Black Render Screen Question

Become a member of the CGSociety

Connect, Share, and Learn with our Large Growing CG Art Community. It's Free!

 
Thread Tools Display Modes
  06 June 2018
Black Render Screen Question

I just completed my first project in C4D in R19 Studio. It's a fairly complex scene with some animation. As I've been creating the scene, I've been doing Render Views successfully. The final output is going to be a QT movie. But I've read that it is better to save to a format such as PNG and collate the images after the render in a program such as After Effects with a final output as QT.

I created the render settings including a preset Output of HDTV1080 with PNG as the output format. I started the Render with Render to Picture Viewer on my iMac. After over an hour, the only images showing up in Picture Viewer are black screens with no content. Plus the size of the PNGs are only 13 KB. Although the first few frames are fairly complex, they are stills. But, yet, all the rendered screens so far are showing up black in the Picture Viewer. I just learned about Team Render and have a network of two other computers which I plan to add to help the renders.

But, in the meantime, it still seems that the first few frames of the renders should be larger than 13 KB and they show the rendered screen images and not black.

Any suggestions what might be happening? Thanks!
 
  06 June 2018
There are a lot of things that could cause this:
the camera is key framed to a position inside another object
you didn't add any lights and auto light is off in the render options
you have disabled rendering in the layer manager
you are looking at the alpha channel in the picture viewer
you have hidden all your objects in the render (Red dot in OM)
you have the wrong camera set as the render view
your lights have shadows enabled but are behind or inside other objects

and there are more I am sure...
__________________
I take none sugar
 
  06 June 2018
Originally Posted by pacificm: I just completed my first project in C4D in R19 Studio. It's a fairly complex scene with some animation. As I've been creating the scene, I've been doing Render Views successfully. The final output is going to be a QT movie. But I've read that it is better to save to a format such as PNG and collate the images after the render in a program such as After Effects with a final output as QT.

I created the render settings including a preset Output of HDTV1080 with PNG as the output format. I started the Render with Render to Picture Viewer on my iMac. After over an hour, the only images showing up in Picture Viewer are black screens with no content. Plus the size of the PNGs are only 13 KB. Although the first few frames are fairly complex, they are stills. But, yet, all the rendered screens so far are showing up black in the Picture Viewer. I just learned about Team Render and have a network of two other computers which I plan to add to help the renders.

But, in the meantime, it still seems that the first few frames of the renders should be larger than 13 KB and they show the rendered screen images and not black.

Any suggestions what might be happening? Thanks!
There could be any one of a number of things happening:

- Check the visibility options for all objects in the scene: is anything set incorrectly? For instance, is "visible in render" turned off for any objects? (this is controlled with the two dots adjacent to the object name in the Object manager.

- Is the camera inside an object?

- Do you have lights in the scene, and/or Is autolight turned off in render options?

- Do you have compositing tags on any objects? If so, how are they set?

- Have you inadvertently set a non perspective view to be the render view? Make sure that View > Use as render view is enabled in the correct perspective viewport.

It might be none of the above, but this is what I would check on to start...

BTW, it is understandable that the black PNG files are 13K: an all-black file is easy to compress, and will take up very little space on disk.

Edit: oops, Bunter responded while I was writing mine; didn't mean to be redundant...
 
reply share thread



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
CGSociety
Society of Digital Artists
www.cgsociety.org

Powered by vBulletin
Copyright 2000 - 2006,
Jelsoft Enterprises Ltd.
Minimize Ads
Forum Jump
Miscellaneous

All times are GMT. The time now is 08:31 AM.


Powered by vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.