Export FBX from Mudbox

Before you start sculpting, export your Fbx from Mudbox.

Export an OpenEXR from Mudbox

Export a PTex from Mudbox

Import FBX and Add Subdiv Scheme

• Import the FBX you just exported from Mudbox.  For its shape node, add Attributes|RenderMan|Subdiv Scheme:

Assign Displacement Shader (UV Texture)

• Create a PxrTexture node. Set the Filename to your exported Muxbox EXR map. Keep all parameters at their defaults.
• Create  PxrDispTransform node. Set Displacement Type to Mudbox Vector and Vector Space to Tangent.
  
  

• Create a PxrDisplace node (this is the displacement shader that actually displaces your surface).
• Connect PxrTexture's output Result RGB to PxrDispTransform's Disp Vector.
• Connect PxrDispTransform's Result XYZ to PxrDisplace's Disp Vector. Your graph should look like this:

Assign Displacement Shader (PTex)

• Create a PxrPtexture node. Set the Filename to your exported Muxbox ptx map. Keep all parameters at their defaults.
• Create  PxrDispTransform node. Set Displacement Type to Mudbox Vector and Vector Space to World.

• Create a PxrDisplace node (this is the displacement shader that actually displaces your surface).
• Connect PxrTexture's output Result RGB to PxrDispTransform's Disp Vector.
• Connect PxrDispTransform's Result XYZ to PxrDisplace's Disp Vector. Your graph should look like this:

Render

• Add PxrSurface, assign it to the model and add some lights, set the displacement bound appropriately, and render!