RGBImage BorderMode Displacement problem

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RGBImage BorderMode Displacement problem

Postby LLLOtoy » Tue May 11, 2021 11:33 am

LLLOtoy Tue May 11, 2021 11:33 am
hi there,

i`m having problems using a different mode than WrapAround when using displacement with an image texture...?
it works when using the same texture as bump. how can i prevent the image from tiling?



many thanks for any hint!!

jn
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Re: RGBImage BorderMode Displacement problem

Postby juanjgon » Tue May 11, 2021 8:39 pm

juanjgon Tue May 11, 2021 8:39 pm
Sorry, I'm not sure to understand the problem. Can you please share a scene as simple as possible with this issue?

Thanks,
-Juanjo
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Re: RGBImage BorderMode Displacement problem

Postby LLLOtoy » Wed May 12, 2021 5:08 pm

LLLOtoy Wed May 12, 2021 5:08 pm
Sorry, should`ve postet an example...

in the attatched file//image i use a bitmap to displace a grid.. i also use transform 2d to scale the map down.. but to avoid tiling, i use "Border Mode" -> "black color" on the TextureImage Node..
this works only if i use the map as Bump, but not as Displacement Map...

hope this explains it better ... 8)

many thanks Juanjgon!!!!
Attachments
Displacement_MapTiles.zip
(61.6 KiB) Downloaded 98 times
Displacement_MapTiles.jpg
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Re: RGBImage BorderMode Displacement problem

Postby juanjgon » Thu May 13, 2021 8:59 pm

juanjgon Thu May 13, 2021 8:59 pm
The conventional displacement has a lot of limitations, and probably this is one of them. It only works fine over fully UV mapped objects. The new vertex displacement node probably doesn't have this limitation, have you tried it?

Thanks,
-Juanjo
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Re: RGBImage BorderMode Displacement problem

Postby LLLOtoy » Fri May 14, 2021 1:21 pm

LLLOtoy Fri May 14, 2021 1:21 pm
Hi Juanjo,

yes you`re right... the vertex displacer does the job!
Should have thought of this in the first place! :roll:


many thanks
jn
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