Texturing problem

[Ainionu]

Hi there! Need some advice how to overcome this kind of problem. Textures act very weirdly and somehow like distorting geometry. I'm sure it is very typical mistake I have made somewhere on the road..., but I cannot find solution for this. All polygons are alligned normally, there is no overlapping geometry...

[bepeg4d]

Please check the c4d Phong tag, and lower the value at something like 20°, or less.
Alternatively, you can uncheck the Smoothing option in the Octane materials, Common tab.
ciao Beppe