Hi there @sebavan Continuing my lightmap generation journey starting here I made two lightmaps from two scenes with the Lightmapper addon for Blender. Two rooms with similar lighting, although one of them has some warmer lights. Each maps generated in .HDR format and saved in 2k resolution (orig…

Here’s what I end up with when encoding the .hdr file to .png using the code from @sebavan ( https://playground.babylonjs.com/#95Y4D7#10 ) with the splice fix: [image] With this picture, the rendering is ok, assuming you set myLightmapTexture.isRGBD = true. Applying tone mapping is a must too. Not…

I guess there is something wrong in the source HDR file that prevents it from creating correct result

Do you have the original .hdr file for us to look at? I don’t really understand the large black areas you have in the .png file…

Yep, here you are: https://dl.dropbox.com/s/rt3dk5k8mhqlwv8/Dormitorio_v2_2k.hdr

For comparison purposes, you can check the source HDR file for the other lightmap that generates correctly in RGBD format here: https://dl.dropbox.com/s/0kdvl62e9awy5d3/Salon_lightmap.hdr

Yep, the flickering comes from the fact that there are several versions of the same room in the same place, we are showing each one via code, everything is fine then. So, what is the complete correct code I must use to convert the images to HDR then and why I didn’t have to do anything with the oth…

Use the link I have given above to convert a .hdr to .png file ( https://playground.babylonjs.com/#95Y4D7#10 ): that’s what I used to do the conversion myself. I don’t know what you did to convert the .hdr to .png files, so I can’t tell why it worked for one file and not for the other.

Thank you very much. I’ll send feedback when tested. Cheers.

It really would be great if RGBD png files coulb be exported from softwares like Photoshop or Nuke (Nuke is great for channels manipulations and saving, so I guess it could create such files without problem)

In the end, you might have struggled with it a little :sweat_smile: :wink: but then, know that (in my opinion) the result looks just beautiful. :heart_eyes: GJ,

Thank you @mawa for your kind words. OK, I remade the lightmap with better quality and put the " myLightmapTexture.isRGBD = true" line. So, with a tonemapping set to “Standard” it looks like this: [imagen] And here with “ACES”: [imagen] It looks darker with ACES, I like Standard more. It’s …

RGBD Lightmap banding

Questions

mawa February 20, 2023, 2:17pm 13

In the end, you might have struggled with it a little but then, know that (in my opinion) the result looks just beautiful. GJ,

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RGBD Lightmap banding

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