[x3d-public] which do you like best? How can I make thecomparison more equal?

[vmarchetti at kshell.com]

The MacOS and iOS have WebGL; both X3DOM and X_ITE implementations of X3D work on desktop and iOS devices. However I did note in August 2016 that volumetric rendering stopped working on the "El Capitan" release of MacOS (see x3d-public mailing list archive, thread "MacOS: El Capitan breaks X3DOM volume rendering", August 2016) and I blamed it on Metal. That problem appears to have fixed in subsequent updates. I am curious as to whether there is a similar problem with implementation of "ComposedShaderNode" on MacOS.

Vince Marchetti

> On Oct 24, 2017, at 9:24 AM, John Carlson <yottzumm at gmail.com> wrote:
> 
> I think webgl is needed .
> 
> On Oct 24, 2017 8:32 AM, "vmarchetti at kshell.com" <vmarchetti at kshell.com> wrote:
> I see the example page http://coderextreme.net/X3DJSONLD/src/main/html/flowers.xhtml works on Windows 10 in:
> Edge 38.14393
> Firefox 56.0.1
> Chrome 62.0
> 
> The X3D scenes use ComposedShader node:
> <ComposedShader language="GLSL">...
> 
> for those of us not up to speed on shaders, including myself, could you review whether you would expect this to work on MacOS, either with the new Metal graphics or in older OpenGL Mac systems?  My understanding is that Metal is a replacement for OpenGL implementation on MacOS and iOS; but I cannont find clear information on whether Metal is or is even intended to be fully backward compatible with OpenGL.
> 
> Thanks
> Vince Marchetti
> 
>> On Oct 24, 2017, at 6:28 AM, John Carlson <yottzumm at gmail.com> wrote:
>> 
>> Chrome on Windows.  You need OpenGL.
>> 
>> John
>> 
>> Sent from Mail for Windows 10
>> 
>> From: vmarchetti at kshell.com
>> Sent: Tuesday, October 24, 2017 6:21 AM
>> To: John Carlson; X3D-Public
>> Subject: Re: [x3d-public] which do you like best? How can I make thecomparison more equal?
>> 
>> John
>> 
>> This looks like a valuable way to compare implementations, but I am not able to get the page to load completely in any of these browsers:
>> 
>> Chrome 62.0
>> Firefox 56.0
>> Safari 10.0
>> 
>> all running in MacOS 10.11.6
>> 
>> Can you details on browsers/platforms where the page loads completely?
>> 
>> Thanks
>> Vince Marchetti
>> 
>>> On Oct 24, 2017, at 3:23 AM, John Carlson <yottzumm at gmail.com> wrote:
>>> 
>>> http://coderextreme.net/X3DJSONLD/src/main/html/flowers.xhtml
>>> 
>>> This has Chandan’s music.  Hire him if you like it!
>>> 
>>> John
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>