This is Cycles:wink:
Thank you! I didn’t use any textures for background, it is simple dark green. I placed several area lights.
Thank you for your comments:)
It was my first time making tires, so I maybe failed to express right detail.
I think that your feeling is due to this Defocus-strengthened camera setting.
May I ask what render settings have you decided to go with? I put 5000 samples and still experience some fireflies. Your renders seem flawless, artistically and technically!