Next time, please use the Help / Report a Bug dialog to report an issue.  It captures details about your setup that would help diagnose this. That said, ChimeraX --offscreen is what you need if you want to make images without the GUI and it only works on Linux at this time.  The only issue with offscreen rendering that I'm aware of in the 1.0 release is that it doesn't work for labels.  That has been fixed in the daily builds.      -- Greg On 8/1/2020 1:41 AM, Fabian Glaser wrote:

Dear gurus,

I am trying to produce a series of figures on the fly with chimeraX, using a python script of the following format (this is only a simple demo):

test.py:

#!/usr/bin/env python3

import sys from chimerax.core.commands import run

run(session, "open 1d66") run(session, "color red") run (session, "save fig1.png”)

==

This works like a charm with the gui, but without the gui it gives the following error, stops and no figure is produced, we tried both in Mac and linux. We are interest in the —nogui option:

.../MacOS/ChimeraX --script "test.py 1d66" —nogui

Executing: surface sel-residues enclose sel-residues Executing: transparency 0 ribbons Set transparency of 542 residues Executing: ~select Nothing selected Nothing selected Executing: save fig1.jpg Unable to save images because OpenGL rendering is not available

So is this solvable? How?

We tried also with the —offscreen, no luck either.

Best,

Fabian

Fabian Glaser PhD

Bioinformatics Knowledge Unit - BKU The Lorry I. Lokey Center for Life Sciences and Engineering Technion - Israel Institute of Technology, Haifa, Israel Web https://lokey.technion.ac.il/bioinformatic-knowledge-unit/ Tel +972 (0) 4 8293701

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