Alejandro Piñeiro d33bc6c75e shadowmappping: check if depth format supports LINEAR filtering ... The test uses the format VK_FORMAT_D16_UNORM for the shadow map, and it sets unconditionally VK_FILTER_LINEAR when using it. But by spec, it is not mandatory that format to support filtering. Explained here: https://www.khronos.org/registry/vulkan/specs/1.2/html/chap32.html table 51, VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT. This commit checks if that flag is present with that format to decide between LINEAR (the default value) or NEAREST (if LINEAR is not supported). Adds a auxiliar method on VulkanTools just in case it could be useful for other demos. This is not detected by the Validation Layers, but raise an assertion with one of the development tools we use to implement the Mesa v3dv driver (rpi4 vulkan driver).		2020-06-20 00:08:13 +02:00
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shadowmapping.cpp	shadowmappping: check if depth format supports LINEAR filtering	2020-06-20 00:08:13 +02:00