This repository contains some utils to sample RGB and Depth images of custom scenes with editable methods. You can use it to sample your own custom virtual scenes to get datasets for training, such as 3DGS.
To use this, you can use git clone https://github.com/ReV3nus/UnityRGBDepthSceneSampler.git and move all the files to your own unity projects.
Currently supported for Built-in Render Pipeline(BiRP) and High Defination Render Pipeline(HDRP).
You should create two GameObjects to sample the scene.
One of these could be an empty object. It acts as the sample center, so you should wether drag it in scene or modify its transform.
The other should be attached with RGBDSampler.cs. Here's what it looks like:
For the Sample File Settings and Camera Sample Params, you can modify them freely as you want. Except the sample center should be the GameObject that mentioned above.
For the Rendering Pipeline Settings, you should set Rppl to BiRP and bind BiRP Depth Material to this projects' Materials/BiRPDepthMaterial.
After finished your settings, you can press Capture Current View to capture the RGB and Depth image of current camera view, or you can press Manual Sample Scene to sample your custom scene following methods defined in ManualSampleScene() Function of the script, which you can modify as well.
For the HDRP, most of the settings are in same way as BiRP. But the different thing is that you should create another GameObject and bind it into the HDRP Depth Volume.
To create the correct GameObject, you can first create an empty one. After that, add a Custom Pass Volume component to it and set it to this:
The HDRPDepthMaterial in above is also included in the Material Folder.
Currently, I haven't implemented it in Universal Render Pipeline(URP). This might be a future work.