GLSL Noise and Extrusion - Kinect

gtoledo3's picture

I made a blog post about setting up a GLSL shader to do an extrusion function and noise function, inspired by the gl point/noise look of the cool plugin from _1024 / franz, posted yesterday, setup for using the kinect tools output.

Hopefully, the shader based approach is of use, and is a good jump off point for customization. Many thanks to franz for the inspiration on look; I'm saying happy holidays with another "snow storm"! :)

Perspective transform onto curved surfaces within quartz composer

Caelshadowhunter's picture


I'm looking for a mechanism to perspective transform video for projection onto a curved surface. A package like 1024_perspective would be perfect if it weren't for the fact that I all of the patches that I've found only have corner pin transformation options. I really need sort of... mid point pins as well (which I obviously realise entails far mor advanced transformations).

A system which maps video onto a mesh such as PB mesh might be a partial solution but I really need to be able to tweak the parameters of the warp without having to create a new mesh.

I know it might be possible to write something using the GLSL shader in Quartz Composer but I would have to teach myself OpenGl code as its not something I've met before. It's something of a long term project but so its not something I would shy away from however I would rather not have to.

Does everyone have any ideas as to how to go about this?


Using GLUT in QC custom plugin

LukeNeo's picture

Hi, is it possible to use GLUT library inside a custom QC plugin? I tried to do that in this way:
* add GLUT framework to my project
* add

#import <OpenGL/OpenGL.h>
#import <OpenGL/gl.h>
#import <OpenGL/glu.h>

in my plugin.h

now, if in the execute method I try to make a simple sphere with this simple code..

- (BOOL) execute:(id<QCPlugInContext>)context atTime:(NSTimeInterval)time withArguments:(NSDictionary*)arguments
GLUquadricObj *quadratic;
gluQuadricNormals(quadratic, GLU_SMOOTH);
gluQuadricTexture(quadratic, GL_TRUE);

..nothing happens. Where I am wrong?

Thank you, Luke


cybero's picture

Just thought I'd share this item found via, not specifically QC related, but very inspiring, a Java based OpenGL application that draws and exports supershapes, very quick rendering of such shapes, possibly could act as a visual guide to what formula[s] to use.

3D SuperShapes