TrimeshColors

[vsquared]

Is this why you like set_fill(indx,color)? I got to admit this stuff is pretty cool.

# Uses Imported mode for py5

import trimesh
from trimesh.primitives import Box

def drawMyBox():
    global myBox
    myBox = convert_shape(Box((150,150,150)))
    for i in range(0, myBox.get_vertex_count()):
        myBox.get_vertex(i)
        myBox.set_fill(i,color(random(255),random(255),random(255)))
    
def setup():
    size(600, 600, P3D)
    window_title("Rotate with mouse and click to change colors.")
    stroke_weight(3)
    drawMyBox()
    
def draw():
    background(209)
    translate(width/2, height/2)
    rotate_y(remap(mouse_x, 0, width, -PI, PI))
    rotate_x(remap(mouse_y, 0, height, PI, -PI))
    shape(myBox)
    
def mouse_pressed():
    drawMyBox()

Alternate technique using set_fills():

# Uses Imported mode for py5

import trimesh
from trimesh.primitives import Box

def drawMyBox():
    global myBox
    myBox = convert_shape(Box((150,150,150)))
    myBox.set_fills(color(random(255),random(255),random(255)) for _ in range(36))

def setup():
    size(600, 600, P3D)
    window_title("Rotate with mouse and click to change colors.")
    stroke_weight(3)
    drawMyBox()
    
def draw():
    background(209)
    translate(width/2, height/2)
    rotate_y(remap(mouse_x, 0, width, -PI, PI))
    rotate_x(remap(mouse_y, 0, height, PI, -PI))
    shape(myBox)
    
def mouse_pressed():
    drawMyBox()

[villares]

Very nice! You might want to remove the line myBox = create_shape() on drawMyBox(), and you also don't need global myBox in setup() as you are not assigning anything to it! :)

[vsquared]

Edited to reflect your suggestions. Thanks.

[hx2A]

Nice work, @vsquared . For a shape with many vertices, the one with set_fills() will be noticeably faster because there are not many calls to Java in a for loop.

Trimesh supports the construction of complex shapes using boolean operations. Why don't you explore what Trimesh can do with that? You can get interesting results!

[vsquared]

Trimesh supports the construction of complex shapes using boolean operations.
Not sure how to go about that; this is the first time I've had any experience using it.

[villares]

https://github.com/villares/sketch-a-day/blob/main/2024/sketch_2024_02_11/sketch_2024_02_11.py

[hx2A]

Great example, @villares !

@vsquared , to do this, you'll also need to install a 3D modeling program for trimesh to make calls to to do the geometry calculations. I think the options are OpenSCAD and blender, but am not sure.