Lots of newbie questions
Posted: Sat Jan 09, 2016 12:36 am
Hello all,
I am new to bullet and physics engines in general.
I was impressed by the demos, they are really cool to see.
I am wondering if bullet would support physics around a spherical planet with some terrain?
I am guessing I would need to use double instead of float (BT_USE_DOUBLE_PRECISION) if the planet is large.
Is there a way to support a solar system (planets and moons) too with different gravity on each planet/moon?
I read the tutorial section and I saw that they suggest to scale the world between 0.05 and 10 meters so perhaps I would need to keep each planet/moon as separate 'worlds' if they are big or maybe there is a simpler way?
Another question I have is when loading complex models into the world, is there is a tool that could 'extract' a list of simple shapes (collision geometry: sphere, cubes, etc) to get a good approximation of the object instead of all the model details.
Is there a way to use shape subtraction to declare objects (e.g. a bowling ball made of a larger sphere with smaller spheres subtracted from it)?
I am new to bullet and physics engines in general.
I was impressed by the demos, they are really cool to see.
I am wondering if bullet would support physics around a spherical planet with some terrain?
I am guessing I would need to use double instead of float (BT_USE_DOUBLE_PRECISION) if the planet is large.
Is there a way to support a solar system (planets and moons) too with different gravity on each planet/moon?
I read the tutorial section and I saw that they suggest to scale the world between 0.05 and 10 meters so perhaps I would need to keep each planet/moon as separate 'worlds' if they are big or maybe there is a simpler way?
Another question I have is when loading complex models into the world, is there is a tool that could 'extract' a list of simple shapes (collision geometry: sphere, cubes, etc) to get a good approximation of the object instead of all the model details.
Is there a way to use shape subtraction to declare objects (e.g. a bowling ball made of a larger sphere with smaller spheres subtracted from it)?