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Author SHA1 Message Date
gm-matthew 42e236be0d Add comment briefly explaining optimization 2024-06-10 15:25:13 -07:00
gm-matthew f30a8ee2a8 Minor shader optimization 
If the mipmap level is 0.0, we only need to run texBiLinear() for the highest quality texture mipmap
Adds around 10-20% more performance in Daytona 2
 2024-06-10 15:25:13 -07:00
Ian Curtis a6466b353d spelling 2024-06-01 19:20:35 +01:00
Ian Curtis 21e148599a Fix some missing scroll fog background effects in ECA 2024-06-01 10:38:40 +01:00
gm-matthew 7d32bde074 When disabling sound IRQs via MIDI control port, clear current IRQ 
Prevents Dirt Devils hanging during boot
 2024-05-22 15:36:15 -07:00
dukeeeey 976f0208dc
Merge pull request #151 from gm-matthew/sound-irq 
Sound IRQs are acknowledged by writing to MIDI data port
 2024-05-20 19:31:25 +01:00
gm-matthew 8a0bf29dd8 Sound IRQs are acknowledged by writing to MIDI data port 2024-05-20 13:38:45 +01:00
dukeeeey 7b02f58694
Merge pull request #149 from gm-matthew/scuddxo 
Only access SCSI device at 0xC0xxxxxx if it has been configured to do so
 2024-05-04 20:22:42 +01:00
gm-matthew 3e394d1257 Only access SCSI device at 0xC0xxxxxx if it has been configured to do so 
Fixes some step 1.5 games not working in last update
 2024-05-04 19:43:02 +01:00
dukeeeey 2245fca796
Merge pull request #147 from gm-matthew/scuddxo 
Adding newly dumped version of Scud Race
 2024-05-02 23:29:47 +01:00
gm-matthew 39dc16d8ba Use integer value for game stepping 2024-05-02 23:25:53 +01:00
gm-matthew 944e4855d9 Adding newly dumped version of Scud Race 
Allow Step 1.5 games to access 53C810 via 0xC00000xx if the netboard is disabled, because scuddxo requires this
 2024-05-02 15:43:37 +01:00
Bart Trzynadlowski 250f84e78e Updated .gitignore to exclude build directories and Supermodel release directories 2024-04-05 14:28:07 -07:00
dukeeeey dec85032ba
Merge pull request #138 from h0tw1r3/fix/2d-shaders 
Fix 2D texture rendering on OSX
 2024-03-14 10:30:48 +00:00
Bart Trzynadlowski d9f48db5db CLogger: destructor needs to be virtual 2024-03-09 20:56:50 -08:00
Jeffrey Clark 93f622ee25 cleanup code format 2024-03-06 01:07:56 -06:00
Jeffrey Clark 047b15c210 fix 2d shaders on OSX 2024-03-06 02:11:21 -06:00
baraclese 1bb7de1dd9 fix segfault in CMultiLogger 
vsprintf may change its va_list argument so repeatedly calling it with the same va_list arg is undefined behavior.
Fix this by creating a copy of the va_list argument before each vsprintf call.
 2024-03-05 16:07:47 -08:00
Bart Trzynadlowski e59ecea32d PowerPC frequency determined by board stepping, config option is now just an override 2024-01-28 21:08:12 -08:00
Jacob Oxford 620a581227 No need to have changelog from 2011 in Readme.txt anymore. 2023-12-30 15:32:11 -08:00
Ian Curtis 75260f9f2c Clamp LODscale. If the object is drawn at zero we produce an Inf value which will produce Nans with later calculations. 2023-12-29 13:28:10 +00:00
Ian Curtis 0e07f29f80 Amend ambient fog logic 
Should stop the sky flashing in lemans24, and the background totally disappearing in sega rally after a game. The logic here is still not totally understood but works well enough for the games.
 2023-12-27 12:42:32 +00:00
Ian Curtis c039d08c03 Add supersampling anti-aliasing 
Late christmas present. Due to the way alpha works on the model3 adding regular anti-aliasing doesn't really work. Supersampling is very much a brute force solution, render the scene at a higher resolution and mipmap it.

It's enabled via command line with the -ss option, for example -ss=4 for 4x supersampling or by adding Supersampling = 4 in the config file.

Note non power of two values work as well, so 3 gives a very good balance between speed and quality. 8 will make your GPU bleed, since it is essentially rendering 64 pixels for every visible pixel on the screen.
 2023-12-26 18:25:03 +00:00
dukeeeey 33b84c89aa
Merge pull request #122 from gm-matthew/floatZ 
Floating point reversed z-buffer and new clipping code
 2023-12-22 17:06:35 +00:00
gm-matthew 6acb1165d4 Added new uniform bool polyAlpha to shaders 
Added original matrix functions back into Mat4 class though they are currently unused
 2023-12-22 16:31:05 +00:00
gm-matthew 9f66fcaac7 Floating point reversed z-buffer and new clipping code 
Also always draw nodes with culling disabled even if they test as being outside the visible frustum
 2023-12-22 02:00:47 +00:00
dukeeeey 6f409539a7
Merge pull request #120 from gm-matthew/patch 
Fixed Scud Race Plus "ROLLING START" patch
 2023-12-04 13:08:11 +00:00
gm-matthew 5b9e97008c Fixed Scud Race Plus "ROLLING START" patch 
Accidentally patched the wrong memory location in Scud Race Plus
 2023-12-04 02:33:00 +00:00
dukeeeey a19ba3cba8
Merge pull request #118 from firewave/uninit 
Model3.cpp: avoid usage of uninitialized memory
 2023-12-03 18:22:30 +00:00
dukeeeey 11e9b14e73
Merge pull request #117 from firewave/mismatch 
Inputs/MultiInputSource.cpp: fixed mismatching allocation and deallocation
 2023-12-03 18:17:12 +00:00
firewave 71e5baa61b Model3.cpp: avoid usage of uninitialized memory 
```
==213531== Thread 20 SoundBoardNoSyn:
==213531== Conditional jump or move depends on uninitialised value(s)
==213531==    at 0x1A1D1E: CModel3::RunSoundBoardThread() (Model3.cpp:2607)
==213531==    by 0x49BECEA: UnknownInlinedFun (SDL_thread.c:292)
==213531==    by 0x49BECEA: RunThread.lto_priv.0 (SDL_systhread.c:76)
==213531==    by 0x4F719EA: start_thread (pthread_create.c:444)
==213531==    by 0x4FF5653: clone (clone.S:100)
```
 2023-12-03 14:46:23 +01:00
firewave 1cc94b7d79 Inputs/MultiInputSource.cpp: fixed mismatching allocation and deallocation 
Detected by Cppcheck:
```
Src/Inputs/MultiInputSource.cpp:87:3: error: Mismatching allocation and deallocation: CMultiInputSource::m_srcArray [mismatchAllocDealloc]
  delete m_srcArray;
  ^
```
 2023-12-03 14:43:22 +01:00
firewave 5332d8f945 fixed some -Wunused-* compiler warnings 2023-12-02 14:27:32 -08:00
dukeeeey 391e1b9622
Merge pull request #113 from gm-matthew/handbrake 
Dirt Devils does not use the handbrake
 2023-12-01 17:08:09 +00:00
gm-matthew da62fa8640 Dirt Devils does not use the handbrake 2023-12-01 14:48:25 +00:00
Ian Curtis df0034ac1f fix minor error 2023-11-18 22:56:15 +00:00
Ian Curtis bd63400471 Optimise shader code (gm_matthew) 2023-11-17 22:22:50 +00:00
Ian Curtis 44fb32f2a9 fix compilation on linux 2023-11-17 18:03:40 +00:00
Ian Curtis cdf5e4b2b2 Fix transparency depth testing 
The two transparency layers, might not be separate layers at all. We believe the hardware is writing each layer to every other pixel (stipple alpha), then using an anti-aliasing filter to effectively blend the pixels. Because the pixels don't overlap they don't depth test against each other. We are using separate layers to emulate this, so the depth buffer must be saved and restored between the layers.
 2023-11-17 16:07:20 +00:00
dukeeeey de61835f14
Merge pull request #107 from gm-matthew/lod-blending 
Implement LOD blending
 2023-11-17 15:53:14 +00:00
Ian Curtis 8778f98c4a Add missing edge on transluency function 2023-11-17 15:50:04 +00:00
gm-matthew ac53101214 Implement LOD blending 
If two translucent polygons with opposing patterns overlap the result is always opaque
Also the LOD scale calculation depends on Euclidean distance of x, y and z, not just z
 2023-11-17 15:13:27 +00:00
Ian Curtis d726356006 Remove debug code 2023-11-13 23:19:18 +00:00
Ian Curtis 33d65e097f Merge branch 'master' of https://github.com/trzy/Supermodel 2023-11-13 21:17:15 +00:00
Ian Curtis efe3077f53 Fix some stencil issues 
The stencil mask must be set to all 1s otherwise we can't clear all the bits in the stencil buffer. Also we no longer need to save/restore the depth buffer into between priority layers.
 2023-11-13 21:17:06 +00:00
Bart Trzynadlowski 3022e418c7 Added some TODO notes to Main.cpp 2023-11-11 13:57:30 -08:00
Bart Trzynadlowski 47253d8398 Fixed graphics analysis -gfx-state option 2023-11-11 13:55:02 -08:00
Bart Trzynadlowski a57b379498 DSB.h: when generating a debug build in gcc w/ -g, k_framePeriod was causing a linker error. Not sure why k_timerPeriod wasn't but made them both constexpr. 2023-11-11 13:46:05 -08:00
Bart Trzynadlowski ccca9afceb byte_layout attribute for region tag, intended to support Sega Racing Classic 2 ROM extracted from Yakuza 2023-11-11 13:11:15 -08:00
Ian Curtis c40d6ac17b Rewrite the stencil buffer usage slightly, so both the LOS and layered polys work. LOS uses the top bit of the stencil buffer. Fixes some minor issues with draw order in sega rally. 2023-11-10 19:13:37 +00:00