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Material Functions

Overview

Material Function is the last group in the script. It includes 16 different functions for material handling.

Material Function group.

These functions are:

  • Apply Material (1): apply current material in material slot to selection.
  • Material Replace (2): replace two material. Watch this video to understand how this button works. Right-click to replaces the material of the currently selected object with the material in the Auto Material slot.
  • Pick Material to Apply (3): apply picked material to selected object. Hold shift to copy UVW Map modifier if available.
  • Select Similar (4): select all object with same material as the selected.
  • Detach by Material (5): auto detach all faces in object by material.
  • Remove Material (6): remove material of selection.
  • Checker Material (7): assign checker material to selection. Right-click to restore orginal material.
  • Material to Editor (8): add current material in material slot to 3ds Max Material Editor.
  • Real-world Scale (9): scale the UV of the object according to the actual real-world scale.
  • Auto Unwrap (10), UVW by Polygon (11) and UVW by Object (12): automatically process the UV of the object.
  • Offset UV (13), Flip UV (14), Rotate UV (15), Scale UV (16): edit the current UV of the object.

Auto UV

All Auto-UV features in the script, including Auto Unwrap (10), UVW by Polygon (11) and UVW by Object (12) is designed to automatically align the UVs of the faces according to the length of the texture. Each method has its own advantages and disadvantages. Therefore, you should clearly understand how they work to apply them properly.

Auto Unwrap (10) will add the Unwrap modifier to the currently selected objects, then automatically align the UV islands. This feature can handle large polygons without causing 3ds Max to crash. The downside is that it doesn’t work well in some 3ds Max versions (2022.1 and earlier). You should install the Unwrap Pro plugin if you want it to work most effectively.

  • Click: flatten unwrap and break all edge.
  • Ctrl + Click: flatten unwrap by smooth group.
  • Shift + Click: flatten unwrap by 45 degree threshold.
  • Right Click: re-align UV islands.

UVW by Polygon (11) has similar features to Auto Unwrap (10). Not so fast but very accurate. It will find the longest edge of each polygon and add a UVW Map aligned to that edge. Press ESC during process to abort.

UVW by Object (12) is fast but not very accurate. It will calculate the size of the currently selected object, and add a UVW Map aligned to the longest dimension. Work best when you have detached all panels into separate objects. Press ESC during process to abort.

UVW by Polygon vs UVW by Object.

Note that you should not Chamfer the object before using the Auto UV feature, because it can cause the UV time to increase greatly or even cause 3ds Max to crash.

UVW by Polygon before and after chamfer.

Edit UV

The Edit UV group includes 4 functions: offset, flip, rotate and scale.

Offset UV (13) will add a UVW Xform to the currently selected object, and align its UV. If the currently selected object has been UVed with Auto Unwrap, it will offset the UV islands, and produce better results.

  • Click: random offset both U and V tile.
  • Ctrl + Click: random offset only U tile.
  • Shift + Click: random offset only V tile.
  • Right-click: reset offset value.

Flip UV (14) will add a UVW Xform to the currently selected object, and align its UV.

  • Click: flip both U and V tile.
  • Ctrl + Click: flip only U tile.
  • Shift + Click: flip only V tile.
  • Right-click: reset flip state.

Rotate UV (15) will add a UVW Xform to the currently selected object, and align its UV.

  • Click: enter rotate value.
  • Ctrl + Click: rotate 45 degree.
  • Shift + Click: rotate 90 degree.
  • Alt + Click: rotate last entered.
  • Right-click: reset rotate value.

Scale UV (16) will add a UVW Xform to the currently selected object, and align its UV.

  • Click: enter scale value.
  • Ctrl + Click: tile -0.1 (bigger).
  • Shift + Click: tile +0.1 (smaller).
  • Right-click: reset scale value.

Note that in the object’s subobject level, if there are polygons currently selected, these UV Edit features above will only affect that polygons. If you want it to apply to the entire object, deselect all Polygons.

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