Challenge #799 (12/10/18) Entries CLOSED

[Photox (Tim Gregory)]

#ignore

I wanted to write a greeble script, but I had to settle for something I could finish in like 3 hours. I’ve always wanted a displace option that takes into account the mesh density. This script displaces each vert individually as a percentage of its shortest connected edge. There are 2 parameters, displace strength along the normal, and displace globally in x,y,z. Currently it it still possible for the script to return overlapping geometry on thin geometry, like suzanne’s ear, as the script does not check for verts nearby in 3-d space but far away in edges. The script creates a duplicate object of the active object and will not alter the original object.

# MIT license
# 2018, Photox

import bpy, bmesh
import random

displace_strength_along_normal = .8  #  Best if in 0.0 to 1.0 range) > 1.0 may give you overlapping geometry
displace_strength_global = .4

def get_shortest_connected_edge_length(my_vert, my_bm):
    shortest = 1000000.0
    for e in my_bm.edges:
        if my_vert in e.verts:
            if e.calc_length() < shortest:
                shortest = e.calc_length()
    return shortest 
 
bm = bmesh.new()
bm.from_mesh(bpy.context.object.data)

ob = bpy.context.object
new_name = ob.name + '_smart_displaced'

matrix_world = ob.matrix_world

for v in bm.verts:
    shortest_connected_edge_length = get_shortest_connected_edge_length(v, bm)
    random_displace_maxima_normal = shortest_connected_edge_length * displace_strength_along_normal
    random_displace_maxima_global = shortest_connected_edge_length * displace_strength_global
    
    r_normal = random.uniform(-1.0 * random_displace_maxima_normal, random_displace_maxima_normal)
    r_global = random.uniform(-1.0 * random_displace_maxima_global, random_displace_maxima_global)
    v.co += r_normal * v.normal
    v.co += v.co * r_global

for v in bm.verts:
    #v.co += v.co * r_global
    v.co = matrix_world * v.co #  re-apply the object mode loc,rot, and scale. 
    
mesh_smart_displace = bpy.data.meshes.new(new_name)
bm.to_mesh(mesh_smart_displace)
o = bpy.data.objects.new(new_name, mesh_smart_displace)
bpy.context.scene.objects.link( o )
bpy.context.scene.update()

[david.speer]

Pure
1000 Samples
“Double Horizon”
Abstract art follows a narrow line between art and chaos.

[david.speer]

Nice entry beau11, do you happen to still have your presculpt wip image from over the weekend?
I remember it being very cool as well!

[beau11 (Beau Chapman)]

Do you mean my first iteration of the project? If so I do have it.
NOT AN ENTRY

[david.speer]

Yep, exactly. Thank you for posting it.
I love this version too!

I really enjoyed the contrast in this image, the paint strokes on the right side, they really appear like oil on canvas, did you make those in blender?

[Photox (Tim Gregory)]

"Here"

Non-competing. Cycles, 5 samples.

[beau11 (Beau Chapman)]

I didn’t make those in blender. It’s a background image, but I made it a much smaller part of the scene in my later iterations in order for me to keep it Pure-ish

[Millani]

Ok, so I finished my entry and the script. If anyone is curious, I released the script and wrote a bit about it here.

[fcharr (Francisco Charrua)]

love the new version!

[david.speer]

Millani,
Very nice!
Your new image is amazing.

[david.speer]

Got it. Makes sense.
Its a very cool image!

[beau11 (Beau Chapman)]

Haha thank you I haven’t touched on the abstract side of art for a minute so it’s refreshing.

[PyBlend]

"Flee the Chaos"
Pure, Competing, Cycles 128 Samples, Denoising

I was short of time again this week, so here is a quick, ~1 hour for model/texture, just for fun. I like how it turned out.

[Millani]

@Photox I just quickly looked through your script, and I was wondering if you could assign

o.matrix_world = ob.matrix_world

instead of applying the matrix to the vertices.

The effect looks interesting, by the way. Like clay or something.

[Photox (Tim Gregory)]

o.matrix_world = ob.matrix_world

Oh that is much better! Otherwise the orientations are basically applied. Version 1.1 IS born!

[MadeWithFeet]

Same, it looks really good !

[DM9]

This is a great idea for this theme, although I can´t find any “Mugo” in there, but I take your word for it. ^^ … It might be easier to find if one would know what to look for?

[id211]

Super pretty image! But I have no idea what you are talking about haha, Ive done some modifier based procedural modeling but this is another level. Any links you could provide to read up on this kind of stuff? sounds super interesting!!

[joshwinkler3d]

@DM9 Thanks for the feedback - good point about Mugo. I updated the image, does it help much?

[anon72338821]

Title: organized chaos ? .
Not competing (ofcourse)