View source for Animate Map with Blender

== Introduction ==

== Get and edit the data ==
=== Download Data ===

Download data from https://www.maanmittauslaitos.fi/ . The Licence is Maanmittauslaitoksen avoimien aineistojen CC 4.0 -lisenssi. There can be found
* Map
* Air photos
* Height model

== GIMP: Make a larger image ==

Change the Canvas size of each three downloaded image
* Image → Canvas Size. Height to 2x. 
Superpose the images: make it larger.

== Python: Adjust the scale of the 3d map ==
Load the image, concatenate and scale it. Then save. <syntaxhighlight lang="python3">
import rasterio
import numpy as np
from PIL import Image

names = ['Q4121F.tif', 'Q4122E.tif']

imgs = []
for n in names:
    imgs.append(rasterio.open(n))

image = imgs[0].read(1)   
print( np.shape(image) )
for img in imgs[1:]:
    tmp = img.read(1)     
    image = np.concatenate( (tmp, image  ), 0)

print( np.shape(image) )
print( image.max() )
print( image.min() )
image = 256*(image-image.min())/(image.max()-image.min())
im = Image.fromarray( image )
im = im.convert("L")
im.save( "heightModel1.png" )
</syntaxhighlight>Easy, fast.

== GIMP ==

Superpose the images and crop to correct size.

== Blender ==

<youtube>RMX4xWUAAk4</youtube>

* Add (the earth) plane
* Change the size
* Image Texture
* Add some light to the World
* Make 3d plane (earth)
** Modifier → Displacement
** Texture → heightmodel.png
** Edit mode → subdivide 
** Object → Shade smooth
** Modifier → Subdivide
* Render F12
* Make the Glass cube
** Move, rotate, scale. Use N
** Modifier → Bevel
** Material → Glass BSDF. Roughness
* Render Engine → Cycles
* Add → Sun
* Make the animation
** Add → Path
** Edit mode: E extrude uudet pisteet
** Move the camera
** Add object constraint: Follow Path. Offset. I 
* Turn the camera
** Add → Empty Cube: Camera Follow Spot
** Add Object Constraint: Tracking, Track To
** Animation & Graph Editor 
* Make the smoke
** Shift D Duplikoi. Skaalaa, siirrä
** Object → Quick effect → Smoke
** Cube Glass Smoke → Uncheck Flow 
** Smoke Domain → Buoyancy density 
* Animate
* Add → Light → Spot. Power 5000 W
* The Fog
** Add → Mesh → Cube
** Material → Surface → Disconnect
** Volume → Scatter. Density 0.002
* Mix the map and photo
** Shader Editor. Mix & Factor.