OTOY Forums

hello
Slowly I am doing some tests with the materials.
Today I tried the rust but are not very happy although the two textures were not suitable
I have to find a book to learn!!!!any ideas?

render time 29min 50 sec
pathtracing-2664 steps
in PP I have removed some points on the wood.

resized from 2000 1080 to 1500 810

no filter against noise!

just find suitable rust image of screw from real life, take picture of top and side view...applay those as UV maps and you will have great result...
U can model it easily over image in blender
Mother nature is best teacher my friend so look at these screws rusted by coke

Keep it up and try tehnique from up and you will have great results !

Something is wrong: strange texture mapping / you forgot bump / the lighting is making everything flat...

I forgot the bump on the rust but not on the metal under the rust (maybe too light)

the light is flat because I wanted to simulate a photo taken in the studio
The first attempt gave me a slightly black background so I increased the scattered light and this has made ​​it very flat,

the two textures were;
one of a color similar to rust and the other was an old wall that I used to recreate the metal (reflective) under the rust
I did not want any reflection on the rust.

I'll try again when I find time

I hope soon

ok
I tried one more time
The first file is the same with a new two textures texture and a little more bump.
The second is new with two new textures and better lighting,, 17 minutes with direct light

second