Start Modeling in Classic OBJ Context

• Activate Modeler mode using the Modeler shelf tool. A yellow frame around the scene viewer indicates that Houdini is currently running in Modeler mode.
• Hold the Tab key to open Launcher. By hovering over a specific tool at the bottom of the menu, you can read a tooltip explaining how to use the tool and its associated shortcut.
• Choose one of the quad primitive tools.
• Now, you can select components with the Points (2), Edges (3), or Faces (4) tools.
• After selecting, use modeling tools, such as Move (T), Extrude (F), Delete (X), etc.
• To finish editing in Modeler mode and return to Houdini, select the Quit tool (Ctrl+Q) in Launcher or run the Modeler shelf tool again.

Start Modeling in Solaris

• Activate Modeler.
• In Launcher, select the Solaris tool. It is designed to switch between the classic object context and Solaris.
• Next, if you don't want to create nodes manually, activate the QuickLayout tool. This is a simple script for creating a set of nodes: geometry, light, and render settings. Delete unnecessary nodes if required. The main node here is objnet, where the modeling takes place. Since Solaris in Houdini 19.5 has some performance issues, this method of storing geometry in objnet was chosen.
• To avoid going into the node manually in the node editor, you can use the ObjNet tool. It simply switches between objnet and the Solaris context (/stage). That is, you model in objnet, and then by launching the ObjNet tool, you return to /stage to check how the render looks.
• The Karma tool switches the renderer type from OpenGL to Karma and back.