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firstly, is bod2d friction like mu in high-school physics?

I have a compound body with two wheels on revolute joints one of which has a motor. When I try to drive it up an 30 degree slope my driven wheel spins and i don't get up. I have set friction on all bodies as 0.9. If I remember my high school physics mu approx 1 should let me climb a slope of nearly 45 degrees but my wheels slip.

secondly as I increase friction towards 1 my model becomes increasingly unstable. i have some angular damping set but climbing the ramp the physics sometimes seems to enter some kind of positive feedback condition and the moving vehicle disappears up at a silly velocity, Anyone seen anything like this?

thanks!

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在我的游戏中，我通过将摩擦力设置为大于 1 来解决车轮的低摩擦力。所以你应该尝试一下。不确定您所描述的那种不稳定性。

于 2014-03-29T19:55:56.620 回答