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core imageMetaballs Core Image (Composition by gtoledo3)
A classic "metaballs" setup in core image, with some simple lighting. Pacman Core Image (Composition by gtoledo3)
This is a pacman animation, working in core image. Raytrace Core Image (Composition by gtoledo3)
Nothing super fancy, but a raytracer working in core image. I'd been thinking about doing this for awhile, from being interested in the way core image always has a dedicated image output without having to render to screen/texture to do something with the result. It's a little bit of a pain because of typically used functions and working styles not being supported, but it works if you stay within the boundaries. It seems a little slower than GLSL. Less substantial/2D oriented fragment shaders tend to perform better when transferred, seemingly. Core Image Conundrum I wonder why this Core Image kernel code isn't working for me. It was found on the fromaremotevillage blog. http://fromaremotevillage.blogspot.com/2007/03/cocoa-application-with-cu... /*
A Core Image kernel routine that computes a convolution effect.
The code looks up the source pixel in the sampler and then multiplies it by the value passed to the routine.
*/
kernel vec4 Convolution3by3(sampler image,
float r00, float r01, float r02,
float r10, float r11, float r12,
float r20, float r21, float r22)
{
vec2 loc;
vec4 result = vec4(0,0,0,0);
//0,0 in my mind is left and up.
loc = vec2(1.0,0.0);
vec4 p12 = unpremultiply(sample(image, (samplerCoord(image) + loc) ));
result.rgb += p12.rgb * r12;
loc = vec2(-1.0,-1.0);
vec4 p20 = unpremultiply(sample(image, (samplerCoord(image) + loc) ));
result.rgb += p20.rgb * r20;
loc = vec2(0.0,-1.0);
vec4 p21 = unpremultiply(sample(image, (samplerCoord(image) + loc) ));
result.rgb += p21.rgb * r21;
loc = vec2(1.0,-1.0);
vec4 p22 = unpremultiply(sample(image, (samplerCoord(image) + loc) ));
result.rgb += p22.rgb * r22;
result = premultiply( result );
return result;
}Currently produces nothing more than blank empty space when run in QC 4.5 on Lion. Haven't tried it in Snow or earlier as yet.
Away Walk I threw the James Gang's Walk Away in the sonic orange juicer, and made this qtz visual by feeding some footage of them playing on a webclip to QC.
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