Hi,
I am new to OSG and I am attempting to port some work that was done in directX
over to OSG. I am using some of the basic geometric objects like osg::box and
osg::sphere. I got those working like I wanted, but when I tried to add texture
mapping to them the results are very different than what I got in DirectX. For
example, by default in directX when I mapped a texture to a box then each face
got a full copy of the texture. However, when I map the same texture to the box
in osg I get some weird stretched lines over the faces.
Do the standard geometric objects not have texture coordinates already defined,
or am I doing something simple wrong? I have listed a code snippet below. I
have also tried using all of the different texture modes, and none of them
really worked.
Do I have to set the texture coords up manually? Seems to defeat the purpose of
having simple objects predefined if I have to do a bunch of manual texture
corrdinate code for each one.
I have attached an image example showing the difference between the directx and
osg versions.
Code:
osg::ref_ptr<osg::MatrixTransform> gNode = new
osg::MatrixTransform(osg::Matrix::translate(osg::Vec3(0, 0,0)));
osg::ref_ptr<osg::ShapeDrawable> boxDrawable = new
osg::ShapeDrawable(new osg::Box(osg::Vec3(0,0,0), 10, 10, 10));
osg::ref_ptr<osg::Geode> box = new osg::Geode;
box->addDrawable(boxDrawable.get());
gNode->addChild(box.get());
root->addChild(gNode.get());
osg::ref_ptr<osg::Image> image = osgDB::readImageFile("gravel.bmp");
osg::StateSet* state = box->getOrCreateStateSet();
state->setTextureAttributeAndModes(0, new osg::Texture2D(image.get()));
Thank you!
Cheers,
David
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=24516#24516
Attachments:
http://forum.openscenegraph.org//files/textureexamples_200.jpg
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