I don't have the same renders like you. I can see my renders using the original scene are greenish than yours. What is happening?. Bao2

When i render these on the hard surfaces test scene, my highlights are very speckly(sp?)IS this purely due to low glossy samples(8-default) and if so, what setting did you use on the shots above?

also is there an easier way to turn these up 'at final render' time for all, than going in one by one??

Maybe cause you awe us with your knowledge and expertise ?

I know I would not, so fast, make a material be worth, in my opinion, uploading, compared to the ones already available.

But yes: all you experts !
Get out of your whatever and share !!! and bring us more pleasant surprises ....

Giant thumbs up for this site !

Thanks for the updated .mats and the knowledge of this gamma shader. It's nice to be able to control the color depth per texture with this.

Regarding the uploading of mats, I too lack the skills to come up with something new to add. Once I do though i'll get in on here A.S.A.P.!

Have a look at the png map files using http://entropymine.com/jason/tweakpng/

it looks like the gamma is set at .4545 (the opposite of 2.2). I follow this site's B method of gamma correction. It appears that changing the gamma setting in the file to 2.2 fixes problem. Another way to fix it is to open the promaterial's bitmap map and on the bitmap selector diolog you can set a gamma override there saving you from adding the utility shader.

On a sidenote, if you to render to a png file for use in powerpoint you have to override the gamma in the render output file diolog box and set it to half of what your 3dsmax gamma setting is, so if your gamma is 2.2 you have to select override and set it to 1.1. Microsoft seams to think this isn't their fault-http://support.microsoft.com/kb/238559/en-us

Jeff,

I for one, have a mat library that's predominantly made up of your mats and a few others and I truly appreciate your efforts.

When and if I can come up with a decent material I'll gladly upload it.

All I can say is that you really are, apart from Zap, the only mental ray guru I know of.

Hope all is well with you mate!

Jeff, you need to know that i am very grateful for your work. I am in Architectural Visualization, and was tough to choose Vray or MR, and you help me a lot to choose Mental Ray. Now i can go without any fear. Thanks and keep up the good work. I will become a upload in no time!.

Thanks!

Hi Jeff,

Thanks for this post, It fixed the issues you desribed.
I have a quick question if you will..

with the pro mats, i'm getting a lot of sparkles and hot spots that look like caustics ( they are not ). Is this merely a case of dramatically increasing the samples? - I have it on 64 at the moment ( for hardwood semi-gloss ). final gather high and medium anti-aliasing, and it's very sparkly.


Thanks in advance, your always a big help

Joe

hi jeff,

i am just learning how to use MR for the first time, hopefully the correct way. since im teaching myself i figured it would be easier to use the great shaders you have available (they bring life to my clay renders, hah) in order to focus on lighting and rendering aspects (i feel those are most important) but i assure you once i understand the basics of lighting/rendering i will create my own miltia of materials that all can enjoy!