Autodesk 12812-051462-9011 User Guide 3 - Page 668

[mask map] To assign a mask map to the layer, click this button and then use the Material/Map Browser. The mask works the same as the Mask map on page 5925: Black areas are transparent; white areas are opaque; and gray areas allow degrees of transparency. So, for example, if the layer is to be a decal, the decal image area would be white and the rest of the image map would be black, so underlying layers can show through. After a mask map is assigned, the button image is a thumbnail of the map, and clicking it takes you to the parameters for the map. Hide the mask of this layer To turn off the mask temporarily, click this button. When a mask is hidden, the button looks like this: Color Correct This Mask Applies a Color Correction map on page 5933 to the mask map and opens the Color Correction map interface. You can use its controls to modify the map colors. To return to the Composite map interface, click the Material Editor toolbar. (Go To Parent) on After the Color Correction map is assigned, you can return to it from the Composite map interface by clicking this button again. [blend mode] Use the drop-down list to choose how the layer pixels interact with those in underlying layers. In the following descriptions, A refers to the current (front) layer and B refers to the result or output of underlying layers. NOTE Because Layer 1 has no underlying layers, its blend mode setting has no effect. ■ Normal Displays A without any blending. This is the default setting. ■ Average Adds A and B and then divides by 2. ■ Addition Adds each A and B pixel. ■ Subtract Subtracts A from B. ■ Darken Compares the values of A and B, and, for each pixel, uses the darker of the two. Compositor Maps | 5923