igorposavec

Hello Tom thank you for your feedback. It seems i do not understand the workflow: you want to open file with crytomatte and it opens slower (what is logical, since many extra layers need to be rendered in PS). And because it is slower, you switch to V1, which can not load Cryptomatte layers at all (which is faster, because there is no support in V1 for Crytomatte). But you can not then open Crytpomatte info with V1. What did i misunderstand? Why do not open a file with Crytomatte toggle checker OFF? In this case, Cryptomatte wont be included in the loading process? Second and your correct observation: V2 has indeed a different loader procedure then the V1 - we have had two years time to discuss the features with thousands of cg studios and best artists: they main problem was the memory consumption. Therefore we have rewritten the core so one can load gigantic data without crashing computer by compensating it through optimizing memory segments. This causes some slow down in some cases, but it guarantees the image loading. The studios told us they do not give a damn about time (5 seconds or 7 seconds, 40 seconds or 46 seconds) when they can not load the image because there is no enough memory to read and write it as EXR. There is a case in my video-presentation where i load 4 GB file with 30 layers in V2 in 35 seconds. It is mainly slowed down by the speed of my SSD. The 5 seconds lost are... irrelevant. The advantage was i was able to load it in 32GB Ram machine, which did not work well with V1. So, long explanation for a simple sentence: maybe turning off Crytomatte, if you do not need it, can help you. Finally, Exr-IO V1 is obsolete, but still a great piece of software even now in 2019. ps. One more thing: if you drop EXR from Vray, Arnold etc with Cryptomatte-Node, unsorted, unclassified, where each grass blade get one layer, it will generate huge amount of unnecessary layers. Photoshop has the limitation of 8000 layers. My opinion is, although i get sometimes Matte-plates from Hollywood guys with 100+ layers, that one can not work reasonably in PS with 300+ layers. If you have 1000 layers, you did something wrong. From that point on it is a mess. You do not need for each object a mask. Organize them in layers or user-properties: Vray has such a beautiful options for a disciplined workflow, it is amazing to see that even the most complex scene can have at the end only 30 entities thanks best regards

Hi, i just wanted to update the last discussion about Exr and Photoshop compositing of 3d renderings. The new Version of Exr-IO comes now with Cryptomatte support and this should both redefine the workflow as well as speed it up. I hope it can help you in your everyday creative work and job Exr-IO 2.00 https://www.exr-io.com/exr-io-2-00/ 3d-io has released the Exr-IO 2.00, the free OpenEXR plug-in for Adobe Photoshop. The new version of the popular Exr-IO file format plug-in includes support for additional features like cryptomatte decoding, support for mipmaps and ripmaps, reduced memory consumption and numerous quality, compatibility and stability improvements with better error handling. Exr-IO 2.00 aims to be as feature complete as possible to allow users to read and write the full scope of EXR image data wherever possible. https://www.exr-io.com/exr-io-2-00/ enjoy!

Hello to all, i have posted it at the facebook, but since there were a half dozen questions here in forum about how to optimally load OpenEXR files into Photoshop, i would like to add some of our development results for public viewing (even risking advertising, although it is a freeware ). There is an everlasting problem in Photoshop: it does not allow plugin- or external developers to load an image with transparencies (considering alpha channel) and Layers at the same time. In other words, you can load a 3D Image, in this case OpenEXR, as a) SINGLE layer with transparent background or b) layered image (diffuse, reflections, refractions, AO etc) but without Alpha (in the channel list) This was the main discussion in the past in all exrps topics. It is unfortunately the limitation of Adobe SDK, and i don't think they will update it soon (as i can see it lays around dead since 2013). We have done now some workarounds, i think most of limitations can be now somehow excluded... You can get here a free, extensive Photoshop plugin for loading and saving EXR images: www.exr-io.com and use as you wish. I have also put some tutorials at: If you need for your Post-processing and editing in Photoshop advanced compositing features (render passes) then it may be helpfull. Exr-IO supports all OpenEXR features and provides workflow optimizations for Photoshop: * Open and save all channels of the OpenEXR file * Support for Photoshop layer features like blending and opacity * Deep data sample import * Accurate support for chromaticities and color formats * Support for OpenEXR display window specification * Extensive load and save options * Adobe Photoshop 32 and 64 bit versions support (Windows) * Free of charge thanks and if you notice something wrong or have new ideas for your workflow just write it down here, we need always inputs from 3d artists Igor Posavec 3d-plugin.com