Hi there,
I'm a new user to Houdini but have a long history with vfx.
I'm trying to do something whereby I bring in an image sequence into an Image Network (called “LightTexture”) I composite this a bit then use it as the texture source of an EnvLight.
When I render this it looks great; my sphere is getting light from the image network I setup.
What I want to do next, and stay within the same Houdini session is bring that render into a new Image Network (called “Composite”)
I use a Render node which seems to allow me to grab/spawn the render out I have setup (and previously have seen and liked)
My problem is that when I hit “redo Render” on that Render node (or just view the node) it renders the sphere without the “LightTexture” and seems to just be a default colour (error colour??) i.e the Render node doesn't bring in the same render as the /out/mantra_ipr viewer shows.
I hope that makes sense. I feel like there's a dependency issues in there somewhere, like, it's rendering the scene into that “Composite” network without evaluating the other image network “LightTexture”
I have read up on the Render node and it supports only .pic so my /out/mantra_ipr has .pic set as it's output format and only otherwise changed the renderer to Physically Based Rendering mode and set the output picture field to “$HIP/images/Render.`$F4`.pic” in case it needed it.
Other notes are that I haven't done a render first, I was hoping to do it all from the “Composite” network and spawn renders on demand rather than rendering the scene, then re-importing the sequence . . . as a pure exercise.
I'm using Houdini FX Apprentice 13.0.509 (is there some limitation as part of Apprentice ??)
Thanks and I hope I was clear with the problem,
Cheers,
Matt Hermans
CG Supervisor
Alt VFX