This page provides information on V-Ray IPR within 3ds Max.
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V-Ray Interactive Production Rendering (IPR) provides interactive rendering using the V-Ray Adv renderer.
While both IPR and V-Ray RT render interactively, they differ in a few key areas.
Settings for the behavior of the VFB when using IPR rendering can be found on the IPR options rollout under the Settings tab in the Render Setup window.
Using V-Ray IPR
The IPR option is currently accessible only from the V-Ray Frame Buffer (VFB).
To use V-Ray IPR:
- In the Render Setup window, make sure the Production render engine is set to V-Ray Adv. To open the VFB, click the Last VFB button on the V-Ray Toolbar, or click Show Last VFB under the V-Ray tab > Frame buffer rollout.
- To start IPR, click the Start interactive rendering button on the VFB toolbar. You can now make changes to the scene while the rendering continues, and the changes will be rendered automatically.
- When the scene is rendering, the Start interactive rendering button changes to the Refresh interactive rendering button. Click this button to restart the rendering at any time. The progress bar at the bottom of V-Ray Frame Buffer tracks the rendering progress of the current scene.
- Use the Stop rendering button to stop V-Ray IPR. After stopping, you can click Start interactive rendering again to restart IPR.
While IPR is running, if the Fit resolution to VFB option is enabled in the IPR options rollout, the render will refresh to fill the VFB if the VFB window is resized. The render output size will also change accordingly.
In addition, the IPR rendering will refresh whenever the Region Render area is redrawn.