Recent posts
#21
Last post by sboerner - April 05, 2024, 10:03:07 AM
Saw your experiment in the other thread, very nice. The approach I ended up using is a bit of a cheat. It uses a vector displacement map generated from the riverbed and surrounding terrain. The VDM is then blurred slightly in Photoshop and used to displace a lake object or sphere and offset from the base terrain.
The line for the VDM is pulled out of the main network after the riverbed and banks have been displaced but before detailed displacements and fake rocks. The amount of blur depends on the scale. The more blur, the faster the water. My scale is 2 pixels per foot, and the blur I use is between 0.5-1 pixel.
Because this is a cheat you have to watch for places where water wouldn't naturally flow. If you're careful, the VDM can be edited in Photoshop to correct some of these errors. Others can probably be fixed with smoothing, etc., but I haven't gotten that far yet.
I'll attach an early test (very rough) that shows how it works with a taller waterfall. This one was about 12 feet, historically much too high for this landscape.
#22
Last post by sboerner - April 05, 2024, 09:45:44 AM
This looks very good. I'd say descending water may be *the* hardest thing to simulate.
#23
Last post by Stormlord - April 05, 2024, 08:19:06 AM
Descendin water is hard to simulate, so well done for "JUST" an experiment....
STORMLORD
#24
Last post by Dune - April 05, 2024, 04:50:44 AM
I thought I had the solution once, but can't seem to find it anymore. Can anyone shed some light on this. I have a sloping terrain and part of it is lowered for a river. I need to have the altitude of that terrain for a sloping altitude mask (to make a wet waterline going downhill with the river).
I know a say zero altitude mask (position in terrain) can be warped by something (displacement, or vector displaced scalar), but I can't get it to work.
Added a basic test, which is just a start...
#25
Last post by Dune - April 05, 2024, 02:10:00 AM
TG experiment for a change. Nothing much yet, but I may refine it. One of the challenges is to make a wet waterline go with the descending river.
#26
Last post by Dune - April 05, 2024, 02:03:23 AM
Well, it is a word (but it was red underlined here while typing, so I thought it wasn't). So, would you care to share what was the simpler method? Base ground smoothed in TG and warped strata or simple shapes? I'm just doing some experiments in that direction.
IMO TG can handle a lot of load, and I guess you will not exceed a gig, will you? I found that TG loads an obj of say 700MB in a few seconds, while Lightwave for instance takes half a minute or so. I think it's better if only RAM is used, but I think disk memory can be used as well, but is slower (but I don't delve into techs so much).
It would indeed be handy to have a small (floating) window or a very small line of text somewhere in view that tells you load and memory use. Maybe Matt can implement something like that... some day. Task manager would be the only other option, which is what I occasionally do.
#27
Last post by pokoy - April 04, 2024, 06:42:43 PM
Nevermind, the actual download was a bit harder to spot and I haven't downloaded the entire package, only a part of it.
Works now, I can immediately see that I will use OCIO from now on.
#28
Last post by pokoy - April 04, 2024, 05:59:02 PM
Hey all, hopefully this is solved fast.
I'm trying to setup OCIO:
- downloaded the ocio config files, copied to 'C:/OCIO'
- created the environment variable (tested both user and system)
- Name: 'OCIO'
- Value: 'C:/OCIO/ocio_cofigxyz.ocio'
- Also tested: 'C:\OCIO\ocio_cofigxyz.ocio'
- Restarted PC
- Open Project Settings in TG >> CM dialog says < No OCIO config >
What am I missing?
#29
Last post by sboerner - April 04, 2024, 11:51:24 AM
If "editability" isn't a word, it should be. (Actually I think it is.)
Thanks for the comments. ZBrush was not used for the water, though. I did try it but wasn't satisfied with the results (my ZB skills are probably not sufficient). The solution turned out to be much simpler, and is something that probably could be used in many situations.
I'll be spending many weeks modeling -- many buildings will be required for this, plus the aqueduct "hero object" and many human figures. Keeping a close eye on the load weight. I'm not completely clear how TG manages memory, but it seems the entire scene and linked assets must be loaded into RAM before rendering. During rendering disk memory can be used if needed. Is that right?
It would be handy to have an easy way to check memory use within TG, like MeshLab.
#30
Last post by gao_jian11 - April 04, 2024, 05:07:29 AM
gaea 2 is still in ALPHA, adjusting parameters sometimes does not respond, some nodes do not have parameters, they will have a lot of improvements.
With the new erosion mode, I remember gaea erosion is the erosion in TG, I wonder if the erosion in terragen will also be updated?
