Recent posts

#11
Image Sharing / Re: Canyon series 1
Last post by Dune - March 26, 2024, 02:34:21 AM
Thanks Martin. Interesting fact about the cache detail. I wonder how it would look in PT.
#12
Image Sharing / Re: Exoplanet SciFi (MP4 2024)
Last post by Uwe Kronemann - March 25, 2024, 07:18:13 PM
NEU LINK TO DAILYMOTION
https://dai.ly/k3f3guaWej0VIHAkPxo
#13
Terragen Discussion / Re: Pixel gaps in rendering
Last post by sboerner - March 25, 2024, 03:29:07 PM

QuoteIf you like, can you share an .exr which exhibits this behaviour?
Hi Martin -- The EXR file is a commercial file from Megascans . . . but I bet it wouldn't be hard to make a generic file that would trigger the error. Now, I think the error is benign (or it simply cancels any displacement or bump). At any rate it's probably not related to the artifacts as I first thought. But let me get back to you.


QuoteThis could an image filter problem where a sharpening filter produces negative pixel values. Try using the Cubic B-Spline filter, it might help.
Pokoy -- This makes sense. I can see how a filter might be the culprit. I've always used Mitchell-Netravali. 

For post effects, Soft Clip Effect, Compensate Soft Clip, and Contrast (0.25) are all enabled. I believe these are the default settings. (Up until recently I always rendered straight to EXR and did not worry about the Tonemap tab. But I've started rendering to 16-bit TIFF because they import very nicely into Lightroom. So now, it seems, these settings are applied.)

It's probably best to try one thing at a time. I'll start by setting the filter to Cubic B-Spline.

Thanks! 
#14
Image Sharing / Beautiful tufflandscape
Last post by Uwe Kronemann - March 25, 2024, 03:20:44 PM
I found a very beautiful new texture. Texture to make tuff-landscapes.
Webside: iStockphoto.com   Searchword: tuff or tuff texture . . .
(Texture is expensive but very beautiful and useable)
#15
Terragen Discussion / Re: Pixel gaps in rendering
Last post by pokoy - March 25, 2024, 02:37:39 PM
This could an image filter problem where a sharpening filter produces negative pixel values. Try using the Cubic B-Spline filter, it might help.

Also, are you using any of the Post Effects? If so, they might not clamp values below zero produced by image sharpening and result in strange artifacts.
In any case, using a soft filter might help to sort this out.
#16
Terragen Discussion / Re: Pixel gaps in rendering
Last post by Tangled-Universe - March 25, 2024, 01:47:54 PM
Intriguing issue, but annoying for you for sure.

If you like, can you share an .exr which exhibits this behaviour?
#17
Terragen Discussion / Re: Pixel gaps in rendering
Last post by sboerner - March 25, 2024, 12:56:21 PM
They're back. I thought last night's results might be too good to be true. One artifact has appeared so far in the rendering I started this morning.

The FreeImage bug is real, anyway. Good to know that. As far as the Space Invaders go, I'll wait to see if anyone from Planetside pops in here. If not I'll contact them by email.

:(
#18
Image Sharing / Re: Nice place for R&R
Last post by Stormlord - March 25, 2024, 10:59:16 AM
Oh... an update... looks good, but the house is too dark (texture illumination set to 1.0, like at the plant tut?)
And Ulco is so right, more bushes would be  great!

STORMLORD
#19
Terragen Discussion / Re: Pixel gaps in rendering
Last post by sboerner - March 25, 2024, 10:45:09 AM
I'm curious, too. In the meantime, last night's rendering came out fine. Running another one today while I work on other projects. If I can get 3-4 renderings in a row without the artifacts, I'll be satisfied that it's fixed.

I use EXR files a lot: For VDMs, displacements and sometimes even for masks, especially if they are paired with color adjustment shaders for choke/spread control. I just like the headroom, and displacements look way better. If you compress them the file sizes are manageable.
#20
Image Sharing / Re: Nice place for R&R
Last post by pclavett - March 25, 2024, 09:56:21 AM
You are right Ulco, those trees are in the way of the view...... was too eager to try these beautiful trees from 3D-Shaker ! Another render on  the way with the Path Tracer. Will try to lighten the cottage somewhat, although this kind of dark brown is very popular these days in Canada. I did lighten the the load of plants on the ground as they were suffocating each other. Also put in some randomness in the flower bed as it looked too even. The rocks were also changed on the base of the chalet as one of the rocks has a distinct area that appeared repetitive. Will post when ready and work some more on the project with those trees changed for something less obstructive. Thanks for the suggestions !