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shadow matte shader problem


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I'm using the vex shadowmatte shader to help with separating some elements but it seems in this take my object isnt being completely matted out in the alpha channel, attached is the alpha, what's causing this and how can i fix it?

rendered with micropolygon mode


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VEX shadow matte works by default that way. It sets alpha to 1 in shadowed area. Thus you see white spots on a ship in place of shadows. This shader is meant to works this way to allow adding shadows in comp (though you can set alpha to 1 on its params).

If you just need a matte for an object, use "Matte shading" parm on Object->Render->Shading tab.

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