Processing 1.0 - Processing Discourse - P5Sunflow noise render problem.

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Index › Programming Questions & Help › Other Libraries › P5Sunflow noise render problem.

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P5Sunflow noise render problem. (Read 1217 times)

aleix

P5Sunflow noise render problem.
Apr 3^rd, 2008, 6:17pm

May be someone knows what's the problem. Thanks in advance

That's the P5Sunflow's camera example replacing the boxes by spheres. Looks good.
http://www.onionlab.com/colab/p5Sunflow/im1.jpg

That's the same example changing a little bit the sphere's z position. Begin to appear black strange noise.
http://www.onionlab.com/colab/p5Sunflow/im2.jpg

That's the same example decreasing the z position again. The noise it's really hard.
http://www.onionlab.com/colab/p5Sunflow/im3.jpg

I tryed to increase the samples (setAaSamples(int i)), disable GI,... and change some more parameters but the noise is still there.

Thant's the last image source code.

import hipstersinc.sunflow.*;
import hipstersinc.sunflow.shader.*;
import hipstersinc.*;

// Set up the scene, make sure we don't loop
void setup() {
size(1280, 720, "hipstersinc.P5Sunflow");
noStroke();
noLoop();
}

// Draw our scene
void draw() {
background(255);

setupCamera();
setupScene();

// Adjust perspective
translate(width/2, height/2, -800);
rotateX(QUARTER_PI);
rotateZ(QUARTER_PI);
translate(-width/2, -height/2);

// Draw some boxes
float boxSize = width / 11;
translate(boxSize, boxSize);
for(int i=0; i<3; i++) {
for(int j=0; j<5; j++) {
pushMatrix();
translate(j*boxSize, j*boxSize);
fill(j * 50);
sphere(boxSize);
popMatrix();
}
translate(boxSize * 2, 0);
}

}

void setupCamera() {
P5Sunflow sunflow = (P5Sunflow) g;
sunflow.camera.setType(SunflowCamera.THINLENS);
}

void setupScene() {
P5Sunflow sunflow = (P5Sunflow) g;
}

dfrazier

Re: P5Sunflow noise render problem.
Reply #1 - Apr 8^th, 2008, 4:31am

I can't give you an answer, but I'm having the same problem. Seems to be only when rendering spheres, and only in grayscale I think. So far I haven't found any rhyme or reason as to the cause but I'll post if I get anywhere.

Here's my sample photo of the noise.

http://farm3.static.flickr.com/2278/2397385626_6cd2120b7c.jpg?v=0

lenny YaBB Newbies Offline Posts: 36	Re: P5Sunflow noise render problem. Reply #2 - Jun 6^th, 2008, 12:08am hi guys. i got an answer to this. http://flickr.com/photos/lennyjpg/1732089275/in/set-72157602619301641/ check the comments there.
	www.flickr.com/photos/lennyjpg

beckel

Re: P5Sunflow noise render problem.
Reply #3 - Jun 25^th, 2008, 5:20pm

From what I gathered from Mark Chadwick's comments in the above Fickr link, you need to render small things up close rather than large things far away.... I guess? This method seems to work in my tests, replace the draw() loop above with this:

// Draw our scene
void draw() {
background(255);

//setupCamera();
//setupScene();
translate(400,250,700);

// Draw some boxes
float boxSize = 50;
//translate(boxSize, boxSize);
for(int i=0; i<3; i++) {
for(int j=0; j<5; j++) {
pushMatrix();
translate(j*boxSize, j*boxSize);
fill(j * 50);
sphere(boxSize);
popMatrix();
}
translate(boxSize * 2, 0);
}

}

samuel bravo

Re: P5Sunflow noise render problem.
Reply #4 - Jul 6^th, 2008, 9:25am

Hi guys, could anybody please tell what's wrong with my p5 sunflow installation?
I'm testing the example shown in the library's page, and i get this error:

java.lang.UnsupportedClassVersionError: hipstersinc/P5Sunflow (Unsupported major.minor version 49.0)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)

beckel YaBB Newbies Offline Posts: 16 LA	Re: P5Sunflow noise render problem. Reply #5 - Jul 6^th, 2008, 9:44am This is certainly the wrong place to post that question, but you probably have the wrong version of Java installed. Try downloading "Processing with Java" from the download page and re-install it.

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