tutorial

Line Spirograph (Composition by gtoledo3)

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This is a intermediate level composition that shows how to construct a Spirograph style shape by using GL Lines (GL Tools patch required), Iteration, Interpolation, and LFO's.

By using GL Lines, one has control over many interesting Stipple Patterns, and color control. This patch also has controls for Spirograph movement duration, max and minimum points for Spirograph extent, and controls to affect the way the movement of the Spirograph.

This patch will not work well in a Lighting environment due to the nature of GL Line.

Line Sphere (Composition by gtoledo3)

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This is a basic composition that shows how to construct a sphere shape by using GL Lines (GL Tools patch required), Iteration, Interpolation, and LFO's.

By using GL Lines, one has control over many interesting Stipple Patterns, and color control, that aren't available with a stock Sphere, while it has other limitations compared to the stock Sphere (no ability to texture the whole shape, only the lines which comprise the constructed Sphere).

This patch will not work well in a Lighting environment due to the nature of GL Line.

Line Cone (Composition by gtoledo3)

Download (12.57 KB)

This is a basic composition that shows how to construct a cone shape by using GL Lines (GL Tools patch required), Iteration, and LFO's.

By using GL Lines, one has control over many interesting Stipple Patterns, and color control, that aren't available when making a cone out of a stock Cylinder patch.

This patch will not work well in a Lighting environment due to the nature of GL Line.

Quartz Composer OpenCL Snow Leopard Tips: Heightfield with CL Kernel - VideoImage Extrusion Example Composition (Composition by

This video is a run down of some tips about some new examples files available at the Apple Developer Center website.

Then, I take a text extrusion example, and show how to reconfigure it to use the OpenCL kernel setup to process video in a way that is similar to the Rutt Etra, or Kineme3D Heightfield, but which seems to work especially well with shadows (notwithstanding any other shadow limitations).

I also talk about and show the Apple 2d fluid example, "2D Smoke", and the composition "Pages Jiggle" in action.

Force patch demo composition

Here's a little demo composition I put together that shows how to use the Force patch (new to Snow Leopard.) It's not very well documented, but you should be able to figure it out by looking at it. Plus, it's kind of fun to play with, if nothing else. Enjoy!