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Print at Dec 21, 2025, 5:34:49 AM

Posted by hansmex at Oct 26, 2012, 2:41:13 AM

Bug in textures?
Emmanuel,

Today I downloaded and installed SH3D 3.7 and the Texture Editor 1.0.
I made a SH3T file with a number of textures using the Editor, and imported it in SH3D. All works well, so far.

I then applied a few random textures on a box, and noticed that with some textures the box turns transparent when seen from certain angles. I checked, and found that these are PNG files. I attach the file that shows this.

I have used these textures before and never noticed this behaviour.

Hans
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bug transparent texture.sh3d (909362 bytes) (Download count: 376)

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Hans

new website - under constuction
hansdirkse.info

Posted by Puybaret at Oct 26, 2012, 8:46:48 AM

Re: Bug in textures?
Thank you for your feedback, Hans. smile

I also noticed some weird issues with some texture images when they use transparency, and this problem was already there in version 3.1 when I added support for transparent PNGs. sad

I think it's due to OpenGL or maybe the library that calls OpenGL, so it will be almost impossible to fix, and you should use transparent PNGs only when necessary.
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Emmanuel Puybaret, Sweet Home 3D creator

Posted by Gaytan at Oct 26, 2012, 10:56:07 AM

Re: Bug in textures?
Could this have to do as well with e.g. the cylinder; when looking from it from 'Visitor' mode, it shows squared at the bottom, whilst being a round cylinderâ€¦

Rounded walls really show as 'round' at the bottom but cylinder(s) look squared at 'ground level'â€¦.

Rgrds,
Ed

Posted by hansmex at Oct 26, 2012, 12:45:30 PM

Re: Bug in textures?
Emmanuel,

Maybe I didn't explain well, but these textures don't use transparency as far as I can see. (I checked in Gimp.)
Still, they look transparent from certain angles.

H
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Hans

new website - under constuction
hansdirkse.info

Posted by Puybaret at Oct 26, 2012, 2:20:13 PM

Re: Bug in textures?
Ed, I don't think it's the same issue as the one you described. The issue you talk about, is due to the way surface vertices and surface normals are designed in a 3D model made only of triangles. Posting an image showing what you want to explain would definitively help to remove doubts about your explanations.

Hans, the texture image applied on the bookcase defines a transparent color. Maybe this color is not actually used in the image, but the issue is that Java considers it as potentially transparent though. When removing all information about transparency, the problem you reported disappears.
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Emmanuel Puybaret, Sweet Home 3D creator

Posted by hansmex at Oct 26, 2012, 4:45:54 PM

Re: Bug in textures?
E,

But it's the cube that's transparent...
Do I understand you incorrectly? Or maybe you me?

H
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Hans

new website - under constuction
hansdirkse.info

Posted by Puybaret at Oct 26, 2012, 4:57:30 PM

Re: Bug in textures?
Strange!?!
On my computer, the cube doesn't show any problem. sad

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Emmanuel Puybaret, Sweet Home 3D creator

Posted by Gaytan at Oct 26, 2012, 9:36:39 PM

Re: Bug in textures?
Hi Emmanuel,

Here's the link / picture. It shows clearly at the 'bottom of the cylinder', where it sits on the ground, so to speak:

http://cl.ly/image/390J2z25021e

wink

Posted by Gaytan at Oct 26, 2012, 9:43:11 PM

Re: Bug in textures?
Hi Emmanuel,

Me again; since last screendump I played with 'extending the floor (terrace)' over the cylinder and .... now it shows round at the base:

http://cl.ly/image/0K2L0S0e290m

Typical, or ....?

Best regards,

Ed

Posted by Puybaret at Oct 26, 2012, 9:44:28 PM

Re: Bug in textures?
Ed, your cylinder seems to be at lower level and/or inside a hole.
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Emmanuel Puybaret, Sweet Home 3D creator

Posted by Puybaret at Oct 26, 2012, 9:50:36 PM

Re: Bug in textures?
The hole made by an object added at a lower level is a rectangle that will include the shape of the object, except for staircases with a cut out shape.
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Emmanuel Puybaret, Sweet Home 3D creator

Posted by Gaytan at Oct 27, 2012, 12:05:44 PM

Re: Bug in textures?
Emmanuel,

Yes, my cylinder (corner pole of my house) starts at -1, is about 15 meters high and carries all different floors of the house; I've got 4 'poles' like that, one at each corner of the house!
Should be possible, orâ€¦.?

If I drag the 'room surface' over the pole, it shows 'round'; if I don't it shows squared + like you say, a bit in a 'hole'â€¦.

Rgrds,

Ed

Posted by Puybaret at Oct 28, 2012, 12:45:57 AM

Re: Bug in textures?
Add a surface at that place to hide the hole, or put the pole at ground level. Who will really care if the pole is the ground in the reality, but starts at ground level in Sweet Home 3D!
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Emmanuel Puybaret, Sweet Home 3D creator

Posted by Gaytan at Oct 29, 2012, 9:08:14 AM

Re: Bug in textures?
Ok, you're talking about a 'workaround' thenâ€¦..

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