Real-time issue with Blender viewport

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martinmgl
Licensed Customer
Posts: 4
Joined: Wed Jul 31, 2019 11:24 am

Ok so, I have the "enable real-time in viewport rendering" option in Octane enabled in all my default scenes. And works great to get faster, smoother previews in Blender's viewport.
Now here's my issue: when I activate the octane AOVs and the Octane compositor output, the blender viewport goes gray. But I can still see the render previews in the Octane viewport. With real-time compositor working and all. If I then disable the real-time option (keeping the AOV and compositor), the Blender viewport goes back to working normally.

Any fixes coming? I love the real-time option, use it all the time as it really helps with viewport speed and smoothness.
Many thanks!!
skientia
Licensed Customer
Posts: 239
Joined: Tue Mar 12, 2024 1:50 am
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It is worth to mention about all these options and their use-cases (and could be the reason why, meaning, a limitation):

As per the available information about the feature, the Real-Time option does not turn the chosen Kernel (e.g. Path Tracing) into a Brigade-like kernel but essentially speed up a set of certain GPU processes, some or most of which relate to image buffer.

Some additional methods to to speed up the IPR (rendering image buffer):

• The Direct Kernel instead of PT, when suitable, is another approach to speeding rendering calculations.

• Render settings and project file data set "scene" optimization, further elaborated on this page.

Sub-sampling options that come as 2x2 and 4x4 pixel grid; one could think of it as a lower resolution for the first calculated samples which makes "moving around the 'scene' " a smoother experience.
Shown here in Octane Standalone:
octane-standalone-viewport-sub-sampling.jpeg
octane-standalone-viewport-sub-sampling.jpeg (22.2 KiB) Viewed 1583 times
Octane resources
OCTANE POSTS (URLs have changed, which will break some links but all content remains available).
martinmgl
Licensed Customer
Posts: 4
Joined: Wed Jul 31, 2019 11:24 am

Thanks Skientia. Yes I realize RTV is not the be and end all viewport solution and that there are other ways to increase the viewport efficiency. But RTV is fantastic and I would just like to see it work with the Octane Compositor as well. (I heard yesterday that RTV doesn't support Compositor yet)
linograndiotoy
OctaneRender Team
Posts: 1350
Joined: Thu Feb 01, 2018 7:10 pm

martinmgl wrote:Thanks Skientia. Yes I realize RTV is not the be and end all viewport solution and that there are other ways to increase the viewport efficiency. But RTV is fantastic and I would just like to see it work with the Octane Compositor as well. (I heard yesterday that RTV doesn't support Compositor yet)
The Real-Time option currently limits other features, such as using the compositor. This is why I always recommend keeping it turned off during "production" workflows.
martinmgl
Licensed Customer
Posts: 4
Joined: Wed Jul 31, 2019 11:24 am

linograndiotoy wrote:
martinmgl wrote:Thanks Skientia. Yes I realize RTV is not the be and end all viewport solution and that there are other ways to increase the viewport efficiency. But RTV is fantastic and I would just like to see it work with the Octane Compositor as well. (I heard yesterday that RTV doesn't support Compositor yet)
The Real-Time option currently limits other features, such as using the compositor. This is why I always recommend keeping it turned off during "production" workflows.
Thanks Lino. But what I don't get is why it does (seem to) work in the Octane viewport and not in the Blender viewport?
Many thanks!
Martin
linograndiotoy
OctaneRender Team
Posts: 1350
Joined: Thu Feb 01, 2018 7:10 pm

That's an interesting question. I'll look into that. Thanks!
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