{-# language CPP #-} -- | = Name -- -- VK_EXT_conservative_rasterization - device extension -- -- == VK_EXT_conservative_rasterization -- -- [__Name String__] -- @VK_EXT_conservative_rasterization@ -- -- [__Extension Type__] -- Device extension -- -- [__Registered Extension Number__] -- 102 -- -- [__Revision__] -- 1 -- -- [__Extension and Version Dependencies__] -- -- - Requires Vulkan 1.0 -- -- - Requires @VK_KHR_get_physical_device_properties2@ -- -- [__Contact__] -- -- - Piers Daniell -- > > -- -- == Other Extension Metadata -- -- [__Last Modified Date__] -- 2020-06-09 -- -- [__Interactions and External Dependencies__] -- -- - This extension requires -- -- if the -- 'PhysicalDeviceConservativeRasterizationPropertiesEXT'::@fullyCoveredFragmentShaderInputVariable@ -- feature is used. -- -- - This extension requires -- if -- the -- 'PhysicalDeviceConservativeRasterizationPropertiesEXT'::@conservativeRasterizationPostDepthCoverage@ -- feature is used. -- -- - This extension provides API support for -- -- if the -- 'PhysicalDeviceConservativeRasterizationPropertiesEXT'::@fullyCoveredFragmentShaderInputVariable@ -- feature is used. -- -- [__Contributors__] -- -- - Daniel Koch, NVIDIA -- -- - Daniel Rakos, AMD -- -- - Jeff Bolz, NVIDIA -- -- - Slawomir Grajewski, Intel -- -- - Stu Smith, Imagination Technologies -- -- == Description -- -- This extension adds a new rasterization mode called conservative -- rasterization. There are two modes of conservative rasterization; -- overestimation and underestimation. -- -- When overestimation is enabled, if any part of the primitive, including -- its edges, covers any part of the rectangular pixel area, including its -- sides, then a fragment is generated with all coverage samples turned on. -- This extension allows for some variation in implementations by -- accounting for differences in overestimation, where the generating -- primitive size is increased at each of its edges by some sub-pixel -- amount to further increase conservative pixel coverage. Implementations -- can allow the application to specify an extra overestimation beyond the -- base overestimation the implementation already does. It also allows -- implementations to either cull degenerate primitives or rasterize them. -- -- When underestimation is enabled, fragments are only generated if the -- rectangular pixel area is fully covered by the generating primitive. If -- supported by the implementation, when a pixel rectangle is fully covered -- the fragment shader input variable builtin called FullyCoveredEXT is set -- to true. The shader variable works in either overestimation or -- underestimation mode. -- -- Implementations can process degenerate triangles and lines by either -- discarding them or generating conservative fragments for them. -- Degenerate triangles are those that end up with zero area after the -- rasterizer quantizes them to the fixed-point pixel grid. Degenerate -- lines are those with zero length after quantization. -- -- == New Structures -- -- - Extending -- 'Vulkan.Core11.Promoted_From_VK_KHR_get_physical_device_properties2.PhysicalDeviceProperties2': -- -- - 'PhysicalDeviceConservativeRasterizationPropertiesEXT' -- -- - Extending -- 'Vulkan.Core10.Pipeline.PipelineRasterizationStateCreateInfo': -- -- - 'PipelineRasterizationConservativeStateCreateInfoEXT' -- -- == New Enums -- -- - 'ConservativeRasterizationModeEXT' -- -- == New Bitmasks -- -- - 'PipelineRasterizationConservativeStateCreateFlagsEXT' -- -- == New Enum Constants -- -- - 'EXT_CONSERVATIVE_RASTERIZATION_EXTENSION_NAME' -- -- - 'EXT_CONSERVATIVE_RASTERIZATION_SPEC_VERSION' -- -- - Extending 'Vulkan.Core10.Enums.StructureType.StructureType': -- -- - 'Vulkan.Core10.Enums.StructureType.STRUCTURE_TYPE_PHYSICAL_DEVICE_CONSERVATIVE_RASTERIZATION_PROPERTIES_EXT' -- -- - 'Vulkan.Core10.Enums.StructureType.STRUCTURE_TYPE_PIPELINE_RASTERIZATION_CONSERVATIVE_STATE_CREATE_INFO_EXT' -- -- == Version History -- -- - Revision 1.1, 2020-09-06 (Piers Daniell) -- -- - Add missing SPIR-V and GLSL dependencies. -- -- - Revision 1, 2017-08-28 (Piers Daniell) -- -- - Internal revisions -- -- == See Also -- -- 'ConservativeRasterizationModeEXT', -- 'PhysicalDeviceConservativeRasterizationPropertiesEXT', -- 'PipelineRasterizationConservativeStateCreateFlagsEXT', -- 'PipelineRasterizationConservativeStateCreateInfoEXT' -- -- == Document Notes -- -- For more information, see the -- -- -- This page is a generated document. Fixes and changes should be made to -- the generator scripts, not directly. module Vulkan.Extensions.VK_EXT_conservative_rasterization ( PhysicalDeviceConservativeRasterizationPropertiesEXT , PipelineRasterizationConservativeStateCreateInfoEXT ) where import Vulkan.CStruct (FromCStruct) import Vulkan.CStruct (ToCStruct) import Data.Kind (Type) data PhysicalDeviceConservativeRasterizationPropertiesEXT instance ToCStruct PhysicalDeviceConservativeRasterizationPropertiesEXT instance Show PhysicalDeviceConservativeRasterizationPropertiesEXT instance FromCStruct PhysicalDeviceConservativeRasterizationPropertiesEXT data PipelineRasterizationConservativeStateCreateInfoEXT instance ToCStruct PipelineRasterizationConservativeStateCreateInfoEXT instance Show PipelineRasterizationConservativeStateCreateInfoEXT instance FromCStruct PipelineRasterizationConservativeStateCreateInfoEXT