recalc final gather after changing filter?

[SgWRX]

do you have to recalculate the FG solution, or if you are writing, when you change the render filter? for example from box to mitchell?

 

thanks

[SgWRX]

thanks

[Munz]

you can also change the Samples per Pixel and Spatial Contrast without having an effecting the Final Gather saved file.

[SgWRX]

really?! a long time ago i posted something about doing FG calcs at low resolution and a small render size, like 1/4-4 at 320x240 as a memory/time saver. the response was yes, that's a good plan.

 

however over time, i started noticing that if i left the read/write option checked, but the freeze option un-checked, it looked like it was recalculating (much faster) based on the fact that i changed the sampling.. and on other occasions when i changed the render size.

 

so, i figured it made a difference. so just so i'm clear, you don't need to recalc (or, you can calculate then freeze) under these circumstances:

 

1. changing render output size (320x240 to 800x600)

2. sampling (1/4-4 to 16-64)

3. changing spatial contrast.

4. changing brightness/contrast in exposure control

 

thanks.

[SgWRX]

ok.

[Justin Hunt]

Also if you recalc with read/write on but Freeze off, mr will skip over any existing samples, thus making it apprear to calculate faster, howerver its not updating those existing samples.

 

jhv