Lower resolution than expected.

[Aleix0]

The resolution of the Gaussian Splatting capture is lower than expected.

Steps to reproduce the behavior:

1. I have downloaded the plugin for UE5.2 and directly placed the 'XV3dGS' folder into the 'Plugins' folder.
2. After enabling the plugin, the button to import appeared, and I used it to import the .ply file.
3. I imported a .ply with 30,000 points.
4. The resolution of the image is much lower than expected, seems that it's about 1400 instead the 30000 points.

Do you have any suggestions to try to solve this?

Thank you!!

Windows 11
UE 5.2"

[lxk121lalala]

The parameter "pointcloud_image_size" is ambiguous. We will rename it in the next version. Here, it indicates that the number of points in the scene is 1400*1400 = 1,960,000. "From the screenshot, it appears that this phenomenon is caused by the 'spritesize' parameter having too small a value. For now, you can temporarily adjust the 'spritesize' parameter as below. In the next version, we will expose this parameter as a public parameter."

[bellx3]

동일한 ply를 사용해서 적용한 결과 이미지입니다. 언리얼에서의 개선의 여부가 있을까요? 위의 이미지는 언리얼 5.3에서 플러그인을 사용해서 캡처한 장면입니다. 아래의 이미지는 SuperSplat에서 캡처한 장면입니다.

[rpte]

Hello developers, There already an update in terms of quality improvement? Thanks for this amazing plugin for Unreal Engine

[lxk121lalala]

Hello developers, There already an update in terms of quality improvement? Thanks for this amazing plugin for Unreal Engine

Hello, we cannot reproduce the problem of poor quality. If it is convenient, please provide a test sample.

[rpte]

Just used the samples from https://repo-sam.inria.fr/fungraph/3d-gaussian-splatting/datasets/pretrained/models.zip

[lxk121lalala]

Just used the samples from https://repo-sam.inria.fr/fungraph/3d-gaussian-splatting/datasets/pretrained/models.zip

This behavior is as expected because the original scene contains an excessive number of points, while Niagara in UE (Unreal Engine) supports a maximum of 2 million points for simultaneous rendering. Therefore, our plugin generates LODs automatically to ensure that the scene's simultaneously rendered point count does not exceed 2 million. In our future versions, we will introduce support for dynamically adjusting LODs based on the viewpoint. This will allow for more visible points within the view frustum (but still capped at 2 million).

[rpte]

What if it's made in multiple Niagara assets? so it can pass the limit?

[LoneDev6]

I think it's related to spherical harmonics loading not being implemented in the plugin.