25-person-hologram-animated.py

# Imports OBJ meshes, about 2 MB each, and then duplicates the meshes, inserting keyframes for each object
# resulting file is > 100 MB

import bpy, numpy
from mathutils import *

radius = 50
n_samples = 25

bpy.ops.import_scene.obj(filepath="./woman_standing.obj")
bpy.ops.group.create(name="woman")
bpy.ops.import_scene.obj(filepath="./man_standing.obj")
bpy.ops.group.create(name="man")

samples = numpy.random.multivariate_normal([-0.5, -0.5], [[radius, 0],[0, radius]], n_samples)

for point in range(len(samples)):
    locX = samples[point][0]
    locY = samples[point][1]
    if(numpy.random.sample() > 0.5):
        bpy.ops.object.group_instance_add(group='woman',location=(locX,locY,0))
    else:
        bpy.ops.object.group_instance_add(group='man',location=(locX,locY,0))


allObjects = bpy.data.objects
allObjects = [x for x in allObjects if "man" in x.name]
numpy.random.shuffle(allObjects)
print(len(allObjects))

for blues in range(5):
    thisFigurine = allObjects[blues]
    firstPos = thisFigurine.location    
    thisFigurine.keyframe_insert('location',frame=0)        
    thisFigurine.location = Vector(((-blues * 6) - 10,0,35))
    thisFigurine.keyframe_insert('location',frame=30)   

for reds in range(5,10):
    thisFigurine = allObjects[reds]
    firstPos = thisFigurine.location
    thisFigurine.keyframe_insert('location',frame=31)      
    thisFigurine.location = Vector((((reds - 4) * 6) + 10,0,35))
    thisFigurine.keyframe_insert('location',frame=60)   

        
bpy.ops.export_scene.fbx(filepath="./25peopleShortAnim.fbx",version="ASCII6100") # ascii compatible with 3D Viewer
bpy.ops.wm.save_as_mainfile(filepath="./25peopleShortAnim.blend")
# bpy.ops.export_scene.fbx(filepath="./binout.fbx") # ascii compatible with 3D Viewer