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Author Topic: I/O for fragmentarium  (Read 960 times)
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Patryk Kizny
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« on: June 14, 2015, 01:17:27 PM »

Hey,

Just a quick question. Not sure if it's easily doable or implementable.
As always looking for integration with VFX pipeline and stuff... That's just me.

I would like to do the following:
- import an external file (ASCII, CSV or a waveform) and get access to the data from fragmentarium to either parametrize animation or animate camera
- export selected parameters of animation per frame - along with saving the sequence of JPGs I wish I could select parameters to be exported and it would save them as a set of files or a single file CSV data (columns would be fields and rows would be frames)

Is that doable?
I guess the latter needs adding options on a C-side, but maybe the first part is already there?

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Syntopia
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« Reply #1 on: June 14, 2015, 10:47:07 PM »

The easiest way would be to put your data in an image (.hdr is supported), and load the image as a texture. Then you could read the values in the GLSL script.

Otherwise you'd need to add C-code.
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Patryk Kizny
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« Reply #2 on: June 15, 2015, 10:46:49 AM »

Thanks!
Actually I found a simple way of working around the input - instead of rendering to bitmaps, I save out to CSV, text-convert to array data type and just include arrays in on the GLSL side.
Pretty usable for smaller amount of data and does what I need.
« Last Edit: June 17, 2015, 04:03:05 PM by Patryk Kizny » Logged

Visual Artist, Director & Cinematographer specialized in emerging imaging techniques.
Patryk Kizny
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« Reply #3 on: June 17, 2015, 01:18:52 PM »

How about exporting?
Is there any trick to dump parameters for each of frames to the debug text window or an external .frag file?
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3dickulus
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« Reply #4 on: November 11, 2015, 11:09:39 PM »

With QScript control you can save parameters or frag every frame tick if you want smiley
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Patryk Kizny
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« Reply #5 on: November 12, 2015, 06:55:27 PM »

Gotcha, thanks.
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3dickulus
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« Reply #6 on: November 13, 2015, 04:02:17 AM »

I added app.saveParameters(fileName) to the script commands, saves parameters like in the "Parameters" menu but without a file dialog, you will have to generate incremental filenames just like when saving images from a script animation. If the save fails it will open a warning dialog and will halt until "Ok" button is clicked, I know, not a great thing for a remote render but at least it won't just continue to render 5000 frames wrong.

app.loadParameters(fileName) is already available in v1.0.14, save will be in the next patch release v1.0.15  A Beer Cup
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You will be illuminated!

                            #B^] https://en.wikibooks.org/wiki/Fractals/fragmentarium
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