First I render the mesh only with shadows, save to texture and blur to use it as shadow in the final shader.
The first problem is obvious, edges must to be fixed:
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Then I needed to find those edges. How? With the differente between the blurred depth and the original.
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The perfect filter would be a bilateral filter (smart filter in photoshop) but instead getting mad doing it, I just tried to apply the idea by my self. Its not perfect, but works for now.
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