Category Archives: Tips and tutorials

Tips and tricks for visualists

Getting started with WebGL

WebGL Experiment in three.jsHere’s the thing that takes up my spare time right now: WebGL. For me with my web developer background (PHP, javascript, .NET) and my growing interest in realtime 3D graphics it’s so obvious that I can’t believe I haven’t played around with it before. The good thing is that at this point [...]
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Finding the right beat

Waveclock - BPM detectionAt those (admittedly few) occassions when I VJ alongside DJ I have often wished for a tool that would detect the tempo of the music for me. The more I searched for a Mac based solution the more I realized there is some pretty complex music analysis behind beat detection and [...]
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Using cues, timelines and VJ software for performances

These days as a part of the Obscura crew I am ofting doing visual shows that have more in common with theatre productions than traditional VJing. Often there is some sort of script for a show or a piece of music that is rehearsed. For these types of jobs I have found good use for [...]
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Modul8 quick tip: Keep track of your files with links

All users of Modul8 encounter the problem of keeping track of files in their projects I suppose. Sometimes you want to reuse media in new projects without creating extra copies of them and thereby cluttering your hard drive. Still you want the media collected in the same folder as the project in order to not [...]
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Working with Quartz compositions in Modul8

In Modul8 you’re able to play Quartz compositions (.qtz files) just by dragging them into your media bank like any other movie. However there are a number of problems with this approach: No 1. Performance. I have done tests and often there is a severe drop in framerate for qtz files in Modul8 compared to the [...]
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Quartz Composer performance in Modul8

I’ve been doing some testing and it’s my impression that you get a much better performance in Modul8 if you convert your .qtz files to .mov before importing them to Modul8. This can be done by following the steps described in this article: Working with Quartz Compositions in Modul8 I don’t know the reason for this [...]
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Organizing your images and movies with Adobe Bridge

This is a short demonstration of how to use Adobe Bridge for quickly browsing through all your images and movies and adding selected items to Modul8 or another VJ application. Now I know that everybody has their own workflow and preferences when organizing their files but you might find this tip useful if you ever find [...]
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The 5$ video mixer – how to do a DV screen cast through Firewire

I have found a way to transfer a live video screen capture from one Mac to another Mac using DV over Firewire. This might be useful for VJs who want to mix video from two computers without using a capture card – the 5$ in the title of this post is for buying a Firewire cable. Have [...]
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Setting the right size and duration of Quartz compositions in Modul8

Please see the updated version of this article: Working with Quartz Compositions in Modul8
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Rendering Quartz Composer compositions

If you have made a Quartz composition you might sometimes want to render it out frame by frame to another format. Here is the way that I found to get the best quality: 1. You need a Quicktime Pro license, which is a paid upgrade to the free Quicktime Player. Get it – it’s useful [...]
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  • About me

    Vibeke Bertelsen is a visual artist based in Copenhagen who specializes in motion graphics and video projections for live music and other events. Per 2010 I am a part of the group called Obscura working full time doing large scale visuals and video installations. Contact me on