{"id":4054,"date":"2011-03-03T22:52:25","date_gmt":"2011-03-03T22:52:25","guid":{"rendered":"http:\/\/www.mrbluesummers.com\/?p=4054"},"modified":"2011-03-04T01:36:46","modified_gmt":"2011-03-04T01:36:46","slug":"semi-transparent-layer-rendering-in-3dsmax","status":"publish","type":"post","link":"http:\/\/www.mrbluesummers.com\/4054\/3d-tutorials\/semi-transparent-layer-rendering-in-3dsmax","title":{"rendered":"Semi-Transparent Layer Rendering in 3dsMax"},"content":{"rendered":"
In this tutorial, I’ll be sharing a quick technique for removing the glows, halos, or other anti-aliasing artifacts from your matte\/shadow renders or Render Elements renders. \u00a0The key here is getting the alpha map to apply to the object before<\/em> the anti-aliasing effect blends the edges of your object with the background. \u00a0See the examples below.<\/p>\n Notice the black halo around the green areas. This is where the transparency is failing.<\/p>\n<\/div>\n These black halos are caused by anti-aliasing and attempting to render at transparent image out of 3dsMax. \u00a0When the image is smoothed during the render it blends colors together. \u00a0If our color map is anti-aliased separately from the alpha map, we get color bleeding. \u00a0In the image above, I’ve replaced the back background<\/p>\n I detail the following steps below, but for people looking for the quick answer, here it is.<\/p>\n Now I won’t tell you how to set a black background since it’s the default and, if you’ve changed the background from the default, you know how to change it back.<\/p>\n Go to the Customize menu and select "Preferences…"<\/p>\n<\/div>\n Select the "Use environment alpha" option.<\/p>\n<\/div>\n Disengage the pre-multiplied alpha setting<\/p>\n<\/div>\n Now you’re ready to open the file in Photoshop. \u00a0Just open your new .tga file, and re-apply the alpha map that has been saved separately embedded within the image file.<\/p>\n Once you've opened the new .tga file, go to Select and pick "Load Selection…"<\/p>\n<\/div>\n Load the image's alpha channel. It should be the default.<\/p>\n<\/div>\n<\/a><\/p>\n
Summary<\/h2>\n
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Render with a Black Background & Transparency<\/h2>\n
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Save the Render to .tga with Pre-Multiplied Alpha Disengaged<\/h2>\n
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