dx11: shadow scale factor inverted in per-pixel
vulkan: clear deleted overlay images when terminating
Use color struct for FOG_COL_VERT, FOG_COL_RAM, FOG_CLAMP_MIN,
FOG_CLAMP_MAX and VO_BORDER_COL. Avoid code duplication in renderers.
Use w=1 to avoid multiply/divide of xy as in dx9
Disable rendering when video output disabled
Use original w value in pixel struct to avoid precision loss (samsptk)
vk oit: missing memory barrier was producing Tr modvol glitches (JSR)
gl oit: Tr modvol needs full vertex shader
fetch color format, storage buffer alignment and stores/atomics support
at init
support for framebuffers used as input attachments
use Allocator instead of VulkanAllocator
return handles instead of unique handles
flyinghead