Semi-procedural Canyon

moodflow · March 04, 2009, 12:37:04 PM

I really like the crisp hardness of the stone walls. Very convincing!

Zylot · March 04, 2009, 01:00:04 PM

These are definitely some of the more convincing rock walls I've seen.

Tangled-Universe · March 04, 2009, 01:28:41 PM

This is an example of how a canyon could look when using 2 walls with the same displacements applied to them.

The displacements render quite fast.
I have a quad 6600 @ 2.4 GHz and 8GB RAM (the latter is not THAT important in speed).
This scene is rendered @ detail 0.9, AA 8, GI 3/3 and with 96 atmospheric samples.
The water also has subsurface volumetrics, though I don't know how much this add to rendertimes.

So, you guys guess: what was the rendertime?

Martin

MacGyver · March 04, 2009, 02:29:46 PM

Let's say 3-4 hours?

folder · March 04, 2009, 02:39:03 PM

hour and a half

Tangled-Universe · March 04, 2009, 02:51:58 PM

Quote from: folder on March 04, 2009, 02:39:03 PM
hour and a half

I wish

MacGyver is quite close...

MacGyver · March 04, 2009, 02:55:07 PM

Quote from: Tangled-Universe on March 04, 2009, 02:51:58 PM
I wish

MacGyver is quite close...

Your specs are quite good so I guessed it would be rather quick

rcallicotte · March 04, 2009, 03:22:15 PM

3 hours and 15 minutes.

Tangled-Universe · March 04, 2009, 03:26:51 PM

4,5 hours

Given the complexity of the setup and the water and GI I think this is very fair.

choronr · March 04, 2009, 03:32:13 PM

Very convincing Martin, I can see a lot of possibilities!

rcallicotte · March 04, 2009, 03:46:52 PM

96 samples of atmosphere! I should have guessed it larger.

Seth · March 04, 2009, 06:41:25 PM

good job Martin

Oshyan · March 05, 2009, 01:12:22 AM

It looks excellent for the most part, but I can't help noticing the render errors at the cliff top edges. It looks like excessive displacement. Is that something you think you'll be able to resolve?

- Oshyan

Tangled-Universe · March 05, 2009, 01:44:22 AM

Here's another one. I think I made a little mistake with the color at the water's edges...hmmmm...

Quote from: Oshyan on March 05, 2009, 01:12:22 AM
It looks excellent for the most part, but I can't help noticing the render errors at the cliff top edges. It looks like excessive displacement. Is that something you think you'll be able to resolve?

- Oshyan

Thanks Oshyan.
It is excessive in a way that it isn't supposed to be there. The reason is quite simple: the displacements of the redirect shader are abruptly cut off by the max heighth of the canyon.
I should be able to restrict them.

Mohawk20 · March 05, 2009, 05:30:51 AM

Are you using a texture based surface? Sometimes the texture on the outcrops looks like it's a piece of paper, cut off with scissors.