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Virtua Racing not working properly on Gamecube #89

Closed GoogleCodeExporter closed 8 years ago

GoogleCodeExporter commented 8 years ago 
What steps will reproduce the problem?
1. Load Virtua Racing rom

What is the expected output? What do you see instead?
After the SEGA logo it shows just a blank screen, if you return to menu and
then back to game it shows some frames and then the image freezes.

What version of the emulator are you using?
latest r452

Please provide any additional information below (video settings, console
region,...)
Using a NTSC Gamecube with default SVP cycles 850.
In the genplus-gx 1.3.1 it works fine.

Original issue reported on code.google.com by luisx86@gmail.com on 25 May 2010 at 1:44

GoogleCodeExporter commented 8 years ago 
This is caused by frameskipping when 3D elements are rendered. This is very 
slow on
the Gamecube because of the additional processor that need to be emulated (SVP 
chip)
and the result is that frames are skipped (and not rendered !). I will try to 
fix the
way frameskipping is working (I changed some stuff a while ago but since the 
Wii is
running slightly faster than the Gamecube, I didn't noticed any issues) because 
it
should not be that way.

For the time being, try lowering the SVP cycle input (~650 should be fine), it 
will
reduces the speed of the emulated SVP chip and emulator will skip less frame 
(but 3D
elements 'framerate' will be slower)...

Original comment by ekeeke31@gmail.com on 25 May 2010 at 6:49

GoogleCodeExporter commented 8 years ago

Original comment by ekeeke31@gmail.com on 25 May 2010 at 6:49

GoogleCodeExporter commented 8 years ago

Original comment by ekeeke31@gmail.com on 25 May 2010 at 6:52

GoogleCodeExporter commented 8 years ago 
fixed in r454

Original comment by ekeeke31@gmail.com on 25 May 2010 at 7:34

GoogleCodeExporter commented 8 years ago 
Many thanks, we really appreciate your work.

Original comment by luisx86@gmail.com on 26 May 2010 at 6:13

GoogleCodeExporter commented 8 years ago

Original comment by ekeeke31@gmail.com on 29 May 2010 at 8:03