Posted 13 years ago2011-07-29 15:05:27 UTCPost #297127
You are right. Basically it's just 2 textures going in opposite directions, so not really a ton. I also used pyramid technique instead of 1 unit wall, so you can't see it as a layer on top. It took a bit of experimenting and it's still not final. With a bit of time you can make it physically correct and look a lot more realistic.
Posted 13 years ago2011-08-01 00:25:41 UTCPost #297227
When you clip a 1-unit deep brush from its centre to all 4 of its edges, creating a seemingly flat surface which is actually raised by 1 unit in the middle.
Posted 13 years ago2011-08-01 08:13:50 UTCPost #297237
couldn't you just leave it all 1-unit thick and null the unused faces? I too am having trouble visualizing this, and feel like i'm trying to over-complicate the idea?
Posted 13 years ago2011-08-01 08:35:35 UTCPost #297240
If you look at the edges of the walls, you would be able to see that there's a gap between the wall and the effect. Using a pyramid stops that from happening.
Posted 13 years ago2011-08-01 12:55:53 UTCPost #297251
2 brushes on each surface you want to be hit by the caustics. Use the pyramid technique to "blend" these brushes into the surface they're on. Create a texture on a matte black background and set it to scroll. Texture the brushes in this, setting their rendermode to additive and FX amount to 255 (this will hide the black parts of the texture). Set one of the brushes to scroll the texture in the opposite direction from the other.
Posted 13 years ago2011-08-01 19:09:18 UTCPost #297259
Thanks Daubster. Mine is generated too, but that's not what I mean. I had to try a lot of different types of water caustics textures to find one which looks good because most of them looked terrible. And I find the best textures those which are blurry and the worst which are sharp and detailed.
Posted 13 years ago2011-08-01 22:34:03 UTCPost #297268
I've seen this done before in a mod. Nice work! I was looking at water the other day and noticed the reflection and how beautiful it was and this mimics it great. I'll have a try at it with my nice water texture.