569 B
569 B
bump: minor
type: feat
HDR10 output on the Vulkan renderer — r3d_hdr(on) asks for an ST 2084 / BT.2020 swapchain where the
display offers one.
The tonemap's HDR10 variant keeps the SDR picture up to a 200-nit paper white and rolls highlights on to
1000 nits; the overlay converts the interface to the same white; HDR metadata is set where the loader has
the command. The screen and LDR images are 10-bit while it is on, and screenshots refuse rather than write
a PQ image as SDR. OpenGL and the Vulkan SDR frame are unchanged. R3D_HDR overrides the setting.