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Print at Dec 17, 2025, 1:06:20 PM

Posted by Dingenskirchen at Mar 17, 2010, 2:57:20 PM

stretched wall textures
I found that hi-quality photographic renders (V2.3b21, quality settings 3 and 4) often exhibit horizontally stretched wall textures, in which the texture is not tiled / repeated over the course of the wall, but stretched to cover its entire width. Vertical tiling, however, works fine. This problem only shows up in hi-Q settings (3 and 4); lo-Q settings 1 and 2 (just like the 3D view, which uses quality 1) are fine. (system: XP SP2) Of course, a hi-Q rendering is the final result that all previous effort is aiming at, so I am quite lost here...

At first I thought the funny-looking textures resulted from interference patterns on the lo-Q settings, but hi-Q with filtering and anti-aliasing produces exactly the same result. So I cross-checked by exporting a part of the wall to .OBJ format and re-importing it. Voilà: the re-imported wall rendered just fine, while the original wall still showed the stretched texture.

I have as yet not found any pattern to where and when exactly this happens: I had slanted walls and walls which did not reach the maximum height of the entire model; I checked where the walls were facing, which side (left/right) was affected, whether the faulty wall was connected to others or stand-alone, whether it was connected to straight parts or corners... There is no criteria I could find that shows consistently correct or faulty behaviour here... sad

I suspect this may have something to do with the "do not re-start the texture at every wall opening" fix you did recently - although I still have one single spot in my model where the left side of a window does re-start the texture! (maybe that's the problem?) I tried refreshing the faulty wall, even deleted and re-did it completely - all to no avail, the window still breaks the texture continuity. confused

I would post pictures to illustrate this, but I don't know how to upload any, and I have no webspace available. If I overlooked the obvious "upload" button, I will gladly provide my faulty renderings. smile

Anyway, thanks for your constant improvements of SH3D. smile

Maybe this one can be the next. biggrin

Posted by hansmex at Mar 17, 2010, 5:07:04 PM

Re: stretched wall textures
Dinges:

Try www.mediafire.com for all the free webspace you need.
Using the button HTTP:// above you can link your file.

Hans
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Hans

new website - under constuction
hansdirkse.info

Posted by Dingenskirchen at Mar 17, 2010, 5:36:33 PM

Re: stretched wall textures
@hansmex: Thanks for the tip.

So here we are:

1. All wall surfaces in this image have been exported to .OBJ format and then re-imported to SH3D. correct texture

2. The bottom part of this wall is the original SH3D model, the top part (above the window) is .OBJ re-import. The original wall shows a
stretched texture.

Posted by Dingenskirchen at Mar 18, 2010, 2:13:53 PM

older versions
I just checked older versions of SH3D (2.1 and 2.2), and they all show exactly the same texture behaviour (in this respect) as the latest Beta, so it should not - as I first guessed - be related to the bugfix I mentioned above. thinking

Posted by Puybaret at Mar 18, 2010, 7:07:03 PM

Re: older versions
Dingenskirchen, thank you for tests.
After detailed tests, I discovered problems too and I'm going to try to fix them.
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Emmanuel Puybaret, Sweet Home 3D creator

Posted by Dingenskirchen at Mar 18, 2010, 7:37:20 PM

Re: older versions
Thanks a lot for tackling the problem! smile

I have invested quite a bit of work in my model and would love to see perfect renderings in the end. wink

One thing I forgot about this: I have observed that on my wall with several windows, each window edge seems to re-start the texture and stretch it up to the next window edge, where it is re-started again; so it might have somehting to do with the re-starting of textures after all.

Oh, and I don't know whether this belongs in a new thread, but it seems a smaller problem to me: I also found that grouping objects (nice function!) works fine, but un-grouping removes the colours and textures from the affected objects (I ended up with chrome trees that way tongue

).

On the positive side, I am very fond of the new ability to map textures on furniture. Nice job! biggrin

Posted by Puybaret at Mar 19, 2010, 10:17:17 PM

Re: older versions
I fixed the stretched texture bug in version 2.3 Beta 22. smile

I hope it will work for you too.

Could you detail how you reproduce the bug about textures and colours removed from ungrouped objects? I didn't succeed to reproduce it.
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Emmanuel Puybaret, Sweet Home 3D creator

Posted by Dingenskirchen at Mar 20, 2010, 1:00:59 PM

Re: grouping
Yai, it wurks!! dancing

Thanks a lot for fixing that! biggrin

I just re-checked the grouping/ungrouping thingy and found out that the problem only occurs if I change the group's name before un-grouping it (when I make a "tree" from a brown pipe and a greenish blob, it should at least have a proper name, not just "group -2-" wink

). The "stem" loses its brown colour, and the top loses its plant texture, resulting in a shiny metal... lollipop tongue

So it seems that when changing a group's attributes, individual attributes are overwritten.

Posted by Puybaret at Mar 20, 2010, 8:10:33 PM

Re: grouping
Thank you for the description of the bug. I fixed it in version 2.3 Beta 23. smile

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Emmanuel Puybaret, Sweet Home 3D creator

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