Ray casting

[GundamO]

Hi guys,

i am attempting to cast a ray from my model downwards against the terrain to set the models height, only problem is that i am lost on how to write the actual ray, i know the start position of the ray will be the models position but i am not sure how to write the end of the ray.

i have already tried using the getheight function for updating the height but because i am creating a platformer with jumping, when i am on top of a platform it doesnt register that the height of the model is not the terrain but the terrain PLUS the height of the platform and thus my jumpin wont work, but i digress.

if any one could help me with how to write the end point on the ray. Thanks in advance for any help

[ent1ty]

Code: Select all

vector3df end= start;
end.Y-= 9999;

Edit: I was first

[CuteAlien]

Just subtract a real huge value from your y-axis of the startpoint to be sure it's large enough. If you know the the maximal size of your world you can use that value.