Hi again,

I'm rendering a scene with a material with only a texture (diff). This requires about 4 GB while rendering. As soon as I add a 4096x4096 displacement map the memory consumption rises to 12 GB! The more I add the more it rises. Also the initialization takes significantly longer. With a couple of displacement maps I'm at 25 GB memory consumption in comparison to 4 GB when rendering without.
Do displacement maps really require that much memory??
Is there a way to reduce the memory explosion a bit?

Thanks in advance,

Günther

Review your displacement map to see if it is RGB or greyscale. For displacements, you typically only need greyscale. Consider saving them that way. Dropping those two other channels could save you some memory. Just remember to specify the image as Float instead of Color when you connect them to the shader.

Hi Enivob,

both helped a lot! Especially specifying Float instead of Color reduces memory consumption massively.
Thanks again! :-)

G.