Textures on 3D object showing as solid color

CodeSloth

I've created a rotating 3D pyramid as a createShape(GROUP) and applied a texture to each side but they display as a solid color instead of the image. The code seems to be correct in comparison to working examples online but I must have something wrong. Any assistance is greatly appreciated.

    PImage img;
    PShape pyramid,side1,side2,side3,side4,base;

    void setup()
    {
      size(940, 540, P3D);
      colorMode(HSB);
      background(0);
      textureMode(NORMAL);
      img = loadImage("galaxy.jpg");


      pyramid = createShape(GROUP);

        side1 = createShape();
        side1.setTexture(img);
         side1.beginShape();
          side1.vertex(-100, -100, -100);
          side1.vertex( 100, -100, -100);
          side1.vertex(   0,    0,  100);
          side1.endShape(CLOSE);
         side2 = createShape();
         side2.setTexture(img);
         side2.beginShape();
          side2.vertex( 100, -100, -100);
          side2.vertex( 100,  100, -100);
          side2.vertex(   0,    0,  100);
         side2.endShape(CLOSE);
         side3 = createShape();
         side3.setTexture(img);
         side3.beginShape();
          side3.vertex( 100, 100, -100);
          side3.vertex(-100, 100, -100);
          side3.vertex(   0,   0,  100);
         side3.endShape(CLOSE);
         side4 = createShape();
         side4.setTexture(img);
         side4.beginShape();
          side4.vertex(-100,  100, -100);
          side4.vertex(-100, -100, -100);
          side4.vertex(   0,    0,  100);
         side4.endShape(CLOSE);
         base = createShape();
         base.setTexture(img);
         base.beginShape();
           base.vertex(-100,-100,-100);
           base.vertex(100,-100,-100);
           base.vertex(100,100,-100);
           base.vertex(-100,100,-100);
         base.endShape(CLOSE);

          pyramid.addChild(side1);
          pyramid.addChild(side2);
          pyramid.addChild(side3);
          pyramid.addChild(side4);
          pyramid.addChild(base);
    }

    void draw()
    { 
      background(0);
      noStroke();

         translate(width/2, height/2, 150);
         rotateX(speedMod*(frameCount*PI/200));
         shape(pyramid);
    }
 }

jeremydouglass

Brainstorming --

1. should you call pyramid.beginShape() / pyramid.endShape()?
2. should side1.setTexture(img) be inside side1.beginShape() / side1.endShape? And the same for all others?
3. have you tried side1.texture() vs. .setTexture()? I'm not sure, but it might matter.

koogs

You aren't using any texture coords in your vertex calls, I think you need the 5 argument version.

CodeSloth

For texture() you need u v coords but for PShapes you're supposed to be able to use setTexture without them. It's the main reason I did them as PShapes. I'll see if I can get it working with texture()

kfrajer

@CodeSloth

Try this

  side1 = createShape();        
  side1.beginShape();
     side1.Texture(img);
     side1.vertex(-100, -100, -100);
     side1.vertex( 100, -100, -100);
     side1.vertex(   0,    0,  100);
   side1.endShape(CLOSE);   // ** NOT sure if you need CLOSE here... I don't use it in my code.

Kf

koogs

For texture() you need u v coords but for PShapes you're supposed to be able to use setTexture without them

Citation needed...