Renderer platform for shaders for W8/WP8

Unity Engine
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1

Hello,

We use conditionnal compilation for shaders targeted for different platforms, we highly optimize shaders depending on the platform and we can’t use the same shader that we use for d3d9/d3d11 since it’s the huge pc version, we’d like to know the rendering platform for shader instruction exclude_renderers / only_renderers for W8 / WP8 other than d3d9/d3d11, if not is there a way to have something like d3d_w8 / d3d_wp8 in future version ?

Thanks.

2

For Windows Store Apps and Windows Phone 8 two types of shaders are used:

  • d3d11
  • d3d11_9x

(You can see that by opening precompiled shader version)

Depending on available DirectX 11 feature level - d3d11 or d3d11_9x is used.
As far as I recall, if available feature level is >= 10.0 d3d11 shaders are used, if not - d3d11_9x used.

Here are some statistics:

  • Most PCs, Surface Pro, use DX11 feature level 11.0 (d3d11 shaders will be used)
  • ARM tablets (like Surface RT, and other) use feature level 9.1 or 9.3 (d3d11_9x shaders are used)
  • Windows Phone 8 use feature level 9.3 (d3d11_9x shaders are used)

You can say what feature level is used by looking at the log shown in Visual Studio’s Output window, or UnityPlayer.log

As for your problem, maybe you can shader level of detail feature - Unity - Manual: ShaderLab: assigning a LOD value to a SubShader ?

Cheers

3

My bad i forgot the lod feature but i want to create the shader as generic as possible (for selling as the asset store, i think i will use d3d11_9x thank you very much !)