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MARS_999

"MegaTexture" Doom3 tech???

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I just got my Sep. "PCGamer" and they talk about "MegaTexture" tech that John Carmack is using in the Doom engine now. I don't know much more about it than it is just one huge texture thats stretched over the terrain??? Anyone else know about this...

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It appears to be some kind of texture which they can use to uniquely cover a landscape. How it works, I don't know... My *guess* is they extract the high frequency noise out of an artist drawn image, encode it and use it to procedurally generate details from there. For details the high frequency component is all that matters really, the low frequency stuff doesn't change as much.

At least, that is how I would do it.

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Mind you, there's nothing official out about this just yet, but everything I've heard seems to suggest that it's a form of Clip Mapping. My Net connection is acting funny, so you'll have to look it up yourself till I can edit in some links.

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Quote:
Original post by Toji
Mind you, there's nothing official out about this just yet, but everything I've heard seems to suggest that it's a form of Clip Mapping. My Net connection is acting funny, so you'll have to look it up yourself till I can edit in some links.


I have looked up clipmapping and it sounds like what he calls megatexture I am sure he has made some changes to it though...

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