property test: textmap intensity issue

[savat]

I want to replicate the nano mites effect so the starting flow that I've in mind is to use the good old gradient ramp map to create disintegration isles. One grad map is used to implement smoke on borders and another to indicate what area cames to be disintegrated (the white one). You can see the flow in the image below but using it I can't send white chuncs to the next event. Any idea? thanks.

Same question is posted on the fb page.