GraphicsDeviceFeatures

Remarks

A flat record struct rather than a query API, because every one of these is fixed for the life of the device and a call per question is a call per frame in code that asks in a loop. Copied by value, compared by value, and cheap enough to keep in a hot struct.

Everything here is capability-gated with a documented fallback, never a hard requirement — except the floor below, which is stated once and enforced at device selection with a readable error rather than discovered as a crash.

Minimum spec: Vulkan 1.1, D3D12 feature level 11_0, GLES 3.0, or WebGL2. Below that Vixen does not run.

Fields and properties (35)

• public bool HasCompute

  Compute shaders and dispatches.

• public bool HasGeometryShaders

  Geometry shaders.

• public bool HasTessellation

  Tessellation control and evaluation shaders.

• public bool HasMeshShaders

  Task and mesh shaders.

• public bool HasBindless

  A shader may index an unbounded descriptor array.

• public bool HasMultiDrawIndirect

  One indirect call may issue many draws.

• public bool HasDrawIndirectCount

  And the number of them may come from a buffer rather than from the host.

• public bool HasTimelineSemaphores

  Timeline semaphores, rather than binary ones.

• public bool HasAsyncCompute

  A compute queue that runs in parallel with graphics.

• public bool HasAsyncTransfer

  A transfer queue that runs in parallel with both.

• public bool HasSparseResources

  Sparse (partially resident) resources.

• public bool HasRayTracing

  Acceleration structures and ray queries — doc 19 § L6's genuinely new RHI row.

• public bool HasFloat64

  Double-precision floats in shaders.

• public bool HasInt64Atomics

  Atomic operations on 64-bit integers in a storage buffer.

• public bool HasSubgroupOperations

  Subgroup (wave) operations.

• public bool HasDynamicRendering

  Rendering without render-pass and framebuffer objects.

• public bool HasDepthClamp

  Depth values may be clamped rather than clipped.

• public bool HasWireframe

  Triangles may be drawn as wireframe.

• public bool HasAnisotropicFiltering

  Anisotropic sampling.

• public bool HasIndependentBlend

  Each colour attachment may have its own blend state.

• public bool HasPipelineStatistics

  Pipeline-statistics queries.

• public bool HasTimestampQueries

  Timestamp queries, which is what a GPU timeline is made of.

• public float TimestampPeriod

  Nanoseconds per Timestamp tick. Zero without HasTimestampQueries.

• public bool HasUnifiedMemory

  The CPU and GPU share one memory pool.

• public int MaxTextureSize

  The largest 2D texture edge, in texels.

• public int MaxTextureArrayLayers

  The largest array texture layer count.

• public int MaxColourAttachments

  The largest colour attachment count in one pass.

• public int MaxVertexBuffers

  The largest bound vertex buffer count.

• public int MaxDescriptorSets

  The largest bound descriptor set count.

• public int MaxPushConstantSize

  The largest push-constant block, in bytes.

• public int MaxBindlessDescriptors

  How many descriptors one unbounded binding may hold. Zero without HasBindless.

• public float MaxAnisotropy

  The largest anisotropy a sampler may ask for.

• public (int X, int Y, int Z) MaxComputeWorkgroupSize

  The largest compute workgroup, per dimension.

• public int SupportedSampleCounts

  Sample counts the device supports for colour attachments, as a bit mask of counts.

• public static GraphicsDeviceFeatures Minimum

  What a backend with nothing but the floor reports: the minimum spec and no more.

Methods (1)

• public bool SupportsSampleCount(int samples)

  Whether a sample count is supported.

Used by (51, showing 40)

• AccelerationStructureDeviceTestsVixen.Graphics.Golden.Tests
• AccelerationStructureTestsVixen.Graphics.Null.Tests
• BindlessFrameTestsVixen.Rendering.Tests
• BindlessSetLayoutTestsVixen.Shaders.Tests
• BindlessTableVixen.Graphics
• BindlessTableDeviceTestsVixen.Graphics.Golden.Tests
• BindlessTableTestsVixen.Graphics.Tests
• CompilesVixen.Rendering.Tests
• DescriptorSetLayoutDescriptionVixen.Graphics
• DrawCompactionTestsVixen.Rendering.Tests
• GlAdapterVixen.Graphics.OpenGL
• GlDeviceVixen.Graphics.OpenGL
• GlDeviceTestsVixen.Graphics.OpenGL.Tests
• GlProfilesVixen.Graphics.OpenGL
• GpuClusterSoftwareRasterVixen.Rendering
• GpuClusterVisibilityVixen.Rendering
• GpuCullingVixen.Rendering
• GpuDrawArgumentsVixen.Rendering
• GpuDrivenCompositorTestsVixen.Rendering.Tests
• GpuVisibilityGroupTestsVixen.Rendering.Tests
• GraphicsDeviceFeaturesTestsVixen.Graphics.Tests
• IGraphicsAdapterVixen.Graphics
• IGraphicsDeviceVixen.Graphics
• MaterialRenderFeatureVixen.Rendering
• NativeWebGpuTestsVixen.Graphics.WebGPU.Tests
• NullAdapterVixen.Graphics.Null
• NullDeviceVixen.Graphics.Null
• NullDeviceOptionsVixen.Graphics.Null
• NullDeviceTestsVixen.Graphics.Null.Tests
• QueryPoolTestsVixen.Graphics.Null.Tests
• TransformRecordTestsVixen.Rendering.Tests
• TransformRenderFeatureVixen.Rendering
• VirtualGeometryGoldenTestsVixen.Graphics.Golden.Tests
• VulkanAdapterVixen.Graphics.Vulkan
• VulkanCommandListVixen.Graphics.Vulkan
• VulkanDeviceVixen.Graphics.Vulkan
• VulkanDeviceTestsVixen.Graphics.Vulkan.Tests
• VulkanFeatureTestsVixen.Graphics.Vulkan.Tests
• VulkanFeaturesVixen.Graphics.Vulkan
• VulkanFormatTestsVixen.Graphics.Vulkan.Tests