The render engines used in SH3D aren't written in java, they are external native code called using JNI.

By the way I'm working on a solution to unload our CPUs while rendering, I will provide more details in the next weeks. Stay tuned!

Hi, any news about that?

After some more tests, i can confirm that another workaround is to reinstall Sweet Home 3D in 32 bits (if in 64 bits actually) and force it to use DirectX using the informations in the documentation/faq meaning in adding this file in the install directory : http://www.sweethome3d.com/SweetHome3D.l4j ...

For anybody that need to use Sweet Home 3D without rollback drivers etc... It seems to be working with te DirectX Version .jnlp that you can download here : http://www.sweethome3d.com/SweetHome3D-DirectX.jnlp
Quick and easy workaround but clearly not a final solution...