Hello all, for a project I need a textured rounded box, because I couldn't find it I thought I'd make it myself, its nearly there I am just missing the last small bit, but because my brain is hurting due to all the trigionometry terror I just can't figure it out. I hope someone here can point it out :)
The script requires a texture named "tex" once you run the sketch you'll see that the rounded corners are now round and therefore do not fit right, I think I'm missing some kind of sinus cosinus tangent thingy at the rounded corners vertex part.

Thank you!




void roundedCube(PImage tex, float xSize, float ySize, float zSize, float radR) {
  int tesVal = 2;
  float rad = radR;

  pushMatrix();
  boxFace(xSize, ySize, zSize, radR, tesVal);
  rotate(PI, 1, 0, 0);
  boxFace(xSize, ySize, zSize, radR, tesVal);
  rotate(PI/2, 1, 0, 0);
  boxFace(xSize, zSize, ySize, radR, tesVal);
  rotate(PI, 1, 0, 0);
  boxFace(xSize, zSize, ySize, radR, tesVal);
  rotate(PI/2, 0, 1, 0);
  boxFace(ySize, zSize, xSize, radR, tesVal);
  rotate(PI, 1, 0, 0);
  boxFace(ySize, zSize, xSize, radR, tesVal);
  popMatrix();
}

void boxFace(float a, float b, float c, float rad, int tes) {
  int tesVal = tes;
  float xVal= a-rad;
  float yVal = b-rad;
  float zVal = c-rad;
  beginShape(QUADS);
  texture(tex);
  vertex(-xVal, -yVal, c, (-xVal/(2*a))+0.5, (-yVal/(2*b))+0.5);
  vertex( xVal, -yVal, c, (xVal/(2*a))+0.5, (-yVal/(2*b))+0.5);
  vertex( xVal, yVal, c, (xVal/(2*a))+0.5, (yVal/(2*b))+0.5);
  vertex(-xVal, yVal, c, (-xVal/(2*a))+0.5, (yVal/(2*b))+0.5);
  endShape();

//half a round edge two times
  for (int i = 0;i<2;i++) {
    rotate(PI, 0, 0, 1);
    beginShape(QUAD_STRIP);
    texture(tex);
    for (int j=0;j<=tesVal;j++) {
      float angle =PI/4+ (PI/4)*(float(j)/tesVal);
      float xRot = rad*cos(angle);
      //float zRot = rad*sin(angle);
      vertex(xVal +xRot, yVal, zVal+rad*sin(angle), (xVal+xRot)/(2*a)+0.5, (yVal/b)+0.5);
      vertex(xVal +xRot, -yVal, zVal+rad*sin(angle), (xVal+xRot)/(2*a)+0.5, (-yVal/b)+0.5);
    }    
    endShape();
  }

//half a round edge two times again
  for (int i = 0;i<2;i++) {
    rotate(PI, 0, 0, 1);
    beginShape(QUAD_STRIP);
    texture(tex);
    for (int j=0;j<=tesVal;j++) {
      float angle =PI/4+ (PI/4)*(float(j)/tesVal);
      float yRot = rad*cos(angle);
      vertex(xVal, yVal+yRot, zVal+rad*sin(angle), (xVal/(2*a))+0.5, (yVal+yRot)/(2*b)+0.5 );
      vertex(-xVal, yVal+yRot, zVal+rad*sin(angle), (-xVal/(2*a))+0.5, (yVal+yRot)/(2*b)+0.5);
    }    
    endShape();
  }

//Round corners
  float xMul =1;
  float yMul = 1;
  for (int i = 0;i<4;i++) {

    if (i==1) {
      yMul=-1;
    }
    else if (i==2) {
      xMul = -1;
    }
    else if (i==3) {
      yMul = 1;
    }
    else {
    }

    for (int j=0;j<tesVal;j++) {
      beginShape(QUAD_STRIP);
      texture(tex);
      float angle =PI/4+ (PI/4)*(float(j)/tesVal);
      float angle3 =PI/4+ (PI/4)*(float(j+1)/tesVal);
      for (int k=0;k<=tesVal;k++) {
        float angle2 = (PI/2)*(float(k)/tesVal);
        float angle4 = (PI/2)*(float(k+1)/tesVal);
        float xRot = rad*cos(angle);
        float yRot = rad*sin(angle2);
        //I guess I am missing some thing at the z vertex
        vertex(xMul*xVal +xMul*rad*cos(angle)*cos(angle2), yMul*yVal+yMul*rad*sin(angle2)*cos(angle), zVal+rad*sin(angle), (xMul*xVal +xMul*rad*cos(angle)*cos(angle2))/(2*a)+0.5, (yMul*yVal+yMul*rad*sin(angle2)*cos(angle))/(2*b)+0.5);
        vertex(xMul*xVal +xMul*rad*cos(angle3)*cos(angle2), yMul*yVal+yMul* rad*sin(angle2)*cos(angle3), zVal+rad*sin(angle3), (xMul*xVal +xMul*rad*cos(angle3)*cos(angle2))/(2*a)+0.5, (yMul*yVal+yMul*rad*sin(angle2)*cos(angle3))/(2*b)+0.5);
      }
      endShape();
    }
  }
}

Hello I am having a problem with fitting 3d objects in my camera view :( can anyone please help?

The basic problem is this:
I have a 3d box(minx,miny,minz,maxx,maxy,maxz)
and a camera looking at the box in the direction (ax,ay,az)
how can I make sure the box fits in the view(width, height)?

thanks!

I'm currently working on a project where I want my processing generated curves exported to dxf.
The DXF library isn't working for me because it exports smooth curves as a lot of small linepieces so I guess Ill have to make a custom dxf exporter.
The problem is that Im currently getting a bit lost in the CatmulRom, Bezier spline, Bspline maze And Im not sure which type of curve can be exported to dxf most accurately. I am using beginShape endShape, with either curveVertex or bezierVertex (i have to chose which one to pick) I am not sure which of the two can be exported accurately/easily.
Does anybody have any experience with exporting curves/splines to dxf? Are you using the curveVertex or bezierVertex in the beginshape? and how accurate is the dxf model?

I'm currently working on a project which I want to have in browser and noticed that some shapes do not render completely. I figured out that it seems to be related to shapes using beginShape and CurveVertex.

this is the basic problem:
If you run the following code in JAVA mode all is well and beautifull (at least you should see a red shape)
In JAVASCRIPT mode however only a few of the shapes triangles are rendered (one to the right and a few small ones in the corners)
Does anybody know a solution to this problem?
Thanks!

void setup() {
  size (400, 400, P3D );
}

void draw(){
background(255);
fill(255,0,0);
stroke(0,255,0);
beginShape();
curveVertex(50,50,0);
curveVertex(50,50,0);
curveVertex(350,50,0);
curveVertex(350,350,0);
curveVertex(50,350,0);
curveVertex(50,350,0);
endShape(CLOSE);
}

Hello, Im a fond user of the proscene library, it really works well for 3d scenes, especially the camera and object manipulations make a solid contirbution to processing. However in the new version of processing 2.0 beta 7 the only way of making webaplications is processingjs and this does not allow the use of java libraries.

I was wondering, is there a plan to make a proscene.js? If not, does anyone know how one could still make a processing 2.0 scene, with proscene, run in a webbrowser?

Just found the proscene library and loving it, Works great for cameras and draging stuff around, It makes my processing project far more user friendly. However I am always stuck with rotating object with left mouse button and draging things with RMB. Anybody know a way to switch this around? Or even move things with LMB so I can put some other interaction on RMB?