Question

Is there a way to compute sth. in a first shader program (eg. screen-space coordinates from word-space ones) and access those results in an another shader program?

#Possible solutions

1. Give up multiple-shader-programs architecture and create one combined shader program
2. Save somehow results to a buffer objects (I couldn't find out if this is possible except computation shaders)
3. Render to texture and read the texture

Is there a nicer solution?

Question

Is there a way to compute something in a first shader program (eg. screen-space coordinates from word-space ones) and access those results in an another shader program?

Possible solutions

1. Give up multiple-shader-programs architecture and create one combined shader program
2. Save somehow results to a buffer objects (I couldn't find out if this is possible except computation shaders)
3. Render to texture and read the texture

Is there a nicer solution?