[x3d-public] Background static image and dds

[John Carlson]

Hmm. My cubemaps with 6 separate images work well on both X3DOM and X_ITE.

I’d have to try one of the standalone browsers.

Hmm Hmm.

John

Sent from Mail for Windows 10

From: Andreas Plesch
Sent: Monday, August 5, 2019 9:19 AM
To: X3D Graphics public mailing list
Subject: [x3d-public] Background static image and dds

X3DOM currently has two useful but not spec. compliant features for its Background node.

A) support for static, single image background

If only a backUrl image is provided, it is used as static backdrop which stays fixed, eg. is not a part of a cube map texture.
The same effect can be achieved with web page css styling, although sometimes it is advantageous to have a static background rendered with gl.

B) support for cubemaps in dds format

dds is a popular texture format which is well defined by MS:
https://docs.microsoft.com/en-us/windows/win32/direct3ddds/dx-graphics-dds
dds has built in support for cubemaps and is compact and portable.
x3dom understands dds format for an image provided for a cube map.
Support for additional texture formats may be out of scope for X3D. There may be other Mantis reports on texture formats.

Would it make sense to consider these features for specification ?

-Andreas




-- 
Andreas Plesch
Waltham, MA 02453

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