Planet Curvature

[WesVirBELA]

Would love to be able to have the curvature of the earth taken into account while rendering Crest. I imagine it could be simply a 'Y offset' evaluated at each pixel based on a user-defined planet radius. Would be a great enhancement for those of us using Crest alongside weather/sky systems that account for planet curvature such as Weather Maker.

Thank you!