Is there anyway to use osgUtil::Tessellator to only get back
GL_TRIANGLE primitives? With the available examples, the tessellator
adds/changes the primitive sets of the osg::Geometry passed to it into
multiple triangle fans, triangle strips, and triangles. I want my
geometry to just consist of GL_TRIANGLE draw calls.
Also, there's another method of using the tessellator where it looks
like you manually define contours / add vertices, etc, but I can't
figure out how to use it. Could anyone provide a small example, or
maybe point out what I'm doing wrong:
osgUtil::Tessellator myTess;
myTess.setTessellationNormal(offsetVec);
myTess.beginTessellation();
myTess.beginContour();
for(int i=0; i < areaVx->size(); i++) {
osg::Vec3 * someVertexPtr = &someVertex;
myTess.addVertex(someVertexPtr);
}
myTess.endContour();
myTess.endTessellation();
std::cout << "Num Contours " << myTess.getContours().size(); //
gives me a zero
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