Single layer exr's

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Hello, I've got one question. How to render single layer exr's instead multilayer in karma?
Edited by sniegockiszymon - Nov. 8, 2022 15:26:27
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I believe 'Enable Legacy EXR Mode' on USD Render ROP is what you are looking for.
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ysysimon
I believe 'Enable Legacy EXR Mode' on USD Render ROP is what you are looking for.
unfortunately still uses multi layer but some older version of multi exr (unless i need to set something else as well)
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legacy exrs still have multiple layers. The new exr is 'multi-part' which some older software doesn't support. Are you looking for one layer per file? In that case you'll have to create a product for each layer with a unique file name.
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jsmack
legacy exrs still have multiple layers. The new exr is 'multi-part' which some older software doesn't support. Are you looking for one layer per file? In that case you'll have to create a product for each layer with a unique file name.
Yes,I want all passes on seperate file, it should be one checkbox like in redshift or blender for example. Multi layers are not always efficient esspecialy when you are using subtractive workflow in compositing
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sniegockiszymon
jsmack
legacy exrs still have multiple layers. The new exr is 'multi-part' which some older software doesn't support. Are you looking for one layer per file? In that case you'll have to create a product for each layer with a unique file name.
Yes,I want all passes on seperate file, it should be one checkbox like in redshift or blender for example. Multi layers are not always efficient esspecialy when you are using subtractive workflow in compositing

I thought this approach would increase a lot of hard disk IO time?
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sniegockiszymon
jsmack
legacy exrs still have multiple layers. The new exr is 'multi-part' which some older software doesn't support. Are you looking for one layer per file? In that case you'll have to create a product for each layer with a unique file name.
Yes,I want all passes on seperate file, it should be one checkbox like in redshift or blender for example. Multi layers are not always efficient esspecialy when you are using subtractive workflow in compositing

I thought this approach would increase a lot of hard disk IO time?
You are still saving the same amount of data, but in multiple files, so propably saving lasts a little bit longer, but there is huge advatange in reading when you are using subtractive workflow in compo (you load only beauty and then subtract only pass you want to change). There is great explanation https://www.youtube.com/watch?v=e79yb3UvQTQ [www.youtube.com]
Edited by sniegockiszymon - Nov. 22, 2022 17:34:20
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sniegockiszymon
ysysimon
sniegockiszymon
jsmack
legacy exrs still have multiple layers. The new exr is 'multi-part' which some older software doesn't support. Are you looking for one layer per file? In that case you'll have to create a product for each layer with a unique file name.
Yes,I want all passes on seperate file, it should be one checkbox like in redshift or blender for example. Multi layers are not always efficient esspecialy when you are using subtractive workflow in compositing

I thought this approach would increase a lot of hard disk IO time?
You are still saving the same amount of data, but in multiple files, so propably saving lasts a little bit longer, but there is huge advatange in reading when you are using subtractive workflow in compo (you load only beauty and then subtract only pass you want to change). There is great explanation https://www.youtube.com/watch?v=e79yb3UvQTQ [www.youtube.com]

Multipart exr already only loads the passes being used.
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There are other reasons to prefer a discrete file per AOV. If you don't want to archive AOVs that didn't contribute to the final comp, for instance. Or if you sometimes find yourself in a situation where you'd like to version up only a portion of the render.
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