Try to "multiply" instead of "mix". This works fine when adding dirt.

Allright... I think I`ll change my workflow, set textures in SU and add material detail in octane. The scale problem is still the same- even if I work with sketchup standard materials without textures the applied materials from the LiveDB are too small... the model seems to be imported 10.000% size ...

Thanks for the information TIG. There is a preset of materials in octane - in the socalled Live DB - an I wanted to replace my SU-materials with those materials in octane.
But these materials are not scaled correctly- as described above.
I have already worked on with my SU-materials and own ...

When I export from Sketchup8 to Octane, I have some problems with material/texture scale...
Using the SU standard material without any texturing the applied LiveDB material in Octane is much too small. I checked all unit settings are meters in SU and in Octane import.
While replacing my Sketchup ...

Hi, so here comes my second try, hope you like it. Helpful suggestions and comments are welcome!!!

thanks, adiarc.
@ matias. the background is postproduction. enabled alphachannel in the preview kernel helped a lot. the final result is a combination of DL, PT and background image
@ Elvissuperstar007. i also think my materials need improvement. i'm still searching for good tutorials or ...

Thanks for your support. I really had to change some screen settings! So here is the final result - hope you like it.

So here comes the next try. @ribrahomedesin: the cars were much too big, cant believe I didnt see that before @adiarc, yes, I think the trees look much better now. cars still need some changes.

Did not know before that you can smooth via textures. Thank you.

Hello, I would like to share my first Octane Rendering - work is still in progress, thank you for any comments.