I have some weird blue dots on my path tracing render. I guess its related to volumetric fog. Why this happened? When I turning off the volumetric fog, these dots disappear.
Not a 100% sure how the renderer works but at least in the old v-ray days when you would get empty squares would mean that the renderer would run out of memory at some point causing the bucket renderer to skip parts of the scene.
Perhaps under the hood there is a similar situation. See if reducing the resolution fixes the issue, if so then it might be that the card is just running out of v-ram mid render.
Thanks . maybe. I think this issue should not related to memory or something like this. Even with a few polycount scene, when I create a rectangle light in a active volumetric fog in path tracing render this will be happen. Maybe its a bug between volumetric fog and path tracing. I don’t know