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Importing the CAD Data

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Lighting

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  • Go to lights in the Create tab (Command Panel) and choose Arnold from the menu. Select Arnold Light (quad_light by default) and click in the viewport to create it. Position, orient and scale it so that it is slightly larger than the car as in the image below.

Scene lit with quad_light (exposure: 16)

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Realistic Shading using Standard Surface

Scene Converter

We will use the Scene Converter (Rendering -> Scene Converter...) to convert the in-built Physical materials to Arnold standard_surface shaders.

  • Under Current Preset, choose Arnold.
  • Under Materials (Conversion rules), choose Physical Material to Arnold Standard Surface [No Displacement].
  • Select Convert Scene. It should then proceed to convert the materials.
  • Once it has completed, go to the Slate Material Editor window. You should see that all of the Scene Materials are now Standard Surface.

Standard Surface 

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Lego plastic shader settings

Round Corners 

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round_corners -> standard_surface.normal

 Clip Geo shader

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To avoid clipping the floor plane:

  1. Add an Arnold Properties modifier to the plane.
  2. Create a trace set for the plane by entering a name in the shader Trace Sets text box (for example, "objects_not_to_clip").
  3. Disable the Inclusive checkbox of the clip_geo shader.
  4. Put the objects in that trace set (by entering the same trace set name for those shapes: "objects_not_to_clip").
  5. All objects not in that trace set will be clipped (the car model).

Cube with clip_geo assigned to it. The plane is not clipped because it has a Trace Set (Arnold Properties modifier) that matches the clip_geo Trace Set. Inclusive is disabled.

Stylized Shading using Toon 

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To change the background color go to Environment and Effects (8) -> Background: Color:

toon -> Map to Material (assigned to geometry) with toon shader parameters

Final Render Settings

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That's it. You have reached the end of the tutorial. Well done! We encourage you to spend some more time with the MAXtoA user guide where you can find other tutorials such as this. 

 

 

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