A method implemented by one or more computers may include receiving data for graphical rendering and distributing a first portion of the data to a first computation process. The method may further include distributing a second portion of the data to a second computation process, where the second computation process is different than the first computation process, creating a first object subtree via the first computation process based on the first portion of the data, and creating a second object subtree via the second computation process based on the second portion of the data. The method may further also include assembling an object tree via a third computation process based on the first object subtree and the second object subtree and rendering a graphical scene based on the assembled object tree.