About the test images

[InFistLee]

Thanks for the tool which really helps a lot!

I wonder is there anyway to generate test rendering images together with the camera pose? I found that only testing camera information is generated, which makes me unable to calculate the metrics like PSNR when rendering on test camera pose. Is there a way that I can get these testing images just like the training images?

Thanks!

[InFistLee]

Also, I found that when using COS method, the sampled testing camera pose is actually not on the sphere and pointing to the center of the scene. I guess that the testing poses are randomly sampled unlike training poses, which might be a problem in 360 scene.

[maximeraafat]

Hi @InFistLee, thanks for your interest and questions!

Creating the test renders basically boils down to just rendering the scene from the test camera. You can simply do that by selecting the test camera to be the active one, and then rendering the scene under Render > Render Animation (in the Topbar). Note that by default the rendered images will be stored into the /tmp/ directory, you might want to change that. Pasting the renders into a test folder within the created BlenderNeRF dataset folder should do the trick.

As for the the test poses for the COS method, these will be the camera pose for the selected Camera (highlighted in blue in the screenshot). If you want to have a test camera with poses sampled from the same sphere, you can directly select the BlenderNeRF Camera as active camera in the COS method (visible once you pressed the Camera button under Preview). In order to get different poses for training and testing cameras with the COS method, I would suggest first only rendering training frames with a specific seed, and then only test frames with a different seed.

Let me know if anything is still unclear or if you have further questions!