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Re: [EXT] Use Chickadee to render animation to file?

From: Thompson, David
Subject: Re: [EXT] Use Chickadee to render animation to file?
Date: Fri, 27 May 2022 16:10:07 -0400

Hi Jack,

This is an interesting use case! It's certainly possible, but would require
some work. It would probably look something like this: Render the scene to
a framebuffer texture, copy the pixel data from the GPU, and pipe it to a
video encoder. Chickadee's texture API doesn't yet provide any procedures
that allow you to access the raw pixel data, so that would need to be added
first. It would be a little clunky because you'd have to wait for the
animation to finish in real time since it's not a real animation tool but
it would work. Feel free to give it a shot and let us know how it goes!

- Dave

On Fri, May 27, 2022 at 12:39 PM Jack Hill <> wrote:

> Hi Guilers!
> I've been experimenting with David Thompson's Chickadeeā°. I'm really
> enjoying using agendas and scripts to create animations. My problem is (at
> least right now) I don't want to create an interactive game-like thing.
> Instead, I'm creating a deterministic animation. I'd like to start out
> with some Guile code and end up with a video file.
> What I hope to do is to program the animation using all the nice features
> of Chickadee, but instead of displaying it on a screen, output the frames
> that would be drawn to files. Does this seem possible? How would I go
> about it?
> 0:
> Best,
> Jack

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