abaczkowski
Huud
/ Generate Normal Map From Height Map.py
Last active
May 7, 2024 17:55
Generate Normal Map From Height Map
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| # A fast - numpy based - CPU functions that take a height map and generate a normal map from it | |
| import numpy as np | |
| import matplotlib.image as mpimg | |
| # a function that takes a vector - three numbers - and normalize it, i.e make it's length = 1 | |
| def normalizeRGB(vec): | |
| length = np.sqrt(vec[:,:,0]**2 + vec[:,:,1]**2 + vec[:,:,2]**2) | |
| vec[:,:,0] = vec[:,:,0] / length | |
| vec[:,:,1] = vec[:,:,1] / length |