Recent content by Oogst

Thanks for the explanation! That sounds pretty heavy actually, although in an entire shader it is relatively little. This does make your implementation theoretically faster, though. :)

Hmm, very interesting that they used this kind of data for a videoclip! The principal problem of working with this kind of data is that you need something to turn the point cloud into a polygonal mesh surface. Just picking the closest points and making triangles with those, will not...

Ah, okay, I see that I really have to dig into shader model 3 and 4. I never went beyond shader model 2... :oops: Does anyone have a link to a serious performance comparison between these two? I always read "it's slower" on these kinds of things, but no one ever seems to have numbers, like...

What do you mean with "the gradient version"? Is that some situation in which dynamic branching has a certain performance?

That is true, but that could also be achieved by using an if-statement and only looking up in the right texture, because the values from the other three textures are ignored anyway. I never got around to trying how much performance would actually be gained by that, though, but I guess you are...

That his technique would be better was actually my own conclusion when I did not yet understand how this technique works. :)

Ah, okay, that is clear, but doesn't that make your technique hardly any more efficient than my version? What is the benefit of using a cubemap in this case?

Ah, okay, thanks for the explanation!

I am trying to post a message in this topic: http://forum.beyond3d.com/showthread.php?t=49319 After doing so, I see the message. When I then go back to the main forum and then re-enter the thread, my message is gone again. If I try to re-post then, I get a "duplicate post" error. I really...

Ah, that is a pretty interesting variation to my original Interior Mapping technique! It is cool to see other people experimenting with other approaches! I cannot run your demo, though: I have an Nvidia DX10 card. It is a pitty that your technique requires DX10.1: this makes it much less...