A  similar GLSL implementation of the Architectural fractales example ,  using spheres interesctions as a  raycasting algorythm .

     < Download  the QC  implementation : tL_substractive_sphere_b2.2

A  GLSL implementation of the Menger Sponge  fractal ,  using a raycasting technic ( orignal implemetation by Fractal Lab ) . 

     < Download  the QC  implementation : tL_LeCorbusier_factal_b3.3.qtz

A  GLSL implementation of the hydrogen electron orbitals quantic states. It evaluates the probablity density , for the first levels of n (with standarts conventions n , l , m=0 ) , using a raycasting technic  ( allows also mixing between two quantic states )  . 

     < Download  the QC  implementation : tL_hydrogen_electron_raycast_b2.6.qtz

Soft meshes  colliding using the C++ Bullet game physics simulation library ported to Quartz Composer  :

< Download  and unzip :  tLBulletSoftBody.zip . The folder contains :

     < The QCPlugin  file: tLBulletSoftBody.plugin .

     < A Quartz Composer  composition file : tLBullet_SoftBody_b1.4.qtz.

   < The XCode project folder : tLBulletSoftBody .