crossfading different bumpmaps on same shader

[augustus]

Hmm, cascading bump map nodes (you know, connect one's output to other one's normal camera) and then animating bump depths maybe?

[lazzhar]

I didnt try it yet but the guy in the bottom of this thread is talking about layring bump map using MR :
http://www.cgtalk.com/showthread.php?t=138025&page=3&pp=15&highlight=Mental+shader+research
I know you're not a big fan of MR but this is what I've found :rolleyes:

[devdoka]

Hello there !

Stahlberg,
are you using maya sotware render or mental ray?
(I`m thinking...) you can multiply your bump textures (or add them)
with a ramp,and pipe that to series of blend nodes, pipe the last blend node
to a luminance node then to a bump node.
In case you use an additive node,you need to use a set range utility.

In case of mental ray, francesca has made a nice bump node (bump combiner).
You can find it in highend3d shader section.

There might be an easier way (like what augustus suggested),
but i cant think of anything else right now.
(Hope I helped a bit)

P.S.
(Gotta hurry up.
Big game starts in 2 hours and i have invited a bunch of people
Yes i`m exited to see my team in finals :) )

[chrisJ]

I have a simple tut on this on my website. Its real easy. This may not be what u r talking about though.

chris

[Stahlberg]

(I'll be using MR, I've grown to prefer it now.)
Three different methods already, that's why I love this place, thanks! :)
But even though the one on JS' site says 'or download here for Mental Ray in Maya' when I open the Readme it seems to be an XSI shader?
I noticed Francesca's shader at Highend yesterday, but I didn't think it was exactly what I looked for... now I'll try it. And that tutorial seems to be useful, will try that too.

[kryoboy]

bump combiner all the way..

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