A branch of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space.
2
votes
1answer
244 views
How to calculate collision normal between two AxisAlignedBox's?
I'm writing a physics simulation in Ogre3D and I'm trying to figure out how to calculate the collision normal between two Ogre::AxisAlignedBox's.
I am checking for collisions using the "intersects" ...
2
votes
0answers
56 views
Decomposing a concave mesh into a set of convex meshes
I'd like to be able to decompose a concave mesh into a set of convex meshes for 2 reasons:
Transparent rendering
Physics shapes
Is there an algorithm that takes a set of triangles (concave) as ...
1
vote
0answers
55 views
How to trace contour of shapes with holes?
I am experimenting with the RVO2 library for collision avoidance in a 2D simulation. This library supports specifying arbitrary obstacles as a list of vertices. The obstacles must be full shapes, i.e. ...
0
votes
0answers
43 views
Top down 2D camera in relation to keyboard commands
I have a basic 2D camera:
transform =
Matrix.CreateTranslation(-position.X, -position.Y, 0) *
Matrix.CreateRotationZ(-rotation) *
Matrix.CreateScale(new Vector3(zoom, zoom, 1)) *
...
