Search
-
Which PBR is actually PBR?
left is Painter with specular quality Ultra and is same sbsar material (color and roughness) exported from Designer. Same "panorama" environment with same exposure value . Painter in "low" settings makes it identical to Designer. So which is actually Physically based for real ? What matches Unreal currently ? Does anyone… -
Re: Which PBR is actually PBR?
For real? Both Matches Unreal? Let us know. Any idea? Somewhat. Every real-time render is opinionated, they all make tradeoffs. Also, PBR shaders all have different approximations, because PBR is not a perfect science. It’s much much better than the old Diffuse/Specular/Guessing method. But it’s still open to… -
Re: Which PBR is actually PBR?
You can check it yourself just by changing specular quality parameter in Painter . Default "low" looks same as in Designer. Ultra makes any material shine a lot. Especially in mid grey roughness values. Imo correct intensity and spread of highlight spot is basically main feature why we once switched to PBR pipline, right?… -
Re: Which PBR is actually PBR?
Well. Looks like it same shader there . What's different is "low" 4 spp vs "Ultra" 255 spp . My guess spp is samples per pixel. Not sure I still understand why it produces so drastically different shine . And why at all it should be based on number of samples in real time shader. -
Re: Which PBR is actually PBR?
Thank you Eric -
Re: Which PBR is actually PBR?
The last three at the bottom here. Can’t find the docs though https://github.com/KhronosGroup/glTF-Sample-Environments -
Re: Which PBR is actually PBR?
Do you mean they just paint the sun there with what they believe right intensity and in random height /angle ? Looks like so actually . I see sort of stamped in sun disk , too big for actual sun and have zero corona around. What would be properly calibrated HDRi? Is there a way to distinguish them? With "calibration" do… -
Re: Which PBR is actually PBR?
The panoramas supplied with painter are fudged rather than properly calibrated so you'll be eyeballing it -
Re: Which PBR is actually PBR?
Amazon also shares a calibrated set of studio HDRs, I’ll see if I can find the public link. They’re a bit overlit for my tastes, a ton of bounce so it’s a bit difficult for judging shading. But they’re purposefully grayscale so no color cast. -
Re: Which PBR is actually PBR?
Thanks a lot poopipe
14 results