Ok. I can get the mesh to work using the mtl file, but I have gone back and
tried to get the basic geometric textures working and I am still having
problems. I created a simple geometry for a box using the code shown below. I
set it up to try and place the texture file once on each face. When I run this
I get something that looks exactly like what happens when I just use the box
shape. This is getting frustrating. Any help with what I am doing wrong would
be greatly appreciated.
Code:
osg::Geometry* CreateBoxGeometry()
{
osg::Geometry* box = new osg::Geometry;
// Vertices
osg::Vec3Array* vertices = new osg::Vec3Array;
vertices->push_back(osg::Vec3(-.5, -.5, -.5)); // 0
vertices->push_back(osg::Vec3( .5, -.5, -.5)); // 3
vertices->push_back(osg::Vec3( .5, -.5, .5)); // 5
vertices->push_back(osg::Vec3(-.5, -.5, .5)); // 1
vertices->push_back(osg::Vec3(-.5, -.5, .5)); // 1
vertices->push_back(osg::Vec3( .5, -.5, .5)); // 5
vertices->push_back(osg::Vec3( .5, .5, .5)); // 7
vertices->push_back(osg::Vec3(-.5, .5, .5)); // 4
vertices->push_back(osg::Vec3(-.5, -.5, -.5)); // 0
vertices->push_back(osg::Vec3(-.5, -.5, .5)); // 1
vertices->push_back(osg::Vec3(-.5, .5, .5)); // 4
vertices->push_back(osg::Vec3(-.5, .5, -.5)); // 2
vertices->push_back(osg::Vec3( .5, -.5, -.5)); // 3
vertices->push_back(osg::Vec3( .5, .5, -.5)); // 6
vertices->push_back(osg::Vec3( .5, .5, .5)); // 7
vertices->push_back(osg::Vec3( .5, -.5, .5)); // 5
vertices->push_back(osg::Vec3( .5, .5, -.5)); // 6
vertices->push_back(osg::Vec3(-.5, .5, -.5)); // 2
vertices->push_back(osg::Vec3(-.5, .5, .5)); // 4
vertices->push_back(osg::Vec3( .5, .5, .5)); // 7
vertices->push_back(osg::Vec3( .5, -.5, -.5)); // 3
vertices->push_back(osg::Vec3(-.5, -.5, -.5)); // 0
vertices->push_back(osg::Vec3(-.5, .5, -.5)); // 2
vertices->push_back(osg::Vec3( .5, .5, -.5)); // 6
box->setVertexArray(vertices);
// Normals
osg::Vec3Array* normals = new osg::Vec3Array;
normals->push_back(osg::Vec3( 0, -1, 0));
normals->push_back(osg::Vec3( 0, -1, 0));
normals->push_back(osg::Vec3( 0, -1, 0));
normals->push_back(osg::Vec3( 0, -1, 0));
normals->push_back(osg::Vec3( 0, 0, 1));
normals->push_back(osg::Vec3( 0, 0, 1));
normals->push_back(osg::Vec3( 0, 0, 1));
normals->push_back(osg::Vec3( 0, 0, 1));
normals->push_back(osg::Vec3(-1, 0, 0));
normals->push_back(osg::Vec3(-1, 0, 0));
normals->push_back(osg::Vec3(-1, 0, 0));
normals->push_back(osg::Vec3(-1, 0, 0));
normals->push_back(osg::Vec3( 1, 0, 0));
normals->push_back(osg::Vec3( 1, 0, 0));
normals->push_back(osg::Vec3( 1, 0, 0));
normals->push_back(osg::Vec3( 1, 0, 0));
normals->push_back(osg::Vec3( 0, 1, 0));
normals->push_back(osg::Vec3( 0, 1, 0));
normals->push_back(osg::Vec3( 0, 1, 0));
normals->push_back(osg::Vec3( 0, 1, 0));
normals->push_back(osg::Vec3( 0, 0, -1));
normals->push_back(osg::Vec3( 0, 0, -1));
normals->push_back(osg::Vec3( 0, 0, -1));
normals->push_back(osg::Vec3( 0, 0, -1));
box->setNormalArray(normals);
box->setNormalBinding(osg::Geometry::BIND_PER_VERTEX);
// Faces
box->addPrimitiveSet(new osg::DrawArrays(GL_QUADS, 0, vertices->size()));
// Colors
osg::Vec4Array* colors = new osg::Vec4Array;
colors->push_back(osg::Vec4(1,1,1,1));
box->setColorArray(colors);
box->setColorBinding(osg::Geometry::BIND_OVERALL);
// Text Coords
osg::Vec2Array* tx = new osg::Vec2Array;
tx->push_back(osg::Vec2( 0.f, 0.f)); // 0
tx->push_back(osg::Vec2( 1.f, 0.f)); // 3
tx->push_back(osg::Vec2( 1.f, 1.f)); // 5
tx->push_back(osg::Vec2( 0.f, 1.f)); // 1
tx->push_back(osg::Vec2( 0.f, 0.f)); // 1
tx->push_back(osg::Vec2( 1.f, 0.f)); // 5
tx->push_back(osg::Vec2( 1.f, 1.f)); // 7
tx->push_back(osg::Vec2( 0.f, 1.f)); // 4
tx->push_back(osg::Vec2( 0.f, 0.f)); // 0
tx->push_back(osg::Vec2( 1.f, 0.f)); // 1
tx->push_back(osg::Vec2( 1.f, 1.f)); // 4
tx->push_back(osg::Vec2( 0.f, 1.f)); // 2
tx->push_back(osg::Vec2( 0.f, 0.f)); // 3
tx->push_back(osg::Vec2( 1.f, 0.f)); // 6
tx->push_back(osg::Vec2( 1.f, 1.f)); // 7
tx->push_back(osg::Vec2( 0.f, 1.f)); // 5
tx->push_back(osg::Vec2( 0.f, 0.f)); // 6
tx->push_back(osg::Vec2( 1.f, 0.f)); // 2
tx->push_back(osg::Vec2( 1.f, 1.f)); // 4
tx->push_back(osg::Vec2( 0.f, 1.f)); // 7
tx->push_back(osg::Vec2( 0.f, 0.f)); // 3
tx->push_back(osg::Vec2( 1.f, 0.f)); // 0
tx->push_back(osg::Vec2( 1.f, 1.f)); // 2
tx->push_back(osg::Vec2( 0.f, 1.f)); // 6
box->setTexCoordArray( 0, tx );
return box;
}
osg::Node* createModel()
{
osg::Group* root = new osg::Group;
osg::ref_ptr<osg::Geode> geode = new osg::Geode;
osg::Geometry *lpGeom = CreateBoxGeometry();
geode->addDrawable( lpGeom );
root->addChild(geode.get());
osg::ref_ptr<osg::Image> image = osgDB::readImageFile("gravel.bmp");
osg::StateSet* state = lpGeom->getOrCreateStateSet();
state->setTextureAttributeAndModes(0, new osg::Texture2D(image.get()));
return root;
}
Thanks,
David
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=24637#24637
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