getting rid of 'stain marks' in cushion

[carlotristan3d]

i can't get rid of the 'stain' like marks on my cushion (refer to image). it's not the materials, settings, or lighting because the problem only affects the cushion. the cushion btw are free stuff from evermotion. using mental ray with fg & gi. i suspect the problem is the model itself, appreciate any help out there.

[RevitGary]

I am guessing it is the uv map. Apply uv map modifier and tweak the settings see if it changes.

[carlotristan3d]

I am guessing it is the uv map. Apply uv map modifier and tweak the settings see if it changes.

yup.done that, but still got same results.

[RevitGary]

ok maybe its a reflection make it a matte material.

[Justin Hunt]

Are you creating a new GI and FG solution each time are using a saved solution?

 

Also try the FG radius method instead of the interpolate.

 

jhv

[RevitGary]

Render the region with a gray color overide. This will give you a clue as to if it is material or lighting problem.

[Tommy L]

Its a an incorrect precalculated light solution. You need to re-calc your lighting.

[carlotristan3d]

Render the region with a gray color overide. This will give you a clue as to if it is material or lighting problem.

did a gray override and its definitely not a material problem. i'll try to recalculate the lighting solution. thanks.