ZBrushCentral

What is the largest model you can export a map from

ZBrush Usage Questions
#1

Hey all,

I been generating displacement maps for my model subtools and found that I get a out of Memory error as soon as I hit the 14mill poly limet.

Now I wondered how is one to use the HD polys when I can not export 14 million polys? If my machine dies on 14 million how will I export 10 billion polys?

Here is my system spec because I don’t think its the system:
CPU: i7 3 GHz 8 virtual cores
Memory: 16 GB of DDR3 RAM
Vid Card: GeForce GTX 275
OS: Windows 7 Pro 64-bit

Should my system be unable to export a map at this quality?

#2

And why in the world would you want to export bilions of polys ?
Or even 14mil or more ?
Create a nice maps and export lower rez. mesh… im with older pc than you and i can export like 8mil (the last time idid this stupidity).
What do you need it for ? If you want to retopo a model in Topogun, let’s say, then Decimate your model and export it…

#3

I export models that are around 1-2k that I use the maps on so I am not exporting 14 million pollys. I work on 14 million polys for detail but never use them in the final product. What I am surprised is that zbrush can not make a normal/displacment map from my 14 million poly model.

O heavens no I do not use my 14 million poly in end production pipe line Oo heck I don’t more then 10% differences from a 500k model and a 2k model when the normal + displacement maps are on them.

I was just wondering why zbrush crashes at generating these maps.

I been thinking of getting topogun if you use it what do you think of it over useing zspheres in zbrush?

#4

I misunderstood, sry about that.
I dont see why your ZB crashes. Your machine is powerful enough.
Maybe it is a good idea to contact the ZB support, it might be a problem with your copy of ZB, i dont know.
Try creating maps at a lower level of the HDgeometry, and see if it crashes.

About Topogun - this is more advanced than ZB topology tools. More user frendly interface and has a lot of workflow functions and tools that make your life happyer! :+1: Give it a try!

#5

thanks for the reply I will give it a try :slight_smile: its pretty cheep when it comes to products so I will try the demo version and see if its something worth getting :wink:

I will contact support but not sure they will be of much help sense they can not seem to find a way to get my spotlight to work with out crashing I am starting to explore other areas to do texturing in.

#6

(this derails the thread a bit) Advantage to using topogun is that the points stick to the surface no matter what you do, whereas with the zsphere method the points can easily become embedded in the mesh (two points across a curve make a line that passes through the curve, if you then add a point to the middle of the line, the point is inside the mesh. In topogun, it’s projected onto the surface)

Advantage to using zspheres – sometimes you WANT the points to come off the mesh.