| # Shader features |
| |
| New shader features require the extensions to be enabled at device creation in addition to adding a `enable` directive in the WGSL. |
| This file regroups the documentation for all the Dawn-specific shader-only features. |
| |
| ## ChromiumExperimentalSubgroups |
| |
| This adds support for the [`chromium_experimental_subgroups`](Link to do) WGSL `enable`. |
| Currently used to investigate subgroup functionality and not for general use. |
| |
| It also provides the `wgpu::DawnExperimentalSubgroupLimits` structure used to gather data about the subgroup minimum and maximum size on the device. |
| (the limit cannot be changed when requesting a device) |
| `wgpu::DawnExperimentalSubgroupLimits` is populated by chaining it to the `wgpu::SupportedLimits` in the calls to `wgpu::Adapter::GetLimits` and `wgpu::Device::GetLimits`. |
| |
| ## ChromiumExperimentalSubgroupsUniformControlFlow |
| |
| Used to expose that the device supports `VK_KHR_shader_subgroup_uniform_control_flow`. |
| This is only for use in the investigation of subgroup functionality. |
| |
