Crate wgpu

A cross-platform graphics and compute library based on WebGPU.

To start using the API, create an Instance.

Feature flags

Backends

⚠️ WIP: Not all backends can be manually configured today. On Windows & Linux the Vulkan & GLES backends are always enabled. See #3514 for more details.

• dx12 (enabled by default) — Enables the DX12 backend on Windows.
• metal (enabled by default) — Enables the Metal backend on macOS & iOS.
• webgpu (enabled by default) — Enables the WebGPU backend on Wasm. Disabled when targeting emscripten.
• angle — Enables the GLES backend via ANGLE on macOS.
• vulkan-portability — Enables the Vulkan backend on macOS & iOS.
• webgl — Enables the GLES backend on Wasm.
  • ⚠️ WIP: Currently will also enable GLES dependencies on any other targets.

Note: In the documentation, if you see that an item depends on a backend, it means that the item is only available when that backend is enabled and the backend is supported on the current platform.

Shading language support

• wgsl (enabled by default) — Enable accepting WGSL shaders as input.
• spirv — Enable accepting SPIR-V shaders as input.
• glsl — Enable accepting GLSL shaders as input.
• naga-ir — Enable accepting Naga IR shaders as input.

Logging & Tracing

The following features do not have any effect on the WebGPU backend.

• strict_asserts — Apply run-time checks, even in release builds. These are in addition to the validation carried out at public APIs in all builds.
• api_log_info — Log all API entry points at info instead of trace level.
• trace — Allow writing of trace capture files. See Adapter::request_device.
• replay — Allow deserializing of trace capture files that were written with the trace feature. To replay a trace file use the wgpu player.

Other

• fragile-send-sync-non-atomic-wasm — Implement Send and Sync on Wasm, but only if atomics are not enabled.

  WebGL/WebGPU objects can not be shared between threads. However, it can be useful to artificially mark them as Send and Sync anyways to make it easier to write cross-platform code. This is technically very unsafe in a multithreaded environment, but on a wasm binary compiled without atomics we know we are definitely not in a multithreaded environment.

Feature Aliases

These features aren’t actually features on the crate itself, but a convenient shorthand for complicated cases.

• wgpu_core — Enabled when there is any non-webgpu backend enabled on the platform.
• naga –– Enabled when any non-wgsl shader input is enabled.

Modules

• core
  Re-export of our wgpu-core dependency.
• hal
  Re-export of our wgpu-hal dependency.
• naga
  Re-export of our naga dependency.
• rwh
  Re-export of our raw-window-handle dependency.
• util
  Utility structures and functions that are built on top of the main wgpu API.

Macros

• include_spirv_raw
  Macro to load raw SPIR-V data statically, for use with Features::SPIRV_SHADER_PASSTHROUGH.
• include_wgsl
  Macro to load a WGSL module statically.
• vertex_attr_array
  Macro to produce an array of VertexAttribute.

Structs

• Adapter
  Handle to a physical graphics and/or compute device.
• AdapterInfo
  Information about an adapter.
• Backends
  Represents the backends that wgpu will use.
• BindGroup
  Handle to a binding group.
• BindGroupDescriptor
  Describes a group of bindings and the resources to be bound.
• BindGroupEntry
  An element of a BindGroupDescriptor, consisting of a bindable resource and the slot to bind it to.
• BindGroupLayout
  Handle to a binding group layout.
• BindGroupLayoutDescriptor
  Describes a BindGroupLayout.
• BindGroupLayoutEntry
  Describes a single binding inside a bind group.
• BlendComponent
  Describes a blend component of a BlendState.
• BlendState
  Describe the blend state of a render pipeline, within ColorTargetState.
• Buffer
  Handle to a GPU-accessible buffer.
• BufferAsyncError
  Error occurred when trying to async map a buffer.
• BufferBinding
  Describes the segment of a buffer to bind.
• BufferSlice
  Slice into a Buffer.
• BufferUsages
  Different ways that you can use a buffer.
• BufferView
  Read only view into a mapped buffer.
• BufferViewMut
  Write only view into mapped buffer.
• Color
  RGBA double precision color.
• ColorTargetState
  Describes the color state of a render pipeline.
• ColorWrites
  Color write mask. Disabled color channels will not be written to.
• CommandBuffer
  Handle to a command buffer on the GPU.
• CommandBufferDescriptor
  Describes a CommandBuffer.
• CommandEncoder
  Encodes a series of GPU operations.
• ComputePass
  In-progress recording of a compute pass.
• ComputePassDescriptor
  Describes the attachments of a compute pass.
• ComputePassTimestampWrites
  Describes the timestamp writes of a compute pass.
• ComputePipeline
  Handle to a compute pipeline.
• ComputePipelineDescriptor
  Describes a compute pipeline.
• CreateSurfaceError
  Instance::create_surface() or a related function failed.
• DepthBiasState
  Describes the biasing setting for the depth target.
• DepthStencilState
  Describes the depth/stencil state in a render pipeline.
• Device
  Open connection to a graphics and/or compute device.
• DownlevelCapabilities
  Lists various ways the underlying platform does not conform to the WebGPU standard.
• DownlevelFlags
  Binary flags listing features that may or may not be present on downlevel adapters.
• Extent3d
  Extent of a texture related operation.
• Features
  Features that are not guaranteed to be supported.
• FragmentState
  Describes the fragment processing in a render pipeline.
• Id
  Opaque globally-unique identifier
• ImageCopyBufferBase
  View of a buffer which can be used to copy to/from a texture.
• ImageCopyTextureBase
  View of a texture which can be used to copy to/from a buffer/texture.
• ImageCopyTextureTaggedBase
  View of a texture which can be used to copy to a texture, including color space and alpha premultiplication information.
• ImageDataLayout
  Layout of a texture in a buffer’s memory.
• ImageSubresourceRange
  Subresource range within an image
• Instance
  Context for all other wgpu objects. Instance of wgpu.
• InstanceDescriptor
  Options for creating an instance.
• InstanceFlags
  Instance debugging flags.
• Limits
  Represents the sets of limits an adapter/device supports.
• MultisampleState
  Describes the multi-sampling state of a render pipeline.
• Operations
  Pair of load and store operations for an attachment aspect.
• Origin2d
  Origin of a copy from a 2D image.
• Origin3d
  Origin of a copy to/from a texture.
• PipelineLayout
  Handle to a pipeline layout.
• PipelineLayoutDescriptor
  Describes a PipelineLayout.
• PipelineStatisticsTypes
  Flags for which pipeline data should be recorded.
• PresentationTimestamp
  Nanosecond timestamp used by the presentation engine.
• PrimitiveState
  Describes the state of primitive assembly and rasterization in a render pipeline.
• PushConstantRange
  A range of push constant memory to pass to a shader stage.
• QuerySet
  Handle to a query set.
• Queue
  Handle to a command queue on a device.
• QueueWriteBufferView
  A write-only view into a staging buffer.
• RenderBundle
  Pre-prepared reusable bundle of GPU operations.
• RenderBundleDepthStencil
  Describes the depth/stencil attachment for render bundles.
• RenderBundleEncoder
  Encodes a series of GPU operations into a reusable “render bundle”.
• RenderBundleEncoderDescriptor
  Describes a RenderBundleEncoder.
• RenderPass
  In-progress recording of a render pass: a list of render commands in a CommandEncoder.
• RenderPassColorAttachment
  Describes a color attachment to a RenderPass.
• RenderPassDepthStencilAttachment
  Describes a depth/stencil attachment to a RenderPass.
• RenderPassDescriptor
  Describes the attachments of a render pass.
• RenderPassTimestampWrites
  Describes the timestamp writes of a render pass.
• RenderPipeline
  Handle to a rendering (graphics) pipeline.
• RenderPipelineDescriptor
  Describes a render (graphics) pipeline.
• RequestAdapterOptionsBase
  Options for requesting adapter.
• RequestDeviceError
  Requesting a device from an Adapter failed.
• Sampler
  Handle to a sampler.
• SamplerDescriptor
  Describes a Sampler.
• ShaderModule
  Handle to a compiled shader module.
• ShaderModuleDescriptor
  Descriptor for use with Device::create_shader_module.
• ShaderModuleDescriptorSpirV
  Descriptor for a shader module given by SPIR-V binary, for use with Device::create_shader_module_spirv.
• ShaderStages
  Describes the shader stages that a binding will be visible from.
• StencilFaceState
  Describes stencil state in a render pipeline.
• StencilState
  State of the stencil operation (fixed-pipeline stage).
• SubmissionIndex
  Identifier for a particular call to Queue::submit. Can be used as part of an argument to Device::poll to block for a particular submission to finish.
• Surface
  Handle to a presentable surface.
• SurfaceCapabilities
  Defines the capabilities of a given surface and adapter.
• SurfaceTexture
  Surface texture that can be rendered to. Result of a successful call to Surface::get_current_texture.
• Texture
  Handle to a texture on the GPU.
• TextureFormatFeatureFlags
  Feature flags for a texture format.
• TextureFormatFeatures
  Features supported by a given texture format
• TextureUsages
  Different ways that you can use a texture.
• TextureView
  Handle to a texture view.
• TextureViewDescriptor
  Describes a TextureView.
• VertexAttribute
  Vertex inputs (attributes) to shaders.
• VertexBufferLayout
  Describes how the vertex buffer is interpreted.
• VertexState
  Describes the vertex processing in a render pipeline.

Enums

• AddressMode
  How edges should be handled in texture addressing.
• AstcBlock
  ASTC block dimensions
• AstcChannel
  ASTC RGBA channel
• Backend
  Backends supported by wgpu.
• BindingResource
  Resource that can be bound to a pipeline.
• BindingType
  Specific type of a binding.
• BlendFactor
  Alpha blend factor.
• BlendOperation
  Alpha blend operation.
• BufferBindingType
  Specific type of a buffer binding.
• CompareFunction
  Comparison function used for depth and stencil operations.
• CompositeAlphaMode
  Specifies how the alpha channel of the textures should be handled during compositing.
• DeviceLostReason
  Reason for “lose the device”.
• DeviceType
  Supported physical device types.
• Dx12Compiler
  Selects which DX12 shader compiler to use.
• Error
  Error type
• ErrorFilter
  Filter for error scopes.
• Face
  Face of a vertex.
• FilterMode
  Texel mixing mode when sampling between texels.
• FrontFace
  Vertex winding order which classifies the “front” face of a triangle.
• Gles3MinorVersion
  Selects which OpenGL ES 3 minor version to request.
• IndexFormat
  Format of indices used with pipeline.
• LoadOp
  Operation to perform to the output attachment at the start of a render pass.
• MaintainBase
  Passed to Device::poll to control how and if it should block.
• MaintainResult
  Result of a maintain operation.
• MapMode
  Type of buffer mapping.
• PolygonMode
  Type of drawing mode for polygons
• PowerPreference
  Power Preference when choosing a physical adapter.
• PredefinedColorSpace
  Color spaces supported on the web.
• PresentMode
  Behavior of the presentation engine based on frame rate.
• PrimitiveTopology
  Primitive type the input mesh is composed of.
• QueryType
  Type of query contained in a QuerySet.
• SamplerBindingType
  Specific type of a sampler binding.
• SamplerBorderColor
  Color variation to use when sampler addressing mode is AddressMode::ClampToBorder
• ShaderModel
  Collections of shader features a device supports if they support less than WebGPU normally allows.
• ShaderSource
  Source of a shader module.
• StencilOperation
  Operation to perform on the stencil value.
• StorageTextureAccess
  Specific type of a sample in a texture binding.
• StoreOp
  Operation to perform to the output attachment at the end of a render pass.
• SurfaceError
  Result of an unsuccessful call to Surface::get_current_texture.
• SurfaceStatus
  Status of the received surface image.
• SurfaceTarget
  The window/canvas/surface/swap-chain/etc. a surface is attached to, for use with safe surface creation.
• SurfaceTargetUnsafe
  The window/canvas/surface/swap-chain/etc. a surface is attached to, for use with unsafe surface creation.
• TextureAspect
  Kind of data the texture holds.
• TextureDimension
  Dimensionality of a texture.
• TextureFormat
  Underlying texture data format.
• TextureSampleType
  Specific type of a sample in a texture binding.
• TextureViewDimension
  Dimensions of a particular texture view.
• VertexFormat
  Vertex Format for a VertexAttribute (input).
• VertexStepMode
  Whether a vertex buffer is indexed by vertex or by instance.

Constants

• COPY_BUFFER_ALIGNMENT
  Buffer to buffer copy as well as buffer clear offsets and sizes must be aligned to this number.
• COPY_BYTES_PER_ROW_ALIGNMENT
  Buffer-Texture copies must have bytes_per_row aligned to this number.
• MAP_ALIGNMENT
  Size to align mappings.
• PUSH_CONSTANT_ALIGNMENT
  Alignment all push constants need
• QUERY_RESOLVE_BUFFER_ALIGNMENT
  An offset into the query resolve buffer has to be aligned to this.
• QUERY_SET_MAX_QUERIES
  Maximum queries in a query set
• QUERY_SIZE
  Size of a single piece of query data.
• VERTEX_STRIDE_ALIGNMENT
  Vertex buffer strides have to be aligned to this number.

Traits

• UncapturedErrorHandler
  Type for the callback of uncaptured error handler
• WasmNotSend
• WasmNotSendSync
• WasmNotSync
• WindowHandle
  Super trait for window handles as used in SurfaceTarget.

Type Aliases

• BufferAddress
  Integral type used for buffer offsets.
• BufferDescriptor
  Describes a Buffer.
• BufferSize
  Integral type used for buffer slice sizes.
• CommandEncoderDescriptor
  Describes a CommandEncoder.
• DeviceDescriptor
  Describes a Device.
• DynamicOffset
  Integral type used for dynamic bind group offsets.
• ImageCopyBuffer
  View of a buffer which can be used to copy to/from a texture.
• ImageCopyTexture
  View of a texture which can be used to copy to/from a buffer/texture.
• ImageCopyTextureTagged
  View of a texture which can be used to copy to a texture, including color space and alpha premultiplication information.
• Label
  Object debugging label.
• Maintain
  Passed to Device::poll to control how and if it should block.
• QuerySetDescriptor
  Describes a QuerySet.
• RenderBundleDescriptor
  Describes a RenderBundle.
• RequestAdapterOptions
  Additional information required when requesting an adapter.
• ShaderLocation
  Integral type used for binding locations in shaders.
• SurfaceConfiguration
  Describes a Surface.
• TextureDescriptor
  Describes a Texture.