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Re: A7 BSP new rendering engine
[Re: JetpackMonkey]
#119810
03/30/07 20:39
03/30/07 20:39
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Joined: Aug 2000
Posts: 7,490
Orange Brat
Senior Expert
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Senior Expert
Joined: Aug 2000
Posts: 7,490
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The fact that the Pro BSP will work with arbitrary geometry makes the move to a pro only feature a bit easier to swallow. If it was the same old BSP, then this wouldn't be the case. Quote:
It may help to think of it this way, with A7 you are getting an updated rendering engine. This engine uses a new format (ABT) that improves on the old (BSP) format with much quicker build times and, in many cases, improved performance.
Based on the current private beta, this isn't the case when using high quality lightmaps, or at least in my limited experience with it. In the case of one specific level (the arched "Super Nintendo" hallway) the lightmap calculations take 3 minutes when in high mode. In low mode it's a mere 10 seconds, however this is how fast the current A6 build takes when in high mode. Performance during play is also impacted, but it is a detailed scene where the framerate hit happens but again it doesn't get hit in the current A6.
I don't know if the current beta compiler is buggy when it comes to building or if that is simply the tradeoff. Regardless, it's still much faster than BSP with visibility turned on.
My User Contributions master list - my initial post links are down but scroll down page to find list to active links
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Re: A7 BSP new rendering engine
[Re: Orange Brat]
#119811
03/31/07 10:48
03/31/07 10:48
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Joined: Aug 2001
Posts: 2,320
Alberta, Canada
William
Expert
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Expert
Joined: Aug 2001
Posts: 2,320
Alberta, Canada
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Quote:
The fact that the Pro BSP will work with arbitrary geometry makes the move to a pro only feature a bit easier to swallow. If it was the same old BSP, then this wouldn't be the case.
I agree, that about sums it up. I just always believed BSP would never allow arbitrary geometry, and was outdated because of it. Partly based this on thinking ABT/Octree was being developed as the future replacement. And now hearing BSP allows arbitrary geometry is a bit weird... Then again, I don't know a whole lot about the inner workings of engines. 
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Re: ABT octree and BSP technical description
[Re: William]
#119814
04/02/07 19:55
04/02/07 19:55
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Joined: Jul 2000
Posts: 8,973
Bay Area
Doug
Senior Expert
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Senior Expert
Joined: Jul 2000
Posts: 8,973
Bay Area
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Quote:
So you are saying that the A7 Pro BSP has been rewritten and will be faster then the A6Con BSP engine?
No, I didn't. I said it can use arbitrary-shaped geometry and work with ABT.
It can also make your project faster than a ABT version *if* you use it right.
Quote:
I wish JCL would show a specification list for A7
He will once we know exactly what will be in A7. Unlike some other companies (*cough*Microsoft*cough* ) we don't like to promise things we can't deliver on.
If we tell you "X" is going to be in A7, and we discover that we can't finish feature "X" in time. Either we have to delay the release of A7 (bad), release a half finished "X" (the worse solution), or be accused of false advertising (ugly).
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