This moves the blerc math from mips2c to the Merc2 renderer, and uses
floats instead.
We could potentially do this on the GPU, which would be even faster, but
this isn't that slow in the first place.
Should fix https://github.com/open-goal/jak-project/issues/2679
Here's a test program that will trigger the bug when near these guards:
```lisp
(define *cquery* (new 'global 'collide-query))
(defun test-bad-collide ()
(let ((lower (new 'static 'vector :x 1681893.8750 :y 61314.2031 :z 345208.6562 :w 1.))
(upper (new 'static 'vector :x 1701603.8750 :y 67624.0625 :z 357881.0312 :w 1.))
;(cquery (new 'stack-no-clear 'collide-query))
)
(set! (-> *cquery* collide-with) (the-as collide-spec 1))
(set! (-> *cquery* ignore-process0) #f)
(set! (-> *cquery* ignore-process1) #f)
(set! (-> *cquery* ignore-pat) (new 'static 'pat-surface :noentity #x1 :nojak #x1 :probe #x1 :noendlessfall #x1))
(set! (-> *cquery* action-mask) (collide-action solid))
(set! (-> *cquery* bbox min quad) (-> lower quad))
(set! (-> *cquery* bbox max quad) (-> upper quad))
(format 0 "doing collide...~%")
(fill-using-bounding-box *collide-cache* *cquery*)
(format 0 "have ~d and ~d~%" (-> *collide-cache* num-tris) (-> *collide-cache* num-prims))
)
(none)
)
```
As far as I can tell, there's a totally invalid collide-hash with an
inside `axis-scale.z`. On the PS2, it gets ignore because of how
float->int works for floats that are too big. On PC, it ends up using a
negative value and loop forever.
This PR is a combination of
https://github.com/open-goal/jak-project/pull/2507 and some additional
changes to port Shadow VU1 to OpenGL. As far as I can tell, it's
working.
---------
Co-authored-by: Hat Kid <6624576+Hat-Kid@users.noreply.github.com>
Updates the decompiler for the new format and there's new macros. This
new format should be easier to read/parse.
Also rewrote `sp-init-fields!` (both jak 1 and 2) from assembly to GOAL.
Hopefully I did not miss any regressions in Jak 1/2 while updating the
files, it's a lot.
Fixes crashes when killing the big spider, killing predator metal heads,
and watching the end cutscene. The presursor guy is the wrong color, but
I don't have time to look into this today.
Add the vortex renderer. The vortex texture isn't there yet (it uses the
same texture as clouds), so it uses a checkerboard. But the
colors/vertices seem right.
This PR adds a feature to merc2 to update vertices. This will be needed
to efficient do effects like blerc/ripple/texture scroll. It's enabled
for blerc in jak 1 and jak 2, but with a few disclaimers:
- currently we still use the mips2c blerc implementation, which is slow
and has some "jittering" because of integer precision. When porting to
PC, there was an additional synchronization problem because blerc
overwrites the merc data as its being read by the renderers. I _think_
this wasn't an issue on PS2 because the blerc dma is higher priority
than the VIF1 DMA, but I'm not certain. Either way, I had to add a mutex
for this on PC to avoid very slight flickering/gaps. This isn't ideal
for performance, but still beats generic by a significant amount in
every place I tested. If you see merc taking 2ms to draw, it is likely
because it is stuck waiting on blerc to finish. This will go away once
blerc itself is ported to C++.
- in jak 1, we end up using generic in some cases where we could use
merc. In particular maia in village3 hut. This will be fixed later once
we can use merc in more places. I don't want to mess with the
merc/generic selection logic when we're hopefully going to get rid of it
soon.
- There is no support for ripple or texture scroll. These use generic on
jak 1, and remain broken on jak 2.
- Like with `emerc`, jak 1 has a toggle to go back to the old behavior
`*blerc-hack*`.
- In most cases, toggling this causes no visual differences. One
exception is Gol's teeth. I believe this is caused by texture coordinate
rounding issues, where generic has an additional float -> int -> float
compared to PC merc. It is very hard to notice so I'm not going to worry
about it.
This adds environment mapping support to `Merc2`, and turns it on for
Jak 1 and Jak 2.
- The performance is much better
- Jak 1 can be toggled back to the old behavior with `(set! *emerc-hack*
#f)`. The new environment mapping is identical to the old one everywhere
I checked.
- Jak 1 still falls back to generic for ripple/texscroll/blerc/eyes -
there's still no dynamic texture or vertex updating support. The eye
detection stuff will sometimes flag stuff as eyes which is not eyes,
which is fine, but means that generic will be used in some places where
emerc could be used. For example, the shiny plates on jak's arm will be
drawn with generic because jak has eyes.
- Jak 2 hasn't been checked super carefully against PCSX2 yet.
- Jak 2 still isn't technically using emerc, but instead putting emerc
models in the merc bucket.
- The interface to merc is a lot different now and totally custom
OpenGOAL DMA code. The original merc drawing asm doesn't run anymore.
- The FR3 format changed
- Something funky going on with foreground lighting in escape, but
doesn't seem to be related to this change?
Performance comparison, jak 1, in likely the most generic-merc heavy
spot:
- make sure bsp is processed on `l` levels in extraction (caused missing
remaps)
- clean up a few prints in extraction
- handle the <15 byte differences in art group files automatically (no
more errors about file naming)
- fix potential exception thrown by merc2 in a few ways: fixed bad data
in FR3's, check texture index just in case, and handle exceptions a
little bit better (still a crash, but at least you get a print)
- fix mips2 ocean stuff causing ocean far crashes
- worked around audio code for gungame, the tutorials now function
- auto-exit cutscenes upon entry. This doesn't always work nicely (i
didnt want to cause any side-effects due to messing with load states)
but it atleast stops jak from being stuck forever waiting for the
cutscene to load
Fixes:
- a very old bug in depth in DirectRenderer, probably from the original
tfrag stuff. Looked at PCSX2 source code to see how 32/24 bit depths are
handled. This fixes hud sprites being drawn behind level geometry.
- saturate `vftoi4` like the ps2 does when the float is too large,
fixing hidden text in `hud`. For now it's only using this in the font
code because this saturation is actually kinda slow and hasn't been a
problem in other places.
- fix crazy particle spawning issue with blue gun and dripping stuff.
This would happen if particles kill themselves while being processed
(through a callback)
- Split up DGOs between threads in the multithreaded offline test
- fix some random warnings
- make the sig paths decompile a bit nicer to make some files smaller
- decompile `lights.gc`
- decompile remaining `target-death` function, you can die now
- fix float issue with `matrix-from-two-vectors-smooth!` making jak face
the wrong way in the slide thing
The VU programs for the ocean renderer have changed a bit and
`ocean-texture` has a bunch of new stuff, otherwise things are
relatively similar to Jak 1.
This is the first time I used mips2c and I'm not sure I did it 100%
right, so that should be double-checked.
The only interesting one is `collide-hash`, which is untested.
The other two are very likely unused. I skipped the annoying code in
`collide-probe` because it's not used and the same as jak 1.
A few issues:
- lwidea's fr3 is getting loaded and unloaded all the time
- the debug line drawing clipping is wrong (doesn't seem wrong in pcsx2,
so I think this is on us)
- nothing actually using vis data yet
- at a large distance, our view frustum culling seems slightly too
aggressive (might be that viewport scissoring is wrong)
- in the city, things seem darker as you move away. unclear how this is
happening (fog?)
* git: ignore vs build dir
* cmake: ditch `clang-cl` on windows in favor of actual `clang`
* build: suppress a significant number of warnings
* build: adjust workflows and vendor nasm
* docs: update docs to remove `clang-cl` mentions
* build: fix some copy-paste mistakes in the linux build
* build: remove C++20 compat warnings as that is useful if we want to upgrade
