If the list of requirements (or the equivalent target value) does not already include these values, Unity displays a warning message when it compiles the shader, to indicate that it has added these requirements. Specifying GPU features or a shader model To avoid seeing this warning message, explicitly add the requirements or use an appropriate target value in your code. For example: #pragma require integers mrt8 To specify required features, use the #pragma require directive, followed by a list of space-delimited values. This means that the requirement applies only to variants that are used when any of the given keywords are enabled.įor example: #pragma require integers mrt8 : EXAMPLE_KEYWORD OTHER_EXAMPLE_KEYWORD You can also use the #pragma require directive followed by a colon and a list of space-delimited shader keywords. You can use multiple #pragma require lines. #pragma require integers mrt8 : EXAMPLE_KEYWORD In this example, the shader requires integers in all cases, and mrt8 if EXAMPLE_KEYWORD is enabled. To specify a shader model, use #pragma target directive. This means that the requirement applies only to variants that are used when any of the given keywords are enabled.įor example: #pragma target 4.0 EXAMPLE_KEYWORD OTHER_EXAMPLE_KEYWORD You can also use the #pragma target directive followed by a list of space-delimited shader keywords. Note: The syntax for specifying keywords for #pragma require and #pragma target is slightly different. When you specify keywords for #pragma require, you use a colon. When you specify keywords for #pragma target, you do not use a colon.

Here is the list of shader models that Unity uses, and the combination of #pragma require values that each corresponds to. Note: Unity’s shader models are similar to DirectX shader models and OpenGL version requirements, but they do not correspond exactly. Read the descriptions carefully to ensure that you understand the differences. Limited amount of arithmetic and texture instructions 8 interpolators no vertex texture sampling no derivatives in fragment shaders no explicit LOD texture sampling. Works on all platforms supported by Unity.Īlmost the same as 3.0, but with only 8 interpolators, and no explicit LOD texture sampling. Might work on some OpenGL ES 2.0 devices, depending on driver extensions and features. Interpolators15 mrt4 integers 2darray instancingĮquivalent to DirectX shader model 4.0, but without the requirement to support 8 MRTs. This is the highest OpenGL level supported on a Mac.

Metal (if no geometry stage is defined, and no hull or domain stage is defined)Įquivalent to DirectX shader model 5.0, but without the requirement to support 32 interpolators or cubemap arrays.Ĭompute randomwrite msaatex tesshw tessellationįor information on shader model support for console platforms, see the platform-specific documentation.

Pixel shader 4.0 download