I’m having this weird problem using Mental Ray and Final Gather. My scene have a skylight, a direct spot with Raytrace Shadow and 2 omnis to fill the light, all my models I’ve created with edit poly + turbosmooth. So, my animation goes ok, this is frame 85:
It’s all good, but in frame 88 this weird thing happens:
I can tell you that I’ve tryed everything I could imagine, even replacing the direct with a MR Area Spot gives me the same result. I have also tryed playing with FG radius and also raytrace setting for the shadow and for MR, sometimes the black pixels moved but they are always there from frame 88 (87 actually but less pixels) to frame 112 when the turtle set his helmet on the head.
The only solution I came is to render the shadow in another pass and render this scene with shadows turned off and then compose in combustion, it’s working fine but I would like to know if someone have another clue to what is going on here.
BTW, it’s 3dsmax 7.5.
Thanks in advance for any help and hope you enjoy my turtle.