Questions tagged [.exr]

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1answer
15 views

When I switch from single to image sequence of an openEXR image sequence in the Compositor Panel, the backdrop disappears

In a new blank scene, I open up the compositor dragging my multilayer OpenEXR sequence in. I can succesfully see a tiniy preview in the Image Node with the correct backdrop, but when I switch from ...
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1answer
23 views

Exr data window in compositing

I try to make image compositing with Blender and my sequence images layers are EXR coming from another software ( Houdini ). Many software use a feature of openEXR call "data window". It's make a crop ...
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0answers
45 views

EXR Artefacts / Lensdistortion STMap to Nuke / 3D Tracking

I bumpt into a STMap artifacts problem In Nuke i generate a plate red (x+0.5)/width green (y+0.5)/height" blue 0 alpha 1 Format is EXR 32bit zip1 In Blender I undistort it ...
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1answer
27 views

save intermediate render result to OpenEXR not working (Cycles/ v.2.79)

I want to render a single frame of a texture and then print it in the measurements 150x266cm at 300dpi, therefore I calculated a render resolution of 31488x17717px, which seems to be a bit of a ...
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0answers
41 views

Compositing multilayer EXR. Some layers are red only (no green or blue)

I rednered my image using Renderman for maya and saved it to Exr File with AOVs. I would like to compose it inb Blender. When I import exr file to compositor, all AOVs are present there but all of ...
1
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1answer
243 views

Cycles OpenEXR output way too dark when imported into After Effects [duplicate]

When I render to OpenEXR (multilayer) in Blender 2.80 (Cycles) and then import it back into After Effects (2019) the image looks way too dark. What it looks like in Blender 2.80: What it looks like ...
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0answers
24 views

Z-combine multiple openExr and render with passes [duplicate]

Lets say I rendered 2 different openexr images with some passes and now I want to z-combine them and save them as 1 openexr image with the same passes, how do I do that? I'm using cycles I tried the ...
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0answers
37 views

Shadow catcher layer in OpenEXR render is solid with no alpha

I'm using Blender 2.79 rendering with Cycles. I've set up a Shadow Catcher plane which appears to be rendering correctly when I do a PNG RGBalpha render. When I try to make an OpenEXR render and ...
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0answers
34 views

Advice on storing EXR

I've rendered a gigantic numbers of scenes, which results in around 22TB (yes, the process took several month-computation and resources). Apparently, I cannot use the EXRs out-of-the-box so I have to ...
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0answers
39 views

How to make the Image Input node process every file in a sequence of OpenEXR or OpenEXR Multilayer .exr files?

My setup i5 2500K processor @ 3.3 GHz and 24GB ram. Using Blender v2.79b I have rendered out a set of 11 frames in OpenEXR and OpenEXR Multilayer format. Each set is produced from rendering a ...
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0answers
34 views

Why has Blender created 250 disp_[number].exr files?

I recently checked my cache files and found that Blender has somehow created 250 .exr files with an image I've never seen before. Has anyone an idea why Blender could have created exactly 250 files of ...
2
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2answers
138 views

Blender depth mystery

I am trying to use the depth values from a render. I created the appropriate graph that directly connects the render layers depth pin to an OpenEXR file output. The problem is that the depth values ...
1
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0answers
150 views

artifacts during compositing using shadow catcher and denoise

I am using Cycles with denoising and filmic Color in Blender 2.79b, the compositing is done in Nuke 11.1v2 non commercial. The renderings are 32 bit linear EXR. The shadow catcher is a large ...
1
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1answer
794 views

Difference between OpenEXR and OpenEXR Multilayer file format?

What's the difference between the two EXR file formats? When should I use one over the other?
4
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1answer
394 views

How can I get rid of the black dots or black pixels in a float 32-bit EXR baked displacement map?

When I bake a 32-bit displacement map, it has these annoying black dots or black pixels in it: How do I get rid of these?
5
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1answer
185 views

Why normalized EXR renderings of surface Normals look different than PNG renderings?

I render surface Normals using Cycles and store the results in EXR format. The values in the EXR format are within the range of [-1, 1] meaning that I cannot ...
2
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1answer
106 views

Why changing camera's far clip does not seem to clip the distance for depth map rendings?

I am rendering depth maps and store the results in OpenEXR format. To make sure things work as expected I loaded one of the renderings into Python using the OpenEXR Python bindings as follow: ...
2
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0answers
32 views

How to handle disabled layers in Multilayer EXR?

I prefer exporting frames in Multilayer EXR with turned off Compositor to save some RAM. When scene involves disabling render layers, Multi EXR just throws them out. Here you can see, that layer "2" ...
2
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1answer
492 views

cycles filmic colormanagement to nuke

I don't seem to be able to bring my filmic EXR to nuke without a shift in brightness or gamma. I'm rendering half (16 bit) and tried to import them in nuke as log. Do I need to customize my projects ...
0
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1answer
53 views

Animation sequence Render Layers + OpenExr

i am trying to render multiple renderPasses, which i know how to do In a sequence, which i know how to do, using MultilayerOpenEXR which i know how to use. But togetger it just aint working. What ...
3
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1answer
618 views

How to save an .exr file with 32 bit with python

I'd like to create a picture in blender and save it as a 32 bit exr. ...
1
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0answers
130 views

blender openexr produces low pixel values

I am rendering few scenes in blender and saving them in openexr image format. I read the exr images using python opencv2, and print out the minimum and maximum pixel values. It is a bit strange that ...
3
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1answer
1k views

Apply filmic color management to an EXR file - post processing in photoshop

I am taking EXR files to photoshop for post processing, but I want the filmic color management applied. Is there a different file format I should be using, or is there a way to apply filmic color ...
0
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1answer
115 views

What is the purpose of a test environment for rendering and where can I get one?

I am learning Blender and I see a lot of videos where people use like "test environments" to test lighting, reflection, etc. Something like this (seen in Blender Guru Video) I was wondering if they ...
2
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1answer
363 views

Cycles save as EXR image

I'm using Blender Cycles to bake the rendering result into the texture. Yet, I've observed that many parts of the texture is over-saturated, but I could only save the resulting texture image into a ...
2
votes
1answer
213 views

How to properly combine Z passes using multiple .EXR files?

I'm having trouble combining openEXRs (rendered with subframes on multiple nodes) containing Z passes in the compositor. Whenever I run 1 subframe into the normalize node I get the correct output. ...
2
votes
1answer
139 views

Rendering multi-layer EXR leaves small gaps between layers [duplicate]

I know this is kinda a hybrid issue, but I think the problem here lies mostly with Blender. I've rendered a multi-layered EXR file of a character I did in Blender to color and adjust it further in ...
1
vote
1answer
539 views

How do you apply colormanagement settings to EXR files?

How do you apply colormanagement settings to EXR files? When i do some color adjustment by using colormanagement and try to save exr file and open it in photoshop it looks like colormanagement ...
1
vote
1answer
882 views

Only render what's visible from camera's view when creating multi-layer EXR?

I've rendered a character in Blender and created a multi-layer EXR, which I want to edit and color in Photoshop. I separately rendered different body parts like arms, shoulder armor, the head etc. ...
4
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1answer
2k views

Saving Z data linearly (accurate depth map)

I want to create a depth map via the node editor by mapping the "Z" of my render to a "Map Value" node with Size 0.05. Basically this scales the depth down to 1/20th of it. When I save the resulting ...
4
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4answers
1k views

convert OpenEXR float to color value

I am exporting a scene to OpenEXR multichannel (with no compression and FULL format) and read it back using Python. Here is the code ...
3
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3answers
2k views

OpenEXR making sense of RGB float values

I rendered and exported a scene with cycles as MultiChannel OpenEXR, then read it back in with OpenEXR binding for Python. The header looks like below. As it indicates, most of the field are floats (...
0
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0answers
90 views

How to name an .exr file?

How do you name an .exr file? I saw how to rename each pass but I couldn't figure out how to name the overall file?
1
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0answers
170 views

Missing passes in .exr? [closed]

I rendered a multichannel .exr with a bunch of passes but when I import it back into Blender I lose two of the passes. I checked in Nuke and the passes are visible there but not in Blender. The ...
1
vote
1answer
1k views

Why is Network Render creating .exr's instead of .png's?

So i have been fighting this 2 days now. As i send job to slave computer on Network render and have told it to use cycles engine, where i have set the default output type to png, it still returns ...
4
votes
1answer
447 views

How can I update a specific layer of a multilayer exr file?

Is it possible to "update" parts of a multilayer exr while retaining other render layers? Let's say I have two layers A and B. I render both layers to the same exr and later I decide to re-render ...
1
vote
1answer
741 views

Export multi-pass .exr image sequence from cycles?

Is it possible to export an image sequence (in this case a sequence of .exrs) from cycles? For example, I have multiple sets of .exrs for different passes I want to combine into one set of .exr image ...
4
votes
1answer
630 views

How do I get pixel by pixel depth data out of a .exr file?

I have been trying to get pixel by pixel depth data out of a .exr file. I am using blender and rendering with Lux Render. I need to get pixel by pixel depth data, and have read that if I use the z-...
2
votes
1answer
2k views

Combining .exr files?

Is it possible to composite multiple .exr files into a single .exr file? For example, if one .exr file contains several passes and another contains only one pass could they be combined to contained ...
1
vote
2answers
702 views

Rendering single .exr from passes with different shaders?

How can a single .exr containing all passes from a scene be created if certain passes have different shaders applied. For example the matte pass might have different color surface shaders while you ...
0
votes
1answer
204 views

.exr file quality options for seperate renders?

When rendering out a scene where all render passes cannot be placed into one .exr file, what is the best alternative for additional passes to be at the same quality level as an .exr? For example: If ...
12
votes
1answer
2k views

How to render a 30K image with cycles?

I have to render an image of 27000 x 7000 for a 150dpi print. The scene is quite big, but cycles preview and a render in 2700x7000 works as expected. If I hit render my memory raises up to 20gb, but ...