Hi,

Just starting a new project with Processing for the first time.
Really love the simplicity and power of Processing !

We did a test with one 3D model containing 72 triangles, 36 vertices

Using this model 250 times in a spiral shape was really slow.
Updating video card drivers gave us a little boost but not satisfying.

CPU load is ok indicating hardware acceleration is working.

After a couple of hours we decided to give the same sample a shot in OpenFrameworks.
There was a huge difference in performance we could easily use 2500 instances.

So I was wondering did we miss something in Processing or is OpenGl in OF just better ?


Thx in advance !

Code we used

Code:

import javax.swing.JFrame;

import com.obj.WavefrontObject;

import processing.core.PApplet;
import processing.core.PImage;
import saito.objloader.OBJModel;

//import processing.opengl.PGraphicsOpenGL;

public class Test extends PApplet
{
	
	private static final long serialVersionUID = -4255268276881618974L;
	
	float X;
	float Y;
	float YPOS;
	int lastTime;
	
	OBJModel mdl;

	WavefrontObject wfo;
	
	PImage tex;
	
	public void setup() {
		// TODO Auto-generated method stub

		mdl=new OBJModel(this,"data/A.obj");

		//size(screen.width,screen.height-100,P3D);
		size(1024,768,OPENGL);
		background(0);
		YPOS=0;
		mdl.enableMaterial();
		mdl.enableTexture();
		//smooth();
		noSmooth();
		lastTime=millis();
		noStroke();
		
		tex = loadImage("tex.jpg");
		hint(DISABLE_OPENGL_2X_SMOOTH);
		//hint(DISABLE_ACCURATE_TEXTURES);
		hint(DISABLE_DEPTH_SORT);
		//hint(DISABLE_DEPTH_TEST);
		
		//frustum(-1024, 1024, 0, 768, 0, 500);
		
		
	}
	@Override
	public void draw() {
		
		int now = millis();
		
		int diff = now-lastTime;
		float dt = (float)(diff)/1000;
		
		lastTime = now;
		
		background(0);
		lights();
		
		// TODO Auto-generated method stub
		
		resetMatrix();
		translate(0,100,-700);
		
		rotateY(Y);
		int l = 250;
		
		YPOS+=((mouseY-(100))*0.25)*dt;		
		
		for(int i=0;i<l;i++)
		{
			//
			float a = (float)(i*0.125);
			float r = sin((float)(i*0.25))*100+100;
			
			
			float y  = (float)(i * 5) - YPOS;
			if(y<800 && y>-800)
			{
				pushMatrix();
				float Z = sin(a)*r;
				translate(cos(a)*r,y,Z);
				rotateY((float)(-a+PI*0.5));

				mdl.draw();
				popMatrix();
			}
		}

		Y+=((mouseX-300)*dt*0.004);
		if(Y>PI*2)
		{
			Y=0;
		}
		
	}
	public static void main(String[] args)
	{
		PApplet.main(new String[]{"--present","Test"});		
		
	}
	
}