I'm working on SSAO right now and I wanted to code it myself. But right now I'm at the point that I don't understand the basics anymore.
So to split it up:
I need a depth map. First I thought I need a depth map like the one Riemer used in his HLSL tutorial. (http://www.riemers.net/eng/Tutorials/XNA/Csharp/Series3/Shadow_map.php)
Then I found out that I need a depth map that is normal based. So I had 2 options. One of them was a view dependant normal map and a world dependant. I tried both, the results were awful with SSAO.
Then the SSAO texture:
I understand the theory how it is done. But looking at the code from Inigo Quilez which is written in GLSL doesn't really help me.
I don't know what he's doing in these lines.
vec4 zbu = texture2D( tex0, gl_Color.xy ); vec3 ep = zbu.x*gl_TexCoord[0].xyz/gl_TexCoord[0].z; vec4 pl = texture2D( tex1, gl_Color.xy*fres.xy );From what I read, tex0 is the depth map and tex1 is a random normal texture.
Guess I have to stop now, my brain is spinning in circles.
I appreciate every tip you can give.
Regards
