I´ve been working this week on the minecraft project and I did some progress:
I worked on:
- Normal map.
- Specular map.
- Particle system for the clouds.
- General improvements.
The normal maping thing was one of the hardest things I´ve ever worked on ...
I spent more than one week to have it working!
Here I show you a few lines kinda important if you want to make something like this:
You must work in camera/view space so first you should put your camera vector/view into view space:
EyeDir = vec3(u_view * vec4(position,1.0));
You will need too to send the tangent+normal to the shader , both are important if you are working on this stuff in a 3D space.
Then with this two you can calculate the bitangent:
vec3 b = cross(n, t);
Those things for me were the most hard to make work, hope it helps.
See you.
