remove `rangeMin` decorator from camera near

[mvrlin]

Re: When using Ortographic Projection it doesn't allow to set near less than zero and because of that, we can see through the mesh when it's close to the bottom of camera

As a temporary fix you can set _near property inside Camera component in scene

Changelog

• remove rangeMin decorator from camera near

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Continuous Integration

This pull request:

• [ ] needs automatic test cases check.

  Manual trigger with @cocos-robot run test cases afterward.

• [x] does not change any runtime related code or build configuration

  If any reviewer thinks the CI checks are needed, please uncheck this option, then close and reopen the issue.

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Compatibility Check

This pull request:

• [ ] changes public API, and have ensured backward compatibility with deprecated features.
• [ ] affects platform compatibility, e.g. system version, browser version, platform sdk version, platform toolchain, language version, hardware compatibility etc.
• [ ] affects file structure of the build package or build configuration which requires user project upgrade.
• [ ] introduces breaking changes, please list all changes, affected features and the scope of violation.

[mvrlin]

Attaching a demo project near-demo.zip

[mvrlin]

@pandamicro any update on this?

[minggo]

It sounds reasonable. @GengineJS please review it.

[GengineJS]

In theory, setting the value of the near clipping plane to less than zero may lead to issues. This is because the near clipping plane is typically used to determine objects within the camera's field of view and is employed in depth testing. If the near clipping plane is set to a negative value, it may result in incorrect depth testing, potentially causing rendering anomalies or unpredictable outcomes.

[star-e]

We are fixing this in cocos creator.