Collision

For 1) : Application paint.net 4.0.3 (Final 4.3.5316.40022) Build Date mardi 22 juillet 2014 Hardware accelerated rendering (GPU) True Animations True DPI 96.00 (1.00x scale) Language en-US OS Windows 7 Service Pack 1 (6.1.7601.65536) .NET Runtime 4.0.30319.17929 Physical Memory 8 076 MB CPU Intel(R) Core(TM) i7-3770K CPU @ 3.50GHz Architecture x64 (64-bit) Process Mode 64-bit Speed ~3500 MHz Cores / Threads 8 Features DEP, SSE, SSE2, SSE3, SSSE3, SSE4_1, SSE4_2, XSAVE Video Card NVIDIA GeForce GTX 770 Dedicated Video RAM 1 990 MB Dedicated System RAM 0 MB Shared System RAM 2 048 MB Vendor ID 0x10DE Device ID 0x1184 Subsystem ID 0x28251462 Revision 161 LUID 0x0000A3C0 Flags None Outputs 1 Video Card Intel(R) HD Graphics 4000 Dedicated Video RAM 64 MB Dedicated System RAM 0 MB Shared System RAM 1 632 MB Vendor ID 0x8086 Device ID 0x0162 Subsystem ID 0x01621849 Revision 9 LUID 0x0000A6EF Flags None Outputs 0 For 2) : A screenshot taken from a Vegas Pro 12.0 project. (Couldn't attach it because its size is higher than 256 KB)

So this is what happens whenever you load a PNG file and try applying "Unfocus" effect on it, it all goes transparent like in the picture below : Sometimes you get to see only some parts of the picture (mainly when it's a text or an object with the same color), I also think that it may be a memory-related issue.