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Index › Programming Questions & Help › OpenGL and 3D Libraries › Glow/Blur/Bitmap flash-like filters ?
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Glow/Blur/Bitmap flash-like filters ?? (Read 1733 times)
Insan3Dev
Glow/Blur/Bitmap flash-like filters ??
Jan 14th, 2010, 11:39am  
Hi everyone,

I´m just getting started on processing but i´ve been using flash 6 years ago ,  something i would like to do in processing is to create flash-like filters like Glow/Blur over a ellipse for instance.

I´ve taked a  look to the texture function but that´s all.

If anyone could put me in the right direction to start looking more about this topic i´d really appreciate it.

Thanks. :)
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V
Re: Glow/Blur/Bitmap flash-like filters ??
Reply #1 - Jan 14th, 2010, 3:51pm  
filters in processing: http://processing.org/reference/filter_.html
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Victor Martins | www.pixelnerve.com/v
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Insan3Dev
Re: Glow/Blur/Bitmap flash-like filters ??
Reply #2 - Jan 14th, 2010, 5:54pm  
Hey V,

Just a couples minutes ago i found that reference, what i´m trying to do it`s put some texture on my particle.

for example having ...

Class Particle{

void render()
{
pushMatrix();
translate(vector.x,vector.y,vector.z);
ellipse(vector.x,vector.y,r,r);
popMatrix();
}
}


how could i use a image texture / (blur-glow)-like effect for the drawing of my particle?


Thanks
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V
Re: Glow/Blur/Bitmap flash-like filters ??
Reply #3 - Jan 15th, 2010, 1:38am  
first load a texture

PImage tex = loadImage( "yourimage.png" );


then use beginShape/endShape

textureMode( NORMALIZED );  // use normalized texcoords meaning [0..1]

fill( 255);
tint( 255 );
float s = 5; // side size of the quad
beginShape( QUADS );
texture( tex );
vertex( -s, -s, 0, 0 );
vertex(  s, -s, 1, 0 );
vertex(  s,  s, 1, 1 );
vertex( -s,  s, 0, 1 );
endShape();


ref:
http://processing.org/reference/beginShape_.html
http://processing.org/reference/texture_.html



for filters apply them to the textures as you please, and you will also need to apply translations. as you were doing already. this quad here if rendered with its pivot point as the center
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Victor Martins | www.pixelnerve.com/v
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Insan3Dev
Re: Glow/Blur/Bitmap flash-like filters ??
Reply #4 - Jan 15th, 2010, 10:25am  
Thank you  Smiley just what i need.
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