help with alphas black spots in render

sebcorel

when the camera is looking at it frontally and slightly raised those black spots are shown but when it rises they look normal, how could it make that in the frontal view those black spaces can not be seen ?. thank you

Eric Chadwick

Looks similar to alpha blend sorting problems. But you're using an offline renderer, hmm. Are you using an Arnold material?

seb3d

most likely your ray depth setting are to low. so looking from that low angle the rays have to pass trough a lot more transparent planes compared to the raised viewpoint. make sure to adjust those settings accordingly. and don´t forget to raise the "total" as well.

https://docs.arnoldrenderer.com/display/A5AFMUG/Ray+Depth

sebcorel

Eric Chadwick said:

Looks similar to alpha blend sorting problems. But you're using an offline renderer, hmm. Are you using an Arnold material?

yes im using an arnold material, it is actually working with ray depth, thanks

sebcorel

seb3d said:

most likely your ray depth setting are to low. so looking from that low angle the rays have to pass trough a lot more transparent planes compared to the raised viewpoint. make sure to adjust those settings accordingly. and don´t forget to raise the "total" as well.

https://docs.arnoldrenderer.com/display/A5AFMUG/Ray+Depth

thank you, it actually worked! my setting were too low