Modeler

Chapter 8: Map Tab 247Show / Hide Polygons By SurfaceSelect By Surface from the Select pop-up menu to manipulateby surface. You’ll also need to select a surface from the Surfacepop-up menu.Light TypeIn Vertex Paint, you can use distant lights, point lights, andspotlights. You can also set the ambient color for the lights,which affects the entire scene. Below is a table of the parametersavailable for each light. These are used for OpenGL’s lightsettings. For more information on the parameters, refer to“OpenGL Programming Guide”, published by Addison Wesley(ISBN: 0-321-17348-1).ShowSelectHideHide UnSelSel AllUnSel Allshows polygons of selected surfaceselects polygons of selected surfacehides polygons of selected surfacehide unselected polygonsselects shown polygonsunselects shown polygonsDistant Light Point Light SpotlightDiffuse 4 4 4Ambient 4 4 4Specular 4 4 4Position 4 4 4Spotlight Position 7 7 4Spotlight Angle 7 7 4Constant Attenuation 7 4 4Linear Attenuation 7 4 4Quadratic Attenuation 7 4 4Positioning the LightVertex Paint: Light SettingSetting the Light SourceSetting light sources on the Light tab determines the number ofthe lights, color properties, position, and other properties usedin the “Lighting Shade” display mode. At the same time, it isused for the baking shading color with the Burn Lighting Colorscommand in the color mode. You can have up to eight differentlightsTo move a light, click on the Position field on the Light tab andenter the coordinates in the dialog that appears. You can alsojust grab the light in the 3D view with your LMB and drag it towherever you like.Distant LightGenerally, a distant light is a light source which you only specifythe light direction. In Vertex Paint, the direction of the distant lightis measured as a vector from the light Position to the Origin.Moving the light position changes the vector direction.Choosing LightTo choose light, select one from the Name pop-up menu or clickthe light icon in the 3D view with your LMB, if it’s visible.Clicking on the checkbox next to the Name pop-up menuactivates the light and affects the calculations of the light sourceon the scene. Click the checkbox off to deactivate the lightsource. Inactive light sources do not illuminate the scene.