- Add support for vertex bindings and UMA vertex buffers in D3D12.
- Simplify 2D instance params and move more into per-batch data to save
bandwidth
Co-authored-by: Skyth <19259897+blueskythlikesclouds@users.noreply.github.com>
Co-authored-by: Clay John <claynjohn@gmail.com>
Co-authored-by: A Thousand Ships <96648715+athousandships@users.noreply.github.com>
This work is a heavily refactored and rewritten from TheForge's initial
code.
TheForge's original code had too many race conditions and was
fundamentally flawed as it was too easy to incur into those data races
by accident.
However they identified the proper places that needed changes, and the
idea was sound. I used their work as a blueprint to design this work.
This PR implements:
- Introduction of UMA buffers used by a few buffers
(most notably the ones filled by _fill_instance_data).
Ironically this change seems to positively affect PC more than it does
on Mobile.
Updates D3D12 Memory Allocator to get GPU_UPLOAD heap support.
Metal implementation by Stuart Carnie.
Co-authored-by: Stuart Carnie <stuart.carnie@gmail.com>
Co-authored-by: TheForge team
Introduce a specialised `texture_get_data` for `RenderDeviceDriver`,
which can retrieve the texture data from the GPU driver for shared
textures (`TEXTURE_USAGE_CPU_READ_BIT`).
Closes#108115
Metal Support contributed by Migeran (https://migeran.com) and Stuart Carnie.
Co-authored-by: Stuart Carnie <stuart.carnie@gmail.com>
Co-authored-by: Gergely Kis <gergely.kis@migeran.com>
This change adds support for running XR projects built with the `d3d12`
rendering backend. The XR backend hooks into the setup for the D3D12
render context in order to use the desired device and command queue for
submission to OpenXR. The XR backend takes care of importing the D3D12
swapchain images into the render context.
As part of this process, three issues are addressed:
- Ensuring that resource state transitions are only done on textures
that require them.
- Enabling view instancing in the PSOs for multiview render passes.
- Addressing a bug in the D3D12 runtime where PSO creation may fail
when front face detection is used.
Please refer to #86283 for additional discussions on the implementation
details.
