RE:Map is a set of 5 plugins: RE:Map UV takes a UV Map, probably rendered from a 3D system, and renders an image using this mapping. Easily clean up texture maps and remap in post without having to go back to your 3D system for re-rendering.

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Texture mapping properties manage texture map projections for selected surfaces, polysurfaces, and meshes.

Mapping is a process of defining how to represent a 2‑D image on a 3‑D model. Mapping transforms a 2‑D source image into an image buffer called a texture.

A texture can be applied to the surface of a 3‑D model to add color, texture, or other surface detail like glossiness, reflectivity, or transparency.

The problem of how to represent the texture in 3-D rendering can be overcome by means of uv‑mapping. U and V are the coordinates of the texture corresponding to X and Y. Think of u as one direction on a piece of graph paper (side to side). Think of v as the other direction (up and down).

Any time an image is applied in a material and then applied that material to a model, uv‑texture mapping is used.

Mapping channel

A mapping channel holds a set of texture-mapping parameters. Each mapping channel is identified by a number. An object can have any number of channels and therefore can hold any number of texture mapping types.

Textures in materials can be assigned a channel number. When the textures are applied to an object, the texture is applied using the matching channel number on the object. Texture channels default to channel 1.

If an object has no applied texture mapping, surface mapping is used to map the texture.

Options

Default

The default texture mapping method for surfaces and polysurfaces is set by the control point structure of the surfaces and is called surface mapping.

Custom

The Custom option allows any other texture mapping method.

Name

The name of the mapping.

The mapping type.

Surface

Surface mapping stretches the texture over the object.

In this example, a variable radius fillet connects two planar surfaces and all are joined into one polysurface. The default surface mapping method uses the control point structure of each individual surface to orient the checkered texture map applied to the material. Notice how the checker texture does not match across seams in the polysurface.

See: ApplySurfaceMapping.

Planar

Planar mapping projects a 2-D plane onto the side of an object.

See: ApplyPlanarMapping.

Box

Box mapping projects a 3-D box onto the sides and top of an object.

See: ApplyBoxMapping.

Spherical

Spherical mapping wraps the object around a sphere. The top edge of the texture shrinks into the top pole and the bottom edge into the bottom pole.

See: ApplySphericalMapping.

Cylindrical

Cylindrical mapping an image around an object like a cylinder the left and right edge will join each other.

See: ApplyCylindricalMapping.

Capped cylindrical

Capped cylindrical mapping also maps the image to the top and bottom of the objects.

See: ApplyCylindricalMapping.

Texture space

Single

Specifies that the texture will be mapped individually over each independent space.

Divided

Specifies that distinct regions of the texture will be used for each space, matching parts of the mapped object to the six independent texture spaces.

Sets the center point of the texture mapping widget in world coordinates.

Sets the rotation of the texture in world space.

The texture size.

Sets the texture size to be equal in all three directions.

Fits the texture to the object as established by the original mapping.

UVW offset

The amount the texture is offset from the origin of the UVW texture space.

UVW rotation

The rotation angle of the texture over the object in UVW texture space. Business in a box uk.

UVW repeat

The number of times the texture repeats across the object in UVW texture space.

The ApplyBoxMapping command adds a box texture mapping channel to an object and sets the mapping type to box.

Steps

1. Select objects, and press Enter.
2. Draw the mapping widget.
   See the Box command for option descriptions.
3. Enter a mapping channel number, or press Enter to accept the default value.

The ApplyCylindricalMapping command adds a texture mapping channel to an object and sets the mapping type to cylindrical.

Steps

1. Select objects, and press Enter.
2. Draw the mapping widget cylinder.
   See the Circle command for option descriptions.
3. Enter a mapping channel number, or press Enter to accept the default value.

The ApplyCustomMapping command adds a custom texture mapping channel to an object.

A specified mesh or NURBS surface or polysurface acts as the mapping for the selected objects. The mapping object is preserved in the mapping table so deleting the mapping object does not affect the mapping on the target object.

Steps

1. Select target objects.
2. Select the custom mapping surface or mesh.
3. Enter a mapping channel number, or press Enter to accept the default value.

The ApplyPlanarMapping command adds a texture mapping channel to an object and sets the mapping type to planar.

Steps

1. Select objects, and press Enter.
2. Draw the mapping widget.
   See the Rectangle command for option descriptions.
3. Enter a mapping channel number, or press Enter to accept the default value.

The ApplySphericalMapping command adds a texture mapping channel to an object and sets the mapping type to spherical.

Steps

1. Select objects, and press Enter.
2. Draw the mapping widget sphere.
   See the Sphere command for base sphere drawing options.
3. Enter a mapping channel number, or press Enter to accept the default value.

The ApplySurfaceMapping command adds a texture mapping channel to an object and sets the mapping type to surface.

The ExtractUVMesh command creates separate mesh objects extracted from the flattened UV meshes of a model.

The MappingWidget command turns on the mapping widgets for the selected objects.

The box mapping widget:

• Shows graphically how the texture mapping is bound to an object using a primitive (box, cylinder, sphere, or plane).
• Can be dragged, moved, rotated, and scaled by normal Rhino commands.
• Can have its control points turned on to re-size it.

Steps

1. Select objects.
2. Type the mapping channel number or press Enter.

The MappingWidgetOff command turns off the mapping widgets for selected objects.

The MatchMapping command changes the texture mapping properties of a selected object to duplicate a specified object.

You can also use the Match Mapping button in Texture Mapping Properties.

The RemoveMappingChannel command removes the specified mapping channels from an object.

Steps

1. Select objects.
2. Type the mapping channel number.

The Unwrap command projects the texture coordinates of the selected objects to a specified region of space.

The render meshes for the selection are flattened and that flattened mesh is used as the mapping space for applying textures.

Surface mapping texture coordinates and the texture assigned to the objects are projected onto the world xy plane.

Steps

• Select surface edges.
  Seams are allowed to separate during the flattening/unwrapping. Select a non-self-intersecting loop on the object.
  In many cases, particularly with closed objects, unwrapping will not be possible without the specification of seams.
  

The UVEditor command edits meshes that affect the texture coordinates of the original object. The texture meshes can be joined and split, and their control points edited.

Steps

1. Select objects.
2. Draw a rectangular region on the world xy plane.
   See the Rectangle command for detailed option descriptions.

The packed surface mapping texture coordinates are projected onto the world xy plane, and the texture assigned to the object is drawn in the same region.

The texture coordinates are represented as a collection of texture meshes.

When the texture meshes are edited, the texture changes on the object.

If an interior surface seam is selected in the polysurface prior to unwrapping, that seam will separate in the resulting flattened mapping meshes.

While the editor is open, control points for the mapping mesh objects can be turned on, and modeling commands such as Scale1D, SetPt, and CageEdit can be used to adjust the mapping mesh.

Unwrap Textures

Texture transparency

Sets the transparency of the texture in the viewport for visibility.

Highlight selected

Highlights the surface mesh when the projected mesh is selected.

Show wireframe

Shows the mesh wireframe on the object even when in a viewport display mode that does not support mesh wires.

Texture

Use material

Displays the texture associated with the diffuse channel of the material assigned to the object being unwrapped.

Use texture

Displays a specified texture from the Textures panel.

See also

Render

Rhino for Mac © 2010-2017 Robert McNeel & Associates. 24-Oct-2017