collision...

[thesanman112]

hello, does anyone know a good way to do collision....

this is what im trying to do...

say you have a quad drawn as the floor...now all the points dont fall on the same plane meaning it ramps...how would i calculate the height that the camera must stay in order to follow the ramp??

[Agamemnus]

This is not collision.

You want the camera to follow the ground.

The simplest solution is to calculate the distance between the camera center and the bottom-most plane and change it constantly so the difference stays constant.

[relsoft]

Actually, collision here would do just as fine.

One way to do this is to make your object enclosed on a sphere. This is what Doc Dav's engine does. Or even points would do fine.

What you do is this:

1. Search google for "kasper fauerby collision detection"
2. Read the doc at least 3x
3. If you're ready do this:
4. Classify each object whether they reside infront, on, or behind the plane(triangle) by using the standard plane equations: ax + by + cz + d = 0
5. Get the distance (d in the plane equation)
6. if it intesects then collide = true so retain xyz values
7. Do an edge-sphere collision to be sure