Changing object materials during animation

[ethernity13]

Hi there,

Maybe it sound stupid, but I would like to do the following without using a composit solution.
I got an object with a material X that I would like to smouthly change to material Y during an animation.

I took a look to ramp this stuff but I can't get hold of all material attributes.Same as creating a layer shader.

An idea?

Thanks in advance,

[stevesayer]

How different are the materials? Do they really need to be of different types... eg. Blinn changing to Anisotropic? This will be much easier to accomplish if you can stick to one material type. It would then simply be a matter of making all the incoming textures layered, and fading the alpha of the top layers from 0 to 1.

If you absolutely need it to be a different material type, the only solution I can think of is to have a duplicate object with the second shader, scaled a tiny bit smallerto prevent intersection. Then animate the transparency of the top object.

Good luck.

-Steve

[fomstudios]

Animating between material types (i.e. Blinn to Anisotropic) is actually quite easy. Create a Blinn shader. Create an Anisotropic shader. Create a Surface Shader. Create a Blend Colors node. Connect the Out Color of the Blinn to Color 1 of the Blend Colors node, the Out Color of the Anisotropic to Color 2 of the Blend Colors node, and the Output of the Blend Colors node to the Out Color of the Surface Shader. Apply the Surface Shader to your object. Set keys on the Blender attribute of the Blend Colors node to animate between shaders.

Cheers,
Eric

[stevesayer]

Whoops!

I was really off the mark there. Thanks, Eric.

-Steve

[ethernity13]

Thanks Eric I 'll give a shot...

[ethernity13]

Eric,

I just tried out, but following your way ,I come back just to animate the colour but not the transition of the other aspect of each material like :transparancy,roughness,ambiant and so on..
I wonder to swap gently in between 2 materials...

[daanbanaan]

just make a layered texture...
put the shader you want to see first on top..
set it to over in the layerd tex....
run the layerd into a surface shader...
apply the surface shader to object.
animate the alpha in the layered texture to fade it...

should work easy

[fomstudios]

You're welcome. All attributes of each shader (transparency, bump, specular, ambient, etc.) should be acquired by the Surface Shader. Make sure you connect the Out Color (NOT Color) of each shader to the Blend Colors node. Out Color is between Chromatic Abberation and Out Transparency in the Connection Editor list.

Cheers,
Eric

[xgc]

I've got a question, I made an eye material (Linear U ramp, mapped to a rotated 90

[warpcat]

just keyframe the "selected position" attr for the color entry you want to animate. I use to have to modify Alias files by hand to get this function, was SO excited when Maya could do it in the GUI...

[warpcat]

There's the "Layered Shader" node, that's use for... uh... blending shaders. Keep in mind the layered shader nodes comps the multiple shaders together by their own transparency. So to blend between two shaders, you need to animate the transparecy value of the top shader from black to white over time. Should work?

[ethernity13]

Great stuff,It worked out perfectly...

Thanks again