Horde3D
http://horde3d.org/forums/

Missing Geometry
http://horde3d.org/forums/viewtopic.php?f=2&t=450		 Page 1 of 1
Author:  PuG [ 31.07.2008, 11:43 ]
Post subject:  Missing Geometry
Hi, I was just testing some terrain methods ive been using from Modo, and keep finding bits of geometry go missing during the export/import process into Horde. Now it could be very well a Modo plugin fault, but this is the result in Horde Editor:

Image
Image

It seems to occur when the polygon count gets to say 3000, but isn't uniform but rather moves around the model. The above model mesh should be a square.

Anyideas? if it is a Modo issue then I can look into what's going on. Ive uploaded the dae and texture files here: http://www.dark-forge.com/horde3d/files.7z

Best Regards,
Author:  Volker [ 31.07.2008, 12:32 ]
Post subject:  Re: Missing Geometry
Not sure about it, but maybe there are some normals flipped that result in a culling of these faces. Haven't used Modo yet, so I don't know if there's something like "Recalculate Normals" as it exists in Blender.
Author:  PuG [ 31.07.2008, 13:19 ]
Post subject:  Re: Missing Geometry
Doesn't appear to be - I don't think its an issue directly todo with Modo, but perhaps more so with the Collada exporter?
Author:  Volker [ 31.07.2008, 15:34 ]
Post subject:  Re: Missing Geometry
That may be the case, since if I remember correctly, the collada converter recalculates the normals again based on the vertex order. So if the vertex orders are clockwise instead of counter-clockwise the normal may be calculated wrong. But these comments are just speculations.
Author:  marciano [ 01.08.2008, 21:51 ]
Post subject:  Re: Missing Geometry
Volker wrote:
That may be the case, since if I remember correctly, the collada converter recalculates the normals again based on the vertex order. So if the vertex orders are clockwise instead of counter-clockwise the normal may be calculated wrong. But these comments are just speculations.

That's true. Especially mirrored geometry can cause problems.
Author:  PuG [ 02.08.2008, 06:53 ]
Post subject:  Re: Missing Geometry
This mesh is this case is not mirrored, and in Modo I have no tool to recalculate the normals as far as I know (never needed too in the last 4 years :)).

Collada to Geo does seem alittle temperamental, though I will see if I can find another exporter and check this end.

Best Regards,
Page 1 of 1 All times are UTC + 1 hour
Powered by phpBB® Forum Software © phpBB Group
https://www.phpbb.com/