[x3d-public] X3D4 PBR specification review: updates and demos
Andreas Plesch
andreasplesch at gmail.com
Tue Mar 3 19:54:02 PST 2020
wow, great progress !
https://github.com/x3dom/x3dom/blob/master/src/nodes/Shape/PhysicalMaterial.js
has x3dom's PhysicalMaterial which largely is consistent and may not need
too much work to make compliant with the finalized definition.
I think I did notice that x3dom has some additional fields which were
necessary for full gltf support. We likely discussed that and either
thought these were outside the scope or should go into some other node. But
I do not want to distract.
On a gltf related note, x3dom has BufferGeometry for gpu-friendly,
efficient binary geometry storage. The path to bring this into the spec.
may be to wait after gltf inline is more widely adopted. gltf inline will
internally require dealing with such a geometry format. From there it
should be a more digestable step to formalize a suitable node.
On Tue, Mar 3, 2020, 8:54 PM <x3d-public-request at web3d.org> wrote:
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> Today's Topics:
>
> 1. Re: X3D4 PBR specification review: updates and demos
> (Michalis Kamburelis)
> 2. Re: X3D4 PBR specification review: updates and demos (GPU Group)
> 3. Re: X3D4 PBR specification review: updates and demos
> (Michalis Kamburelis)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 4 Mar 2020 01:01:56 +0100
> From: Michalis Kamburelis <michalis.kambi at gmail.com>
> To: GPU Group <gpugroup at gmail.com>
> Cc: Don Brutzman <brutzman at nps.edu>, X3D Graphics public mailing list
> <x3d-public at web3d.org>
> Subject: Re: [x3d-public] X3D4 PBR specification review: updates and
> demos
> Message-ID:
> <
> CAKzBGZPgxUfkv27NEnp6De+TJ3_BJ4d4TinzeAKhTN-WnHtn+g at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
> GPU Group <gpugroup at gmail.com> wrote:
> >
> > Michalis,
> > Q1. I downloaded today view3dscene_3.18.0-win64-x86_64.zip and
> master/pbr and ran all the samples and some seemed to work but this
> particular sample all the teapots looked normal and shiny - does that mean
> it couldn't find the material images?
>
> Tested, confirmed:
> For some (unknown for now) reason, Jenkins didn't update the
> view3dscene in snapshots (
> http://michalis.ii.uni.wroc.pl/view3dscene-snapshots/ ) after recent
> merge of PhysicalMaterial implementation to CGE master. I kicked it
> manually now. Thanks for reporting!
>
> Fixed:
> Please get the latest view3dscene from
> http://michalis.ii.uni.wroc.pl/view3dscene-snapshots/ -- now
> everything should work :)
>
> Tested:
> ```
> curl
> http://michalis.ii.uni.wroc.pl/view3dscene-snapshots/view3dscene-3.18.0-win64-x86_64.zip
> -o v.zip
> unzip v.zip
> cd view3dscene/
> ./view3dscene.exe pbr/physical_material/metallic_roughness.x3dv
> ```
>
> -> this is the best way to use Windows :) But you can also download
> through a browser like a normal human being :)
>
> > Q2. what if I'm a 'community member' of web3d -the free membership- is
> there a way I can log in and get the pull?
>
> If you're a community member, then I think you should be able to
> access -- someone just has to give you permissions to access
> https://github.com/Web3DConsortium/X3D/ . GitHub permissions are not
> automatically synchronized with the Web3D membership status, as far as
> I know.
>
> Don will hopefully answer better here.
>
> >From my side, I really really want Doug to see my PR :) (But please
> bear in mind that it's work-in-progress, substantial edits are
> incoming, at 13th of March I hope to make it more-or-less-complete :)
> ).
>
> Regards,
> Michalis
>
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 3 Mar 2020 17:36:53 -0700
> From: GPU Group <gpugroup at gmail.com>
> To: Michalis Kamburelis <michalis.kambi at gmail.com>
> Cc: Don Brutzman <brutzman at nps.edu>, X3D Graphics public mailing list
> <x3d-public at web3d.org>
> Subject: Re: [x3d-public] X3D4 PBR specification review: updates and
> demos
> Message-ID:
> <
> CAM2ogRdwSQZzn+hfhLXL+73CCP6PC5AHtS3xYO_Ta1hnSMux2A at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> OK thanks and the curl got the right one, renders like your screenshot now
> thanks very much Michalis.
> (but if I went back through something else then (some cache somewhere,
> maybe local) would give me the older/stale version )
>
> I looked at the sample files and from that I inferred the following nodes
> and fields (which I assume are subject to change)
>
> PhysicalMaterial
>
> baseColor SFVec3f
>
> baseTexture SFNode {ImageTexture,...}
>
> baseTextureChannel SFInt32 0
>
> normalTexture SFNode {ImageTexture...}
>
> normalTextureChannel SFInt32 0
>
> roughness SFFloat
>
> metallic SFFloat
>
> transparency SFFloat 0
>
>
>
> Material
>
> diffuseTexture SFNode {ImageTexture
>
> diffuseTextureChannle SFInt32 0
>
> ambientTexture SFNode {ImageTexture}
>
> ambientTextureChannel SFInt32 0
>
> specularTexture SFNode {ImageTexture}
>
> specularTextureChannel SFInt32 0
>
> normalTexture SFNode {ImageTexture...}
>
> normalTextureChannel SFInt32 0
>
> emissiveTexture SFNode {ImageTexture...}
>
> emissiveTextureChannel SFInt32 0
>
> shininessTexture SFNode {ImageTexture...}
>
> shininessTextureChannel SFInt32 0
>
> //you still have normal material fields
>
> diffulseColor SFvec3f
>
> emissiveColor SFVec3f
>
> specularColor SFVec3f
>
> shininess SFFloat 1.0
>
>
> Can I start with this? I don't think it will take long to re-vamp if the
> fields and nodes change.
>
> Q. Is there any etiquette/constraint about using the same image dimensions
> for each material/physicalMaterial texture, perhaps relating to conserving
> GPU samplers by using samplerArray?
>
> Thanks,
>
> Doug
>
>
>
> On Tue, Mar 3, 2020 at 5:03 PM Michalis Kamburelis <
> michalis.kambi at gmail.com>
> wrote:
>
> > GPU Group <gpugroup at gmail.com> wrote:
> > >
> > > Michalis,
> > > Q1. I downloaded today view3dscene_3.18.0-win64-x86_64.zip and
> > master/pbr and ran all the samples and some seemed to work but this
> > particular sample all the teapots looked normal and shiny - does that
> mean
> > it couldn't find the material images?
> >
> > Tested, confirmed:
> > For some (unknown for now) reason, Jenkins didn't update the
> > view3dscene in snapshots (
> > http://michalis.ii.uni.wroc.pl/view3dscene-snapshots/ ) after recent
> > merge of PhysicalMaterial implementation to CGE master. I kicked it
> > manually now. Thanks for reporting!
> >
> > Fixed:
> > Please get the latest view3dscene from
> > http://michalis.ii.uni.wroc.pl/view3dscene-snapshots/ -- now
> > everything should work :)
> >
> > Tested:
> > ```
> > curl
> >
> http://michalis.ii.uni.wroc.pl/view3dscene-snapshots/view3dscene-3.18.0-win64-x86_64.zip
> > -o v.zip
> > unzip v.zip
> > cd view3dscene/
> > ./view3dscene.exe pbr/physical_material/metallic_roughness.x3dv
> > ```
> >
> > -> this is the best way to use Windows :) But you can also download
> > through a browser like a normal human being :)
> >
> > > Q2. what if I'm a 'community member' of web3d -the free membership- is
> > there a way I can log in and get the pull?
> >
> > If you're a community member, then I think you should be able to
> > access -- someone just has to give you permissions to access
> > https://github.com/Web3DConsortium/X3D/ . GitHub permissions are not
> > automatically synchronized with the Web3D membership status, as far as
> > I know.
> >
> > Don will hopefully answer better here.
> >
> > From my side, I really really want Doug to see my PR :) (But please
> > bear in mind that it's work-in-progress, substantial edits are
> > incoming, at 13th of March I hope to make it more-or-less-complete :)
> > ).
> >
> > Regards,
> > Michalis
> >
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> ------------------------------
>
> Message: 3
> Date: Wed, 4 Mar 2020 02:53:37 +0100
> From: Michalis Kamburelis <michalis.kambi at gmail.com>
> To: GPU Group <gpugroup at gmail.com>
> Cc: Don Brutzman <brutzman at nps.edu>, X3D Graphics public mailing list
> <x3d-public at web3d.org>
> Subject: Re: [x3d-public] X3D4 PBR specification review: updates and
> demos
> Message-ID:
> <
> CAKzBGZM+6ZA515h9R0y7_qJ7kpfZK_Gi5qUPDhptD2tAQ7OaNQ at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
> The new nodes and fields are visible publicly in a concise way in CGE
> repo already:
> https://github.com/castle-engine/castle-engine/tree/master/tools/internal/x3d-nodes-to-pascal/nodes-specification
> . So you don't have to guess them looking at examples :)
>
> Look into Shape.txt (
>
> https://github.com/castle-engine/castle-engine/blob/master/tools/internal/x3d-nodes-to-pascal/nodes-specification/Shape.txt
> ) for most additions. Look there for
>
> - X3DOneSidedMaterialNode
> - Material
> - PhysicalMaterial
> - UnlitMaterial
>
> These files are used to autogenerate some Pascal CGE code, so the
> things written there reflect the CGE implementation. So it is tested.
>
> They are indeed subject to some change. At least:
> - xxxTextureChannel may change to be a string, and the way it works may
> change.
> - X3DOneSidedMaterialNode will be removed, the new fields will be just
> at X3DMaterialNode (I initially thought that X3DOneSidedMaterialNode
> is indeed, but after many talks about ""what to do with 2-sided
> materials" it seems it is not necessary).
> - shininessTexture and specularTexture will most likely merge into
> just "specularShininessTexture" (with shininess in alpha).
>
> Regards,
> Michalis
>
> ?r., 4 mar 2020 o 01:37 GPU Group <gpugroup at gmail.com> napisa?(a):
> >
> > OK thanks and the curl got the right one, renders like your screenshot
> now thanks very much Michalis.
> > (but if I went back through something else then (some cache somewhere,
> maybe local) would give me the older/stale version )
> >
> > I looked at the sample files and from that I inferred the following
> nodes and fields (which I assume are subject to change)
> >
> > PhysicalMaterial
> >
> > baseColor SFVec3f
> >
> > baseTexture SFNode {ImageTexture,...}
> >
> > baseTextureChannel SFInt32 0
> >
> > normalTexture SFNode {ImageTexture...}
> >
> > normalTextureChannel SFInt32 0
> >
> > roughness SFFloat
> >
> > metallic SFFloat
> >
> > transparency SFFloat 0
> >
> >
> >
> > Material
> >
> > diffuseTexture SFNode {ImageTexture
> >
> > diffuseTextureChannle SFInt32 0
> >
> > ambientTexture SFNode {ImageTexture}
> >
> > ambientTextureChannel SFInt32 0
> >
> > specularTexture SFNode {ImageTexture}
> >
> > specularTextureChannel SFInt32 0
> >
> > normalTexture SFNode {ImageTexture...}
> >
> > normalTextureChannel SFInt32 0
> >
> > emissiveTexture SFNode {ImageTexture...}
> >
> > emissiveTextureChannel SFInt32 0
> >
> > shininessTexture SFNode {ImageTexture...}
> >
> > shininessTextureChannel SFInt32 0
> >
> > //you still have normal material fields
> >
> > diffulseColor SFvec3f
> >
> > emissiveColor SFVec3f
> >
> > specularColor SFVec3f
> >
> > shininess SFFloat 1.0
> >
> >
> > Can I start with this? I don't think it will take long to re-vamp if the
> fields and nodes change.
> >
> > Q. Is there any etiquette/constraint about using the same image
> dimensions for each material/physicalMaterial texture, perhaps relating to
> conserving GPU samplers by using samplerArray?
> >
> > Thanks,
> >
> > Doug
> >
> >
> >
> > On Tue, Mar 3, 2020 at 5:03 PM Michalis Kamburelis <
> michalis.kambi at gmail.com> wrote:
> >>
> >> GPU Group <gpugroup at gmail.com> wrote:
> >> >
> >> > Michalis,
> >> > Q1. I downloaded today view3dscene_3.18.0-win64-x86_64.zip and
> master/pbr and ran all the samples and some seemed to work but this
> particular sample all the teapots looked normal and shiny - does that mean
> it couldn't find the material images?
> >>
> >> Tested, confirmed:
> >> For some (unknown for now) reason, Jenkins didn't update the
> >> view3dscene in snapshots (
> >> http://michalis.ii.uni.wroc.pl/view3dscene-snapshots/ ) after recent
> >> merge of PhysicalMaterial implementation to CGE master. I kicked it
> >> manually now. Thanks for reporting!
> >>
> >> Fixed:
> >> Please get the latest view3dscene from
> >> http://michalis.ii.uni.wroc.pl/view3dscene-snapshots/ -- now
> >> everything should work :)
> >>
> >> Tested:
> >> ```
> >> curl
> http://michalis.ii.uni.wroc.pl/view3dscene-snapshots/view3dscene-3.18.0-win64-x86_64.zip
> >> -o v.zip
> >> unzip v.zip
> >> cd view3dscene/
> >> ./view3dscene.exe pbr/physical_material/metallic_roughness.x3dv
> >> ```
> >>
> >> -> this is the best way to use Windows :) But you can also download
> >> through a browser like a normal human being :)
> >>
> >> > Q2. what if I'm a 'community member' of web3d -the free membership-
> is there a way I can log in and get the pull?
> >>
> >> If you're a community member, then I think you should be able to
> >> access -- someone just has to give you permissions to access
> >> https://github.com/Web3DConsortium/X3D/ . GitHub permissions are not
> >> automatically synchronized with the Web3D membership status, as far as
> >> I know.
> >>
> >> Don will hopefully answer better here.
> >>
> >> From my side, I really really want Doug to see my PR :) (But please
> >> bear in mind that it's work-in-progress, substantial edits are
> >> incoming, at 13th of March I hope to make it more-or-less-complete :)
> >> ).
> >>
> >> Regards,
> >> Michalis
>
>
>
> ------------------------------
>
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