Operators
The shared Photon operator set, as seen from the OVRTX engine.
OVRTX reuses the Photon helper COMPs — only the renderer TOP is its own operator. If both plugins are installed, the helpers serve whichever renderer collects them.
| Operator | Family | Shared with RTXPT |
|---|---|---|
Photon OVRTX | TOP | — (the engine) |
Photon Material | COMP | Yes |
Photon Light | COMP | Yes |
Photon Camera | COMP | Yes |
The frame budget
The defining OVRTX control is on the Render page:
render = op('/project1/photon_ovrtx1')
render.par.framebudget = 8.0 # ms — leave headroom for the rest of the networkThe engine spends its budget in priority order — primary visibility first, then shadows, then the radiance cache. Starve it and the image degrades gracefully instead of dropping frames.
Running at 60 fps with a 16.6 ms frame? Give OVRTX 8–10 ms and keep the
rest for compositing. The Perform page's cook-time readout tells you
what the whole chain actually costs.
A Photon Material bound in an RTXPT project needs no edits here — engine
differences are absorbed by the renderer, not pushed into your scene.