This gets the alias model render pass and pipeline passing validation.
I don't know why I didn't add the subpass field to the
VkGraphicsPipelineCreateInfo parser def, though it could be I simply
missed it, or I thought I wouldn't need it at the time.
Due to wanting to access array sizes when parsing uint32_t type values,
parse_uint32_t needs to handle size_t values even though it throws out
any excess bits.
After getting lights even vaguely working for alias models, I realized
that it just wasn't going to be feasible to do nice lighting with
forward rendering. This gets the bulk of the work done for deferred
rendering, but still need to sort out the shaders before any real
testing can be done.
Never really wanted in the first place (back when I did the plugin
renderers), but I didn't feel like doing the required work to avoid it
at the time. At least with Vulkan being a fresh start in an environment
that's already plugin-friendly, there was no real work involved. I'll
get to the other renderers eventually (especially now that I know gdb
does the right thing when there are multiple functions with the same
name).
It turns out I had conflated frame buffers with frames and wound up
making a minor mess when separating the number of frames the renderer
could have in flight from the number of swap-chain images. This is the
first step towards correcting that mistake.
It's not entirely there yet, but the basics are working. Work is still
needed for avoiding duplication of objects (different threads will have
different contexts and thus different tables, so necessary per-thread
duplication should not become a problem) and general access to arbitrary
fields (mostly just parsing the strings)
The node struct was 72 bytes thus two cache line. Moving the pointer
into the brush model data block allows nodes to fit in a single cache
line (not that they're aligned yet, but that's next). It doesn't seem to
have made any difference to performance (at least in the vulkan
renderer), but it hasn't hurt, either, as the only place that needed the
parent pointer was R_MarkLeaves.
It's not quite as expected, but that may be due to one of msaa, the 0-15
range in the palette not being all the way to white, the color gradients
being not quite linear (haven't checked yet) or some combination of the
above. However, it's that what should be yellow is more green. At least
the zombies are no longer white and the ogres don't look like they're
wearing skeleton suits.
Doesn't seem to make much difference performance-wise, but speed does
seem to be fill-rate limited due to the 8x msaa. Still, it does mean
fewer bindings to worry about.
This is a big step towards a cleaner api. The struct reference in
model_t really should be a pointer, but bsp submodel(?) loading messed
that up, though that's just a matter of taking more care in the loading
code. It seems sensible to make that a separate step.
I've decided that alias model skins should be in a single four-level
array texture rather than spread over four textures, but there's no way
I want to write that code again: getting it right was hard enough the
first time :P
It now takes a context pointer (opaque data) that holds the buffers it
uses for the temporary strings. If the context pointer is null, a static
context is used (making those uses of va NOT thread-safe). Most calls to
va use the static context, but all such calls have been formatted
consistently so they are easy to find when it comes time to do a full
audit.
I had messed up my index array creation, but once that was fixed the
textures worked well other than a lot of pixels are shades of grey due
to being in the top or bottom color map range.
I don't really know why (I need to do some research), but this fixes the
lockups when accessing the matrices UBO. It has made a mess of my
carefully designed uniform binding layout, so I hope I can get bound
descriptor sets working the way I want, but I really need to progress on
the rest of the project.
It's a tad bogus as it's the lights close to the camera, but it should
at least be a good start once things are working. There's currently
something very wrong with the state of things.
This makes tex_t more generally useable and probably more portable. The
goal was to be able to use tex_t with data that is in a separate chunk
of memory.
The sky texture is loaded with black's alpha set to 0. While this does
hit both layers, the screen is cleared to black so it shouldn't be a
problem (and will allow having a skybox behind the sheets).
