[x3d-public] rendering the X3D standard...is it extensive enough

John Carlson yottzumm at gmail.com
Wed Oct 18 10:00:08 PDT 2017


I mean, are we mathematicians or engineers?   We appear to be engineers.
I'm a mathematician looking on in horror to what the engineers did to my
wonderful computing device.

On Oct 18, 2017 12:55 PM, "John Carlson" <yottzumm at gmail.com> wrote:

> Here's the possible scenario, I have a vendor that says they meet the
> standard, but have wildly different renderings between runs.   Do they get
> the X3D blessing because they implement the format, or is there an image
> standard that they much match, and who is doing the checking?  Is it
> automated?   It would seem not.   What use is a standard which can't be
> verified?
>
> Yes, I am aware of the X3D resources thumbnails, I'm just wondering about
> any standard certification of browser renderings.
>
> I'm laughing too.  X3D appears to be a joke.
>
> John
>
> On Oct 18, 2017 12:45 PM, "John Carlson" <yottzumm at gmail.com> wrote:
>
>> The question becomes, can I expect a single browser to generate identical
>> pixels between runs, and if not, how is testing done?
>>
>> Thanks,
>>
>> John
>>
>> On Oct 18, 2017 12:31 PM, "Greg Couch" <gregc at cgl.ucsf.edu> wrote:
>>
>>> On 10/18/2017 08:53 AM, John Carlson wrote:
>>>
>>>> I am wondering if the X3D standard is complete or extensive enough to
>>>> provide for pixel perfect equality between browsers.   This is important
>>>> for archiving.   Has this been a goal?
>>>>
>>>> Thanks,
>>>>
>>>> Johb
>>>>
>>>
>>> Thanks for the laugh.  The OpenGL/Vulkan/Direct3D/etc. specifications
>>> have never required pixel perfect equality between graphics cards, so it
>>> has not ever been a goal AFAIK.  Are they close?  Yes, very close, but not
>>> pixel perfect.  The great thing about X3D is that you're archiving the
>>> description of the scene not the image of the scene.
>>>
>>>    HTH,
>>>
>>>    Greg
>>>
>>
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