So I've got grass and ivy in this thing I'm working on. The grass casts a stark, dark shadow at the moment, and I only want it to block *some* light. Preferably leaving behind a nice, blurry green shadow. Here's an old screen to illustrate my problem:
Looking around on UDN, I saw something written up on 'Transmission' value, and how you control it through Transmission Colour & Transmission Mask inside the material editor. When I plug stuff into these two areas, it does change the lighting on my mesh itself (they seem to get a little brighter), but not on the shadows it casts. The UDN article (http://udn.epicgames.com/Three/Lightmass.html
ctrl+F: transmission) points out particularly additive and modulate blendmodes and how they're compatible. I'm using Blend_masked, cause it's all I really need for this foliage. Here's an example of Transmission from UDN.
Anybody got any sweet tips on how get my grass casting a nice, only slightly visible, coloured shadow on the ground?