Question regarding use of pre-lens distortion compensated image sets

Hello.
I'm trying to use RC for preparing some good references for vehicle game asset modeling.
Mostly front, side, back view of a car and various perspective view with matching cameras.
I could have just use some blueprints, but most of the cars that I want to model doesn't have any good blueprint. And I'm pretty happy with the result but would like to more about this.

My question is that should I use lens corrected images that are processed in the third party editing software.
Like lightroom or sony imaging edge.
I tried both image sets.
- First : original images
- Second : lens distortion compensated images in Sony Imaging Edge with couple of setting tweaks (details below)

First one was just drag and drop job following this awesome video guide from your team.
https://www.youtube.com/watch?v=yq0XjvBlsiU
And it looks quite amazing considering my lack of shooting skill, sunny weather, and high glossy object like this.
I used 49 images here.
However, the texture looks somewhat blurry here and there like panel gaps and parking line.
And most importantly the camera alignment and the model is a little bit off here. like the picture below.

Second one, I used lens corrected images and changed following settings in image settings.
- Prior lens distortion ; lens group=-1, Prior=Fixed, Camera Model=No lens distortion
which result in
- Registration lens distortion ; Camera Model=No lens distortion
and I keep the export settings like this (same as the first attempt)

image settings

export settings

The result model looks convincing, from the side, front, rear view.
And the background image and the model aligns a lot better in the certain camera view.

But I thought it could be just a illusion. And I actually saw that it's not recommended to use lens corrected images in the first place, but in some cases it could be useful.

So maybe you could show me your thought on this workflow(?)
Because I couldn't find any example of using pre lens corrected images on the web.

Thanks in advance.

Regards,
Lee

Wallace Wainhouse CR

March 31, 2021 11:32

Hi Doritos4207,

Have you tried clicking align for a second time? if so how does this compare to your method?

Doritos4207

March 31, 2021 11:53

Hey Wallace Wainhouse CR
I don't understand what you mean. I tried both method in two separate project files.

March 31, 2021 12:23

Hi,

This is a great discovery, especially being corrected in a third party software. We would still recommend leaving the images distorted, as a rule. I was wondering if you had tried aligning twice with the distorted images, and how this compared with the method using corrected images? You just click alignment again after it finishes the first time. It might not help with something this shiny.

March 31, 2021 12:57

Wallace Wainhouse CR
Oh I actually tried that accidentally, but there was not much difference.

Question regarding use of pre-lens distortion compensated image sets

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