Object not rendering IF it's not in scene at frame 1 Tweet

[reelinspirations]

Hi,

I ran into this issue when I was attempting to have some an object rotate in, and then 'reveal' a second object.

The second object was hooked into a switch node with a null object being selected until I wanted it to be in the scene.

For some reason, Octane (or the Houdini plug-in) needs the object to be in the scene in frame 1 for it to render later on.

Here is a test project that demonstrates the issue. If you render this out, the box never shows up in the render, but is viewable in the viewport.

Mac OSX 10.10.5
Titan 6GB
nVidia web driver 346.02.03f10
Octane 3.05.3.0 - Houdini
Octane Render 3.05.3
Houdini Indie 15.5.717

[juanjgon]

Hi,

The problem is that you are rendering the scene in "Update scene" mode. In this mode, the scene extraction time for each frame is faster while rendering a sequence, but unfortunately, the objects that are not available in the first frame can't be updated.

To render this kind of scenes you need to change the Octane ROP rendering mode configuration to "Full scene reload". Also in the IPR, you could need to enable the "Full Reload" button to reload the scene for each frame.

Thanks,
-Juanjo

[reelinspirations]

Thanks,

I'm guessing because I'm on a Mac that I don't have all those options in the IPR window.

My IPR window has no buttons in it at all and I can't figure out how to make them appear, so I just figured that was how it worked on Mac OS.

[juanjgon]

Yes, true. I need to add this option, and some others, as a command to control the MPlay IPR using commands, hotkeys, or icons on the shelf. All this stuff are planned features to be added once I have finished the current H16 and Octane 3.06 builds.

Anyway, the final render from the ROP node should work fine.

Thanks,
-Juanjo