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 Home / General Programming / DirectX 9 D3DXIntersect with first person camera Account Manager
 
Anddos

October 23, 2012, 12:46 AM

I have a first person camera setup and working fine, i am shooting a ray from the camera pos and the direction the camera is facing, when the app first starts the intersect works fine , but when i move around the object to the otherside the is no intersect anymore, why can i only intersect the pologons head on and not all around?
heres a pic to show what i mean , the space the ray is in is object space inverse of (world*view)

http://imageshack.us...psintersect.jpg

thanks if you can help

 
Bad Sector

October 24, 2012, 07:29 AM

The link doesn't work.

But just a quick check from your description... do you check against all possible polygons and sort the intersection points based on their distance from the camera? Basically do you do this:

1. Find all interesection points in geometry
2. Sort points based on distance from camera
3. Pick the closest one - the polygon that has this point is the picked one

 
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