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UsingBlender.md

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Using Blender

Instead of trying to draw a depthmap, why not generate one from 3-D?

Step 1: Prepare

  1. Download Blender at https://www.blender.org
  2. Open ObjectToDepthmap.blend

Note: Do NOT move the camera

Step 2: Get a 3-D model

  1. Get any desired 3-D model and import it into Blender
  2. Go to Properties Screen->Material
  3. Set the Material to "F Z-Dist"
  4. Go to the 3-D View screen
  5. Set Viewport Shading to "Material"

Step 3: Fiddle with the settings

  1. In the Outliner screen, select your object

  2. Go to the Node Editor screen

  3. Fiddle with the Add and Multiply values until:

    1. The furthest visible point is not black, but close, and
    2. The closest visible point is not white, but close

    Note: the Multiply value should always be negative

Step 4: Export and Crop

  1. In the Info toolbar, click Render->Render Image
  2. In the UV/Image Editor toolbar that pops up, click Image->Save as image
  3. Save your image anywhere
  4. Open your favourite image editing software and crop the image to the desired area
  5. Save the modified image

Done!

Now point PyStereogram.py towards your image, then look in the Output/ folder for your new image!