How to judge whether an object is visible under current view?(was rendered not working)

anonymous_user_0fb8b636 · January 6, 2019, 2:03pm

I’ve seen similar questions get objects in camera view via get recently rendered actors, but my situation is that I need to know whether a object in the camera view is occluded by others. In another word, I found that even an object is occluded, it’s still rendered, it really confused me .

Hope to get your help!!! Thanks very much !

anonymous_user_0fb8b636 · January 6, 2019, 2:21pm

For example, as the figure shows below
when I tries to get all rendered objects, i still get the cube behind the wall.
ONLY if I turn back to this will I get rid of the cube in the list of rendered objects.

Tuerer · January 6, 2019, 2:30pm

Was Recently Rendered works for that. Maybe your texture is translucent, even if it’s fully opaque at the moment?

anonymous_user_0fb8b636 · January 7, 2019, 9:48am

Thanks for the reply, I check on that, actually I’m using a dynamic material instance for that wall,but based on simple wall material,I think it’s opaque, then how i confirm whether it’s translucent?
By the way , I set the r.visualizeOccludedPrimitive 1, it tells me the cube behind the wall is indeed occluded, it’s weird…

Thanks again for the reply!

Tuerer · January 7, 2019, 9:53am

Check the Blend mode in the material graph, in the details when no node is selected:

anonymous_user_0fb8b636 · January 8, 2019, 9:39am

Hi, Tuerer, I do check that, it is set to opaque, but I notice there is a decal blend mode that is set to translucent and it’s unchangable, I don’t know whether this is the cause. By the way, I’m using this material to create dynamic material instance at runtime, so that I can change the color or textures of the wall at runtime,I wonder if this is an issue.

Thanks!