tuned ray-triangle intersection, now there are three algorithms to choose from: Plucker, Barycentric and Barycentric with preprocessing (Wald) methods in Vector and Shape (and derivates) made const

new C++ demo: realtime_dragon.cc class Container moved to its own source file (from kdtree.*) new directory for models and Makefile which downloads and prepares them fixed python module path in some forgotten demos ShapeList moved to scene.h

fix a bug in KdNode::subdivide and remove some extra variables realtime.cc - use SW surface

new make infrastructure generalize floats to Floats, allow compiling as both double/float

naive color driven sub-sampling slightly optimized KdTree::nearest_intersection fixed bug in Box::intersect fixed stripes on spheres in spheres_ao.py (was caused by AO distance) new KdTree property: max_depth minor changes in realtime.py

new C++ demo: realtime.cc (real-time scene viewer using SDL) Quaternion, Camera::rotate and Camera::move replace all printf's with infomsg wrapper don't allocate memory in Raytracer::render, just blindly write to provided address don't creat Container object in Raytracer, let user do it

added Camera, currently w/o Python binding new #define option: OVERSAMPLING fixed all demos to work with new camera (they had inverted z axis)

new demo: dragon.py

fix last leak as reported by valgrind

add Raytracer::setThreads() resolved all memory leaks during rendering