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This demo shows: editing parameters of lights, moving the camera, and changing integrator settings.
Video produced by Christos Obretenov of Lollipop Shaders.
Interactive rendering (or "IPR", also called "re-rendering" or "live rendering") uses the progressive refinement mode of path-traced rendering to continually update a render as aspects of a scene are changed. It is, fundamentally, the same as rendering, but all manner of interactive, real-time edits are possible during an IPR session. Rendering of the image is restarted after each edit (returning to a noisy image again), but the renderer keeps the scene loaded and ready to render.
During an interactive rendering session in RenderMan, you can:
- Move the camera and change its parametersview
- Model objects
- Import and export assets (Alembic, RIB archives, USD, etc.)
- Add and delete lights
- Change light parameters, re-position lights
- Change light linking
- Change material bindings and edit material and pattern parameters
- Change integrator and projection bindings integrators and parameters
- Edit geometry attributes
...
- , even displacement.
- ...most anything you can think of.