Hi,
Does anyone know how to use Delete SOP? I’m trying to repeat something I did in Blender Geo Nodes where I utilize noise textures to remove geometry to get organic meshes.
Currently I have NOISE TOP –> TOP to CHOP –>
LIMIT SOP –> GROUP SOP –>
SPHERE SOP –> DELETE SOP (GROUP SOP SELECTED)
This however throws an error saying no group found, even though there is a group created. FYI this is the blender geo node graph in case anyone is really savy.
Hi @michaelpromeo,
when an input to the Sphere SOP is provided, the sphere’s radius is automatically determined as a function of the input’s bounding geometry. (compare Sphere SOP - TouchDesigner Documentation)
The geometry created with the Sphere SOP takes the bounds of the input into consideration but creates a whole new geometry that has no connection to the input or its groups.
It’s more possible to do this with POPs: Take a Sphere POP and append a Noise POP where on the Output page you turn on the toggle for the Noise parameter and set the Combine Operation parameter to “None”. This will create a new point attribute that holds the noise values for each point of the input geometry.
Now append a Delete POP and on the “Attribute” page, select the attribute created in the Noise POP.
You can now change the noise parameters to shape the noise to your liking and increase the sphere’s frequency or row/column resolution to create smoother shapes. You can also further append a Subdivide POP to smoothen the output shape.
Hope that helps
cheers
Markus
