Camera projection with geo-nodes

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1

Hi!

I’m trying to create camera projection with geo-nodes to store image color on point cloud color attribute, but I’m not into trigonometry at all.

What I’d like to achieve is this:
blender_rpqDpR0YA5

But with geo-nodes - not on a shading level.

Please, help!)
gn_camera_projection.blend (1.2 MB)

2

This is the only one I have found…

3

4.2 with matrix sockets and the project point node

4

Nahh. I’ve found no tutorials at all unfortunatly.

5

Well, yeah… That’s already something… Maybe some thoughts on scale?

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6

Thanks to @Hadriscus advise - seems I made it by combining solution above and shading nodes setup. And I’m happy about it!

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Inside geo-nodes there are 3 drivers - to get camera angle and shift x/y for proper mapping. So to use in defferent scene - be sure to remap those drivers to scene camera.

gn_camera_projection.blend (1.3 MB)

1 Like
7

Matrices aren’t necessary…

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image1320×845 186 KB

…invert rotation does what you need.

4 Likes