The OIT color and depth/stencil attachments, a-buffers and pixel counter
are shared by consecutive render passes and by all frames in flight, but
the render pass had no external dependency covering them, and the pixel
counter reset wasn't synchronized with the fragment shaders using it.
With MoltenVK using Metal 3 argument buffers and residency sets (macOS 15+),
Metal no longer tracks hazards on resources accessed through argument
buffers, so input attachment reads and storage buffer accesses of a frame
may race with the attachment clears/loads and a-buffer writes of the next
one. This results in sporadic one-frame glitches with per-pixel alpha
sorting.
Issue #2495
Secondary accumulator fixes BANG! Gunship Elite, Evil Dead, Space
Channel 5 part 2 and WCCF in non-OIT mode.
Bind dummy imageView/buffer if a descriptor set doesn't use a slot. This
avoids referencing old resources and fixes validation errors when those
resources are deleted.
oit: lighter headers. Also bind dummy imageView/buffer where needed.
Add image barrier in VulkanContext::PresentFrame() for nvidia gpus.
Tentative fix for square glitches on nvidia 30xx series.
Issue #1631
oit: Add dependency from external to subpass 2 since vulkan's implicit
one is too relaxed.
Add subpass dependency from the last subpass to external/top of pipe.
Fix glitches in upper left corner when using OIT on Mali GPUs.
Issue #1014
Issue #1234
Issue #1356
Issue #1497
Issue #1852
Use correct temp attachment depending on pass count. Keep attachment
index to bind the correct one before final subpass.
Use correct initial layout for OP+PT attachment 1 (was eUndefined) when
creating the RTT render pass.
Fixes Alone in the Dark cutscenes.
Issue #1609
Recreate RTT attachments if switching CopyToVRAM on/off.
move ui loop out of hw/pvr
vk: implement multi-rendering, delay swap. Load fb before render pass
fps counter now counts frames, not renders
vk: force ignoreTexAlpha for 565 texture in case the supporting texture
has an alpha channel (RTT). Fixes Alone in the Dark cinematic scenes.
pvr: better detection of frame swapping (FB_R_SOF/FB_W_SOF)
pvr: synchronous rendering now always waits for render in progress
(speed measurement not reliable, render skipped when multi-rendering)
vk: limit swap chain size to 2
Flyinghead