Trying to get specific client requested RAL colour in render

[tom182]

Hi,
I have hit a bit of a brick wall at the moment. Maybe someone that knows LWF and the colour correct plug can help out. I am trying to get a specific colur (RAL 5015- Sky Blue) to appear correctly in my renders, it is used on frames for an exterior scene. I did read in one of the topics here that using LWF and colur correct plugin is the way to go in achieving accurate colurs, So I setup for LWF, installed the colour correct plugin and am doing some renders, Question: do I set the gamma value in rgb spaceto 2.2 (leaving it at the default value gives a very washed out colour, am using the VFB) and question2, How accurate can the colous be? considering environment and sun light colour?

Thanks

Tom

[Resolution01]

There is a material library on http://www.vray-materials.de/
with all the RAL Colours in. Downlaod it is will make your life so much easier.

Cheers
Renato

[tom182]

ok I will do that but my questions still apply,

thanks,
Tom

[SteveC]

Hi Tom,

You can try here http://www.easyrgb.com/reference.php
I've used this quiet a few times, very usefull. Select the colour
collection at the top, then enter your colour number, RAL is about
3/4 of the way down.

steve

[studioDIM]

Great site Steve, Bookmarked!
Rhat's really nice is that it's a breeze to turn those decimal 8bit values (rgb 37.50 61.88 50.54) into vrayColorMap float values, for utter precision (easy enough to divide them by 255 to normalise to 1).

Only problem i have had in the past is that no matter how you put it, to match properly, you have to light with white light, or bear the weight of hue change when using coloured lights (like sun and sky, for instance).
Make sure your client understands this, or else cater for the worst-case scenario

Lele

[SteveC]

Hi Lele,

what i did notice on the site is that once you've selected your colour, if
you select the calculator button to the right of the colour, it comes up
with a colour calculator where you can set the light conditions of for the
observer as well as convert the colour info in to othe formats, sRGB,
RGB hex, CMY and so on.

I've not looked in the the calculator a great deal so i dont know how
usefull it may or may not be.

steve

[glyph]

taken to the logical conclusion the render should be something like flat gouraud shading with no GI or colour bounce on the ral elements!
but I can see those links coming in handy