[fixed]Animated bounding boxes for instancied meshes bug

[Darktib]

Hello,

I have a scene with 3 entities. Each entity use the same animated mesh (extracted from ninja.b3d, irrlicht media folder). There is a big bug with the bounding boxes. Buffer bounding boxes are wrong, and so the object bounding box is wrong too.

I think this bug comes from the way animated meshes are handled : first they are animated correctly, and then the second pass render() the bounding boxes. But bboxes are updated in the wrong order.

I use only smgr->drawAll() for rendering, and setPosition/Rotation/Animation start, end and speed.

Here is a short (but heavy, 28 Mb compressed) video describing the bug: http://www.mediafire.com/download.php?qjz1zzej2mn

For me there is a workaround : I use the buffer bbox for unit selection, and I can recalculate every bbox before handling selection.

Code: Select all

irr::scene::IMesh* m = node->getMesh()->getMesh(node->getFrameNr());
	for(unsigned int i = 0; i < m->getMeshBufferCount(); i++)
		m->getMeshBuffer(i)->recalculateBoundingBox();

But this slow down fps...

[Darktib]

No idea(s) ?

[CuteAlien]

Well, it looks like it could be a bug and maybe even for the reason you said. Still it would be nicer to have a compiling code example than a video. Could you put your example online?

Also - don't be afraid of using the bugtracker :-)

[Darktib]

OK, I will put it on the bugtracker with a testapp

[Steel Style]

Here a patch on comment :
http://sourceforge.net/tracker/?func=de ... tid=540676

[Darktib]

Thank you, I will test it asap

[Steel Style]

I make it cleaner on the tracker :
http://sourceforge.net/tracker/?func=de ... tid=540678

Also I'm asking for the dev to be carefull at the comment cause this patch work but we can also make some change at the API (adding changing function) to have something better.