Away3D Forum alphaBlending bug

alphaBlending bug Software: Away3D 4.x

loth, Sr. Member Posted: 25 August 2011 10:35 AM Total Posts: 236 Hello i have error on alphaBlending with .bothSides=true; full object become transparent can be usfull for glass
Richard Olsson, Administrator Posted: 25 August 2011 01:25 PM Total Posts: 1192 [ # 1 ] I’m not sure I understand the issue. Can you explain it a bit more thoroughly, and perhaps post a screenshot?
theMightyAtom, Sr. Member Posted: 25 August 2011 04:23 PM Total Posts: 669 [ # 2 ] Hi loth, for glass try a reflective material (see examples) https://github.com/away3d/away3d-examples-broomstick/blob/master/src/EnvMapDiffuseTest.as Then use a ColorMaterial as the base, with a low alpha value. alphaBlending is for putting “holes” in your material via it’s alpha channel. (BitmapMaterials only) bothSides doesn’t work at the moment, if your scene has lights. I think it has to do with the normals only going one way (?) The only work around I’ve found is a double mesh, i.e. two planes facing in opposite directions instead of one. Just think of it as double glazing… Good luck!
theMightyAtom, Sr. Member Posted: 26 August 2011 12:04 PM Total Posts: 669 [ # 3 ] here’s one I prepared earlier…. `glass = new ColorMaterial(0x000000, 1); glass.addMethod(new EnvMapMethod(envMap)); glass.specular = 3; glass.alpha = 0.3; glass.gloss = 1000;` where envMap is a cube map.

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