is there any type of Grid Overly options in houdini to do something like rule of thirds for alignment in the camera view?

https://www.photovideoedu.com/Portals/0/Composition_and_Posing/MOC%20Zuckerman%20on%20Composition%20Rule%20of%20Thirds%201-1.jpg [photovideoedu.com]

Press the D-KEY with your mouse over the 3D view and you will bring up the Display options. Under the Guides tab there are a few overlay options such Video Safe Area and Field guide.

you might also take a look at this:
http://www.orbolt.com/asset/notawhale::notawhale_camcomposition [orbolt.com]

Hi,

Just select image with alpha of your rule of thirds in Viewer Foreground field in camera View.



Like this:
45% grid visibility: https://shura.studio/c/houdini/media/RuleOfThirds-45p.tif
100% grid visibility: https://shura.studio/c/houdini/media/RuleOfThirds-100p.tif




Regards,
Dmitry Shura

back to an oldy, but why isn't houdini taking the alpha mask? It's white instead of transparent

nickfr
back to an oldy, but why isn't houdini taking the alpha mask? It's white instead of transparent

Use a PNG and put it in the background image

OBJ Cameras have this functionality already implemented. You can use any SOP as a view mask overlay.
Go to the Camera "Parameter Interface" and add from the "Render Properties" the "View Mask" Folder.

Then you can define the SOP to use.
Set the aspect to ch("resx")/ch("resy") to automate it.
Create your SOP View Mask in the X/Y 0 to 1 Space.
You can even put that SOP Network inside the camera for a cleaner setup.

Very important to enable the "Camera View Mask" in the Display Options - Guides.

Waiting for the LOP Camera implementation in H20...

Ohhh, thanks heaps mate!

I set up some good guides in the Camera to match the guides C4D and Blender have.
So helpful.

But yeah, still waiting for this to work in Solaris / LOPs haha

I found an alternative method using only SOPs:

Grab a Volume node.

Name: density
Initial value: (1, 0, 0)
Go to "From Camera" and fetch your camera object.

Set both Z Near and Z Far to 1 (you can set them to any distance, but they need to be the same value to ensure the volume is flat).

Uniform Sampling: 100
Drop a Convert Volume node and lower the detail level to match the grid density you need (0.1 in my case).

Drop a Convert Line node.

Now, you have a grid that follows the camera movement and is adjustable.
It's not the best solution but can be useful in some situations (like for alembic cameras).