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Sculpting Tools

mudbox_donut
       Change a torus into a fresh baked frosted chocolate donut.


Select the Modeling section of Maya, choose from upper left.
modeling_module

Choose Create->Polygon Primitives->Torus->option  
     Input Subdivisions Axis 40
     Input Subdivisions Height 40



Poly Sculpting Tool
Mesh Tools->Sculpting Tool ->Sculpt Tool->option
  
(These tools only work on polygons.)
     Input Size: 0.2
     Input Strength: 0.1
Hold left mouse key and drag over the Torus to sculpt.


Check Invert under the Sculpt tool to push the points.

To easily access the sculpting tools, Click on the Sculpting tab on the shelf.
To open up sculpting tool settings, double click a Sculpting Tool on the Sculpting shelf.

Experiment with other sculpting tools.



Textures as Brushes
To sculpt with image textures:
In Tool Settings, under Stamp, check Use Stamp.
Click on Import next to the blank texture square.

On mac, go to:
/Applications/Autodesk/maya2020/Maya.app/Contents/Examples/Modeling/Sculpting_Stamps

On PC, go to:
C:\Program Files\Autodesk\Maya2020\Examples\Modeling\Sculpting_Stamps

Select any .tif texture. Hit Open
Click on Pick Stamp next to the texture, you should see all the other stamps available to use in the Content Browser.

Now when you use the sculpt tool, it should be textured.
You can also use Stamp with other Sculpting tools to add textures to your model.



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Sculpt Geometry Tool  NURBS or POLY
Go to the Modeling Section, this is similar to the Sculpting tools, but also works on NURBS.

Surfaces->Sculpt Geometry Tool->option
 


Displacement Maps with the Sculpt Geometry Tool
Add a shape with a lot of extra geometry (CVs or vertices).

Choose Surfaces->Sculpt Geometry Tool->option 
This works with Poly or NURBS

Choose the Attribute Maps section

Under Import, Click the Import... button
     Choose an image

Look at your geometry, the image distorted it.

Go back to the first Sculpt tab, notice your shape was distorted by the max displacement and push or pull.

Try painting a distortion with one of the brushes, you may need to change the radius.



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3D Paint a Texture Map Poly or NURBS

Image Texture Map
Select the Torus Donut.

Use the right mouse key over donut to bring up the marking menu, select Assign Favorite Material->Lambert.

Under the Attribute Editor, on the right side of the screen  attribute_editor   (Or Ctrl a)
    
Find the new Lambert
Shader tab.

Click the Map Button across from Color map_button.jpg
     Select the File icon texture_file_icon_create_render

File->Save
your scene into your Unity Assets folder

Hit 6 on the keyboard to see the model shaded with texture.
(You do not have a texture yet.)


Select the Rendering section of Maya,  choose from upper left.
render_module

Select your Poly (or NURBS) model

Use Texturing->3D Paint Tool->option 
     Select Assign/Edit Textures button
          Select a resolution such as 1024 x 1024"
          Select Image Format:  Tiff (tif)
Start Painting, select colors, change the size of the brush.

File->Save your scene into your Unity Assets folder



Relocate the Texture map
** The texture will be assigned to a folder in your project. You will need to get this file and place it where you need it, either in your Unity Assets or your Maya Scenes directory.

This is where the file is initially placed:
\maya\projects\default\sourceimages\3dPaintTextures\...

Relocate the map. You may paint it in Photoshop.


hypershade Windows->Rendering Editors->Hypershade
Go to the Textures tab
     Double click the texturemap to view it in the Attribute Editor
     Click the folder icon and locate your relocated texture map  folder
          Change Filter Type to Off (less blurry, default Quadratic)
          Under Arnold
               Change Filter Type to closest   (less blurry, default smart_bicubic)

Hit 6 (shader display) to view the texture shaded on the model.



Make a Shiny Material in Unity
Select Assets->Create->Material.
     Try Shader    Standard (specular setup)
          Change the Specular color

Drag the map from Assets onto the Albedo square in the Inspector.

Drag and drop a material onto your model



Fix the Map for Unity
Select the Map in your Assets/Materials
folder
     Change the Filter Mode to Point (no filter)   (default Bilinear)
     Hit Apply



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