User manual NEWTEK LIGHTWAVE 3D 7.5 ADDENDUM

[. . . ] LightWave 3D 7. 5 Update This publication, or parts thereof, may not be reproduced in any form, by any method, for any purpose without prior written consent of NewTek Europe. San Antonio, TX 78249 USA 1-800 TOASTER (210) 370 8000 www. newtek. com NewTek Europe SARL Europarc 17 avenue Léonard de Vinci 33600 Pessac France +33 (0)5 57 262 262 www. newtek-europe. com Manual version: 1. 0 L I G H T WAV E 3 D 7 . 5 U P D AT E 3 TABLE OF CONTENTS Viewport Changes . . 20 4 TA B L E O F C O N T E N T S Motion Modifiers . [. . . ] However, the default command parents the lights to the object, so be careful since you don't want to delete the children. To Attach Commands To attach a Powergon command script to polygons, first select the target polygons in Modeler. Then choose Construct > Additional > AddPowergon. This brings up a dialog where you can enter the command script. There are certain special "escape" characters you can use. \a \c \d \i Returns the area of the polygon. Returns the position of the polygon's center in the form "x y z". Returns the polygon's normal vector as "nx ny nz". Returns the item ID of the object containing the polygon. 32 L I G H T W A V E 3 D 7 . 5 U P D A T E \n \r Returns the polygon's normal converted into heading, pitch and bank angles (bank is always 0) in the form "h p b". Creates a line return to signify the end of the current command and the start of the next. Note that it is not needed at the very end of the last command. The default command is "AddSpotlight LGON\rPosition \c\rRotation \n\rParentItem \i\rCreateKey 0". This adds a spotlight named LGON, positions it at the center of the polygon, rotates it to match the polygon's normal, parents the light to the object, and creates a keyframe at frame 0. Figure 39: The Add PowerGon dialog Once you click OK, the command script is attached to the selected polygons. (Technically, this action adds a PWRG type polygon tag to the polygons. ) To Clear Commands To clear Powergon commands from polygons, simply select the polygons and choose Construct > Additional > ClearPowergons. Activate the General Powergon option and click OK. Executing the Commands Once the Powergon commands are attached, load the object into Layout. Then choose Scene > Generics > DoPowergons. This executes any command scripts attached to the selected object. L I G H T W A V E 3 D 7 . 5 U P D A T E 33 LUXIGONS Luxigons are very similar to Powergons, but are specialized just to add lights and set certain light properties. To use, in Modeler select the desired polygons and choose Construct > Additional > AddLuxigon. When the dialog appears, select the type of light you wish to add and set its properties. Figure 40: The Add Luxigon dialog Next, load the object into Layout and choose Scene > Generics > ConvertLuxigons. If you wish to use an existing light's properties, select it in the Clone Item pop-up menu. Enter the desired name of the new lights in the Light Name field. After you click OK, the defined lights will be created, positioned at the center of the appropriate polygons, aligned with the polygon's normal, and parented to the object. Figure 41: Converted Luxigons attached to a simple ball You can clear Luxigons from selected polygons using the Construct > Additional > ClearPowergons command. 34 L I G H T W A V E 3 D 7 . [. . . ] When you run UV Spider, the UVs are applied between the Start and End values on the polygons in the band. If the Direction is U, the band stretches in the U direction with a top and bottom in the UV plane determined by the V Start and V End values. If the Direction is V, then the band goes in the V direction. Figure 56: UV Spider used with default settings with a single polygon selected. UV polygons are selected in the UV Texture viewport to show corresponding mesh polygons. By applying UV Spider multiple times in the U Direction, adjusting the V Start and V End positions each time, you can gradually "unwrap" an object. [. . . ]