader output with the render target. This can be passed through Material.SetInt() to change the blend operation during runtime. Note that the logical operations are only supported in Gamma (non-sRGB) colorspace, on DX11.1 hardware running on DirectX 11.1 runtime. Advanced OpenGL blend operations are supported only on hardware supporting either GL\_KHR\_blend\_equation\_advanced or GL\_NV\_blend\_equation\_advanced and may require use of [GL.RenderTargetBarrier](/engine/6000.0/script-reference/unityengine/gl/rendertargetbarrier.md). In addition, the shaders that are used with the advanced blend operations must have a UNITY\_REQUIRE\_ADVANDED\_BLEND(mode) declaration in the shader code where mode is one of the blend operations or "all\_equations" for supporting all advanced blend operations (see the KHR\_blend\_equation\_advanced spec for other values). ## Fields | Value | Description | | ----------------------------------------------------------------------------------------------------------- | ---------------------------------------------- | | [Add](/engine/6000.0/script-reference/unityengine/rendering/blendop/add.md) | Add (s + d). | | [ColorBurn](/engine/6000.0/script-reference/unityengine/rendering/blendop/colorburn.md) | Color burn (Advanced OpenGL blending). | | [ColorDodge](/engine/6000.0/script-reference/unityengine/rendering/blendop/colordodge.md) | Color dodge (Advanced OpenGL blending). | | [Darken](/engine/6000.0/script-reference/unityengine/rendering/blendop/darken.md) | Darken (Advanced OpenGL blending). | | [Difference](/engine/6000.0/script-reference/unityengine/rendering/blendop/difference.md) | Difference (Advanced OpenGL blending). | | [Exclusion](/engine/6000.0/script-reference/unityengine/rendering/blendop/exclusion.md) | Exclusion (Advanced OpenGL blending). | | [HardLight](/engine/6000.0/script-reference/unityengine/rendering/blendop/hardlight.md) | Hard light (Advanced OpenGL blending). | | [HSLColor](/engine/6000.0/script-reference/unityengine/rendering/blendop/hslcolor.md) | HSL color (Advanced OpenGL blending). | | [HSLHue](/engine/6000.0/script-reference/unityengine/rendering/blendop/hslhue.md) | HSL Hue (Advanced OpenGL blending). | | [HSLLuminosity](/engine/6000.0/script-reference/unityengine/rendering/blendop/hslluminosity.md) | HSL luminosity (Advanced OpenGL blending). | | [HSLSaturation](/engine/6000.0/script-reference/unityengine/rendering/blendop/hslsaturation.md) | HSL saturation (Advanced OpenGL blending). | | [Lighten](/engine/6000.0/script-reference/unityengine/rendering/blendop/lighten.md) | Lighten (Advanced OpenGL blending). | | [LogicalAnd](/engine/6000.0/script-reference/unityengine/rendering/blendop/logicaland.md) | Logical AND (s & d) (D3D11.1 only). | | [LogicalAndInverted](/engine/6000.0/script-reference/unityengine/rendering/blendop/logicalandinverted.md) | Logical inverted AND (!s & d) (D3D11.1 only). | | [LogicalAndReverse](/engine/6000.0/script-reference/unityengine/rendering/blendop/logicalandreverse.md) | Logical reverse AND (s & !d) (D3D11.1 only). | | [LogicalClear](/engine/6000.0/script-reference/unityengine/rendering/blendop/logicalclear.md) | Logical Clear (0). | | [LogicalCopy](/engine/6000.0/script-reference/unityengine/rendering/blendop/logicalcopy.md) | Logical Copy (s) (D3D11.1 only). | | [LogicalCopyInverted](/engine/6000.0/script-reference/unityengine/rendering/blendop/logicalcopyinverted.md) | Logical inverted Copy (!s) (D3D11.1 only). | | [LogicalEquivalence](/engine/6000.0/script-reference/unityengine/rendering/blendop/logicalequivalence.md) | Logical Equivalence !(s XOR d) (D3D11.1 only). | | [LogicalInvert](/engine/6000.0/script-reference/unityengine/rendering/blendop/logicalinvert.md) | Logical Inverse (!d) (D3D11.1 only). | | [LogicalNand](/engine/6000.0/script-reference/unityengine/rendering/blendop/logicalnand.md) | Logical NAND !(s & d). D3D11.1 only. | | [LogicalNoop](/engine/6000.0/script-reference/unityengine/rendering/blendop/logicalnoop.md) | Logical No-op (d) (D3D11.1 only). | | [LogicalNor](/engine/6000.0/script-reference/unityengine/rendering/blendop/logicalnor.md) | Logical NOR !(s \| d) (D3D11.1 only). | | [LogicalOr](/engine/6000.0/script-reference/unityengine/rendering/blendop/logicalor.md) | Logical OR (s \| d) (D3D11.1 only). | | [LogicalOrInverted](/engine/6000.0/script-reference/unityengine/rendering/blendop/logicalorinverted.md) | Logical inverted OR (!s \| d) (D3D11.1 only). | | [LogicalOrReverse](/engine/6000.0/script-reference/unityengine/rendering/blendop/logicalorreverse.md) | Logical reverse OR (s \| !d) (D3D11.1 only). | | [LogicalSet](/engine/6000.0/script-reference/unityengine/rendering/blendop/logicalset.md) | Logical SET (1) (D3D11.1 only). | | [LogicalXor](/engine/6000.0/script-reference/unityengine/rendering/blendop/logicalxor.md) | Logical XOR (s XOR d) (D3D11.1 only). | | [Max](/engine/6000.0/script-reference/unityengine/rendering/blendop/max.md) | Max. | | [Min](/engine/6000.0/script-reference/unityengine/rendering/blendop/min.md) | Min. | | [Multiply](/engine/6000.0/script-reference/unityengine/rendering/blendop/multiply.md) | Multiply (Advanced OpenGL blending). | | [Overlay](/engine/6000.0/script-reference/unityengine/rendering/blendop/overlay.md) | Overlay (Advanced OpenGL blending). | | [ReverseSubtract](/engine/6000.0/script-reference/unityengine/rendering/blendop/reversesubtract.md) | Reverse subtract. | | [Screen](/engine/6000.0/script-reference/unityengine/rendering/blendop/screen.md) | Screen (Advanced OpenGL blending). | | [SoftLight](/engine/6000.0/script-reference/unityengine/rendering/blendop/softlight.md) | Soft light (Advanced OpenGL blending). | | [Subtract](/engine/6000.0/script-reference/unityengine/rendering/blendop/subtract.md) | Subtract. |