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beginTransform() throws error message (NyAR2)

[0 Replies]
- 10-Nov-2012 06:20 AM
- Forum: Contributed Library Questions
Hi fellas,
I'm having a trouble when running a sketch it trows at me the next error

"beginTransform() is only supported by P3D and OPENGL renderers"

Any clue of what might be going on?

Thanks

Augmented Reality marker problem

[1 Reply]
- 08-Nov-2012 09:09 AM
- Forum: Contributed Library Questions
Hello folks,
I'm currently working with AR using processing, ARToolkit and GSVideo, the problem is that when I run the program, it seems to be doing great, but my .obj (my 3D model) appears in the upper left corner of the program's window and is not linked with the markers, it just walks randomly and disappears into oblivion.

I am using the code found at this webpage: http://eu.wiley.com/WileyCDA/WileyTitle/productCd-1118036638,miniSiteCd-SYBEX,descCd-DOWNLOAD.html (chapter 6)

also I am using the nyartoolkit library by cpbotha that can be found here: http://cpbotha.net/files/nyar4psg_multimarker/

I have changed the code so it runs with the newest version of processing (marked in red)

Any comment will be much appreciated.

My code is:

import codeanticode.gsvideo.*;

import jp.nyatla.nyar4psg.*;

import processing.opengl.*;

import saito.objloader.*;

import codeanticode.gsvideo.*;

import java.io.*;

GSCapture cam;

NyARMultiBoard nya;

OBJModel annie ;

PFont font;

PVector move;

PVector xypos;

OBJModel[] anim;

int animFrames = 20;

int animFrame;

boolean animOn= true;

float turn = 0.0;

float prevangle = 0.0;

void setup() {

size(800,600,OPENGL);

cam=new GSCapture(this,width,height);

cam.start();

font=createFont("FFScala", 32);

String[] patts = {"samarker16.pat", "walkmarker16.pat", "turnmarker16.pat"};

double[] widths = {80,80,80};

nya=new NyARMultiBoard(this,width,height,"camera_para.dat",patts,widths);

print(nya.VERSION);

nya.gsThreshold=120;//(0<n<255) default=110

nya.cfThreshold=0.4;//(0.0<n<1.0) default=0.4



int i;

String filename = "";

anim = new OBJModel[animFrames];



for(i = 1; i <= animFrames; i++){

if(i < 10){

filename = "shootinannie-superlowpoly-tri_00000" + i + ".obj";

}else{

filename = "shootinannie-superlowpoly-tri_0000" + i + ".obj";

}

anim[i-1] = new OBJModel(this, filename, "relative", TRIANGLES);

anim[i-1].enableDebug();

anim[i-1].scale(15);

anim[i-1].translateToCenter();

anim[i-1].enableTexture();

anim[i-1].translateToCenter();

}



xypos = new PVector(0,0);

move = new PVector(0, -1);

}

void drawMarkerPos(int[][] pos2d)

{

textFont(font,10.0);

stroke(100,0,0);

fill(100,0,0);

for(int i=0;i<4;i++){

ellipse(pos2d[i][0], pos2d[i][1],5,5);

}



fill(0,0,0);

for(int i=0;i<4;i++){

text("("+pos2d[i][0]+","+pos2d[i][1]+")",pos2d[i][0],pos2d[i][1]);

}

}

void draw() {

if (cam.available() !=true) {

return;

}

background(255);

cam.read();

background(cam);

image(cam, 0, 0, width, height);

PImage cSmall = cam.get();

nya.detect(cSmall); // detect markers in the image





if (nya.detect(cam))

{

for (int i=0; i < nya.markers.length; i++)

{

if (nya.markers[i].detected)

{

drawMarkerPos(nya.markers[i].pos2d);

}

}

if(nya.markers[1].detected){

animOn = true;

}else{

animOn = false;

}



PGraphicsOpenGL pgl = (PGraphicsOpenGL) g;

perspective();

if (nya.markers[0].detected){

noStroke();

rotateX(radians(-90));

if(nya.markers[2].detected){

turn = nya.markers[2].angle.z;

rotate2D(move, turn-prevangle);

prevangle = turn;

}



translate(xypos.x, xypos.y, 50);

rotateY(turn);

if(animOn){

anim[animFrame].draw();

xypos.add(move);

animFrame++;

if(animFrame == animFrames){

animFrame = 0;

}

}else{

anim[17].draw();

}

}

}

}

void rotate2D(PVector v, float theta) {

float xTemp = v.x;

v.x = v.x*cos(theta) - v.y*sin(theta);

v.y = xTemp*sin(theta) + v.y*cos(theta);

}

Augmented reality processing problem

[5 Replies]
- 30-Sep-2012 12:33 PM
- Forum: General Discussion
Hello fellas,

I just started with augmented reality I'm working with the tutorial I found at: http://www.creativeapplications.net/processing/augmented-reality-with-processing-tutorial-processing/

Everything seems to work ok until the the sketch's window turns completely black, the weird thing is that I am still able to see the AR cubes and move them around but I can't see myself :(

Could this problen be related with my Web cam? or maybe my version of Windows? (Windows 7, 64-bit)

Thanks a lot for any clue or comment.

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