How do I fill a vertex' shape with an image in processing?

Question

When I use my code it says: No uv text coordinates supplied with vertex() call. This is the code I use:

PImage img;

void setup() {
size(720, 360, P3D);
}

void draw() {
  beginShape();
  img = loadImage("image.png");
  texture(img);
  vertex(50, 20);
  vertex(105, 20);
  vertex(105, 75);
  vertex(50, 75);
  endShape();
}

Answer 1

Like your error and George's comment say, to use a texture you need to pass in 4 parameters to the vertex() function instead of 2 parameters.

From the reference:

size(100, 100, P3D);
noStroke();
PImage img = loadImage("laDefense.jpg");
beginShape();
texture(img);
vertex(10, 20, 0, 0);
vertex(80, 5, 100, 0);
vertex(95, 90, 100, 100);
vertex(40, 95, 0, 100);
endShape();

_{(source: processing.org)}

Also note that you should not be loading your image inside the draw() function, because that causes you to load the same image 60 times per second. You should load it once from the setup() function.