multi-threaded rendering via pthreads
added README
* pthreads for Windows: http://sources.redhat.com/pthreads-win32/ * kd-treecontainer.h -- Containerkdtree.h -- KdTreeshapes.h -- Triangle, Spherescene.h -- Ray, Light, Camera, Scenematerial.h -- Material, Texturematrix.h -- Matrixvector.h -- Vector3reader.h -- Reader, WavefrontReaderKdTree monkeywf = new WavefrontReader()wf.setContainer(monkey)wf.read("monkey.obj")destroy wfmonkey.optimize() -- i.e. build treeScene scene -- container with shapes, a camera and lightsscene = new Scene()scene.setTop(monkey) -- top object in hierarchyscene.setCamera(new Camera(pos, dir, angle))scene.addLight(new PointLight(pos, color))rt.setScene(scene)rt.render(w,h)constructors have zero or one parameter by default -- the object to copy data frommore parameters -- the data (ray origin and direction)