VBGamer

I've just canned my full 3D game in favour of a 5D engine,... anyway, one of the possible stumbling blocks was this problem: If I draw a line from point 1 to point 2 (both 3D) how could I check if they intersected with any triangles in the scene? Say, in Quake player shoots a weapon - how do they check where if it didn't go through a wall before hitting the target? I've seen loads'a examples but they're all really computationally complicated; how then does Q3 do it and still hold down a monster frame rate? especially in the middle of a fire-fight? Jack,