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dsw98
2009-06-04, 10:21 PM
so i have a pic i'm using for a texture. (see attached) yet when I render it, it's showing up kind of gray and not the color of the pic. Is there anyway to adjust the color once it's inside revit?

Gadget Man
2009-06-05, 08:56 AM
There is a setup for brightness and you want to make it really much darker than it appears, for Revit to render it closer to what you want. Just play with this setup and see what it does for you.

dsw98
2009-06-08, 05:08 PM
There is a setup for brightness and you want to make it really much darker than it appears, for Revit to render it closer to what you want. Just play with this setup and see what it does for you.

ya that doesn't help me. It just makes the rendering look darker, I need to add some red-ness to it. Is there any way to do that?

sbrown
2009-06-08, 05:30 PM
Thats actually the saturation control that would add the color back into the rendering. I usually set mine to 1.2 I also change the color temp. setting to 7000. Also are you using a bump map?

dsw98
2009-06-08, 06:00 PM
Thats actually the saturation control that would add the color back into the rendering. I usually set mine to 1.2 I also change the color temp. setting to 7000. Also are you using a bump map?


The only place I can find in the settings to adjust the color temp is under "Self illumination" Which I don't think is right, cause I changed that color temp to 7000 and it didn't really make a difference. I don't have anything for the bump map at all. I've tried using the same "texture" pic but it also didn't seem to make a difference.

sbrown
2009-06-08, 08:18 PM
These are the rendering settings from the rendering dialog box. Not material specific.

dsw98
2009-06-08, 08:27 PM
These are the rendering settings from the rendering dialog box. Not material specific.


Oh okay, I found that and will play with the settings. I've tried playing with the bump settings, but can't really see a difference. But i'm just using the same .jpg file. Should I be using something else?

cliff collins
2009-06-08, 08:43 PM
I think what Scott is driving at is if the stone material has a "bump map"--usually
a greyscale .png--associated with it, that could affect the color, depending on how "strong" the bump is. ( i.e. displacement )

The Render Settings adjustments have a HUGE affect on overall lighting, color, saturation,
etc. Even very, very subtle adjustments will have a profound impact.

We usually render with default settings, then "post-tune" the rendering, then export the image. ( which I know to some purists is a no-no. ) But we can get the desired results
very quickly this way, and then set the exposures back to default.

As in all rendering packages, Mental Ray lighting drastically affects the scene. For example, just because you match your material's RGB perfectly to a sample, doesn't mean it will render perfectly to match that RGB.
The exposure settings are extremely sensitive and powerful. Learning
how an analog camera uses light, as Scott mentioned in another thread, is a great way to begin understanding how Mental Ray works, and how to compensate to get the result you are after.

cheers............