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Hello,
This is my first time posting on here and I very much hope that someone will be able to solve my current problem.
I am trying to render a scene that I am working on with Global Illumination that has both an animated camera and animated objects. I don't know if it matters, but I should say that there are a lot of animated objects. The scene contains three trains that are animated along with a few hundred cars that are also animated. The scene contains just a vray sun and sky for lighting.
I followed this tutorial below for how to render the indirect illumination:
http://www.workshop.mintviz.com/tuto...on-using-vray/
So now my problem. When I begin to render after creating the pre-pass, for some reason the global illumination does not always render on my animated train. In the below images, which represent the RawGI, you can see frames 0414 and 0415. Notice that in 0414 the train appears all black. Then in 0415 the front part of the train has GI. I assume the windows don't because there materials diffuse color is black, but why should the entire train not always receive GI. In some of the later frames, more of the train receives GI. Could it have to do with distance from camera (although the environment which at some points is much further away still has GI).
Frame 0414:
frame 0415
My irradiance map settings haven't changed much from their defaults. 50 hsph subdivs, 50 interp samples, use camera path is checked, preset is very low. For light cache, all I changed was I checked use camera path.
It just seems like when I am doing my prepass, it ignores my train on some of the frames, for no reason that I can think of. If I render just a regular frame with the IR modes set to single frame then it works just fine, but I believe I need to do the prepass' otherwise I will get flickering.
Please if anyone can help. Thanks.
Justin
This is my first time posting on here and I very much hope that someone will be able to solve my current problem.
I am trying to render a scene that I am working on with Global Illumination that has both an animated camera and animated objects. I don't know if it matters, but I should say that there are a lot of animated objects. The scene contains three trains that are animated along with a few hundred cars that are also animated. The scene contains just a vray sun and sky for lighting.
I followed this tutorial below for how to render the indirect illumination:
http://www.workshop.mintviz.com/tuto...on-using-vray/
So now my problem. When I begin to render after creating the pre-pass, for some reason the global illumination does not always render on my animated train. In the below images, which represent the RawGI, you can see frames 0414 and 0415. Notice that in 0414 the train appears all black. Then in 0415 the front part of the train has GI. I assume the windows don't because there materials diffuse color is black, but why should the entire train not always receive GI. In some of the later frames, more of the train receives GI. Could it have to do with distance from camera (although the environment which at some points is much further away still has GI).
Frame 0414:
frame 0415
My irradiance map settings haven't changed much from their defaults. 50 hsph subdivs, 50 interp samples, use camera path is checked, preset is very low. For light cache, all I changed was I checked use camera path.
It just seems like when I am doing my prepass, it ignores my train on some of the frames, for no reason that I can think of. If I render just a regular frame with the IR modes set to single frame then it works just fine, but I believe I need to do the prepass' otherwise I will get flickering.
Please if anyone can help. Thanks.
Justin
