Hotspot Texturing is a new feature added to the toolkit that makes UV unwrapping easier and faster. When
you define UV layouts using the hotspot layout editor, UVs of each polygon can be placed according to the predefined layouts automatically.
We’ve recorded Getting Started Tutorial video. Click Here.
Hotspot Layout Editormade from the UV Editor framework.
A triangle layout as well as a rectangle is supported
Auto mode called
Auto Hotspotwhich enables UVs to be applied automatically every time a polygon is modified.
Paddingparameter to gives consistant gap between a hotspot layout and assigned UVs
Applies a selected hotspot layout to UVs by clicking on
Apply Selected Hotspotbutton.
Hotspot Layout tool¶
Hotspot Layout tool is for hotspot texturing. It is located in the
- 1.Select Only Visible
If on, only visible polygons can be selected in the scene view.
- 2.Auto Hotspot
If on, hotspot texturing is applied immediately to every polygon which is being edited at realtime.
- 3.Hotspot Group
If on, adjacent polygons are placed in one layout.
- 4.Hotspot Padding
If enabled, UVs are away by this pixel value from the layout
The ratio of the hotspot layout to the size of the polygon in the world.In case of 1, the size of 1.0 in the hotspot layout and 1.0 in the world is the same.In case of 2, 0.5 of the hotspot layout will be equal to the 1.0 size in the world.
For example, when the texture and hotspot layout are configured as above, and the world size is set to 1.0, 0.5, 0.25, 0.125, respectively, and a cube is created.
You can see the UVs are placed differently depending on the hotspot scale value. If the hotspot scale is 1, you can see that a 1.0-sized cube is placed in the UVs according to the 1.0-sized layout.
Since the 0.5-size cube is also 1/2 of 1.0 to fit the size, the UVs have been placed according to the 1/2-size layout in the hotspot layout editor.
If the hotspot scale is 2, a layout of 1/2 size is applied to a cube of 1.0 size, and accordingly, you can see that UV is placed on other sized models as well.
- 6.Hotspot Layout
Hotspot layout file. The format is .asset. This layout file can be applied to several objects.
- 7.New Hotspot Layout/Open Layout Editor
If a hotspot layout file isn’t set,
New Hotspot Layoutbutton is enabled so that you can create a new layout file. If a hotspot layout file is set,
UV Layout Editorwill be opened.
- 8.Apply Hotspot
If enabled, the hotspot texturing will be applied to the selected polygons. The selected polygons’ UV coordinates will be placed in the most appropriate layout.
- 9.Apply Selected Hotspot
If enabled, the selected polygons’ UV coordinates will be placed in the selected hotspot layout.
Hotspot Layout Editor¶
Defines layouts for hotspot texturing. The usage is somewhat similar to UV Editor.
Moves the selected layout polygon or UV
Resizes the selected layout polygon or UV using
- 3.UV Tool
Selects each UV and transform it using gizmos.
- 4.Polygon Tool
Selects each layout polygon and transform it using gizmos.
- 5.Texture Slot
Opens a texture displayed in the editor. This texture is just a guide.
- 6.Open Active Hotspot Layout
Opens a hotspot layout file of the current object.
- 7.Hotspot Layout Slot
Hotspot layout file (.asset).
- 8.Grid Snap
Grid snap size list.
- 9.Rectangle Tool
You can use this to make a rectangle layout.
- 10.Right Angled Triangle Tool
You can use this to make a right angled triangle layout.
- 11.Icosceles Angled Triangle Tool
You can use this to make an icosceles angled triangle layout.
- 12.Delete Tool
You can remove the selected layout. The shortcut is
- 13.Rotate Pos90 Tool
Rotates the selected layout by positive 90 degrees.
- 14.Rotate Neg90 Tool
Rotates the selected layout by negative 90 degrees.
- 15.Flip Horizontal Tool
Flips the selected layout horizontally.
- 16.Flip Vertical Tool
Flips the selected layout vertically.
How to Use¶
At first you should select a UModeler mesh or create it.
You should create a new Hotspot layout file by pressing
New Hotspot Layoutor open the existing layout file via
Now click on
Open Layout Editorto open the Layout Editor
Selects a texture via the texture slot at the top of the editor.
Now a guide texture is displayed. Then select
Rectangle Toolon the right and drag
LMBto create a rectangle layout.
Hotspot Layoutproperties toggle on
You can check out that UV coordinates are set automatically according to the predefined layouts in the Hotspot Layout Editor.
You can apply hotspot texturing to the selected adjacent textures as a group using
This is an example mesh.
Select the polygons as shown below.
Hotspot Groupand click on
You can see that the selected polygons’ UV coordinates are placed in one layout as shown below.
Apply Selected Hotspot¶
Apply Selected Hotspot assigns the selected polygons in the selected layout in
Hotspot Layout Editor.
Select a layout in which UV coordinates are placed in the
Hotspot Layout Editor
Apply Selected Hotspot
Now you can see that UVs of the selected polygons are set to the selected layout.