Ray Tracing [C++ & SDL2] - Episode 17 - Normal Maps (Part 1)

Ray Tracing [C++ & SDL2] - Episode 17 - Normal Maps (Part 1)

Part 1 of a new mini-series looking at normal maps. Normal maps, sometimes known as bump maps, can be used to add detail to a surface, without adding geometry. In this episode, I go over the basics of how normal maps work and how they can be implemented, concluding with implementing a very basic random normal map to make 'rough' looking surfaces. In the next episodes I will go on to look at texture based normal maps and image based normal maps.

#raytracing #graphics #cplusplus

As with all of my videos, I show the code that I have developed to solve the particular problems that I need to solve, with the hope that it may provide sufficient background and inspiration to allow you to go on to develop your own code if you wish to. My code may not be the most appropriate solution to the problem you are trying to solve, so I urge you to consider the problem carefully and decide for yourself on the most appropriate solution. I make every effort to ensure that my code works as it should and is free of bugs, but of course I cannot provide any guarantees. If you use my code as shown, I strongly encourage you to make sure that you test it thoroughly to ensure that it works as you need it to. If you find a bug, do please let me know in the comments!

**********************************

Other episodes of this series can be found here:

Episode 1 (Introduction and basic code):
https://youtu.be/JN5yUrJPThI

Episode 2 (Camera geometry):
https://youtu.be/KBK6g6RFgdA

Episode 3 (Ray - Sphere intersections):
https://youtu.be/8fWZM8hCX5E

Episode 4 (Simple lighting):
https://youtu.be/dUtkihuUvvo

Episode 5 (Geometric transforms):
https://youtu.be/-Apu2BNp3t8

Episode 6 (Planes & shadows):
https://youtu.be/9K9ZYq6KgFY

Episode 7 (Simple materials):
https://youtu.be/F5vIgpRF_Qo

Episode 8 (Cones & Cylinders):
https://youtu.be/UTz7ytMJ2yk

Episode 9 (UV space & textures):
https://youtu.be/d35gDi98gEY

Episode 9a (Image textures):
https://youtu.be/lGTa8ceYIjA

Episode 10 (Refractive materials):
https://youtu.be/6slB1euGMFw

Episode 11 (Fixing the normals):
https://youtu.be/5lDRXL5zQDo

Episode 12 (Boxes):
https://youtu.be/Fg-_f1L-6dI

Episode 13 (Ray tracing vs. Ray marching)
https://youtu.be/4408vlE_60Y

Episode 14 (Procedural Textures - Part 1)
https://youtu.be/5fuE4mTu8Cg

Episode 15 (Value Noise)
https://youtu.be/iuJKrOtne_Y

Episode 16 (Gradient Noise)
https://youtu.be/K-Tp8ucK3CU

The GitHub repository for this series can be found here:
https://github.com/QuantitativeBytes/qbRayTrace2

The GitHub repository for my linear algebra library can be found here:
https://github.com/QuantitativeBytes/qbLinAlg

**********************************

You can also follow QuantitativeBytes on Facebook:

www.facebook.com/QuantitativeBytes

Видео Ray Tracing [C++ & SDL2] - Episode 17 - Normal Maps (Part 1) канала QuantitativeBytes