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Combining a flipbook function with a world aligned texture?

Hi there, I am trying to create a stylized rain splash effect by creating a material function that I can place into the materials I want. I want to be able to use an animated flipbook texture but tiled across assets using world space. I tried linking up the flipbook and world aligned texture nodes but world aligned node requires a texture object instead of a vector 3, I was wondering if there was a way around this so I can achieve the effect I want or perhaps a different way of doing things?

Thank you very much. :)

Product Version: UE 4.9
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asked Mar 02 '16 at 11:22 AM in Rendering

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avatar image JBroderick Mar 02 '16 at 03:43 PM

Just to hopefully clarify what I'm after: Basically I'm trying to create an animated material that can be projected in world space on objects, setting it up in world space is fine or having it animate using flipbook but I can't seem to marry them together so the world space texture maps the uvs from the current flipbook frame. If that makes any sense. :P


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avatar image JBroderick Mar 02 '16 at 06:28 PM

Currently I have this setup which uses world position as an input for the flipbook UVs which aligns to the environment correctly and animates the texture, the problem is that the entirety of the flipbook texture is projected across the world rather than one specific frame. I have tried some different arrangements to try and get the UVs to work together but nothing seems to take the flipbook UVs into account.


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Hmm.. Could you perhaps make an example of what you want? some visual guidance? Because I have a hard time visualizing what you exactly want to achieve.

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answered Mar 02 '16 at 11:40 AM

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avatar image JBroderick May 16 '16 at 04:17 PM

Thanks Luos, I forgot to come back to this. I ended up using a different approach in the end using flipbook rain drop particles conforming to a Z axis and just placed them around the level. It gave me a much better looking result in the end.

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