Geometry render node

Generates geometry files from a SOP or DOP network.

All Parameters Local variables

Parameters

Render

Begins the render with the last render control settings.

Render Control

Opens the render control dialog to allow adjustments of the render parameters before rendering.

Render with Take

Uses the settings in a particular take while rendering. Choose “Current” to use the current take when rendering.

Valid frame range

Limits the rendering of frames, when set to “Render frame range” or “Render frame range only”.

Render any frame

Allow the renderer to render any and all frames.

Render frame range

Only render the frames in the range set below, but allow the renderer to render other frames if they are referenced by in-range frames.

Render frame range only (strict)

Only render the frames in the range set below, and don’t allow the renderer to render other frames, even if they are referenced by in-range frames.

SOP Path

The SOP node, object, or SOP subnet to render from.

Output Name

The file to save the geometry to (should end in .geo or .bgeo). Make sure to include $F in the filename to write out separate files for each frame.

Transform

Specifies whether the geometry should be transformed into world space before written out.

Initialize Simulation OPs

Force all simulation OPs to be reset. This includes DOP Networks, POP SOPs, and other OPs that cache their results.

This is the safest way to render out a simulation, because it starts the simulation from scratch and discards any partial simulations you might have done with different parameters.

Alfred Style Progress

A percentage complete value is printed out as files are written. This is in the style expected by Pixar’s Alfred render queue.

Report Network Use

The number of bytes sent or received by the distributed simulation primitives during the cooks triggered by this geometry output is printed. Note this does not track network used by, for example, saving a file to an NFS mount. It only tracks the network used by such operators as the Gas Net Exchange Border DOP.

Save Retries

If saving the geometry to disk fails due to a disk writing error, Houdini normally will immediately error the output node. This is desirable for most cases where a failure to save means an illegal path so will is not recoverable. However, sometimes files fail to save due to network issues. If the number of save retries is non-zero, Houdini will re-attempt to save this number of times. Each time will be accompanied with an ouptut to the console of the failure to save and a five second wait in the hopes that the network will clear up.

Scripts

Pre-Render Script

Run this HScript before any rendering.

Pre-Frame Script

Run this HScript before each frame.

Post-Frame Script

Run this HScript after each frame.

Post-Render Script

Run this HScript after all rendering.

Local variables

N

Frame being rendered.

NRENDER

Total number of frames being rendered.

Usages in other examples

Example name Example for