When image_map'ing a PNG texture with alpha channel to a surface, that surface
still casts a fully opaque shadow.

See <web.4a00bbfb2b1505395dd6915e0@news.povray.org> for a sample shot; it shows
a semi-transparent PNG image of a leaf, UV-mapped to a mesh2 square floating
above a grey plane, with light from straight above.

As can be seen, the shadow doesn't match the shape of the leaf.

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clipka wrote:
> When image_map'ing a PNG texture with alpha channel to a surface, that surface
> still casts a fully opaque shadow.
> 
> See <web.4a00bbfb2b1505395dd6915e0@news.povray.org> for a sample shot; it shows
> a semi-transparent PNG image of a leaf, UV-mapped to a mesh2 square floating
> above a grey plane, with light from straight above.
> 
> As can be seen, the shadow doesn't match the shape of the leaf.
> 
> 

There is definitely something going wrong with the alpha/transparency
handling in 3.7 beta...  see the p.b.i reply to your post.

-Ive

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