Author Topic: Only render objects/parts of the image with changed material (VFB the same)  (Read 2023 times)

2018-05-18, 12:20:43

OccultMonk

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I frequently edit certain materials and only want to view their effects so it would be very useful if only those parts o the render with these materials get rerendered and the frame buffer for the rest stays the same. This could, for instance, be an addition to Render selected drop-down.

Maybe you could add an option to only render objects or places where the material was updated. So when I change a material in 3dsmax slate material editor, only the objects (or better yet parts of objects) with that changed material get re-rendered (the rest of the framebuffer can stay the same). This should of course also work for multi-subobject materials.

2018-05-18, 19:53:19
Reply #1

Njen

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I doubt this is possible for two main reasons:
1. Max doesn't keep track of material updates in between renders.
2. As a path tracing renderer, one surface updating actually affects everything around it, as rays are bouncing all over the place.

2018-05-19, 19:31:52
Reply #2

OccultMonk

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For the second point, that is not really a problem. I just would like it to select objects/subobjects with changed materials automatically. Reflections being incorrect is not so important when iterating using interactive rendering.