Hi, it's the first time I'm using Houdini Apprentice, specifically the L-System functions to model the growth and morphology of plants, and I wanted to know if you can import the rules in ASCII format. And after modelling and finishing the plant in 3D export it in ASCII format.

Thank you.

roedbo
And after modelling and finishing the plant in 3D export it in ASCII format.

You can export geometry files as ASCII text, but what format do you need? There are several formats that use ASCII, Houdini native (.json/.geo, .hclassic), wavefront (.obj), .ply, USD (.usda), FBX ascii, and probably some others I don't remember.

If I understand you correctly, you want to

1. read a text file and extract a portion of it into the rules parameter field.

2. append the rules parameter's string to a text file.

This can be done with python expressions. If you are familiar with python, this is quite easy. If not (and since you're new to Houdini), this route could be quite challenging, I suppose.

For the export part, you might want to take a look at the "Labs CSV Exporter", it is available in the OUT context (render nodes): https://www.sidefx.com/docs/houdini/nodes/out/labs--csv_exporter.html [www.sidefx.com]