Hello, here is the new topic for procedural hairs with Geometry nodes.
Hairs - Geometry Nodes - General Forums / Blender and CG Discussions - Blender Artists Community
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What does the ID field connection do in some nodes like Random Value node?
can someone please explain or direct me to any resource about it? thanks
Im trying to resample some points I have with a line, but having problems getting a 1 to 1
snap,
anyone have an idea?
resample_geo.zip (742.6 KB)
Hello @HooglyBoogly ,
I noticed some issues with using the Sample Curve node. Iām not sure if itās a bug I should report or itās part of the design (like a design choice) or Iām doing something wrong?
Iāve attached a video to show the problem.
Here is a simple description:
When I use the Sample Curve node with the curve parameter like in your setup ( and attached video as well) for a curve object that has just one spline then everything works perfectly fine. I can āslideā the points on the curve along the spline as expected. However, when the curve object has two splines or more, the Sample Curve node doesnāt work as expected. The behaviour I expected was similar to how the Trim Curve node works where there are many splines in the curve, it trims each spline equally together. It doesnāt seem like the Sample Curve does that at the moment.
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I got your files but your nodes are quite strange I donāt think I understand it. what exactly are you trying to do?
Hereās a setup that works. I transferred the position attribute of the points to the line. Also I noticed your setup had an ID node instead of an Index node? maybe you should get the latest update of blender 3.0 alpha? (or maybe I should get it because mine is like 1 to 2 weeks old)
The blend file: resample_geo1.blend (782.7 KB)
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Yeah, I agree. I had tried to change that before 3.0 beta, but I didnāt get to it in time. I have a work in progress patch to change it here: D12988: Geometry Nodes: Split āWhole Curveā sampling into a separate node (WIP) (Iāll update the description to be proper later).
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Iām trying to make a chain. How do you make each other point rotate by 90 degrees?
edit:
I still donāt like how these field nodes donāt have an input socket on the left side
Use modulo 2 ==0 and index
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Iām trying to make chandeliers into Assets using collection instances that include light objects.
If I scale up the collection instance a little too much the lights wind up inside of the light bulb mesh and it ruins the lighting.
Would it be possible to use Geometry Nodes to instance a point light on a mesh line and use the scale of the base object to control the radius of the point lights?
The last 2 chandeliers I worked on had over 15 lights. It depressed me to think Iāll need to add and place so many lights when I want to use the asset in another scene at a size slightly larger than real world size.
I wish there was a way put just one or 2 custom properties on a linked collection/asset like ālights on/offā or āpreset color scheme 4ā
Ah, I see! 
Thanks for the update. Iāll keep an eye on this patch
That VTOL landing is amazing BluePrintRandom
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Trying to keep up with development here, is there a way to flip normals yet in geometry nodes 3.0? Or emulate a solidify modifier?
Hello guys, I would like to set a random material per āinstancesā.
But the thing is that for now, the randomness is applied on every faces :
Did you find any workaround ?
Thank you
Try using an index node instead of an id node in the random value socket.
The result is unchanged unfortunately