[Gvsig_english] alpha channel issue

[María Ten]

> Hi Jan,
>
> The 3DS importer included in gvSIG (and provided for OSG) doesn't support
> using different images for alpha channel, but you can use a png with alpha
> channel for Diffuse color and Opacity. However, the plugin is bugged and it
> don't apply the alpha.
>
> But you can do this trick to force a "GL_BLEND" and show the alpha
> correctly. Edit your scene and apply the same png in diffuse color and
> opacity. Then change the Opacity to 99 in the "Phong Basic Parameters" as
> shown in the image "materials.png" attached.
>
> Now, try to load your 3ds file in gvSIG and you have to see something like
> attached screenshots.
>
> Since the plugin is provided by OSG, we try to solve the issue as soon as
> possible but maybe is not in our hand to have it ready for next version of
> gvSIG 3D extension.
>
> PD: We tested some collada and autocad importers/exporters for 3ds Max and
> the alpha channel issue persist in the exported files. Its a common issue in
> most of exporters, so trying to export in other format doesn't solve the
> issue. By the way, we tried the FBX plugin provided by OSG with great
> results, and we are thinking to include it in next distributions of our
> extension.
>
> Cheers.
>
> --
> María Ten Rodríguez
>
> gvSIG 3D Blog:
>
> http://gvsig3d.blogspot.com
>
> Instituto de Automática e Informática Industrial  http://www.ai2.upv.es
> Ciudad Politécnica de la Innovación
> Universidad Politécnica de Valencia
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://listserv.gva.es/pipermail/gvsig_internacional/attachments/20100706/a2f0dc14/attachment.htm 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Model.jpg
Type: image/jpeg
Size: 95658 bytes
Desc: not available
Url : http://listserv.gva.es/pipermail/gvsig_internacional/attachments/20100706/a2f0dc14/attachment.jpg 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: gvsig_model.jpg
Type: image/jpeg
Size: 87889 bytes
Desc: not available
Url : http://listserv.gva.es/pipermail/gvsig_internacional/attachments/20100706/a2f0dc14/attachment-0001.jpg 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: materials.png
Type: image/png
Size: 25393 bytes
Desc: not available
Url : http://listserv.gva.es/pipermail/gvsig_internacional/attachments/20100706/a2f0dc14/attachment.png