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I have an earth model im working on. It has several spheres around the earth sphere, one has opacity mapped clouds with displacement or bump on (ive tried both with minimal difference in rendertimes.)
above that are two spheres with falloff maps and gradient ramps to give the nice blue soft-edged atmosphere.
rendertimes are awful. If i zoom it till the illuminated part of the earth fills the screen(which i will have to) im looking at 1.5 hr + at 4k, on a 64 core machine. renderfarm costs will be astronomical.
if i hide the two outer atmosphere spheres, the rendertime for the earth and cloud layer is about 5 minutes at 4k!
the atmosphere spheres themselves render in about 4 mins.
what gives?!
"comp them in post" obviously..
however if i screen them on in AE, it doesnt look half as nice, i lose the "foggy" effect and i also get the stars behind the atmosphere edge brightened rather than obscured by the atmosphere. im not sure how to comp it in this case.
basically it would be way easier if i could render in one hit. i dont understand why the rendertimes explode by so much with just one or two extra layers of transparency. any suggestions to speed things up? im already using "stochastic"
the inner atmospheric sphere i can combine with the cloud layer using blendmtl... this makes a small improvement in rendertime and looks quite similar ( some difference with brightness and bump maps on clouds.. but the other layer needs to be on a larger sphere to get the soft edge to atmos.
any tricks?
id send a file but the textures alone are 10+GB
above that are two spheres with falloff maps and gradient ramps to give the nice blue soft-edged atmosphere.
rendertimes are awful. If i zoom it till the illuminated part of the earth fills the screen(which i will have to) im looking at 1.5 hr + at 4k, on a 64 core machine. renderfarm costs will be astronomical.
if i hide the two outer atmosphere spheres, the rendertime for the earth and cloud layer is about 5 minutes at 4k!
the atmosphere spheres themselves render in about 4 mins.
what gives?!
"comp them in post" obviously..
however if i screen them on in AE, it doesnt look half as nice, i lose the "foggy" effect and i also get the stars behind the atmosphere edge brightened rather than obscured by the atmosphere. im not sure how to comp it in this case.
basically it would be way easier if i could render in one hit. i dont understand why the rendertimes explode by so much with just one or two extra layers of transparency. any suggestions to speed things up? im already using "stochastic"
the inner atmospheric sphere i can combine with the cloud layer using blendmtl... this makes a small improvement in rendertime and looks quite similar ( some difference with brightness and bump maps on clouds.. but the other layer needs to be on a larger sphere to get the soft edge to atmos.
any tricks?
id send a file but the textures alone are 10+GB
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