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Tutorial:ZBrush displacement maps in 3dsmax, metal ray

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#101

Uncommon artist

actually i had a little fun with the render stuff
although i’m so new to zbrush and i can’t get that thing to work

i did a test with the vray & max to zbrush
but didn’t include a texture >>>not in max or zbrush

model in max
export to zbrush …sculpt >>>> bla bla bla …but get a map out of zbrush

now back to max … i didn’t bring anything but the map
tried it in bump and displacement slots … results are things u don’t wanna here about

so , render system … Vray
and put a vray displacement MODIFIER on the mesh
and things start to work !!!
but that was a very very primitive experiment … and i think that the light position and camera position give different results !!!

ok , don’t mind all that … i’m just a guy who try to figure out how this thing works !

#102

Hi,

I created a model in max8 sp3 and unwrapped it in max (no overlapping). Did the detailing in in zbrush and now i am trying to export the displacement to use in max. But unfortunately i am having some problems with doing it.

My 32bit displacement map which i exported using the quick code has this streak that goes across my tiff file as you can see below. As i am a noob to zbrush i have no idea what to do and pretty much lost. I understand that it might be a vertex gone astray but when i look at the mesh with the details that i have created. it looks fine. So i have no idea where the streak is coming from …?

Can somebody please enlighten me on how to solve this problem, as i have spent alot of time doing the displacement

displacement problem.jpg

#103

Encoded: that happens to me all the time, one of your UVW verts got zero’d out. Either reimport your mesh on it’s lowest level or export the lowest level and fix the uvw error.

#104

Hey guys,
I followed the guides that people posted here a lot of times and even tried to make one of my own but none worked for me. PLEASE help.

I made this mushroom in Zbrush, (started from a very low res sphere and going up to 8th subdivision level), and made a displacement map by going to texture>new>height/width 2048>went into the lowest sub level and in the displacement menu I picked adaptive, smoothuv, dpres 2048, and create dismap.

I then exported sub level 4 as OBJ, imported to max, converted to editable poly, checked smoothing iteration 2 (any higher and max crushes when i render), created a texture with 50 dis map, V -1 and output from -1 to 1, switched to mental ray renderer, made it edge length 0.5, max displace 20, max subdiv 16k, and smoothing on.

This is what I get in max (a simple smoothed version of the imported model without any extra details from the displacement)

PLEASE help me. What am I doing wrong?

THANKS in advance.

#105

I’m trying to use multi displacement 2 to export my displacement map (just installed it)- however the button is greyed out and there is a questionmark sign. Did I install it wrong or did I miss something?

#106

Hi yuriythebest
I think is the setting of the plug that is not ok.
I post the setting i use, coming from the pdf guide of the plug.
Important is the Quick code hilighted in the pic, also this is from the guide.
The window on the right side i think is about the strenght of the map, i leave this in the middle and i will experiment different settings…

Hope this can help! disp_set.JPG

#107

I still get he same thing:

#108

Hi
seems that something is going wrong in the plug.

Try and reinstall the plug, probably is this the issue…

#109

yeah, turns out I also had to put the *.psd files in the plugin folder, that just fixed the interface and not the problem, though I was finally able figure out how to export using the good ole method.


The Cheshire Cat - in the create displacement map of zbrush try this: uncheck adaptive and set DSubPix =2; move the displacement intensity to ~70%, select smoothUV. Do everything else same as before and play around with the displacement amount in MR. Hope that improved your result somewhat.

#110

Thnx for this " veryfound " small and easy tutorial “CvH” but wanna ask u 2 thing bout ur setting !!!

  1. What has to be the strength of the “Displacement map” Defaut is 100 , like its 30 for the bump slot. What is ur setting for the disp box ???

  2. I dunno which version u used but the small option in "render setting dialogue box / renderer / Displacement global setting / I did the edge length to .5 its O>K , but in ur screen grabs there an option saying “Max level 6” but mine is saying max Subdiv -16k and theres so many choices, what should I use among them ???

Thnx in advance !!!

#111

Hello! I i need help: i do all like in tutorial on the first page and when i try displacement on the test head - all ok.
But!
This i have in zbrush, after aplying displacement on model
armor_brush.jpg

what is wrong?

Attachments

armor_max.jpg

#112

I’m on max 9, and I am in the same spot of trying to figure out the setting for max subd instead of the max level. I can tell you that it WAS NOT the option of ‘64’ :wink: as after about half an hour of rendering nothing, Max
crashed.

I will start going through each of these and see what we can come up with so others can have the correct option for version 9. Hopefully that change from ‘level’ to ‘subd’ does not have an effect on other settings. I can only handle one variable here :wink:

Will report back!

#113

I’m now thinking the ‘max displace’ needs to be different from CVH’s original post (in which it is 20.0) in addition to the ‘max subdiv’ being a different number than the ‘max level’ since we’re now dealing with Max 9.

If I put in ‘20.0’ for the max displace, the model is blown out - i.e. EXTREMELY over-displaced. I’ve moved it over a decimal place to 2.0, which is much closer to the shape the model should be/ not so much inflation occurs.

However, I am now seeing an interesting problem. It is only displaced negatively and is very deep. Plus, there is little to no detail in the render other than these deep gashes. I’ve changed the output range in the material from -1 to 1 as originally posted. It is interesting that I’m having this prob if Max by default only displaces positively.

My current MR global settings:

View: Checked
Smoothing: Checked
Edge Length: 0.5
Max Displace: 2
Max Subdiv: I’ve tried 4, 16, and 64 all to similar result as described above. Will continue testing this option.

BTW, I am using ZB 2. Yeah yeah, I know. Don’t feel like trying to figure out the zmapper ‘workaround’ people claim is an issue.

I apologize if the answer to this is obvious and/or is covered elsewhere; I’ve been reading many threads on this topic and have not seen it yet.

#114

Hey everyone!

Ok, so I’ve tried this over and over. It just doesn’t want to work for me, for some reason… maybe my computer hates me or something.

Anyways, I’ve made this model from scratch in Zbrush, here’s a little pic of it:

I’ve done the UVtile inside of Zbrush, I’ve done the UVcheck (came out with no errors). I’ve exported the displacement map from the MD2 with the following code: DE-LBEK-EAEAEA-R32

I export my model at the lowest subdiv-level into 3dsmax, make it an editable poly and put a turbosmooth on it. I assign MR as renderer.

I then assign my displacement map from the mental ray Connection dropdown. Just as I should do.

My values are following:

Edge Length: 0,5
Max.Displacement: 2,2
Extrusion Strength: 2,2
RGB Offset: -0,5

I’ve tried with both the tif version (RGB, 32bit) and the *.exr version. I’ve played around with the output curve and set it to -1 to 1 and -0,5 to 0,5. No change.

This is the result:

So yeah, Im stuck. I’ve read this thread over and over and rechecked every single value I can change… still no luck. Im out of ideas, so I hope someone around here might have clue what Im doing wrong.

Anyways, thank you

// Whakka