Rendering without running?

Scripting Issues
1

Hi,

I was wondering if there is a way to update the render of a ShowBase without running it with app.run()? Something like app.render().

Essentially, I have a python script that is updating a panda3d scene. If I run app.run() the scene is rendered but then the rest of the script is paused until I stop that app, is there an alternative way to run the app for to render a single frame (update the window) and halt back to the script? I essentially want to update the window but keep executing other code (instead of starting the render loop).

Thanks

2

To update, I realized that self.taskMgr.step() can achieve this, but may require multiple calls to work. (first call didn’t render, but the second time worked).

3

If you don’t want to run the task manager at all, but just render (so no collisions, audio, events, intervals, etc. either), you can call base.graphicsEngine.renderFrame().

Double-buffering means that what’s been rendered in frame 1 will be flushed to the screen at the beginning of frame 2.