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Howto:Illuminate faces: Difference between revisions
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→Switch to another part of texture if illuminated
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You can no longer change the texture (see section above), but you can switch to another part of the same texture map and illuminate it. | You can no longer change the texture (see section above), but you can switch to another part of the same texture map and illuminate it. | ||
You need to make a texture map that is exactly 512 pixels wide (see [[ | You need to make a texture map that is exactly 512 pixels wide (see [[Textures & Texture Maps in SketchUp]]. The height must be any square of two (eg. 2<sup>0</sup>=1, 2<sup>1</sup>=2, 2<sup>2</sup>=4, 2<sup>3</sup>=8, 2<sup>4</sup>=16 and so on). This texture map has two sides that are each 256 pixels wide. The '''left side''' is for day-time textures, the '''right side''' is for night-time textures. Each night-time texture is positioned exactly 256 pixels to the right of the day-time texture. Here is an example taken from the shared model [http://scenemodels.flightgear.org/modeledit.php?id=1570 German village house - grey roof]: | ||
[[Image:Germanvillagehouse1_day.png|thumb|day-time textures]] | [[Image:Germanvillagehouse1_day.png|thumb|day-time textures]] | ||
[[Image:Germanvillagehouse1_night.png|thumb|night-time textures]] | [[Image:Germanvillagehouse1_night.png|thumb|night-time textures]] | ||