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BlueApple
08-27-2009, 09:00 AM
I am trying to get a cattle brand looking really hot. Anyone have any techniques to share to make white hot metal? I've been messing with weight map driven gradients with some procedural texture, but all I seem to get is a lumpy bomb pop that glows on one end.

Any assistance is appreciated.

dandeentremont
08-27-2009, 12:15 PM
Can you post a render?

SplineGod
08-27-2009, 12:51 PM
Gradient in the color and luminosity channels

JeffrySG
08-27-2009, 01:03 PM
Gradient in the color and luminosity channels

:agree:

And I'd do the typical black body colors - dark red to a bright glowing orange / yellow...

http://www.flickr.com/photos/loupiote/26781866/

sandman300
08-27-2009, 01:04 PM
I agree with Splinegod, gradient and weight map.

BlueApple
08-27-2009, 04:28 PM
Attached is what I had come up with initially, using a weight map to drive luminousity and color. I was looking for a way to add some more detail, maybe by adding a procedural on top of everything to make the object less uniform. Note that the attached image has had Corona applied, and probably too much of it. The gradient also needs some massaging.

I think I'll hop into ZBrush and paint a displacement map instead of messing with procedurals as it'll give me more control.

Thanks again for all of the responses.

LW_Will
08-29-2009, 01:45 AM
I'd say add some procedural noise to the gradient and you'll be done.

Will

probiner
08-29-2009, 06:05 AM
I wouldnt let the hot metal go to white.
I fast photshoped your image and i out it more yellow, and a brown halo around.
Maybe some GI would acomplish that, and a bloom/corona. i dont know.
Cheers