View2 - Preview can store 2 views to be previewed. When user creates GroundWiz map, there will be 2 default view setups. To use your own preview, do the Grab.
If button View1 (View2) is pressed-in, preview will be constantly updated. Disable updating by unpressing View1 (View2).
Grab - Users should create their own previews by pressing Grab next to View1 (View2) button. Grab will capture snapshot of the currently selected 3ds Max viewport.
It will take a couple of seconds for operation to finish*. Press 'Escape' key to abort operation. For preview grab to succeed, there must be at least one object in the view that uses current GroundWiz map on one of its materials.
In preview, the object will be drawn as if it has Standard material applied and the Standard material uses GroundWiz in diffuseMap slot.
*Grab might take quite some time if scene, for example, is using advanced lighting like radiosity.
Zoom - Pressing Zoom works the same as clicking on the small preview image. It will open a separate window where the preview is displayed in a bigger resolution.
It is a standard 3ds Max bitmap window, so user can zoom with the middle mouse button, save image to a file and do all standard bitmap window operations.
Reset - Will destroy all user grabbed previews. Each user preview takes some space on disk (2.5MB or more if image maps are used on layers) when saved in max scene.
Sometimes saving previews in max scene might not be desired if you're trying to reduce the size of a max scene file.
Bump - When checked, preview will be a bit slower but preview update will consider current bump settings. This might be needed since bump also affects slope of the surface. However, when detail is not important, 'Bump' can be disabled and with many layers preview will be quite faster.
Mat. - When checked, material slot in the material editor will be correctly updated. This, however, will also slow down preview update. Unchecking this option might be very useful when working with many layers.
Draw Mode - Preview can display:
- Full Image: the whole layer tree is displayed. Each layer is displayed in its own color.
- Layer Isolated: only the currently selected layer is displayed in white color. The layer is only limited by its own distribution parameters. Parent layers and other layers covering the current layer are hidden.
- Layer In Tree: the currently selected layer is displayed in white and all others are in black. It might come handy when you need to inspect visibility of the current layer in the final image.
Layer In Tree