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Summary  |  Proposal  |  Detail (Summary & Proposal)
JSRs: Java Specification Requests
JSR 189: JavaTM 3D API 1.4

Stage Access Start Finish
Withdrawn   08 Nov, 2005  
Expert Group Formation   23 Jul, 2002  
JSR Review Ballot View results 09 Jul, 2002 22 Jul, 2002
Status: Withdrawn
Reason: The changes to the Java 3D API as originally envisioned by JSR-189 were quite significant, and were planned as part of a major API release, for which we had planned to form an expert group under the JSR. Due to changes in the nature of the project development, this effort was discontinued in 2002, a few months after the JSR was filed. JSR-189 was left open as a place-holder, but it no longer makes sense to leave it open. At the time of withdrawal, the Java 3D API was a community source project on java.net, where all new development had happened over the past 18 months. They were actively developing the 1.4 API release with help from the Java 3D community on java.net. This release was a much more modest undertaking than was originally planned, and all new API changes are being designed with public input. As such they closed this JSR, and did Java 3D 1.4 as a maintenance release under the JCP.
JCP version in use: 2.1
Java Specification Participation Agreement version in use: 1.0


Description:
This JSR will add new large scale funtionality to Java 3D. Possible technologies for inclusion include programmable shading and advanced rendering techniques.

Please direct comments on this JSR to the Spec Lead(s)
Team

Specification Leads
  Kevin Rushforth Sun Microsystems, Inc.
Expert Group
  Sun Microsystems, Inc.    

This JSR has been Withdrawn
Reason: The changes to the Java 3D API as originally envisioned by JSR-189 were quite significant, and were planned as part of a major API release, for which we had planned to form an expert group under the JSR. Due to changes in the nature of the project development, this effort was discontinued in 2002, a few months after the JSR was filed. JSR-189 was left open as a place-holder, but it no longer makes sense to leave it open. At the time of withdrawal, the Java 3D API was a community source project on java.net, where all new development had happened over the past 18 months. They were actively developing the 1.4 API release with help from the Java 3D community on java.net. This release was a much more modest undertaking than was originally planned, and all new API changes are being designed with public input. As such they closed this JSR, and did Java 3D 1.4 as a maintenance release under the JCP.

Updates to the Original JSR

The following information has been updated from the original request.

2005.10.06:

Specification Lead: Kevin Rushforth

E-Mail Address: kevin.rushforth@sun.com

Telephone Number: +1 408 276 5986

Fax Number: -


Original Java Specification Request (JSR)

Identification | Request | Contributions | Additional Information

Section 1. Identification

Submitting Member: Sun Microsystems, Inc.

Name of Contact Person: Doug Twilleager

E-Mail Address: doug.twilleager@sun.com

Telephone Number: +1 650 786 9543

Fax Number: +1 650 786 5852


Specification Lead: Doug Twilleager

E-Mail Address: doug.twilleager@sun.com

Telephone Number: +1 650 786 9543

Fax Number: +1 650 786 5852

NOTE that this information has been updated from this original request.

Initial Expert Group Membership:

Sun Microsystems, Inc.
Nokia

Supporting this JSR:

Motorola



Section 2: Request

2.1 Please describe the proposed Specification:

This JSR will add major new functionality to the Java 3D API. The initial list of features to be addressed by this specification include the following:

- Programmable Shading
- Extensibility
- A Rendering Device Interface
- Access to the native context
- Geometry extensibility
- Extensible geometry processing algorithms
- Advanced Rendering Techniques
- Stencil buffer support
- Multipass rendering
- Render to texture
- Shadow map support
- Alternate depth tests
- Aditional blending operations
- Buffer storage hints
- Scene antialiasing hints
- Texture compression support

This will compose the majority of the changes to the Java 3D API specification. Other small API additions will also be considered in this JSR.

2.2 What is the target Java platform? (i.e., desktop, server, personal, embedded, card, etc.)

This will target the desktop platform.

2.3 What need of the Java community will be addressed by the proposed specification?

This will allow JavaTM 3D users to access the latest 3D technologies available in other native API's such as OpenGL and Direct3D.

2.4 Why isn't this need met by existing specifications?

These features are not supported in JavaTM 3D at this time.

2.5 Please give a short description of the underlying technology or technologies:

The features listed above are supported by low level 3D API's such as OpenGL and Direct3D. They are various rendering techniques used by modern 3D applications.

2.6 Is there a proposed package name for the API Specification? (i.e., javapi.something, org.something, etc.)

javax.media.j3d

2.7 Does the proposed specification have any dependencies on specific operating systems, CPUs, or I/O devices that you know of?

No

2.8 Are there any security issues that cannot be addressed by the current security model?

No

2.9 Are there any internationalization or localization issues?

No

2.10 Are there any existing specifications that might be rendered obsolete, deprecated, or in need of revision as a result of this work?

No

2.11 Please describe the anticipated schedule for the development of this specification.

The current schedule of this JSR is as follows:

7/2002 - Approval of JSR
8/2002 - Formation of Expert Group
2/2003 - Submit Community Draft Specification
4/2003 - Submit Public Draft Specification
8/2003 - Submit Final Draft Specification, Reference Implementation, and TCK

2.12 Please describe the anticipated working model for the Expert Group working on developing this specification.

The expert group will define the specification through e-mail, conference calls, and a few face to face meetings. Sub-groups may be formed to define separable parts of the specification.





Section 3: Contributions

3.1 Please list any existing documents, specifications, or implementations that describe the technology. Please include links to the documents if they are publicly available.

ISome of these technologies may be found in OpenGL and Direct3D. The specifications of these API's describe the features.

3.2 Explanation of how these items might be used as a starting point for the work.

IThey will be consulted to see how they can fit into the JavaTM 3D API.



Section 4: Additional Information (Optional)

4.1 This section contains any additional information that the submitting Member wishes to include in the JSR.

None