Tweet
Hey Guys,
Apologies if answers to some of my questions here have already been posted in other topics. I've been researching and see that there are a lot of discussions, but even sifting through it all I still have some confusion regarding the best approach for EXR files.
I am working on a 3D animation for a product (approximately 1700 frames total) and have been considering outputting into a multi-channel EXR image for compositing within After Effects. To be honest, I don't need a ton of flexibility in post, but it would be nice to use the cryptomatte and also just have all the passes stored in one file. For this project, I really only have ZDepth, Cryptomatte, Glare, and a few additional passes that are produced from the Denoiser.
The initial test renderings I've done, at a resolution of 1080P are producing 16bit EXR files that range around 40 - 60mb (so lets say an average of 50mb). At 1700 frames that will be a total of about 85GB for the entire sequence. 85GB seems somewhat excessive for a basic 1 min animation, but I guess it really depends on the complexity and I suppose in many cases that may seem small. However, ideally, I'd like to render out at 4K, but then I'm probably looking at an increase of about 3 - 4x the file size and then we get into the range of several hundred GB's of files. 85GB alone is a lot to store and to work with in After Effects let alone 250 - 350GB for 4K.
Now, I'm just debating using 16bit png images instead which should keep the file size reduced significantly. I know EXR's are better though and more flexible so ideally I'd like to learn more about the best way to compress the files and what some people generally do for their workflow.
I did notice that there is a render element VRayOptionRE. I played around a bit with it and was able to reduce the EXR file size a bit, but they were still significantly large. I realize they are going to be larger then .png files basically no matter what I do, but can someone provide some insight into their approach and workflow when it comes to EXR file compression to reduce the overall size without significant sacrifice to image quality.
Thanks!
Apologies if answers to some of my questions here have already been posted in other topics. I've been researching and see that there are a lot of discussions, but even sifting through it all I still have some confusion regarding the best approach for EXR files.
I am working on a 3D animation for a product (approximately 1700 frames total) and have been considering outputting into a multi-channel EXR image for compositing within After Effects. To be honest, I don't need a ton of flexibility in post, but it would be nice to use the cryptomatte and also just have all the passes stored in one file. For this project, I really only have ZDepth, Cryptomatte, Glare, and a few additional passes that are produced from the Denoiser.
The initial test renderings I've done, at a resolution of 1080P are producing 16bit EXR files that range around 40 - 60mb (so lets say an average of 50mb). At 1700 frames that will be a total of about 85GB for the entire sequence. 85GB seems somewhat excessive for a basic 1 min animation, but I guess it really depends on the complexity and I suppose in many cases that may seem small. However, ideally, I'd like to render out at 4K, but then I'm probably looking at an increase of about 3 - 4x the file size and then we get into the range of several hundred GB's of files. 85GB alone is a lot to store and to work with in After Effects let alone 250 - 350GB for 4K.
Now, I'm just debating using 16bit png images instead which should keep the file size reduced significantly. I know EXR's are better though and more flexible so ideally I'd like to learn more about the best way to compress the files and what some people generally do for their workflow.
I did notice that there is a render element VRayOptionRE. I played around a bit with it and was able to reduce the EXR file size a bit, but they were still significantly large. I realize they are going to be larger then .png files basically no matter what I do, but can someone provide some insight into their approach and workflow when it comes to EXR file compression to reduce the overall size without significant sacrifice to image quality.
Thanks!
