DRW: Increase weight paint wire depth bias
By default wire would z-fight against the surface. Increase the bias, also don't adjust the 'w' component since it causes bias that depends on the view direction.
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@ -19,7 +19,7 @@ void main()
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gl_Position = ModelViewProjectionMatrix * vec4(pos, 1.0);
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/* Add offset in Z to avoid zfighting and render selected wires on top. */
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/* TODO scale this bias using znear and zfar range. */
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gl_Position.zw -= exp2(-20.0) * (is_select ? 2.0 : 1.0);
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gl_Position.z -= (is_select ? 2e-4 : 1e-4);
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if (is_hidden) {
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gl_Position = vec4(-2.0, -2.0, -2.0, 1.0);
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