Support rendering eyes with merc for both jak 1 and jak 2.
For jak 1, everything should look the same, but merc will be used to
draw eyes. This means that jak is now fully drawn with merc!
For jak 2, eyes should draw, but there are still a few issues:
- the tbp/clut ptr trick is used a lot for these eye textures, so
there's a lot that use the wrong texture
- I had to enable a bunch more "texture uploads" (basically emulating
the ps2 texture system) in order to get the eyes to upload. It would be
much better if the eye renderer could somehow grab the texture from the
merc model info, skipping the vram addressing stuff entirely. I plan to
return to this.
- I disabled some sky draws in `sky-tng`. After turning on pris2
uploads, the sky flashed in a really annoying way.
Initial implementation of the `ocean-mid`, `ocean-far` and `ocean-near`
renderers for Jak 2.
There's still a few things to sort out, mainly:
- [x] ~Backwards compatibility with Jak 1. The only thing that currently
stands in the way of that is figuring out a clean way to "un-hardcode"
the texture base pointer in C++ without creating a completely separate
`OceanTexture` class for Jak 2. One thing I thought of would be
modifying `BucketRenderer`'s virtual `init_textures` method to also pass
the `GameVersion`, but I'm not sure if there's a better way.~
- [x] ~The sudden transition from `ocean-near` to `ocean-mid`. Not sure
why it's happening or how to fix it.~
- [x] The ocean has two new methods in Jak 2, `ocean::89` and
`ocean::79`, one of which seems to be related to time of day sky colors.
~Even without them implemented, the end result looks quite close, so we
may be able to skip them?~ `ocean::89` generates `ocean-mid` envmap
textures, so it will likely be required, but will not be handled right
now.
Reverted the VU prologue removals because it made the tests fail.
