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Help with BSPs?
I'd like to use a BSP Tree in my current engine (for a game). However, all the tutorials I find come with software rasterization only.
This just ends up confusing me a ton, as I know nothing about software rasterization, nor do I wish to pursue that.
If anybody knows where I can find the source of an engine that uses BSPs that's in OpenGL I'd appreciate it, espescially if it's accompanied by some type of tutorial webpage or is well-commented.
C++ or C, though C++ is preferrable, as I like OO 
THanks.
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Re: Help with BSPs?
I have some code on my webpage to generate a leafy BSP tree. The example is really simple and I tried to comment it so you should be able to use it.
Nate http://nate.scuzzy.net
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Re: Help with BSPs?
Hi!
The BSP-FAQ by SGI is good, I think.
http://reality.sgi.com/bspfaq/
Chris
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Re: Help with BSPs?
Nate, I got your demo and it looks like I can learn a lot from it, but I wanted to ask you - what is the difference between a "leafy" BSP tree and a regular one?
Thanks for the code...now to sit and stare at it till I understand it
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Re: Help with BSPs?
In a nodey BSP tree faces are stored at nodes. So at every node there will be a list of faces that are coplanar with eachother. In a leaf based BSP tree faces are stored in leafs, nodes with no children. So rather than storing the coplanar face in a node it is pushed down either the front or back of the current node. The faces that are stored in a leaf will form a convex hull which allows for the faces to be rendered in any order with backface culling enabled. If you need anymore help just email me and I can give you a bunch of misc links I have collected over time.
Nate http://nate.scuzzy.net
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