Autodesk 12812-051462-9011 User Guide 3 - Page 784

TIP To render vertex colors, you must apply a material that has a Vertex Color map on page 5943 in its diffuse component. To view vertex colors in viewports, right-click the object, choose Object Properties on page 305 from the quad menu, and then turn on Vertex Channel Display in the Display Properties group and make sure the drop-down option is set to Vertex Color. The Assign Vertex Colors utility supports light inclusion or exclusion when using the Scene Lights option. All of the commands found within the Assign Vertex Color utility are also available from the Modify panel when a VertexPaint modifier has been applied to an object. Vertex Colors and Radiosity The Vertex Colors utility supports radiosity on page 6168. If you use radiosity with assigned vertex colors, be sure to turn on the option Re-Use Direct Illumination From Radiosity Solution. This option is in the Rendering Parameters rollout. See Radiosity Controls on page 6188. When this option is on, the renderer simply displays the vertex colors assigned by the radiosity solution: strictly speaking, it is not rendering at all. The additional option Render Direct Illumination, also on the Rendering Parameters rollout, causes direct lighting not to be saved in the corresponding mesh. This corresponds to the options Radiosity, Render Direct Illumination, in which case Assign Vertex Colors gets indirect illumination from the radiosity mesh but renders direct illumination separately; or Radiosity, Indirect Illumination Only, in which case Assign Vertex Colors doesn't apply direct illumination to vertices at all. See also: ■ VertexPaint Modifier on page 1959 ■ Vertex Color Map on page 5943 Procedures To use the Assign Vertex Colors utility: 1 Assign materials to the objects you want to affect. These can be mapped or unmapped materials. 2 Light the objects. Assign Vertex Colors Utility | 6039