An efficient, low-level, bindless graphics API for Rust.
A command buffer is a serialized list of drawing and compute commands. Unlike with vulkan, command buffers are not what you use to create commands, but only the result of creating these commands. Gfx, borrowing metal's terminology, uses encoders to build command buffers. This means that, in general, users of the gfx crate don't manipulate command buffers directly much and interact mostly with encoders.
Encoder in gfx corresponds to interacting with:
OpenGL and earlier versions of D3D don't have an explicit notion of command buffers or encoders (with the exception of draw indirect commands in late versions of OpenGL, which can be seen as a GPU-side command buffer). They are managed implicitly by the driver.
The factory is what lets you allocate GPU resources such as buffers and textures.
Each gfx backend provides its own factory type which implements both:
gfx::Factory is roughly equivalent to:
OpenGL does not have a notion of factory (resources are created directly off of the global context). D3D11 has a DXGI factory but it is only used to interface with other processes and the window manager, resources like textures are usually created using the device.
Handles internally use atomically reference counted pointers to deal with memory management. GPU resources are not destroyed right away when all references to them are gone. Instead they are destroyed the next time Device::cleanup is called.
Universal format specification. Applicable to textures, views, and vertex buffers.
Convenience macros Various helper macros.
Types to describe the properties of memory allocated for gfx resources.
A typed high-level graphics pipeline interface.
Shaders Shader parameter handling.
Fixed-function hardware state.
Texture creation and modification.
public re-exported traits
Defines vertex, constant and pipeline formats in one block.
Graphics Command Encoder
Metadata about a program.
An error from creating textures with views at the same time.
An error occuring in memory copies.
Type of index-buffer used in a Slice.
Error creating a PipelineState
Describes what geometric primitives are created from vertex data.
Error creating either a ShaderResourceView, or UnorderedAccessView.
A complete set of shaders to link a program.
Error creating either a RenderTargetView, or DepthStencilView.
A value that can be uploaded to the device as a uniform.
An error occuring in buffer/texture updates.
An interface of the abstract command buffer. It collects commands in an efficient API-specific manner, to be ready for execution on the device.
A helper trait to create
Different types of a specific API.
Result type returned when copying a buffer into another buffer.
Result type returned when copying buffer data into a texture.
Result type returned when copying texture data into a buffer.
Draw number of instances
Optional instance parameters: (instance count, buffer offset)
Draw vertex count.