Render Mask > Texture. Intermittant issues

[Morne]

Hi all

Are there any known bugs with this? It seem to sometiomes work and sometimes not. When it doesnt work, it renders the whole image instead of only where the mask is white. Additionaly, I get a black outline edge of where the mask is suppose to be. So the whole image renders, but the edge of the mask is black.

It's suppose to render inside that line, and black outside that line
The masks are just pure black with pure white

VRay 3.30.05 build 26676

I also tried scaling the jpg down as I thought maybe the res is too high, but no difference

[yavor.rubenov]

Hello,

Have you set the previous render to "clear" (in V-Ray Settings->System) ? If it is not set to clear - the render mask just blends with the image from the previous frame.

If you've done this and it still is not good - could you send a part of the scene for further investigation ?

Best regards,
Yavor

[Morne]

This is on stills. It also happens when you just open max and render (so there's no previous frame rendered)

[yavor.rubenov]

Then it'll be best if you could get us a part of the scene with the jpg you use for mask.