Trying to give more realism to materials

[medzo]

Hi

I have been struggling with plastic material setup. I am satisfied with normal setup without dirt images (clean surfaces), but when i start to incorporate dirt images ... well i am doing something wrong ... can anybody sugest me how too incorporate dirt images into materials?

I am attaching the render and scene

01_glossy_02_mat_03_glossy image_04_mat image

scene without dirt image

_test studio_black plastic.zip

(492.29 KiB) Downloaded 225 times

and a link to whole scene with dirt image

http://wtrns.fr/OVLporai2F6OC1x

Thanks!

[Janusz Biela]

Try maybe by this way. I do it with all my surfaces. Basic setup plus clone textures and mix them with layers (multiply, difference , etc) I hope this will help.
But problem is not with setup, more important is imagination how should looks surface, what kind gray scale map should be use to emulate blur or reflection and bump map...