PImage myTexture;

void setup() {
	size(500,500,P3D);
	myTexture = loadImage("tex1.png");
}

void draw() {
	background(#CCCCCC);
	textureMode(NORMAL);

	pushMatrix();
		translate(width/2,height/2);
		scale(300);

		strokeWeight(0);
		noStroke();
		noFill();
		tint(#FF3300);

		beginShape(QUADS);
			texture(myTexture);
			vertex(-0.5, -0.5,   0,0);
			vertex( 0.5, -0.5,   1,0);
			vertex( 0.5,  0.5,   1,1);
			vertex(-0.5,  0.5,   0,1);
		endShape();
	popMatrix();
}