Collisions
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Hello. I am attempting to drop a sphere using the gravity setting in SP onto the roof of a complex structure (structure is a number of discs overlapping some higher than others and also some vertical discs sticking up from between the horizontal discs). I was wondering if there is a way of marking what points on this structure that the sphere hits or collides with? (i.e. a sort of paint over the parts it rolls over). If not then is anyone familiar with another 3D modelling software that can at least roll a sphere over a structure because in sketchup it seems the sphere can only be dragged across which is difficult to control and may not roll over certain parts of the structure. Thanks.
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Not totally sure what you're asking. Can you upload the model?
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No sorry I am unable to upload the model. I suppose I complicated the question but what I am actually asking is if there is any building (even a simple office building with a flat roof) is there a way in SP to roll or drop a sphere over it and mark where the sphere collides or touches the building? Am I better off using a different modelling software? I hope this helps.
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Make it a group (you probably did this anyway), then right-click, SketchyPhysics, Shape, and select 'staticmesh'. It won't be able to move, but the sphere will be able to collide with every face in the building. Making complex, movable shapes is a little harder; basically, you need to make a compound shape out of lots of the normal shapes, like box, cylinder, etc, then group them all together and set that group's shape to 'default'. If you're making, for example, the body for a moving car, make a simplified shape out of these basic shapes, and group them together with the main car body. Inside the overall group, set the main body's state to 'ignore', and hide the physics objects.
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