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Index › Programming Questions & Help › Other Libraries › GLTextures question.

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GLTextures question. (Read 956 times)

toshi

GLTextures question.
Dec 9^th, 2009, 3:27am

Hello. I have made a sketch runs with opencv, glgraphics, gltextures.
I want to call image in the dataface in random order every frame.
To avoid memory leak, I used GLTextures instead of loadImage on draw(); How can I make this sketch feed random images every frame?

thanks

--------

int mapping1 = round(random(0,imgs1.length-1));

void setup(){

rimg1 = loadImage(imgs1[mapping1]);

tex1 = new GLTexture(this, 85,85);

tex1.loadTexture(imgs1[mapping1]);

rimg1 = new PImage(tex1.width, tex1.height);

tex1.getImage(rimg1);

}

void draw(){

image(rimg1,0,0,100,100);

}

koogy

Re: GLTextures question.
Reply #1 - Dec 9^th, 2009, 3:56am

that code doesn't appear to be using tex1 and i think the GLTexture thing isn't going to help anyway.

if you have 100 images and you want to display them at random per frame then there's no avoiding loading them all into memory at once (in setup) - loading them as needed (in draw) will be too slow. if your images are only 100x100 as per your example then it won't take too much memory for each one.

(you could have a buffer containing, say, 10 images and load any others you need from disk into an image slot that isn't being used. do it in a separate thread so as not to cause too much delay in the draw())

toshi YaBB Newbies Offline Posts: 4	Re: GLTextures question. Reply #2 - Dec 11^th, 2009, 3:21pm Hello Well I wanted to load nearly 500images in setup, these images will be replaced to new images later. so the images in the memory can't be updated. that's the problem..

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