What Is Perlin Noise? Procedural Generating in Video Games

A short video covering Perlin Noise and how it's used in video games.

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[nathanroed]

I wish this was how perlin noise worked, but in reality, it is far more complex. in essence, a n grid is formed in space and a random gradient is created at each vertex. 4 vectors are then formed from nearby vertices of the grid to the vector. the perlin noise algorithm then uses an easing curve and finally interpolates the vectors into a single value which it returns as the perlin value for that single point.

[thomaskerbrat]

"The possibilities with Perlin noise are limited only to your own creativity."
You nailed it!

[constantinkirsten]

Short and very well-explained (verbally and visually) - More videos should be like this :) thank you!

[aadenboy]

This is a nice explanation, thank you!

[guckstift]

This is not Perlin Noise. Scattering a hand full of black pixels and than blurring them out would just result in randomly placed even size blobs.

[daomingo]

If I had a picture similar to a hightmap. How would i tell Unity what to do with that image?:0
How would someone undergo the "translation" from a Black pixel in the image to lets say a tile in unity 2d?

[cringeSpeedrunner]

Unfortunately, this is not perlin noise :(