[x3d-public] RenderedTexture support

Mon Jan 15 18:09:05 PST 2018

Thanks. The example never finished loading on my lowly moto e.

On a low-end win10 laptop it works fine on chrome and firefox but not
on edge which does not like the cubemaps.

Although the idea is to allow for dynamic reflections, a static
screenshot attached may help as well.

-Andreas

On Mon, Jan 15, 2018 at 8:46 PM, John Carlson <yottzumm at gmail.com> wrote:
> I can confirm it looks like that in gmail on Android 8.1 Nexus 6p.
>
> On Jan 15, 2018 8:28 PM, "Andreas Plesch" <andreasplesch at gmail.com> wrote:
>>
>> Hi Don,
>>
>> thanks for your response. Here is a first round of support links.
>>
>> http://www.xj3d.org/extensions/render_texture.html
>>
>>
>> https://castle-engine.sourceforge.io/x3d_implementation_texturing_extensions.php#section_ext_rendered_texture
>>
>> Castle does not seem to have ComposedCubeMap or GeneratedCubeMap
>>
>> http://doc.instantreality.org/documentation/nodetype/RenderedTexture/
>> was the template for the x3dom node.
>>
>> I suspect freeWrl supports imagecubemaps, probably composedcubemaps,
>> only perhaps generatedcubemaps and renderedtexture.
>>
>> There are good screen capturing web browser extensions which can
>> produce small and large animations, example gif attached.
>>
>> All the best,
>> -Andreas
>>
>>
>> On Mon, Jan 15, 2018 at 7:20 PM, Don Brutzman <brutzman at nps.edu> wrote:
>> > Thanks for the analysis and suggestion.  No this node has never been
>> > proposed for use in X3D.
>> >
>> > I searched and found documentation at
>> >
>> >         X3DOM documentation: Node: RenderedTexture
>> >         https://doc.x3dom.org/author/Texturing/RenderedTexture.html
>> >
>> > "This extension provides the ability to dynamically render a partial
>> > scenegraph to an offscreen texture that can then be used on the geometry
>> > of
>> > a node. This can be used in many different ways such as creating mirror
>> > effects, inputs to shaders etc. The purpose of this component is to
>> > provide
>> > for extended visual effects, but not the complete form of offscreen
>> > rendering and buffers that would be available to lower-level rendering
>> > APIs."
>> >
>> > The fields are quite diverse and utilize multiple parts of a scene.
>> > Some
>> > further composition might be needed, worth closer scrutiny.
>> >
>> > It is certainly interesting to expose this kind of functionality to
>> > scene
>> > authors.  If rendered results might be saved to a file, then it could
>> > also
>> > increase options for interactions within HTML pages.
>> >
>> > The interpupillary distance field looks like something we would defer to
>> > X3D
>> > v4.1 for Mixed Augmented Reality (MAR) VR/AR applications.
>> >
>> > It would be great if someone wanted to lead the effort to add this node,
>> > and
>> > perhaps closely related nodes.
>> >
>> > On 1/16/2018 7:39 AM, Andreas Plesch wrote:
>> >>
>> >> Dear group,
>> >>
>> >> x3dom has a RenderedTexture node which very useful. Prompted by a
>> >> x3dom-user list question, I started to think about using
>> >> RenderedTextures as faces for a ComposedCubeMapNode which is also
>> >> available in x3dom albeit only for ImageTexture sources.
>> >>
>> >> Although I first thought it is technically difficult due to webgl
>> >> limitations, after deep diving it turned out that there is a way to
>> >> efficiently use gl textures (generated for RenderedTexture) as faces
>> >> for gl cube map textures (using gl.copyTexImage2D()).
>> >>
>> >> So I am developing in my cubemap branch of x3dom the ability for
>> >> ComposedCubeMapNode to use RenderedTexture which can be updated per
>> >> frame, for dynamic mirror effects and probably other uses. Here is an
>> >> example:
>> >>
>> >>
>> >>
>> >> https://rawgit.com/andreasplesch/x3dom/cubemap/test/regression-suite/test/cases/cubemap/colorcube.html
>> >>
>> >> It more or less works but before I go further I would like to know how
>> >> other browser approach dynamic cube maps from a high level. There is
>> >> also the x3d GeneratedCubeMapNode which is intended for this effect.
>> >> So one question would be which players actually implement a
>> >> GeneratedCubeMapNode.
>> >>
>> >> There are quite a few x3d browsers which have a RenderedTexture node.
>> >> Do they allow using it with ComposedCubeMap ?
>> >>
>> >> A big question is how recursive mirror in mirror are handled.
>> >>
>> >> Is a RenderedTexture node a target for v.4 ?
>> >>
>> >> Any feedback much welcome,
>> >>
>> >> Andreas
>> >>
>> >
>> >
>> > 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
>>
>>
>>
>> --
>> Andreas Plesch
>> Waltham, MA 02453
>>
>> _______________________________________________
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>> x3d-public at web3d.org
>> http://web3d.org/mailman/listinfo/x3d-public_web3d.org
>>
>

-- 
Andreas Plesch
Waltham, MA 02453
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