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Re: HDR Probe Render settings

I wasn't trying to lecture you at all, I'm actually asking you to lecture me with asking you technical questions :) I wanted to know if, in general, you use ND filters to capture very high dynamic range probes, or if you use low dynamic range probes with sunlight created in the 3d software. I didn't...
by chafouin
Mon Jan 27, 2014 11:35 pm
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

Ok, you lost me :) How do you get proper sunlight intensities from an IBL with such a "low" dynamic range? That's where sIBL is interesting, you actually setup the sun position and intensity in sIBL then export the rig to your 3d software. The IBL is used for ambient lighting which is more...
by chafouin
Mon Jan 27, 2014 10:51 pm
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

But you never shoot something else than sunsets?! You are a romantic guy ;)
by chafouin
Mon Jan 27, 2014 10:28 pm
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

I never use ND filters for bracketed shooting - why would i?? The reason for shooting bracketed is to shoot an extremely wide danamic-range. Using ND-filters would definitely be counterproductive. Klaus Because with 12EV dynamic range, you don't get the full range of the sunlight. Even with 20EV yo...
by chafouin
Mon Jan 27, 2014 10:09 pm
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

Interesting information, I never put names on the different techniques, I just used them depending on what I wanted to achieve :) At the moment I use Redshift, this is a hell of a renderer. It has a dome light similar to IBL lighting in Mental ray and Vray. In games it's a bit different, you can't u...
by chafouin
Mon Jan 27, 2014 8:44 pm
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

Yes I use them as IBL. What do you mean by GL?
And what do you mean by the depths of the shadows? You mean the shadow blurriness?
by chafouin
Mon Jan 27, 2014 6:38 pm
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

I think the problem with clamping / flattening artifacts I'm getting is coming from only 1 picture, that's because lighting changed when I took the exposures, because of clouds. So to summarize: 1) import brackets in APP 2) stitch them 3) No color correction! 3) render them with any settings to EXR ...
by chafouin
Mon Jan 27, 2014 3:09 pm
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

Just wanted to add that PTGui has is correct with their "True HDR", so I really think Kolor should have a look at this issue, they must be losing lots of VFX professionals here...
by chafouin
Mon Jan 27, 2014 11:42 am
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

I still think you're talking about tonemapping, Destiny, when you talk about processing the images. In theory, merging to 32bits files should be "identical" in every software, with just small differences like aligning and removing ghosts, and response curve choice. I've tried several softw...
by chafouin
Mon Jan 27, 2014 10:24 am
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

I continued my tests and tried the "render layers in APP then merge them to HDR" method. It does work but you get some weird color clamping / banding / flattening in some parts of the image, not even in the hightlights or shadows, but on some surfaces... I actually noticed the same with th...
by chafouin
Mon Jan 27, 2014 10:01 am
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

This is going into too much details about what I'm doing, and I am under NDA so I won't answer that ;) Let's just say I am a pixel peeper, I just want to get the best output I can, biggest range with high resolution :) Thanks for your input marzipano. I use hard links as I used a tripod, so I don't ...
by chafouin
Sat Jan 25, 2014 3:11 pm
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

Chafouin is a nickname ;) Yes I know about sIBL, I used it in the past in maya. Also tried HDRLight Studio, but that's not really my field, I work in games. I'm asking about the EXIF because when merging in LuminanceHDR or Photoshop, it analyzes the EXIF data to know about the exposure values. It co...
by chafouin
Sat Jan 25, 2014 2:43 pm
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

Very interesting Klaus, I'll try that on Monday! Destiny: you can render layers, there is a checkbox for that in the render settings. They should have the same stitching information from the reference layer, so they should match (hopefully the blending would be identical as well). I'll give it a go ...
by chafouin
Sat Jan 25, 2014 12:05 pm
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

Yes, APP can create proper 32bits HDR files for lighting, they are correct when using Simple blending (linear + diamond). The problem is that they are a bit blurry, but also you get a lot of overlapping blurred parts because the distorsion of some images are of course not 100% corrected. The way I s...
by chafouin
Sat Jan 25, 2014 1:06 am
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

Sorry, I wasn't clear, but that's what I tried. When I said antighost, I actually meant Multiband. HDR color correction + HDR output (multiband level -2) give halos around the objects. Reducing it to lvl -8 removes the halos but then you see the blending differences between the images. Level -2 comp...
by chafouin
Fri Jan 24, 2014 3:02 pm
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

In the end, I think the problem is that the Multiband (corrected) works on a picture level and not a layer level. Is there a way to change that? That would be nice to have an input from the developers.
by chafouin
Fri Jan 24, 2014 2:37 pm
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

I know people who use bracketed images in PTGui and didn't report any issues with it's TrueHDR output though, I thought APP would have a similar render, as I find it more professional. I have 36GB of ram so that's not limiting me, I have 126 bracketed images (14 positions with a 14mm rectilinear len...
by chafouin
Fri Jan 24, 2014 1:29 pm
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

So I merged the brackets into 32bits HDR files, and then stitched them in APP, and the results with Antighost level -2 are great, no halos around the edges. The colors are also more accurate, with the brackets APP was making a very saturated output file (but the 32bits HDR I made in LuminanceHDR are...
by chafouin
Fri Jan 24, 2014 12:25 pm
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

I don't know why but the HDR color mode is greyed out, so I can't choose it when following this workflow...
by chafouin
Fri Jan 24, 2014 11:17 am
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

I'm trying right now, following this worflow http://www.autopano.net/wiki-en/action/ ... low_case_E
I'll let you know how it goes, thanks for your help.
by chafouin
Fri Jan 24, 2014 11:03 am
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

I want proper HDR 32 bits with full depth for 3d lighting, using Exposure Fusion will tonemap my image, which is not what I want. I've tested creating HDR files before stitching, it's a possibility but it's creating new files and taking disk space, while the HDR merging results from bracketed images...
by chafouin
Fri Jan 24, 2014 10:45 am
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Re: HDR Probe Render settings

Thanks Destiny. I've done all that already, and made sure to remove the auto color correction. The images only have Adjust Gamma, and the pano stitching are fine, it's just with the render settings that I'm struggling. In the wiki it's written to use antighost, but it can't say it's giving me the pr...
by chafouin
Fri Jan 24, 2014 10:17 am
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

HDR Probe Render settings

Hello, Does anyone have any advice for proper HDR probe rendering? I've tried pretty much everything. By default, the Antighost with level -2 create halos around the edges of the objects, and also alter completely the brightness of some pixels, making in it not correct for HDR. Antighost with level-...
by chafouin
Fri Jan 24, 2014 9:55 am
 
Forum: Using Autopano Pro / Autopano Giga
Topic: HDR Probe Render settings
Replies: 68
Views: 6723

Memory usage setting

Hello, I am pretty annoyed by the fact that the memory usage related to the memory that was available when the software was opened. I ended up using only 5GB of my 36GB because I opened the software while I was working on Photoshop. And it forces me to kill Autopano, and reopen it to get more memory...
by chafouin
Wed Jan 22, 2014 2:44 pm
 
Forum: Autopano - Bugs & discussion
Topic: Memory usage setting
Replies: 1
Views: 806

Re: Force white balance when importing

Yeah but why is it better to do that? I'm doing tests to remove vignetting before the stitching and see minimal differences in the results. I read somewhere we shouldn't sharpen before stitching (surely makes control points harder to find). Removing distorsion crops your image, and I prefer to have ...
by chafouin
Tue Jan 14, 2014 4:03 pm
 
Forum: Autopano Future
Topic: Force white balance when importing
Replies: 2
Views: 1579
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