[x3d-public] MultiTextureTeapot example using X3D3.3

[Michalis Kamburelis]

Cool!

1. Note that for creating reflective curvy (non-flat) surfaces, I
would advise to not use spherical mapping
(TextureCoordinateGenerator.mode='COORD-EYE') in most cases.

    Instead use cubemaps
(TextureCoordinateGenerator.mode='CAMERASPACEREFLECTIONVECTOR' in any
X3D browser or even better
TextureCoordinateGenerator.mode='WORLDSPACEREFLECTIONVECTOR' specific
in CGE). Cubemaps are easier to generate with many tools (including
CGE itself and Blender), you also have an option to let X3D browser to
make it by "GeneratedCubeMap". The description of the setup is on
https://castle-engine.io/x3d_implementation_cubemaptexturing.php ,
"Tutorial: How to make a mirror". The general idea is similar, you
just use a different "TextureCoordinateGenerator.mode" and need a
different texture.

2. Note that in Castle Game Engine and Instant Reality you can also
use "Teapot" node (thus you don't need to provide teapot geometry
explicitly in "IndexedFaceSet"). Admittedly this was just done as it
was trivial to do within CGE, I would never propose to make this
primitive type standard (way too obscure usage) :)

Regards,
Michalis

czw., 27 maj 2021 o 17:26 Don Brutzman <brutzman at nps.edu> napisał(a):
>
> Interesting new example with magnificent rendering is now published, adapting work by Michalis Kamburelis and contributed by Rick Lentz, authored using X3D-Edit 4.0 beta.  Screenshot of examples index page attached.
>
> =========================================================
> * X3D Example Archives: X3D4AM, X3D for Advanced Modeling, Texture Mapping, Multi Texture Teapot
>    https://x3dgraphics.com/examples/X3dForAdvancedModeling/TextureMapping/MultiTextureTeapotIndex.html
>
> MultiTextureTeapot X3D example uses texture, material and TextureCoordinateGenerator properties provided by Castle Game Engine example model, applied to the Newell Teapot geometry. Also added X3D logo for coolness!
> =========================================================
>
> Four successful renders with stellar performance:
>
> * X_ITE and Castle Game Engine are both fully consistent
> * X3DOM has texture coordinate mapping difference
> * H3DViewer has creaseAngle seams (but looks great)
>
> Not yet:
> * FreeWrl didn't show texture mapping
> * Xj3D no textures but didn't crash (slowly making progress!)
>
> https://x3dgraphics.com/examples/X3dForAdvancedModeling/TextureMapping/MultiTextureTeapotX_ITE.html
> https://x3dgraphics.com/examples/X3dForAdvancedModeling/TextureMapping/MultiTextureTeapotX3dom.xhtml
> https://x3dgraphics.com/examples/X3dForAdvancedModeling/TextureMapping/MultiTextureTeapotView3dScene.png
> https://x3dgraphics.com/examples/X3dForAdvancedModeling/TextureMapping/MultiTextureTeapotH3DViewer.png
> https://x3dgraphics.com/examples/X3dForAdvancedModeling/TextureMapping/MultiTextureTeapotX3dEditXj3d.png
>
> Pretty promising warmup exercise on the way to X3D4 and physically based rendering (PBR)...
>
> Each of the models in Web3D Consortium's X3D Examples Archive are provided under an open-source license.
>
> Further scrutiny and improvements welcome.  Have fun with X3D!  8)
>
> all the best, Don
> --
> Don Brutzman  Naval Postgraduate School, Code USW/Br       brutzman at nps.edu
> Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA   +1.831.656.2149
> X3D graphics, virtual worlds, navy robotics http://faculty.nps.edu/brutzman
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