Hello Houdini community,

I'm relatively new to Houdini, and this is my first question on the forum, so please bear with me.

I'm trying to extend the behavior of the drawCurve node, so I created an HDA that is a copy of the original node. My goal is to modify the projection geometry used by the stroke node inside the HDA. I successfully changed the guide geometry, and it works perfectly. However, simply changing the guide geometry isn't sufficient because it doesn't affect the actual geometry that the stroke node uses for projection.

What’s puzzling me is that there seems to be no direct connection between the input of the drawCurve node and the input of the stroke1 node. How is stroke1 determining which geometry to use for the projection? If I can figure out how the projection geometry is being passed to stroke1, I could modify it in the same way I modified the guide geometry.

Could someone guide me on how to approach this?