Alternativa3D - Outlining 3D objects

Question

I'm trying to make black-outlined objects using the Alternativa3D engine, I'm going for a cartoonish look. How can I do this?

Hehe, [Borderlands](http://g-ecx.images-amazon.com/images/G/01/videogames/detail-page/borderlands.02.lg.jpg). — Marty, Dec 08 '11 at 23:38

score 1 · Answer 1 · answered Dec 08 '11 at 18:50

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I don't know if A3D has a built-in solution, but in general case you should make the second model, place it under the existing one and apply entrude and tint to black shaders to it.

answered Dec 08 '11 at 18:50

soulburner

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I think that's a terrible idea. Double your poly count just to get an outline? Surely this is something a shader could handle or some other form of post processing. – Jul 08 '14 at 06:05

score 1 · Accepted Answer · answered Dec 08 '11 at 23:34

I had a brief look through the Alternativa3D documentation and couldn't find materials or shaders for that. Would you be able to use an alternative 3D API, like Away3D ? If so, Away3D already offers a CellShaded material, as you can see in this sample:

Away3D Cell Shading Example

Also, you have the source for the above example:

var material : ColorMaterial = new ColorMaterial(0xfbcbc1);
material.ambientColor = 0xdd5525;
material.ambient = 1; //0xdd5525;
material.specular = .25;
material.diffuseMethod = new CelDiffuseMethod(3);
material.specularMethod = new CelSpecularMethod();
material.addMethod(new OutlineMethod(0x000000, 2/50));
CelSpecularMethod(material.specularMethod).smoothness = .01;
CelDiffuseMethod(material.diffuseMethod).smoothness = .01;
material.lights = [ _light, _light2, _light3 ];

Alternativa3D - Outlining 3D objects

2 Answers2