Top three spheres on the left should be white, not gray. Two large spheres on the left just below the three should also be white. Model exported from 3ds Max 2018.4 using Max2Babylon 1.3.33 IBL is the Doge courtyard, processed via IBLBaker to create the blurred MIPs for environment lighting. I us…

@echadwick-artist , I dug into what is happening and found a few things. We use Arnold as our ground truth for rendering, a decision we made a while back because we needed to choose how we would approach a perceptual roughness model. We referenced Disney’s principled reflectance model because that is…

@echadwick-artist so it comes from our conversion from harmonics to polynomials and it will be fix by Monday. This will still not appear white at the top but here is how it now looks into babylon: [image] Which is pretty close from the Ray traced render we consider to be the ground truth.

For reference: Fix IBL Diffuse by sebavan · Pull Request #6202 · BabylonJS/Babylon.js · GitHub

It has been all deployed, you can now test in the sandbox and compare before after in the inspector: [image] By toggling the Spherical Harmonics button on and off.

Excellent sleuthing! And thanks for all the hard work on this. This makes me wonder if we should have a default IBL for the Sandbox with a balanced and full range of lighting information, while also not adding color into the ambient lighting. We want to be able to judge the quality of glTF materia…

@PatrickRyan I guess we could found another Default Environment, just wondering if we should use the studio one instead ? I leave those choices to you as I totally suck coming down to artistic decisions :slight_smile:

A studio would be ideal for a default environment. I think most of us are showcasing products or single items for the most part in scenes and those that are not can import a more appropriate environment. Just a ring light and a forward light or something would be perfect for most environments.

I can certainly provide our studio environment for people to test out and see if they want to make it the default environment. The main issue with this environment is that using it as the skybox as well is very distracting, so we would need to make a second skybox that matches the light without bein…

Nice post by @sebavan about this bug :slight_smile: [image] A Tale of a Bug As we march towards our 4.0 release with a strong focus on next gen materials, it is an incredibly busy period where we are all pretty… Reading time: 5 min read

Thanks for the addtion of the point light! Can this be a directional light instead by default, pointing straight down? I think that would be more helpful as an evaluation tool, since it would light assets in a more predictable manner. Multi-step process to move it upwards, can’t get a consistent r…

Sandbox white albedo is gray?

Bugs

echadwick-artist April 26, 2019, 7:12pm 39

If you think that angle works OK, then I’m ok with it. I couldn’t figure out BabylonJS rotation values. Filed a bug here: Sandbox rotation type-in weirdness

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Sandbox white albedo is gray?

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