I'm trying to do a "melting object" effect using fluid simulation (in 2.77a), but I'm having trouble doing a smooth transition. My brute-force approach is to use keyframes to turn the visibility of the original object & fluid off and on (respectively). The trouble is, the first frame of the fluid has flowed more than it should have, compared to subsequent frames, so the transition from object to fluid is very abrupt. I double-checked that the simulation start time is 0, and played around with the settings. The only thing that helps is increasing the resolution, but I'm already up to what my computer can reasonably do.
Has anyone else seen this? Any tricks for getting around it? I checked various fluid tutorials, but I didn't see this problem covered. Thanks.
[Updates] Below are frames 23-25 (24 is the first frame of the simulation). Note that 24 has already "melted" quite a bit, but there's almost no difference in 25. The file is currently available at http://www.pasteall.org/blend/42419.