Re: [osg-users] ETC1 Compressed textures

2013-06-18 Thread Nathan Monteleone

tomhog wrote:
 Hi All
 
 So I've written an app for iOS that uses pvrtc format for a couple of big 
 glyphmap textures 2048x2048. This works fine with the pvr plugin.
 
 I'm now porting to Android and have stubbled across the problem of not all 
 devices supporting pvrtc. However supposedly all of them support etc1 format.
 
 Looking at the pvr plugin it seems to also support etc1 format, but when I 
 try and load one I get the following error
 
 
 Failed to verify pvr header: 1, 0, 0, 0
 
 
 I used PVRTexToolGui v3.33 to convert the image using the ETC1 setting. Does 
 anyone know of a better tool to use.
 
 Cheers
 Tom


Hi,

I'm reviving this old post because I have run into the same problem.  I need to 
use ETC1 compression for Android but I'm struggling to find a tool that will 
create image files that OSG can consume.  AFAIK from searching the code, 
osgPlugin pvr is the only thing that will load an ETC1 compressed image.

So I have the same question as Tom: is there another tool I should be using 
that will make ETC1 compressed pvr's with the right header?

Thanks,
Nathan

--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=54671#54671





___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org


Re: [osg-users] ETC1 Compressed textures

2013-06-18 Thread Nathan Monteleone
Answering my own question here --

Looks like my best bet would be the relatively new ktx plugin -- seems like all 
the etc1 compression tools out there output to this format and it's 
khronos-blessed as well.

--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=54684#54684





___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org


[osg-users] ETC1 Compressed textures

2012-08-17 Thread Thomas Hogarth
Hi All

So I've written an app for iOS that uses pvrtc format for a couple of big 
glyphmap textures 2048x2048. This works fine with the pvr plugin.

I'm now porting to Android and have stubbled across the problem of not all 
devices supporting pvrtc. However supposedly all of them support etc1 format.

Looking at the pvr plugin it seems to also support etc1 format, but when I try 
and load one I get the following error


Failed to verify pvr header: 1, 0, 0, 0


I used PVRTexToolGui v3.33 to convert the image using the ETC1 setting. Does 
anyone know of a better tool to use.

Cheers
Tom

--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=49307#49307





___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org


Re: [osg-users] ETC1 Compressed textures

2012-08-17 Thread Thomas Hogarth
Bit more info, I also used the 'Fast Perceptual' encoding method, if that is of 
any relevance.

--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=49308#49308





___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org