My understanding is that the Earth's orbital and orientation parameters have not changed noticeably since the last glaciation. The only difference is in the amount of ice, waterlevels and cloudcover. Those are shown by using a different Texture and a different CloudMap. In other words, you need to use your favorite paint program to create appropriate maps.
They can be shown at the right dates by replicating the current definition of the Earth (which is in solarsys.ssc), changing the Texture name, and adding Beginning and Ending directives to control when the glaciated Textures are shown.
I would use an SSC something like this:
Code: Select all
Modify "Earth" "Sol" {
Beginning "-10000 1 1" # start of current inter-glacial period
}
"Earth-Wurm-Wisconsin" {
Beginning "-108000 1 1"
Ending "-10000 1 1"
Texture "Wurm-Wisconsin-glaciation.*"
# followed by all other Earth parameters except for Texture
}etc.
