LumenRT looks good, but does it make me an exe file?

Got it cut a ~50MB. I tried Revizto, but couldn't manage to apply the texture to the fbx, because fbx don't include textures. Any ideas? Thanks for the help though.

How do I do that purge?

I made a project about my school in Sketchup and the file size of the .skp file is ~300 MB, the .fbx is over 2GB and .dae is around 200MB.
I need some advice/help to be able to walkthrough the entire project in a program (which makes me an executable file and i can walk in it.).
I already tried Flow Architect Studio and Easy Walk 3D but there were errors importing the big file. 3Dvia only allows 25MB. WalkAbout3D freezing all the time i use it.
Do you have any suggestion to me?

...got it the problem was that at the IES lights the "soft shadows" was on.

The power is set to 1800,00, and the bathtub reflection is 2,5 TexFresnel

Oh yes i forgot it's v-ray and those are IES lights.

**Hello all, im making an interior project for practicing.

My render is somehow a bit grainy at the bathtub. Can someone explain this problem and how can i solve? I know it is dark but my problem is now the grany part.**