I fixed intermittent dirt effect bug. Probably, the dirt effect will accelerate drastically in first lap in race, so I recommend to set 'AccelFactor' in Settings.ini to 100 or less. Or set 'AccelLimit' to a half or less.
http://www.mediafire.com/?l17xmcx0y4cpgh1
http://www.mediafire.com/?l17xmcx0y4cpgh1
Yeah, it'll great. But I'm thinking about Perlin noise for texture variations. So I'll try some experiments. If I decide to use conventional texture technique, I'll let you know.Great stuff thanks for explaining. If you like I can create some dirt textures/sprites for your tests for the next version?