Hello, I am trying to bring a scene from UE4 intro Babylon, and the only problem that I have right now is that my lightmaps are not bright enough. I have tried all the settings recommended in the documentation but so far this is the best result that I have got. You can notice that the sunlight in t…

So about the loader, it might be like this: https://www.babylonjs-playground.com/#8EGGW2#7 You could create your RGBD Files like this: https://playground.babylonjs.com/#95Y4D7 replace all your .hdr by the result of this process And then you could reload them as such: let currentLightmap = new…

That’s great! However, it does not help for mimapping, as the texture is still a (half) float texture. To be able to use mipmapping, I think one should not make the BABYLON.RGBDTextureTools.ExpandRGBDTexture(currentLightmap); call and let the shader do the decoding. However, I wonder if the mipmap…

Woa guys, I knew Babylon’s community was famous for being very helpful but I didnt expect this much! @sebavan This seems to be the solution! I am going to test it out and come back with the results, but its going to take me some time, I am still getting use to javascript in general. @Evgeni_Popov …

That’s great! [image] Davidae: This line caused some serious aliasing, does this means now there are no mipmaps or the contrary? Removing the line means you do have mipmapping: with the line you don’t have them. However, it also means a little more work in the shader because the rgbd value …

Probably cause it has only been used with prediltered env always having mipmaps despite not being created manually :slight_smile:

Hey, I am extremely new to Babylon and I found this thread when doing research on displaying residential units. Please forgive me if I am missing something obvious. I am also not sure if I should ask this here or open a new thread :confused: I have a question regarding the display of the used mode…

Not really too sure what you mean by rounded, can you share a screenshot of both circling what you are looking into ? By the way, Welcome to the community, we will find your answer ASAP !!!

Hi there @sebavan We have the very same problem with dark lightmaps. Right now I’m using Nuke in order to tonemap the lightmap to force it fit inside the 0-1 range of 8bit PNG files. You mentioned that RGBD fancy thing and we would want to understand that magic. Investigating a bit, it seems the …

D stands for divisor and you can check the maths in our shaders: sebavan/Babylon.js/blob/master/packages/dev/core/src/Shaders/ShadersInclude/helperFunctions.fx#L174-L197 } // Check if configurable value is needed. const float rgbdMa…

Nevermind, I managed to make it work. I wonder, though, if the resulting PNG can be converted to JPG as I don’t know if JPG supports RGBD formats. Because our converted PNG is like 20mb in size, and that’s pretty much.

No, jpg can’t support RGBD because it does not support an alpha channel (and also because it is a lossy format).

Lightmaps not bright enough

Questions

joie February 16, 2023, 1:31pm 34

It is 4k

RGBD Lightmap banding

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Lightmaps not bright enough

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