X3D Multitexture

X3D Multitexture needs a complete review of current capabilities to ensure that proper support is required.

X3D Specification and Possible Technical Issues

Multitexture capabilities are defined in the Texturing Component of the X3D Specification.

• MultiTexture
• MultiTextureCoordinate
• MultiTextureTransform

Technical problems and issues

• Dave Arendash has posted several times on specification deficiencies and Need good multitexture example

• Michalis Kamburelis has posted a detailed list of Problems with existing X3D MultiTexture specification based on implementing these capabilities in the Castle Game Engine

• Yvonne Jung reports

    Having multiple textures for shaders is possible, but the compositing modes defined in the spec
    basically exactly map to some around >12 year old GL extensions from the pre-shader times.
    So, no, it won't supported in that way.

• Timo reports that X3DOM can use a shader approach:
  • commonSurfaceShader01.xhtml
  • commonSurfaceShader02.xhtml
  • x3dom_composedShader.xhtml is a bump mapping example with multitextures

X3D Players Implementing Multitexture Capabilities

Player support for X3D components summarizes currently known capabilities for all players and all components

BS Contact

• Bitmanagement Feature Labs provides a Multitexture Lab allowing live modification of an example scene

Instant Reality

• Multitexture documentation

X3DOM

• MultiTextureNodes are part of the X3DOM HTML-Profile

X3D Authoring Tools Implementing Multitexture Capabilities

Tool support for X3D components summarizes currently known capabilities for all authoring (and conversion) tools and all components

Example Scenes for Testing

• Castle Game Engine has posted a number of VRML / X3D demo models. Inside texturing_advanced/ subdirectory there are a number of multi-texturing examples (mostly in classic encoding) in multi_tex_* files.
• Multi Texture Design Pattern is an initial example (figure), more scenes will be added to X3D for Advanced Modeling examples