Hey, I followed the vector displacment tutorial, and although the displacment looks great, i’m getting horrible uv seams. I’ve tried smoothing/not smoothing uvs, and not getting any love. I’ve heard PTEX is the answer, could someone give a clear tutorial on exporting ptex displacment maps to vray …

Sorry to bump this, but this could potentially be a bit of a deal breaker on the project im working on. I’m happy to use just normal displacment maps, as long as i can get rid of the uv seams. A good ptex tutorial would be a life saver :slight_smile: Edit: Got ptex working! When importing the obj,…

I didn’t work with ptex or with vectors before, and really never had success with either. For the displacement, you should just bake out a 32 bit rgb exr, which will contain the proper values for your displacement without the need to enter the offset or eyeball anything, you would just set the displ…

hey, ptex really is the answer :wink: vector displacement doesnt work just yet, but standard displacement with ptex does. just follow my tutorial here: http://blog.hellobard.com/2011/10/05/v-ray-ptex-normal-displacement/ fire away if you have any questions. remember to prepare your model with pte…

[image] Interior Training I’m happy to use just normal displacment maps, as long as i can get rid of the uv seams. Unforutnately for the moment they will always be there. It would be best to put them in a place where they won’t be visible. What I can’t get right now is the displacment level.…

[image] Rendu hey, ptex really is the answer :wink: vector displacement doesnt work just yet, but standard displacement with ptex does. just follow my tutorial here: http://blog.hellobard.com/2011/10/05/v-ray-ptex-normal-displacement/ Thanks for your link, much appreciated :slight_smile:

For PTex files, either use V-Ray normal 3d displacement or V-Ray subdivision surfaces. Smoothing must be done by the renderer so you can’t use the regular Maya mesh smoothing. But, normal displacment clamps between 0-1, so I can’t use the 32 bit displacments?

[image] Perspective(study/test render) But, normal displacment clamps between 0-1, so I can’t use the 32 bit displacments? thats why you have to use manual bounds in the displacement control.

thats why you have to use manual bounds in the displacement control. Just to confirm though, i would have to use displacments that are clamped between 0-1, eg 16bit?

Can anyone supply a very simple working maya scene file with ptex file, I just cant get this ptex working at all. I have followed the tut but to no avail. Thanks for any help. ok sorted, followed vlado’s tut which helped get the displacement result needed. [image] Chaos: Industry-leading …

Here is a great tip on UV seams and one fundamental concern to be aware of when dealing with Ptex [image] #texturing | polygonspixelsandpaint Posts tagged with #texturing

Mudbox -> Vray uv issues, ptex?

V-Ray V-Ray for Maya General

Morbid_Angel January 9, 2012, 11:42pm 8

thats why you have to use manual bounds in the displacement control.

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Mudbox -> Vray uv issues, ptex?

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