Hello i am make 3d model carving for mashining cutting. Below some imagase for example.
And now i must make frieze like this
But my model is flat. Can i bend my hi-poly model in zbrush? If this impossible how i can make this other way? I can’t make retopology and export simple model with normal maps because i need precisely hi-poly model for *.stl export.
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I believe that Projection Master could be helpful in this situation.
No i mean something like this http://www.youtube.com/watch?v=5WNNsJRot-Y&feature=related Project tool can’t flow object to surface by surface normal, only perpendicular to screen plane
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Match maker is a strong candidate. You could also make the detail part of an IMM brush, and increase the Projection Strength brush modifier to have it project to the underlying surface as you draw it on.
Another possibility is to use Transpose. Get a good side view of the mesh going, draw a vertical action line (move mode), and with the center dot positioned where the bend is, hold alt and move it to create the warp.
Yes i watched the video that you mentioned in that post. But with projection master this is the best thing what i can make
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I think you could do this by using the ‘Apply DispMap’ button in the Tool>Displacement Map menu.
Basically it would work like this:
You create a new document of the same proportions as your pattern model. You will need to make it large enough to capture the detail. Approximately speaking, the number of pixels must equal the number of polygons on the front face.
Position the model so that it fills the canvas precisely.
Press Alpha>Transfer>GrabDoc. This will capture a depth map of your model. Note down the value in the Alpha>Transfer>Alpha Depth Factor slider and the width of the Document (from the Document:Width slider), you will need this later.
Now you need to assign UVs to lowest level of the curved shape that you want to take the pattern. It is important that the UVs are planar and are only the front facing polygons. You need the rectangle to be the same proportions as the pattern.
With the curved shape selected, subdivide until the front face has enough polygons to support the new detail.
Press Tool>Texture Map>New Txtr. It doesn’t matter what color this is, it’s just needed for the next steps.
In the Tool>Displacement Map menu, click on the map thumbnail and select the depth grab you made at (3).
Now set the Displacement Map>Intensity slider to the value you get from (Alpha Depth Factor /512)*(1024/Document>Width). [ADF divided by 512, multiplied by 1024 divided by Document>Width.]
Now press Tool>Displacement Map>Apply DispMap.
The image shows a ‘proof of concept’.
HTH,
Thank you for you explicit instruction. The third image from my first topic i making like adviced you. But i hope there may be a more accurate method of working of the original geometry?
About Projection Master i was written. Projection master is only perpendicular to screen projection. I can’t projection to normal surfaces or if shape of surfaces will be more curve.
Done with the method I outlined.
You know i am a CAD user a long time, I used to catch millimeters, and biases. This is some works maked in SolidWorks, for example. And freedom of zbrush sometimes scares me :)) Thanks for your help, your advice was most helpful after in the fifth paragraph is all new to me.
