Texture shapes

The Texture shapes tool is used for the manual texturing of shapes and individual faces. For exact texture mapping, several modes are available. You can open the tool in the following ways:

• Click the Texture shapes tool .
• Click Shapes > Texture Shapes in the main menu.
• Drag an image file from the Navigator window onto shapes.

Note:

The tool dialog boxes are usually modal, meaning they stay in front of the CityEngine main window to allow repeated application to different shape selections.

Choose a texture image

The Texture shapes tool provides an interactive means for texture assignment. Choose an image to use as a texture:

• Click the Browse/pick button and browse to the file within the project. The upcoming dialog box also shows (at the bottom) a list of images that are already used in the current selection.
• Click or drag an image file from the Navigator window.

Texture shapes options

The following is a list of the Texture shapes tool parameters:

Orientation Alignment	Select an orientation for the following parameters, either global or local.
Rotation	Correct the image orientation using the following options in the Image Transformation group: Rotation—None | 90º counter clock wise | 180º | 90º clock wise | Arbitrary Flip horizontally Flip vertically
Arbitrary Rotation	Specify an arbitrary rotation angle in degrees, if Rotation above is set to Arbitrary.
Texture Coordinates Mapping Mode	There are four modes with according attributes for the texture coordinate mapping, which are specified in the Texture Coordinates Mapping group: Keep current mapping—This mode leaves the currently set mapping (no attributes). Stretch to polygon—This mode is used for stretching the texture across the selected face. Note that if entire shapes are selected, the texture is stretched across all present coplanar face groups. Align to—Bottom left corner | Bottom right corner | Top left corner | Top right corner (only has an effect if one of the repetition numbers is not a whole number). Horizontal repetitions—This is the number of times the texture is repeated horizontally (decimal number allowed). Vertical repetitions—This is the number of times the texture is repeated horizontally (decimal number allowed). Dimension—This mode allows you to set the actual dimension of the used texture. Align to—Bottom left corner | Bottom right corner | Top left corner | Top right corner Absolute texture width—This is given in meters. Snap horizontally to bounds— This stretches the given texture's width such that it horizontally fits the selected face with a whole number of repetitions. Absolute texture height—This is given in meters. Snap vertically to bounds—This stretches the given texture's height such that it vertically fits the selected face with a whole number of repetitions.

Scene selection issues

The Texture shapes tool acts differently depending on the scene selection (colored blue):

• Single or multiple face selection—The texture is individually applied to each selected face.
• Single or multiple shape selection—The texture is individually applied to each group of coplanar faces within the selection.

Examples

Stretch to Polygon is shown using 1.8 horizontal repetitions, 1.3 vertical repetitions with Align to Top left corner.

Dimension is shown using Absolute texture width 5.75, Absolute texture height 8.0, Align to Bottom right corner and snap horizontally to bounds, so the texture fits exactly three times.