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Add Depth compare / shadow sampler support. Officially this is only supported in glsl3 shaders.

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- Add Texture:setDepthSampleMode(comparemode). Only works on textures with depth pixel formats. A texture with the depth sample mode set will only work with a depth sampler.
- Add DepthImage, DepthArrayImage, and DepthCubeImage sampler keywords to glsl3.

--HG--
branch : minor
This commit is contained in:
Alex Szpakowski
2017-04-12 20:26:06 -03:00
parent 0001b4695e
commit a0ef2ac28b
25 changed files with 444 additions and 151 deletions
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src/common/pixelformat.h
+6 -1
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@@ -115,10 +115,15 @@ bool getConstant(const char *in, PixelFormat &out);
bool isPixelFormatCompressed(PixelFormat format);
/**
* Gets whether the specified pixel format is a depth/stencil type.
* Gets whether the specified pixel format is a depth or stencil type.
**/
bool isPixelFormatDepthStencil(PixelFormat format);
/**
* Gets whether the specified pixel format is a depth type.
**/
bool isPixelFormatDepth(PixelFormat format);
/**
* Gets the size in bytes of the specified pixel format.
* NOTE: Currently returns 0 for compressed formats.