Changed the ground color and brightened up the sky in preparation for an upcoming demo called "Unbiased Stunt Racer" (courtesy of Anonymous blog reader :). It looks a little bit more realistic now (480p video on GTS 450):
"Unbiased Physics Games v1.0" executable demo at http://code.google.com/p/tokap-the-once-known-as-pong/downloads/list
2 comments:
The video looks great! to bad the wheels go through the ground a couple of times, is the only glitch I can see. What about a sky/sun system to really get the realism going :D
Thanks. The wheels going through the ground is a glitch in the Bullet physics simulation, which performs collision detection between the wheels and other objects through ray casting. The faster the vehicle, the greater the chance for interpenetrating objects. I could increase the physics simulation accuracy by increasing the number of iterations per frame, but it's quite taxing on performance, so I'll leave it like that.
About the sky/sun: there is a light emitting sphere and explicit shadow rays are traced. A real physically correct sky/sun system (like Preetham sky) is something I will look into in the future. I have modified some things in the sampling (removed the stratified sampling) to improve realism at the cost of noise, which you will see in my next demo.
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