Ian Curtis
5f30614c4c
FIx shaders failing to build on apple h/w
2022-11-09 18:56:15 +00:00
Ian Curtis
40c8259130
Rewrite the whole project for GL4+. I figured if we removed the limitation of a legacy rendering API we could improve things a bit. With GL4+ we can do unsigned integer math in the shaders. This allows us to upload a direct copy of the real3d texture sheet, and texture directly from this memory given the x/y pos and type. This massively simplifies the binding and invalidation code. Also the crazy corner cases will work because it essentially works the same way as the original hardware.
...
The standard triangle render requires gl 4.1 core, so should work on mac. The quad renderer runs on 4.5 core. The legacy renderer should still work, and when enabled a regular opengl context will be created, which allows functions marked depreciated in the core profiles to still work. This will only work in windows/linux I think. Apple doesn't support this.
A GL 4.1 GPU is now the min required spec. Sorry if you have an OLDER gpu. GL 4.1 is over 12 years old now.
This is a big update so I apologise in advance if I accidently broke something :]
2022-11-07 21:33:01 +00:00
Ian Curtis
b2e5a200da
Fix build for linux (just missing header)
2022-10-17 09:34:11 +01:00
Ian Curtis
f0872cc998
Upgrade the glsl shader class a bit. Add a const char* comparitor so we can use a map with a simple "string" key. Fine to use when performance is not critical.
2022-10-16 21:03:41 +01:00
toxieainc
e644751f01
after clarifications, minor cleanup
2022-10-10 16:35:02 -07:00
toxieainc
75771b3d14
remove 2 dupe function calls, where ProcessLos should actually be rather costly
2022-10-10 16:35:02 -07:00
Fernando Casas Schössow
412e9232d7
Fix new 3D engine texture2DLod function missing error on Linux/MESA. MESA requires needed extensions to be explicitly declared in code otherwise it will not enable them.
2022-10-10 16:30:09 -07:00
toxieainc
5f97e5af6c
address review
2022-10-03 17:59:59 -07:00
toxieainc
519d695f57
address review and move bit casts to new header
2022-10-03 17:59:59 -07:00
toxieainc
1b0e3be8dc
use correct slash
2022-10-03 17:59:59 -07:00
toxieainc
22ffb5cc19
Harmless math warning fixes. map->unordered_map in CNew3D::CacheModel. Avoid general aliasing problems (using bit_cast or the recommended/optimized-away memcpy).
2022-10-03 17:59:59 -07:00
toxieainc
d7041a83c9
fix missing version GLSL compiler warnings on startup
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happens (at least) on Intel drivers
2022-08-19 08:41:22 -07:00
toxieainc
6c24bf7c8f
Optimize quad rendering by replacing the double computations for the area computation with the equivalent shoelace algorithm along with kahans algorithm to compute the cross products. In addition pull out the /w to the end, which increases precision even more.
...
Thus making the result similar to the fp64 version, tested e.g. with harleys first person mode (all artifacts still gone as before).
Improves perf on low end boards (e.g. Intel) dramatically (10fps with harley before, now 70 on my laptop), and even on higher end (e.g. NVIDIA laptop, quads are now faster than tri pipeline on my laptop).
2022-08-16 21:34:31 -07:00
toxieainc
4961951a89
fix a real error (m68kdasm) and some harmless performance warnings and use modern headers
2022-07-11 18:10:41 +02:00
Ian Curtis
0ef90899e1
Double buffer the line of sight values. Should allow the correct values to be returned if GPU threading is enabled.
2022-01-02 12:48:09 +00:00
Matthew Daniels
9ffce8b92a
Getting rid of most of the includes from Supermodel.h; each file now explicitly includes the header files it needs.
...
Making changes to a header file should no longer force the entire project to recompile.
2021-11-22 17:15:06 +00:00
Ian Curtis
e3374256ff
Just a few compile warnings
2021-02-20 22:19:16 +00:00
Ian Curtis
75f8ee61a3
fix missing polys with quad renderer
2020-09-14 20:01:52 +00:00
Ian Curtis
38c3ff61f9
Clip scroll fog to viewport, instead of filling entire screen. Fixes fog bug in Daytona credits.
2020-09-08 09:10:24 +00:00
Ian Curtis
aaa26f678c
Update scroll fog logic. Should fix the credits in virtua fighter and daytona that have fogging applied to the background layer and shouldn't.
2020-09-07 16:25:18 +00:00
Ian Curtis
ba917aca6d
Update glew version
2020-07-31 19:18:51 +00:00
Ian Curtis
6f6c98c671
The translator map seems to work with paletted colour values too, and the result is not clamped. Colours are passed to the GPU as unsigned bytes to multiplying by 16 will overflow, so we do the logic in the shader. If we passed floats we could skip the shader logic.
2020-05-11 09:05:46 +00:00
Ian Curtis
e2ad593e88
When the translator map is enabled the colour values seem to use 4 bits, 0-16. Why not 0-31 I don't know. Anyway virtua on is overflowing these values for some of the smoke effects. For us the numbers were wrapping around. Clamping is enough to fix this. (Thanks model123)
2020-05-07 19:34:22 +00:00
Ian Curtis
5ace960f14
tweak value so the map indicator still works at the start of spikeout
2020-01-04 18:15:30 +00:00
Ian Curtis
6b8a29105a
Sutherland-Hodgeman clipping only works for planar primitives. Scud is rendering non planar quads and this breaks our algorithm a little when using the quad renderer. Stretching the near plane a few % is enough to fix it.
2020-01-04 13:48:14 +00:00
Ian Curtis
d711afade1
Only need to clip against 4 planes for poly culling
2020-01-04 13:45:55 +00:00
Ian Curtis
605dad2c02
Fix the sky in harley in first person mode where pixels in the sky are culled when they shouldn't be with the quad renderer. Basically we were running out of precision in a rare corner case. Doing the maths with double precision and casting back to float was enough to fix the issue.
2019-12-27 21:36:46 +00:00
Ian Curtis
a5858e635d
To calculate the mipmap value the opengl needs to calculate the difference in the texture coordinates between adjacent pixels. If there are no adjacent pixels the hw may need to spawn invisible fragments outside of the visible polygon. Our algorithm was culling these out so the mipamp calculation failed for edge pixels. Anyway this fixes quad rendering looking broken with the latest nvidia drivers.
2019-12-10 11:40:39 +00:00
Ian Curtis
06688de5fc
Really should cull against 5 frustum planes.
2019-11-15 20:00:25 +00:00
Ian Curtis
06b43c45b3
Ocean hunter in the middle of the game is passing a few matrices with FLT_MAX inside them, which blows apart our near/far calculation. The hardware must have some method to sanitize the near/far for instance if you render something extremely close to the origin you will also blow apart any near/far calc.
2019-11-02 20:11:48 +00:00
Ian Curtis
714f6a123a
skip invalid culling nodes
2019-07-28 12:14:13 +00:00
Ian Curtis
17f4103123
A culling node must follow immediately after a viewport.
2019-07-26 16:39:58 +00:00
Ian Curtis
f634d19fdc
Fix shader. Why this worked on my nvidia card .. I'm not sure.
2019-01-24 19:11:26 +00:00
Ian Curtis
8094c2e2b7
Composite the alpha layers at the end of rendering. To do this we need to mask the alpha pixels with the opaque pixels from the next priority layer. Fixes some overlapping shadows in vf3tb that have different priority layers. I assume that was a game bug, but it works on the real h/w.
2019-01-21 14:30:42 +00:00
Ian Curtis
864bb36b5a
Technically backface culling should cull polys when the dot product = 0, since when it equals 0 the polys is perpendicular to the camera and thus invisible. When you complete sega rally2 (if you can get that far lol) the champagne is invisible. The reason is because all the face normals are 0. So when multiplied by the model matrix they are still 0 and get culled. Tweaking the condition to only cull polys when greater than 0 fixes this, and allows these 'bad' polys to render as they do on the model3.
2019-01-16 01:07:56 +00:00
Ian Curtis
6075352868
Optimise depth calculation for quad shader.
2018-11-27 20:43:27 +00:00
Ian Curtis
538a714086
Fade out microtextures with higher textures LODs. Fixes incorrectly applied microtextures in LA machineguns.
2018-10-23 00:16:23 +00:00
Ian Curtis
bf4d725970
Smooth texture repeat makes no sense for alpha/contour textures with pixel dilate. HW seems to treat them as non smooth anyway. Also implement some line of sight stuff, used by Scud. Really need to check the threading/synchronisation of the register reads but it basically works.
2018-10-19 20:59:46 +00:00
Ian Curtis
42eaa7f3d8
fix copy paste error :]
2018-10-14 10:05:24 +00:00
Ian Curtis
3eeec35e7c
Correctly emulate the real3d pro-1000 texture modes in our shader.
2018-10-13 13:29:45 +00:00
Ian Curtis
7bcc70a170
Update makefile
2018-10-01 17:42:45 +00:00
Ian Curtis
3dbfa73734
Both lemans24 and dirt devils are rendering some totally transparent objects as the first model in each viewport. The HW seems to skip these entirely, and including them breaks our near/far plane calculations leading to Z fighting.
2018-09-19 20:43:41 +00:00
Ian Curtis
e3255e45f3
Tweak the ratio for the near plane. Fixes missing text on the map indicator at the start of spikeout. The vertices are 0.003 units apart so a tonne of precision is required at the near plane to not depth test out.
2018-09-18 21:46:38 +00:00
Ian Curtis
c5b156d95d
remove debug code
2018-09-18 21:20:15 +00:00
Ian Curtis
5dab9910e2
avoid double matrix load
2018-09-16 08:43:13 +00:00
Ian Curtis
b5f9ad9651
Quad rendering engine. Set QuadRendering = 1 in the ini file to use, or -quad-rendering at the end of the command line to use.
2018-09-13 12:50:34 +00:00
Ian Curtis
e4f5f0bcaf
Sega bass fishing is starting some off the meshes with a shared vertex. Without having a previous vertex to share with, the values were just uninitialised and junk. The hardware itself seems to hold the value from the previous mesh, and sega bass fishing relies on this undefined behaviour to function correctly. Storing the cached vertices as member variables instead of locally to the function means it holds the values from the last mesh, and uses those values instead of random garbage.
2018-09-02 21:36:24 +00:00
Ian Curtis
c1c2dedcfa
remove dead variable
2018-08-09 21:57:51 +00:00
Ian Curtis
9f5a19a04a
Use correct PCI IDs (Harry Tuttle)
2018-07-09 08:06:06 +00:00
Ian Curtis
73ff32a10d
fix cast, and remove extra ; that had snuck into the shaders
2018-06-18 10:24:46 +00:00
Ian Curtis
f9be1259c0
Opaque polys definitely depth test with less than or equal. Virtua striker is drawing co-planar polys for the bar gfx
2018-06-17 11:30:01 +00:00
Ian Curtis
c7ffd0a808
Draw transparent polys to separate layers and composite at the end. This solves a tonne of transparency errors we had been battling with for a long time. The model3 is strange in the fact it only supports a max of two translucent overlapped polys. They are not blended into the frame normally. Doing this means the topmost translucent polys only are visible in the scene, the equivalent of doing a depth pass first, but without the added cost.
2018-06-16 21:31:29 +00:00
Ian Curtis
7497e3f1a6
forgot parentheses
2018-05-29 14:54:23 +00:00
Ian Curtis
f9f43ca66b
2018-05-28 12:55:13 +00:00
Ian Curtis
c1e0e3728b
optimise hash function and parse out transparency layer select bit
2018-05-28 11:59:48 +00:00
Ian Curtis
2af58f4352
select correct bit ..
2018-05-24 20:19:54 +00:00
Ian Curtis
8452d4c0ef
Parse out TranslucencyPatternSelect
2018-05-24 20:13:15 +00:00
Ian Curtis
4d275ba49e
Parse siblings after children. It's the only way to get Daytona water fall to look correct without h/w poly sorting.
2018-05-03 18:37:49 +00:00
Bart Trzynadlowski
3f9b1b76e5
Added a stretch mode (-stretch) and modified new renderer's viewport code (hopefully correctly) to handle aspect ratio correction and widening the way the legacy one does.
2018-05-03 03:46:44 +00:00
Ian Curtis
c6b86c0812
Render the opaque part of texture transparency in the first pass. Fixes numerous transparency related issues in lemans24 and some in ocean hunter. I don't really know if this is the 'correct' way of solving this because the real3d pro-1000 is a complete black box. There is still a lot we don't understand about how it handles transparency.
2018-05-02 20:10:02 +00:00
Ian Curtis
11a3cdbfd1
remove unnecessary copies
2018-04-24 13:51:53 +00:00
Ian Curtis
d21e71dced
work around for non working jtag code in star wars
2018-03-21 10:26:05 +00:00
Ian Curtis
b184ca3e1b
Clamping must be applied before the spotlight is applied on step 1.0 h/w.
2018-03-10 09:13:28 +00:00
Ian Curtis
8266eecabb
Parse out line of sight position. Only known to be used by scud.
2018-01-15 21:27:21 +00:00
Ian Curtis
99b5b9ba1b
make the logic a bit clearer
2018-01-15 14:40:59 +00:00
Ian Curtis
22a6166b82
fix Ian's bad maths :)
2018-01-15 13:08:39 +00:00
Ian Curtis
a1350d95a2
Update microtexture coordinate logic (Harry Tuttle)
2018-01-14 12:56:24 +00:00
Ian Curtis
863ea95013
simplify maths
2018-01-10 20:37:21 +00:00
Ian Curtis
adb5196625
comment out unneeded code
2018-01-10 16:12:33 +00:00
Ian Curtis
d708ce9ba2
top/bottom were swapped for off axis projection
2018-01-10 16:08:02 +00:00
Ian Curtis
6efa03112e
Rewrite projection maths based upon previously unknown viewport values. The previous values used roughly worked as the normals for frustum planes. Perhaps they were only used for culling and not actually rendering, as sometimes the values don't work correctly.
2018-01-08 18:35:42 +00:00
Ian Curtis
cc28d5f00e
Implement sub 8x8 tile encoding. Fixes incomplete mipmap chains which previously only went down to 8x8 pixels before. It wasn't known these textures existed before. (Harry Tuttle)
2017-12-17 22:25:50 +00:00
Ian Curtis
cede67468c
Fix some bad/missing textures in fighting vipers. The game is referencing totally illegal texture sizes. The real h/w was just handling it somehow, whilst we were returning null for the textures. This might produce junk textures for the lower mipmaps, but this can be clamped in a later update.
2017-12-13 01:21:25 +00:00
Ian Curtis
62d9584b0d
Shift fog maths to fragment shader to fix bug in virtua on.
2017-11-23 17:51:51 +00:00
Ian Curtis
bddc86aba9
The vertex shader is run before clipping is done. If fogging values are calculated and clamped in the vertex shader it can interpolate bad values, since the range has been truncated. This happens if the polys overlap the near plane. The solution to clamp the values in the fragment shader. This fixes a bunch of fogging errors I long thought were transparency related errors in the ocean hunter.
2017-11-20 22:21:15 +00:00
Ian Curtis
bc7f1e9fac
Fixed shading also works with untextured polys. Fixes some shading issues in La machineguns. (Harry Tuttle)
2017-11-07 00:15:57 +00:00
Ian Curtis
df44ad458b
Update step 1.5 luminous logic with Harry's findings. Fixes various shading issues.
2017-11-05 13:25:33 +00:00
Ian Curtis
8e13c3bbb9
Finish the hash function (Harry Tuttle)
2017-10-19 20:48:53 +00:00
Ian Curtis
7f6df0cc84
Remove fixed shading check from specular.
2017-10-07 12:39:30 +00:00
Ian Curtis
eb798ed15e
Star wars is the only game to pass unsigned fixed shaded values (per vertex brightness) to the renderer. Originally we thought that the specular flag would turn on unsigned values since it's the only game to set specular with these polys, but this logic turned out to be incorrect. The JTAG interface seems to config the GPU to turn on this functionality. (Harry Tuttle)
2017-10-05 19:15:00 +00:00
Ian Curtis
43cf6b3bbf
update spotlight code (Harry Tuttle)
2017-10-05 18:49:08 +00:00
Ian Curtis
9bac7836ed
add missing header
2017-09-30 19:05:04 +00:00
Ian Curtis
0afd9026dc
Fix the sky in one of the levels in virtua on. The problem was caused by the fact we didn't split the mesh by the fog % burn through, so all the polys had the same value. We could use a vertex attrib, but % burn through fog is so rarely used and when it is, normally every poly in the mesh has the same value.
2017-09-26 00:30:08 +00:00
Bart Trzynadlowski
55bb02d4e5
- New work-in-progress frame timing code (disabled by default, compile with NEW_FRAME_TIMING defined to activate it)
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- New JTAG emulation, moved into its own class, CJTAG
- Removed game-specific sun clamp hacks from CNew3D (JTAG and Real3D emulation will call the appropriate method to configure this at run-time)
- Removed JTAG from Real3D save state data and reused some of that space for new state variables having to do with the internal JTAG-based config as well as new frame timing state variables
2017-09-24 20:52:48 +00:00
Ian Curtis
a3e2fb7906
Calculating the length of the vertex results in quite broken values for fogging when the vertices are traversing the view frustum. The hardware also wouldn't have been doing a square root per vertex for fogging. Simply using the z values is enough. Todo check clamping of values for the near/far planes.
2017-09-06 13:07:39 +00:00
Ian Curtis
2786d95795
add interface for sun clamp
2017-09-02 14:54:16 +00:00
Ian Curtis
266c911133
Optimise vertex data to cut down on unnecessary copying
2017-08-30 21:45:25 +00:00
Ian Curtis
165926aa06
Modern hardware does backface culling in window space by calculating the face normal for the polygon, then doing a dot product against the view vector. The real3d pro-1000 on the other hand passes a pre-calculated face normal for each polygon which is used for culling. We were using this face normal to rewind the polygons so that regular backface culling would work. This worked 99.9% of the time. However this was failing on some models in Virtua Striker. The reason was because the pre-calculated face normals being passed were actually completely different to the actual face normals for the poly (not just inverted like you would expect). This broke our code. The solution was to emulate face culling directly in the vertex shader using the pre-calculated face normals directly. Only minimally tested this but hopefully there are no obvious regressions.
2017-08-29 10:27:29 +00:00
Ian Curtis
50d1f95648
Changed fixed shaded logic for step 1.5 hw based upon Harry's findings
2017-08-25 22:40:39 +00:00
Ian Curtis
b21ed49512
cosmetic
2017-08-21 23:00:29 +00:00
Ian Curtis
cd5978773a
Harry made some important discoveries with regards to fixed shading on the model 3 (per vertex poly brightness values). Firstly values are allowed to be negative, and they are used as a drop in replacement in the standard lighting equation for the normal dot light vector. This quite radically changes the brightness in LA Machine guns, but now correctly matches the arcade.
2017-08-19 20:06:31 +00:00
Ian Curtis
0efd4dac39
Finish fixed shading for 2.0 hardware. I'm pretty sure it actually works identically to step 1.5 hardware. The oddball is LA machine guns where the viewport ambient doesn't seem to effect the brightness. But the ambient works differently in this game because it uses the unclamped light model. Still need to investigate if the diffuse factor effects fixed shading.
2017-08-15 23:21:57 +00:00
Ian Curtis
b1cc9a615d
With fixed shading, when lighting is disabled, fixed shading appears to be a flat shaded version based upon the poly colour, instead of per vertex attributes.
2017-08-15 20:50:36 +00:00
Ian Curtis
2422caadc6
Pad struct and align on 4 byte boundary.
2017-08-15 20:45:08 +00:00
Ian Curtis
eac76f0908
simplify
2017-08-14 23:30:34 +00:00
Ian Curtis
81188bee07
fixed shading doesn't effect the alpha channel
2017-08-14 16:10:26 +00:00
Ian Curtis
c12e4c3215
Fixed shading (per vertex poly colours) on step 1.5 hardware have the viewport ambient value added to them. This fixes various shading on scud. To do this had to switch the maths to the vertex shader.
2017-08-14 09:14:06 +00:00
Ian Curtis
8f622714a7
Fix attribute locations. glBindAttribLocation must be called linking
2017-08-11 11:59:41 +00:00
Bart Trzynadlowski
a315627401
Added support for loading shaders from files for new engine and tile renderer. Changed help text to reflect new engine being default.
2017-08-11 00:41:10 +00:00
Ian Curtis
d7403afda6
use generic vertex attributes
2017-08-10 15:43:03 +00:00
