I used Terragen decade ago . To render a static sky texture I mean. Have not updated it for pretty a while. Did it in Vue too but it was a hellish experience. I don't like Vue at all As of HDRI you can actually edit LDR picture into HDR one manually in something like Affinity photo that has better 32 bit mode support than…
Forget about boxes . it's an ancient thing from a time when evry triangle was on count. As of the skydomes I used Hugin last time I did it. Decade ago actually . The main problem with a sky is not how to do it but rather where to shoot it . I recall I had my own list of abandoned places with broken locks to access roofs.…