Shadow Casting Broken In 2.48

Support Compositing and Post Processing
1

Hi All,

I have attached an image and a BLEND file.

Can anyone tell me why the shadows casting is broken in 2.48?

Attachments

transparency_error.blend (442 KB)

shadow_error.jpg720×480 24.1 KB

2

That is an alpha-mapped plane isn’t it?
That means you need to turn on TraShadow (transparent shadow rendering) on the shadow-receiving object. Do this in the Shaders Panel of the Material Subcontext (F5) of the Shading Context.

3

Thanks Egan, I had forgotten that Blender works that way.

In other programs, shadows are controlled by the lights, in Blender, shadows are controlled by the materials.

4

Both really but you get more control this way.

5

I think TraShadow button should be on by default when you create a new material. It just makes sense. If I really want my shadow to fail, that is generally an exception, not the rule.

6

One of this devs did this a while ago, but they didn’t commit it because it had a notable drop in rendering time, as TranShad takes extra time to compute, regardless of the existence of transparent objects.

7

Yessirreebob.