0
votes
3answers
91 views

Keeping raycast on the same level

I want my raycast to end at certain height(red line). But as the game is 3D and the camera rotates I can't use a fixed magnitude. What I thought was a stroke of genius, I figured I'd project the ...
6
votes
1answer
559 views

Why doesn't Unity's OnCollisionEnter give me surface normals, and what's the most reliable way to get them?

Unity's on collision event gives you a Collision object that gives you some information about the collision that happened (including a list of ContactPoints with hit normals). But what you don't get ...
4
votes
1answer
484 views

Finding if a point is inside of a mesh (Point-in-polyhedron)

How can I find if a point (Vector3) is inside of a mesh? Would this work for both concave and convex objects? I read somewhere that if you raycast in both directions of every axis (X, -X, Y, -Y, Z, ...
2
votes
1answer
1k views

Raycasting in Unity3D?

I have a game object on screen represented by a cube (but say it was a quad or something else all the same). How do I raycast to check intersections? Keeping in mind I may not be raycasting fora ...