Autodesk 663B1-05A111-1001 User Guide - Page 286

12 | Basics Menus Reference > Modify > Convert > Texture to Geometry Minimum Segment Size Sets the minimum segment size for the image using a percentage value that is based on the total area for the input image. The higher the Minimum Segment Size value the fewer the segments produced during the segmentation phase. For example, a Minimum Segment Size value of 0.5 would indicate that a color segment must occupy at least half of the area of the input image in order to be detected and segmented. While the valid range for this option is between 0.005 and 1.0, useful values range between 0.005 and 0.2. You can determine the actual number of pixels specified by this value by multiplying the total number of pixels by the Minimum Segment Size value. For example, an image that is 256 x 256 would have 65,536 pixels. If a Minimum Segment Size of 0.2 was specified, the minimum number of pixels that could be detected for a segment would be 65,536 x 0.2 = 13,107 pixels. Color Range Specifies the size of the palette of colors that may be accepted into a segment during the initial detection of colors in the image. The range is between 1 and 10 colors. Setting the Color Range to a smaller value limits the color range and introduces more segments. Setting the Color Range to a larger value increases the size of the search range and creates less segments. The default value of 4.5 is useful in the majority of situations. Maximum Color Difference When features get detected in an image there are often many segments that share the same color. To reduce the number of shading materials produced, the segments are grouped by the common colors that are shared. Maximum Color Difference specifies the difference in RGB values that can occur between segments for the grouping operation. When the Maximum Color Difference is set to a small value, the less likely segments will be grouped. The default value of 0.125 is optimal in the majority of situations. Segment Meshing Options These options specify how the segments that are produced get subdivided in the resulting surface mesh. Max Points to Add Specifies the maximum number of points that can be added to the resulting mesh to reduce thin triangle polygons. Thin polygons can produce visible artifacts when an image is rendered. Increasing this setting increases the number of polygons that result on the mesh. In general, this attribute is adjusted on the texture to geometry node in the Attribute Editor once the resulting mesh is completed and thin polygons are discovered. Basics 286