Sebastian Lague | Neural Networks | E02: predictions (unfinished series) @SebastianLague | Uploaded 6 years ago | Updated 4 days ago
In this episode we look at how neural networks can be represented with matrices, and create a simple feedforward network in python.
Note: at 2:31 the second bias vector should only have two rows, not three.
Code:
https://github.com/SebLague/Neural-Network-python
I owe a lot to this excellent online book on neural networks:
http://neuralnetworksanddeeplearning.com/
Learn more about weight initialization:
http://cs231n.github.io/neural-networks-2/#init
(note: numpy.random.randn and numpy.random.standard_normal are functionally equivalent, the latter just takes a tuple for the shape parameter).
Support the creation of more tutorials:
https://www.patreon.com/SebastianLague
https://www.paypal.me/SebastianLague
In this episode we look at how neural networks can be represented with matrices, and create a simple feedforward network in python.
Note: at 2:31 the second bias vector should only have two rows, not three.
Code:
https://github.com/SebLague/Neural-Network-python
I owe a lot to this excellent online book on neural networks:
http://neuralnetworksanddeeplearning.com/
Learn more about weight initialization:
http://cs231n.github.io/neural-networks-2/#init
(note: numpy.random.randn and numpy.random.standard_normal are functionally equivalent, the latter just takes a tuple for the shape parameter).
Support the creation of more tutorials:
https://www.patreon.com/SebastianLague
https://www.paypal.me/SebastianLague
![[Unity] Procedural Planets (E04: multiple noise filters)](https://i.ytimg.com/vi/H4g-TC__cvg/hqdefault.jpg "[Unity] Procedural Planets (E04: multiple noise filters)
In this episode well add support for having multiple noise filters, and create a new noise filter for producing ridge-like terrain.
Get the project files for this episode:
http://github.com/SebLague/Procedural-Planets
Editor scripts:
https://github.com/SebLague/Procedural-Planets/tree/master/Procedural%20Planet%20Hide%20Editor
Support the creation of more tutorials and get early access to new videos: https://www.patreon.com/SebastianLague")
![[Unity] Procedural Planets (E02 settings editor)](https://i.ytimg.com/vi/LyV7cEQyZMk/hqdefault.jpg "[Unity] Procedural Planets (E02 settings editor)
In this episode well be creating a custom settings inspector for the planet.
Get the project files for this episode:
http://github.com/SebLague/Procedural-Planets
Support the creation of more tutorials and get early access to new videos: https://www.patreon.com/SebastianLague")
![[Ludum Dare #43] The Resistance: Behind the Scenes](https://i.ytimg.com/vi/MoQ5OapRI2c/hqdefault.jpg "[Ludum Dare #43] The Resistance: Behind the Scenes
A game about batteries. Made in 48 hours for the Ludum Dare 43 game jam.
https://ldjam.com/events/ludum-dare/43/the-resistance
Support the creation of more tutorials and get early access to new videos: https://www.patreon.com/SebastianLague")
![[Unity] Procedural Planets (E06: simple biomes)](https://i.ytimg.com/vi/Nxr0z6zKhOI/hqdefault.jpg "[Unity] Procedural Planets (E06: simple biomes)
In this episode we add simple colour biomes to the planet.
Get the project files for this episode:
http://github.com/SebLague/Procedural-Planets
Note:
Two issues have been pointed out which Id like to address: (will add these fixes at end of next video)
1) changing resolution causes uv out of bounds error. This can be fixed by checking mesh.uv.Length uv.Length before assigning the uvs in ConstructMesh method.
2) biome colours appearing in wrong places when zoomed out (on certain devices). To fix this, mipmaps need to be disabled on the planet texture. In the ColourGenerator, replace with:
texture = new Texture2D(textureResolution, settings.biomeColourSettings.biomes.Length, TextureFormat.RGBA32, false);
Support the creation of more tutorials and get early access to new videos: https://www.patreon.com/SebastianLague")
