Fusion : Is there a more simple way to :

Hello to All fusion user in Davinci Resolve and other.
here some questions (not issues) with fusion :

1 - A 3D text has one ObjectID per Letter. After the render3D I wish to select all the ObjectID from a Text3D
How can I do that in a simple way ? It's always a "Range" of ObjectID ex : 13 to 29

2 - How to make 3D shadow extraction without building another 3D scene ?

3 - I've build a solar system with the moon, Earth and Sun. I didn't figure out how to have a fixed (in the 3Dscene) spotlight pointing at the moon (orbiting around the earth orbiting together around the sun). I've tried to use locators ..but it seems not to be made for that.

4 -In a color managed project When I chose a color (for Text Letters for example) from MacOS palette. The selected color is applied to the linear color space (of fusion). but not to the timeline color space of the project.

Thank in advance

I answer to myself thus creating my schizophrenic dual personalities

Hello to All fusion user in Davinci Resolve and other.
here some questions (not issues) with fusion :

1 - A 3D text has one ObjectID per Letter. After the render3D I wish to select all the ObjectID from a Text3D
How can I do that in a simple way ? It's always a "Range" of ObjectID ex : 13 to 29

Override 3D Node does exactly that

2 - How to make 3D shadow extraction without building another 3D scene ?

In the inspector of the "shape" receiving the shadow ➧ Disable "Receives Lighting" in Material's tab. Then Renderer is luminance Mask

3 - I've build a solar system with the moon, Earth and Sun. I didn't figure out how to have a fixed (in the 3Dscene) spotlight pointing at the moon (orbiting around the earth orbiting together around the sun). I've tried to use locators ..but it seems not to be made for that.

Add a camera after the Scene (Merge3D). In its Transformation tab, enable "Target", then use/add CoordTransform3D modifier

Hope this Helps (My both personalities agree )