Modifying a converted polygonal mesh

By default the original brush stroke is linked to the new polygonal surface via construction history. If you modify the original brush stroke attributes, the polygonal surface will update so long as the construction history link exists. This construction history link allows you to easily modify the polygonal mesh surfaces in a variety of ways. You modify the brush stroke attributes using the attribute editor.

To modify the teapot brush attributes

  1. Marquee-select the polygonal teapot.
  2. To view the Attribute Editor, click the Show/Hide button on the Status Line.

    The Attribute Editor displays.

  3. In the Attribute Editor, click on the teapot1 tab to display the brush attributes for the teapot stroke. (You may need to click the display arrow (Windows, Mac OS X) or select the tab from the pop-up list (Linux) in order to see the tab.)

  4. In the Attribute Editor, expand the Mesh attributes section to display its attributes.
  5. In the Mesh attributes, drag the Tubes Sections slider to the left to a value of 3.

    The body, spout, and handle of the teapot update to display as 3 sided surfaces.

    Tube Sections defines the number of sides around the width of the tubes in a mesh stroke. Changing the Tubes Sections gives a range of results depending on the brush type you choose.

  6. Set the Tubes Sections to a value of 18.
  7. In the Attribute Editor, close the Mesh attributes, and then expand the Tubes attributes, then the Creation attributes.

    The Creation attributes control the main body of the teapot; the “trunk” or “stalk” of your paint effect mesh type.

  8. Scroll down to the Width Scale attributes.
  9. In the Width Scale attributes, drag an index point handle (as shown below) to change the profile shape of the teapot.

    The profile of the teapot body is modified.

    The Width Scale graph allows you to control the width of a tube by interpolating the shape between the index points. (If you look closely at the graph, you’ll see the profile of the teapot laying on its side.)

  10. Drag the index marker back to its original position.
  11. Close the Creation attribute section in the Attribute Editor, and open the Growth attributes, followed by the Leaves attributes.

  12. In the Leaves attributes, drag the sliders for the Leaves In Cluster, Leaf Length, Leaf Base Width, and Leaf Tip Width attributes to experiment with the spout of the teapot.

    If you want to adjust the attributes of the teapot handle, you can edit the Flower attributes.

Using this converted poly mesh is one example of how the attributes of the paint stroke can be modified to affect the shape of another object through construction history.

If you delete the paint stroke, the construction history between the stroke and the polygonal teapot will be removed. If you then want to make further changes to the teapot, you must use the Edit Polygon tools.

To render the polygonal mesh teapot

  1. Render the teapot by clicking the Render Current Frame button on the Status Line.