Region Render does not work on ground reflection when Tiff with transparency

[Zander85]

I forgot to check the "ground reflections" check box before I rendered my turn table animation. So I thought I had come up with a clever work around. My solution was to use "region rendering". This time I checked the reflections box and I drew a box mostly around just my reflections. This way I could re-render the reflection and then composite these renders back on top of my previous renders in After Effects. I wanted to keep my background separate from my renders for added control so I selected to 32 bit tiff as my output. To my dismay the renders did not include the reflection. Kinda lame. 

[Ed]

Zander -

You may want to try using your original render (no reflections) and create the floor reflections in After Effects.

See these video tutorials for three different techniques: 

http://vimeo.com/6834286

The Red Giant Warp plug-in technique is described in the 2nd half of this tutorial:
http://library.creativecow.net/articles/stern_eran/01_RG_Reflection/video-tutorial

There is a free After Effects reflection plug-in that I use and it works very well. 
Tutorial:
http://www.videocopilot.net/tutorial/reflection_plug-in/
Download:
http://www.videocopilot.net/presets/reflection_plug-in/

These techniques add some steps, but unlike the KeyShot floor reflections, you have control over the strength of the reflections (opacity), gamma, brightness, fall-off, blur and more.

So in the end, you may get a better match with your background and overall better result.

Ed

[Zander85]

You are the man Ed!!!!!! 

Thank you!