Problem:
When rendering really large images, sometimes we need to update only a region of the render with changes and don’t want to re-render the whole image. What we’ve done in the past is region render the changes and patch them in After Effects or Photoshop. But I want to render the region and have it save on top of the previous render, but it doesn’t do that automatically – I think it should.
What I’ve been doing is saving a .vrimg and separate render channels (.exr) under frame buffer options. Then if there are changes (and there always are), I load in the previously rendered .vrimg into the frame buffer and render the region. The problem is that upon render region completion, it overwrites the whole .vrimg and individual render channel .exrs with ONLY the region rendered, destroying the previous render. If I want to save the whole image + render channels, I have to turn off automatic save, render, then manually save a .vrimg and then manually save out the render channels individually. When you save automatically from the VFB it adds the frame number (ie “0000”) to every file, but when you save manually, it doesn’t do this which is why I have to save over the old render channel individually. This is problematic because it takes a lot more time and introduces mistakes.
Solution:
When you load a .vrimg into the VFB and render a region, make it to where it saves the WHOLE image in the VFB + render channels automatically, over the old saved files. Not just the new region rendered, but the old .vrimg and region render addition.
When rendering really large images, sometimes we need to update only a region of the render with changes and don’t want to re-render the whole image. What we’ve done in the past is region render the changes and patch them in After Effects or Photoshop. But I want to render the region and have it save on top of the previous render, but it doesn’t do that automatically – I think it should.
What I’ve been doing is saving a .vrimg and separate render channels (.exr) under frame buffer options. Then if there are changes (and there always are), I load in the previously rendered .vrimg into the frame buffer and render the region. The problem is that upon render region completion, it overwrites the whole .vrimg and individual render channel .exrs with ONLY the region rendered, destroying the previous render. If I want to save the whole image + render channels, I have to turn off automatic save, render, then manually save a .vrimg and then manually save out the render channels individually. When you save automatically from the VFB it adds the frame number (ie “0000”) to every file, but when you save manually, it doesn’t do this which is why I have to save over the old render channel individually. This is problematic because it takes a lot more time and introduces mistakes.
Solution:
When you load a .vrimg into the VFB and render a region, make it to where it saves the WHOLE image in the VFB + render channels automatically, over the old saved files. Not just the new region rendered, but the old .vrimg and region render addition.
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