Re: [osg-users] Change Texture in a given 3D model
Hi, Andrea If you know which texture unit used by this texture(if its only one texture applied to geode, this probably will be 0), you can load your own texture and set on your geode stateset on same texture unit with override flag node-getOrCreateStateSet()-setTextureAttribute(unit, moonTexture, osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE) texture can be created from image, image can be loaded with osgDB::readImageFile call Cheers 23.01.2012, 19:13, Andrea Martini martini.and...@gmail.com: Hi, is it possibile change texture image of a given 3D model? I have a 3D model coming from lightwave. I know the node* where i can find the texture (i.e Sun.tga). I'm wondering if is it possibile to change the SUN texture with another one (i.e MOON.tga) that has the same resolution. Moreover that texture would be applied in the same way of the previous one. PS: The only information i have is the name of the surface (geode) that contains the texture (created with uv map). Thank you! Cheers, Andrea -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=44974#44974 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Change Texture in a given 3D model
Hi,
thank you for your answer.
I solved using :
osg::Geode* mGeodeWhoHasTexture; // Geode with texture
osg::ref_ptrosg::Texture2D mGeodeTexture;
osg::ref_ptrosg::Image mOriginalImage; // original image
osg::ref_ptrosg::Image mImageOne; // new image
// After image load
...
mGeodeTexture=dynamic_castosg::Texture2D*
(mGeodeWhoHasTexture-getDrawable(0)-getStateSet()-getTextureAttribute(Channel,osg::StateAttribute::TEXTURE));
if (mGeodeTexture.get())
{
mOriginalImage = mGeodeTexture-getImage();
mGeodeTexture-setImage(mImageOne.get());
}
Is there a way to load all the images during start application to avoid
waiting time during image switching?
Beccouse each time i load a new image, i see a rescaling process. (i don't want
to rescale image) that could take some seconds.
Thank you!
Cheers,
Andrea
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Re: [osg-users] Change Texture in a given 3D model
You can disable image rescaling with texture-setResizeNonPowerOfTwoHint(false)
Cheers
24.01.2012, 15:13, Andrea Martini martini.and...@gmail.com:
Hi,
thank you for your answer.
I solved using :
osg::Geode* mGeodeWhoHasTexture; // Geode with texture
osg::ref_ptrosg::Texture2D mGeodeTexture;
osg::ref_ptrosg::Image mOriginalImage; // original image
osg::ref_ptrosg::Image mImageOne; // new image
// After image load
...
mGeodeTexture=dynamic_castosg::Texture2D*
(mGeodeWhoHasTexture-getDrawable(0)-getStateSet()-getTextureAttribute(Channel,osg::StateAttribute::TEXTURE));
if (mGeodeTexture.get())
{
mOriginalImage = mGeodeTexture-getImage();
mGeodeTexture-setImage(mImageOne.get());
}
Is there a way to load all the images during start application to avoid
waiting time during image switching?
Beccouse each time i load a new image, i see a rescaling process. (i don't
want to rescale image) that could take some seconds.
Thank you!
Cheers,
Andrea
--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=44985#44985
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[osg-users] Change Texture in a given 3D model
Hi, is it possibile change texture image of a given 3D model? I have a 3D model coming from lightwave. I know the node* where i can find the texture (i.e Sun.tga). I'm wondering if is it possibile to change the SUN texture with another one (i.e MOON.tga) that has the same resolution. Moreover that texture would be applied in the same way of the previous one. PS: The only information i have is the name of the surface (geode) that contains the texture (created with uv map). Thank you! Cheers, Andrea -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=44974#44974 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] change texture
and here is image when i run my program :
http://blog.360.yahoo.com/blog-Rs6nWTU5cqM642o5YzZ2Mf_I0w--?cq=1
- Original Message
From: Tran Thanh Hiep [EMAIL PROTECTED]
To: osg-users@lists.openscenegraph.org
Sent: Monday, October 29, 2007 5:17:35 PM
Subject: [osg-users] change texture
hi all,
in my program i want change a new texture for my model but when i apply a new
texture it don't display correct
follow here my code
virtual void apply(osg::Geode node)
{
int count=node.getNumDrawables();
for(int i=0;icount;i++)
{
osg::Drawable *pDrawable=node.getDrawable(i);
osg::Geometry *pGeo=dynamic_castosg::Geometry*(pDrawable);
osg::StateSet *pStateSet=pGeo-getStateSet();
if(pStateSet!=NULL)
{
//pStateSet-getAttributeList();
osg::Texture2D
*txtOldTexture=static_castosg::Texture2D*(pStateSet-getTextureAttribute(0,osg::StateAttribute::Type::TEXTURE));
//osg::StateAttribute
*pStateAttribute=pStateSet-getTextureAttribute(0,osg::StateAttribute::Type::TEXTURE);
//if(pStateAttribute!=NULL)
if(txtOldTexture!=NULL)
{
// txtOldTexture-flushDeletedTextureObjects(0,0,0.0);
// txtOldTexture-setUnRefImageDataAfterApply(false);
txtOldTexture-dirtyTextureObject();
txtOldTexture-flushAllDeletedTextureObjects(0);
// osg::Texture2D
*txtOld=dynamic_castosg::Texture2D*(pStateAttribute);
osg::Image *imgTexture=osgDB::readImageFile(strNameImageFile);
//txtOldTexture-areAllTextureObjectsLoaded();
txtOldTexture-setImage(0,imgTexture);
//txtOld-setImage(imgTexture);
bolIsState=true;
}
}
}
please help me
thanks!
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[osg-users] change texture
hi all,
in my program i want change a new texture for my model but when i apply a new
texture it don't display correct
follow here my code
virtual void apply(osg::Geode node)
{
int count=node.getNumDrawables();
for(int i=0;icount;i++)
{
osg::Drawable *pDrawable=node.getDrawable(i);
osg::Geometry *pGeo=dynamic_castosg::Geometry*(pDrawable);
osg::StateSet *pStateSet=pGeo-getStateSet();
if(pStateSet!=NULL)
{
//pStateSet-getAttributeList();
osg::Texture2D
*txtOldTexture=static_castosg::Texture2D*(pStateSet-getTextureAttribute(0,osg::StateAttribute::Type::TEXTURE));
//osg::StateAttribute
*pStateAttribute=pStateSet-getTextureAttribute(0,osg::StateAttribute::Type::TEXTURE);
//if(pStateAttribute!=NULL)
if(txtOldTexture!=NULL)
{
// txtOldTexture-flushDeletedTextureObjects(0,0,0.0);
// txtOldTexture-setUnRefImageDataAfterApply(false);
txtOldTexture-dirtyTextureObject();
txtOldTexture-flushAllDeletedTextureObjects(0);
// osg::Texture2D
*txtOld=dynamic_castosg::Texture2D*(pStateAttribute);
osg::Image
*imgTexture=osgDB::readImageFile(strNameImageFile);
//txtOldTexture-areAllTextureObjectsLoaded();
txtOldTexture-setImage(0,imgTexture);
//txtOld-setImage(imgTexture);
bolIsState=true;
}
}
}
please help me
thanks!
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