Print at Dec 19, 2025, 1:15:37 PM

Posted by Eli_s at Jul 6, 2020, 8:13:39 AM
sad   Re: Rendering speed is extremely slow comparing to a similar image.
Hey Enko,

Thank you for your reply.

By mistake I added the same captions to both images, the upper one is actually model A. Sorry for that. I'll re-add them here with correct info.
Are the 2 models in the same file or in different files? Each file has its own saved rendering settings.

The different models are in separate files but i'v went over the rendering settings and made sure they are the same. Even when I render model A with 3D models of sculptures and framed photo's on the walls it still renders much faster than model B.
Do you notice the same time difference with the standard Sweet Home 3D photo panel that uses the SunFlow rendering engine?

I tried rendering them both with the standard SH3D "Create photo" dialog and it appears to work similarly, Model A rendering noticeably faster than Model B.

When I use the "Simple photo rendering 2.0" plugin and chose Yafaray as the engine it is as slow or possibly slower than the SunFlow engine but the standalone YafaRay 1.3 Plugin works substantially faster.. any ideas why is that?
Or maybe its possible to change the "Simple photo rendering 2.0" YafaRay settings to be like the ones of the standalone one (which I don't know) to make it work as fast?

Could subtle differences (a slightly lower ceiling, different textures, a couple more doors, etc') in the design of these two empty models could lead to such a dramatic difference in rendering time?

Unfortunately at the moment I can't share the models because its a work in progress.. sorry for that.

Many thanks!
E.