stainless specular values

Hello Everyone,

I an architect and am doing a glare analysis and need to accurately simulate different finishes of stainless steel as options.
I am currently using the following material definition to simulate Stainless Steel w #4 Finish:

# material name:STAINLESS_4
# material type: reflective
# comment: stainless_4
# author: az
void metal stainless_4
0
0
5 0.8 0.8 0.8 0.9 .125

Im looking to simulate the following types of metal using the the appropriate different specular and roughness values, but don't have any way to accurately test the materials my self
I have had a very hard time finding this information, and do not have the equipment to measure actual samples.

1) Stainless Steel Polished
2) Stainless Steel #4 finish
3) Stainless Steel Sandblasted
4) Zinc

Does anyone have any thoughts what the reflectance/roughness values for these type of materials and finishes may be? Thanks so much for any help

Best,
-Aaron

Hi Aaron,

Peter has a database of measured materials with fitted radiance models:
http://www.pab.eu/gonio-photometer/demodata/bme/
I don't see stainless steel or zinc in that database.

I think probably the best thing to do, especially when you're trying to
distinguish between surface finishes, is to send your samples to a lab for
measurement.

Andy

ยทยทยท

On Mon, May 11, 2015 at 8:06 AM, Aaron Zeligs <[email protected]> wrote:

Hello Everyone,

I an architect and am doing a glare analysis and need to accurately
simulate different finishes of stainless steel as options.
I am currently using the following material definition to simulate
Stainless Steel w #4 Finish:

# material name:STAINLESS_4
# material type: reflective
# comment: stainless_4
# author: az
void metal stainless_4
0
0
5 0.8 0.8 0.8 0.9 .125

Im looking to simulate the following types of metal using the the
appropriate different specular and roughness values, but don't have any way
to accurately test the materials my self
I have had a very hard time finding this information, and do not have the
equipment to measure actual samples.

1) Stainless Steel Polished
2) Stainless Steel #4 finish
3) Stainless Steel Sandblasted
4) Zinc

Does anyone have any thoughts what the reflectance/roughness values for
these type of materials and finishes may be? Thanks so much for any help

Best,
-Aaron

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