GLSL questions for beginner

Beginners
1

Hi,

I’m new to GLSL and coding and would love to learn more.

Few questions about GLSL, what do the following mean -

Uniform
Vec3
Vec4
Float
Return

What exactly is a ‘shader’?

Is there a good primer or beginners video course to all this? Been following @raganmd tutorials which have been amazing! Learned loads and just want to fully immerse myself in it and learn the basics and build it up!

Thanks!
GL

2

you can start here https://thebookofshaders.com/

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3

just answering for the words. Nettoyeur reference is a must.

uniform : importing a value from outside as in
uniform float myUnif;
You have to declare it in the glsl operator
vec3 : vector with 3 dimensions (xyz or rvb)
vec4 : vector with 4 dimensions (xyzw or rgba)
float : decimal number
return : function output

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4

Thank you both! This is tremendously helpful! I have been reading the book of shaders, i am determinded to be a master karate kid style on the basics like it says before i advance onwards.

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