Nuke 6.3v4 supported Windows 7 64-bit (and legacy 32-bit versions) along with Mac OS X 10.5–10.6.
While Nuke 6.3 was a major "feature" release, the was a critical stability patch:
This version revolutionized workflows by allowing artists to work with "deep data"—essentially images where each pixel contains multiple depth samples. This made it possible to adjust 3D elements (like smoke or hair) without tedious re-renders of the entire scene. The foundry nuke 6.3v4 x32 x64 win
NukeX users gained access to a powerful particle engine that allowed for complex simulations—like explosions or rain—directly within the Nuke environment, fully integrated with the 3D workspace.
Released during a pivotal time for VFX, Nuke 6.3v4 was a stable workhorse for compositors transitioning into the world of high-complexity 3D workflows. While modern versions have added AI and GPU acceleration, the 6.3 era laid the foundational "3D-centric" approach that Nuke is known for today. Nuke 6
This era introduced the ability to import audio directly into the timeline, making it easier for artists to time their effects to specific sound cues or beats. Version 6.3v4 Release Notes
Significant upgrades to the Planar Tracker made rotoscoping and surface tracking much faster, while a new Denoise algorithm provided cleaner results for grainy film plates. NukeX users gained access to a powerful particle
A notable fix in this version addressed stability issues with the Convolve node .