Planetside Software Forums

General => Terragen Discussion => Topic started by: PeterParker on March 21, 2014, 11:45:09 AM

Title: How to avoid the artefact in the following picture
Post by: PeterParker on March 21, 2014, 11:45:09 AM
Hello,

does anybody know this little issue? Dont know how to avoid the lines in the Mountain. It´s not in every place but here and there.

(http://[attachimg=1])
Title: Re: How to avoid the artefact in the following picture
Post by: Oshyan on March 23, 2014, 04:54:23 AM
That is a hole or some kind of severe vertical displacement. It's either an artifact in the Alpine Shader (are you using Terragen 2? not sure if it was ever fixed before TG3), or you're using some kind of harsh mask or something. Posting a TGD would be helpful.

- Oshyan
Title: Re: How to avoid the artefact in the following picture
Post by: PeterParker on March 23, 2014, 11:54:27 AM
Quote from: Oshyan on March 23, 2014, 04:54:23 AM
That is a hole or some kind of severe vertical displacement. It's either an artifact in the Alpine Shader (are you using Terragen 2? not sure if it was ever fixed before TG3), or you're using some kind of harsh mask or something. Posting a TGD would be helpful.

- Oshyan

Thanks for your answer Ohyan :)
I use Terragen 3 Prof.+Animation when i use the Alpine Shader alone this also occurs. I´ve used and Alpine Project i think this was from NWDA and makes good
usage and the rendering is also fine. Here is the File for you:

Peter

Title: Re: How to avoid the artefact in the following picture
Post by: fleetwood on March 23, 2014, 01:42:47 PM
It looks like that one particular seed of the Alpine Fractal produces a fractal with that broken area. Just testing by changing the seed up one or down one number and I can't see visible problems in the area. Also I see the camera is somewhat far from the 0,0 point. I wonder if the "bad" peak being located 24 Kilometers east and 20 Kilometers south from the origin 0,0  point might be a contributing factor ?
Title: Re: How to avoid the artefact in the following picture
Post by: PeterParker on March 25, 2014, 10:06:42 AM
This happens to me all the time when i use the Alpine Shader. It´s not on every Mountain but looks terrible. Havent fix the problem yet. I hope Oshyan will fix it up :)
Title: Re: How to avoid the artefact in the following picture
Post by: Dune on March 25, 2014, 12:56:26 PM
Yes, it's in the alpine fractal, just a bad number. But there's something in the Green Vally node that I'm not too happy about either; fuzzy zone of zero, bound to produce trouble.
Title: Re: How to avoid the artefact in the following picture
Post by: Oshyan on March 25, 2014, 09:10:28 PM
We did fix some issue related to this previously, but it appears there may still be some. It might be only when there is more than 1 lead-in octave though, so you could look at that setting and see if adjusting it helps.

- Oshyan
Title: Re: How to avoid the artefact in the following picture
Post by: N-drju on March 27, 2014, 05:16:21 AM
Isn't it, like, that stichable border is turned off or at 0 value? That would give vertical cut for sure.

Just sayin'.
Title: Re: How to avoid the artefact in the following picture
Post by: Oshyan on March 28, 2014, 03:09:41 AM
Stitchable Border is a Heightfield node setting. The Alpine Fractal is a procedural shader node, not a heightfield function.

- Oshyan
Title: Re: How to avoid the artefact in the following picture
Post by: PeterParker on April 01, 2014, 11:36:41 AM
Quote from: Oshyan on March 25, 2014, 09:10:28 PM
We did fix some issue related to this previously, but it appears there may still be some. It might be only when there is more than 1 lead-in octave though, so you could look at that setting and see if adjusting it helps.

- Oshyan

Thanks so far Oshyan but what do you mean with 1 lead in octave?

-Peter
Title: Re: How to avoid the artefact in the following picture
Post by: Oshyan on April 03, 2014, 07:59:17 PM
There is a setting in the Alpine Shader called "Lead-in Octaves". It defaults to 0. If yours is higher than 1, that may be the source of the problem.

- Oshyan