If the puddle is thick enough, it can be totally opaque. In which case, there's not a lot of difference between a blood shader and an opaque glass shader. It's all about the shape. If you have the wrong shape, it won't be convincing.

So, go to my web site and get my Orb prop and shaders that come with it.

http://sites.google.com/site/bagginsbill/free-stuff/orbs

After installing that, load the first Orb shader, Orb001_Opaque.

After you load it, at the top left is a SimpleColor node. Change it to RGB 120, 0, 20 or something similar.

Make sure you have stuff to reflect all around, as the effect is largely about Fresnel reflection. I think you're using my EnvSphere already - that will work. An HDR image will work better than an LDR for that.

Here's TrekkieGrrrl's morphing puddle, done as specified above. Not the best shape, but the only puddle I have. I happened to be playing with Chris Cox's new bowling props so I threw in the puddle and rendered.

If you're using Poser Pro with render GC, you'll want to disable the shader GC.

---

Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)