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Bug in textures?
Emmanuel:
These last few weeks I found some odd behaviour of textures. When importing a texture, I can set a "normal" value for it. When applying the texture to some models it looks good. When applying the same texture to other models, I have to increase its size approximately hundredfold.
The image shows a LeMog slate texture applied to a roof and to a cube. To be visible on the roof, I had to set it to 8000! As you can see, it is far too big to show on the box next to it.
I have seen the same behaviour when applying a texture to the curtain model.
Hans
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Hans
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Re: Bug in textures?
Hi Hans,
After reading your post I had to try this, I noticed the applied texture sweep across the model as it was mapped in Sweet Home, so then had a look at the roof model in Art of Illusion which helped provide the answer. I can offer a solution if I may?
The roof object is actually a collection of many parts, each tile has its own surface, so the applied texture is actually mapping in miniature on every tiny roof tile, unlike the cube which maps the texture across the whole surface in one go.
Hope this helps, db4tech
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last edit by db4tech at Jun 10, 2010, 11:44:27 PM]
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Re: Bug in textures?
I had the same idea as db4tech at first. But fortunately, he's wrong (I say "fortunately" because if he was right, this would mean that this bug could happen on all objects made of multiple shapes): the generated texture coordinates take into account the size of the whole object. If you try with the updated models (Blue slate roof and Red slate roof) where all the slates are managed as only one shape, you'll get the same result. Maybe this problem is due the fact that he slates are inclined. I'll have to investigate further.
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Emmanuel Puybaret, Sweet Home 3D creator
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last edit by Puybaret at Jun 11, 2010, 8:34:19 AM]
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Re: Bug in textures?
I found the bug and fixed it. I'm annoyed because it's a regression from version 2.3, and it's bound to the internal size of the 3D models. For 3D models with a width, a depth and a height of 1 unit, like the box provided in Sweet Home 3D, that won't change anything. But for the other models, like the roof used by Hans, the result will depend on whether you use version 2.4, or version 2.3 and future versions. The workaround is to resize the width, the depth and the height of the item to 1 cm, export it to OBJ and reimport it (this can be done with the Copy as new furniture plug-in). Even if the release of version 2.4 is only 2 weeks old, I wouldn't mind to release version 2.5 now, if some of you really needs this fix. Please tell me.
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Emmanuel Puybaret, Sweet Home 3D creator
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Re: Bug in textures?
Emmanuel:
Indeed, I was already thinking it was a regression bug, because I never had that particular problem in v2.3. Meanwhile I found that it affects quite a few models... If you don't like publishing v2.5, maybe I could convince you to publish v2.4.1? :-)
Whatever solution, thanks for investigating this. If I have to wait until the next release, that wouldn't be a big problem, because I found out that I can have several texture sizes in the same project.
Hans
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Hans
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Re: Bug in textures?
I just released a version 2.5 Beta. Could you check it works ok for you? This version brings only optimization and a few bug fixes.
Note from developer: Version 2.5 with the bug fix was released on June 21, 2010.
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Emmanuel Puybaret, Sweet Home 3D creator
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last edit by Puybaret at Jun 22, 2010, 12:23:56 AM]
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Re: Bug in textures?
Good to hear you found the solution. Also in connection with your reply to my post, it's one of those times when it is nice to be wrong!
Without the fix it would have been difficult trying lots of textures for suitability for models like this.
Thank you for 2.5 Beta
I'm not sure how the global illumination works in Sweet Home so please ignore this request if I have misunderstood. While you are working on 2.5 would it be possible to adjust the sunlight position within sky dome, so instead of the light being outside of the texture dome it could be just on the inside? I am just thinking how much light reduction happens as soon as a sky texture (even a light coloured one) is applied.
db1.2tech
Edit: Added request. Edit2: Fixed glaring typo
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[Edit 2 times,
last edit by db4tech at Jun 12, 2010, 3:10:21 PM]
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Re: Bug in textures?
Emmanuel:
A picture tells more than a thousand words.... All models were imported "as is", no changes, size 1x1x1 or whatever is specified in their original form, textures set at a reasonable size (approx 80 cms). The curtain with texture now behaves the same way it did before. The cube didn't give problems, all other three models did.
Thank you very much for this bug fix!!
Hans
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Hans
