Hi David,

A lot has changed since 2024.

1. Focus Data

• Do you have focus calibration set up? Was it performed in Aximmetry, or with the Vanishing Point Viper?
• Have you enabled the new Override Focus parameter in the INPUTS panel?
• Also, check whether the Vanishing Point Viper is providing an aperture value. If the value is negative, that could cause issues.
  You should press CTRL and hover over the Control Data pin to peek at the values of Cam Focus, Cam Aperture, and Sensor Size. For example:
  

2. STUDIO Area
You may have either set the Studio's Mask Mode to Off, or you are currently positioned outside and not facing the Studio’s cube (box), which means you won’t see the cube in your view.
First, check that the Mask Mode is set to Normal.
If you're still having trouble, try resizing the studio walls until you see them. Then, use the Base Cam Transform to reposition the cube as needed. Afterwards, you can return the wall sizes to their original values.

Note that the above screenshot is from Aximmetry 2025.3.0, which includes the new Green Area Mode – Curved as an alternative to the Cube. You may wish to try this option, as it can be easier to set up compared to the Cube mode, and the new mode also works with the 3D Clean Plate.

Warmest regards,

• Do you have focus calibration set up? Was it performed in Aximmetry, or with the Vanishing Point Viper?
• Have you enabled the new Override Focus parameter in the INPUTS panel?
• Also, check whether the Vanishing Point Viper is providing an aperture value. If the value is negative, that could cause issues.

Calibration was done through aximmetry camera calibration.

No, but even if I enable this, nothing happens.

VP is not providing apertarue value (f/0.0), so that is probably an issue. How to solve this? This is our calibration profile - 

</AximmetryCameraLensDesc>

It is working in 2024.2.0. so is there any workaround how to get it to work in 2025.2.0?

Regards, David

Hi David,

At this point, I suspect there might be an issue within the Unreal project itself. Also, are you expecting the focus to affect the Billboard? By default, this is not possible. If you are not seeing any focus effect in your scene at all, even outside of the Billboard, let us know.

To further troubleshoot, try checking whether the focus works as expected in other Unreal projects. You could also test using the Aximmetry Blank project. For more information about the Blank project, see: https://aximmetry.com/learn/virtual-production-workflow/obtaining-graphics-and-virtual-assets/creating-content-for-aximmetry-de/preparing-the-unreal-project/#creating-project 

Warmest regards,

I´ve tried override focus and aperture but there is no DoF applying. I´m seeing that FOC is changing while I change values when override focus and also while its unchecked and when I adjust it on lens, but scene is still same. When I override aperture nothing happens. It´s still f/0.0. I´m using fress blank project with some basic shapes. Zoom is working flawlessly without any issues. In UE I have tracked cam BP.

Hi,

I just checked, and even when the Aperture is set to 0, Unreal interprets it as an aperture value of around 3. Therefore, it is unlikely that the Focus is not visible due to the aperture.
However, you should see the overridden Aperture values in the ONSCREEN panel's Lens options (f/...), unless you have other settings enabled in the INPUTS panel that take precedence over the Aperture Override.

A bigger issue is with your calibration file: it seems to be a zoom calibration with only focus values assigned to the zoom calibration points. This is not enough for a Focus calibration. For accurate focus calibration, you need approximately 4–5 focus calibration points for each zoom calibration point. You can add these points in the Basic Calibrator. Since your calibration file contains 6 zoom calibration points (Zoom 20–70), you should have about 30 (6x5) calibration points in total for a precise focus calibration.
For more information, see this guide: https://aximmetry.com/learn/unlisted/for-users/basic-lens-calibration-without-lens-distortion/#focus-encoder 
Because of that, if Focus is not overridden, I observe negative focus values (e.g., "FOC: -1.7m") when using your calibration file. It is impossible that the above calibration file provided accurate focus values in any version of Aximmetry. 
Maybe you were using the Zoom encoder’s raw focus data, as described here: https://my.aximmetry.com/post/2138-vanishing-point-viper-encoders-for-focus 

I recommend trying exactly the following settings. This way, you should see the correct focus values in Aximmetry’s blank project, regardless of the tracking data you’re using:

If you are finally able to see the focus in the scene like that, we can rule out the possibility that the issue lies outside of your calibration file.

You can read more about settings in the image, here: https://aximmetry.com/learn/virtual-production-workflow/green-screen-production/tracked-camera-workflow/inputs-tracked-camera/#override-lens-data 

Warmest regards,

I´m sorry, this file is correct one - https://drive.google.com/file/d/1KE0pAcgMY0MT7-UQG9jycqwrGkD4WX-F/view?usp=sharing

I´ve changed values as you send them to me and still without any depth of field. Even if I override aperture I´m still seeing in aximmetry panel f/0.0.

Now I´m seeing FOV: 61,3/7,3mm l FOC: 0.1m - f/0.0 l CAM 1 l PATH 1

Hi,

I am almost certain the only way for you to see the information parsed like this "FOV: 61,3/7,3mm l FOC: 0.1m - f/0.0 l CAM 1 l PATH 1" with Aximmetry 2025.2.0 is if the camera compound was originally opened in a previous version of Aximmetry. This prevents the camera compound from updating properly.
You should make sure that the camera compound is locked, and you see a chain icon on the compound:

If the camera compound is not locked, you need to update it. To do this, right-click on the camera compound and select Revert In-Place Modifications.
Important: Be sure to back up any changes you made within the camera compound before performing this action.

More about linked compounds here: https://aximmetry.com/learn/virtual-production-workflow/scripting-in-aximmetry/flow-editor/compound/#linked-compound 

Warmest regards, 

Hi, sadly this is not our case. This is fresh installation of 2025 2.0 without any changes of compounds. So there is no option to revert in-place modifications. As you can see in our picture.

Hi,

There is indeed a bug. Within the TrackedCam_Unreal_8-Cam camera compound, the aperture is incorrectly connected. As a result, the focus does not function for any inputs in this camera compound.

To resolve this, you can switch to the TrackedCam_Unreal_3-Cam compound, which does not have this problem.

Or, for example, you are using more than 3 inputs, and you need the TrackedCam_Unreal_8-Cam compound because of that, you can fix the connection manually in the TrackedCam_Unreal_8-Cam compound by following these steps:

Right-click the TrackedCam_Unreal_8-Cam compound and select Edit Compound In-Place:

Then, double-click on the compound to enter it.
Inside the compound, connect the SELECTED CAMERA module's Out pin to the Switch Aperture module's Selected pin.
Then, connect the Aperture pin from INPUT %N=1 to the Value 1 pin of the Switch Aperture module:

Thank you for your patience and for helping us pinpoint this bug.
This issue remains unresolved in Aximmetry 2025.3.0 BETA, but it will be fixed in the final release of 2025.3.0. We apologize for any inconvenience this may have caused.

Warmest regards,

Thanks! That do a trick. Now it finally works :)