Can't see shape within another transparent shape

Programming Questions

prismspecs

Can't see shape within another transparent shape

in Programming Questions • 6 months ago

Hey all

size(640, 360, P3D);
background(0);
lights();
blendMode(ADD);
noStroke();
pushMatrix();
translate(130, height/2, 0);
rotateY(1.25);
rotateX(-0.4);
fill(255,255,255,100);
box(100);
fill(255,0,0,255);
sphere(50);
popMatrix();

So I can't see the red sphere inside the box. I figure it's a blending option I'm unaware of, but I can't find anything in the reference. Ideas?

Replies(1)

monkstone

Re: Can't see shape within another transparent shape

6 months ago

Don't know why, but does this work? requires processing-2.0 (no need for blend?, which in processing I think is only a 2D thing anyway, for 3D blending in processing-1.5.1 see this).

PShape cube;
PShape ball;
void setup() {
size(640, 360, P3D);
noStroke();
cube = createShape(BOX, 100);
cube.setFill(color(200, 200, 200, 100));
ball = createShape(SPHERE, 50);
ball.setFill(color(200, 0, 0, 255));
}
void draw() {
background(0);
lights();
pushMatrix();
translate(130, height/2, 0);
rotateY(1.25);
rotateX(-0.4);
shape(ball);
shape(cube);
popMatrix();
}

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Can't see shape within another transparent shape

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