Arcball | Sample simple arcball trackball for OpenGL 4 in C | Graphics library

by subokita C++ Version: Current License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(3)Vulnerabilities Install Support

kandi X-RAY | Arcball Summary

Arcball is a C++ library typically used in User Interface, Graphics, WebGL applications. Arcball has no bugs, it has no vulnerabilities and it has low support. However Arcball has a Non-SPDX License. You can download it from GitHub.

Sample simple arcball trackball for OpenGL 4 in C++.

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Support

Arcball has a low active ecosystem.

It has 30 star(s) with 12 fork(s). There are 2 watchers for this library.

It had no major release in the last 6 months.

Arcball has no issues reported. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of Arcball is current.

Quality

Arcball has 0 bugs and 0 code smells.

Security

Arcball has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

Arcball code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

Arcball has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

Arcball releases are not available. You will need to build from source code and install.

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Arcball Key Features

No Key Features are available at this moment for Arcball.

Arcball Examples and Code Snippets

No Code Snippets are available at this moment for Arcball.

Community Discussions

Trending Discussions on Arcball

java-processing floating point rounding error, how to keep radians rational

how to apply lighting to .obj file on pyopengl

Issue with Picking (custom unProject() function)

QUESTION

java-processing floating point rounding error, how to keep radians rational

Asked 2021-Jan-12 at 03:24

I have modified this arcball class so that every call to arcball.rollforward(PI/180); rotates a matrix 1 degree. I have tried to set it up so arcball.rollback() is called with the accumulated float rotatebywithincludedfloaterror but it has had the same degree error as rolling back 360 degrees without the float error. this is how far it is off after 1000 full rotations, it should be a 1:1 reflection of the top cube over x

here is main function with a loop of 1 * 360 degree rotation and framerate for testing (set framerate to 900 for multiple rotations so it dose not take forever)

...

ANSWER

Answered 2021-Jan-12 at 03:24

using my idea in the question to reset every 2*PI

Source https://stackoverflow.com/questions/65670183

QUESTION

how to apply lighting to .obj file on pyopengl

Asked 2020-Sep-12 at 05:17

i implement arcball with an object from .obj file in the center when i try to implement lighting, the object show strange behaviour

when i turn the object slightly, the object deconstruct and suddenly show the back side

this behaviour doesn's come up until i implement lighting based on this How to correctly add a light to make object get a better view with pygame and pyopengl

this is what i do regarding the lighting impelementation

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ANSWER

Answered 2020-Aug-25 at 07:34

You have to enable the Depth Test. Enable the depth test before the application loop:

Source https://stackoverflow.com/questions/63573381

QUESTION

Issue with Picking (custom unProject() function)

Asked 2020-Aug-12 at 18:07

I'm currently working on a STL file viewer. This one use an Arcball camera :

To provide more features on this viewer (which can handle more than one object) I would like to implement a click select. To achieve it, I have used picking(Pseudo code I have used)

At this time, my code to check for a any object 3D between 2 points works. However the conversion of mouse position to a correct set of vector is far away from working:

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ANSWER

Answered 2020-Aug-12 at 00:32

I have found what's wrong, the return vec3 should be made by dividing each component by the perspective instead of being multiply by it. Here is the new UnProject function :

Source https://stackoverflow.com/questions/63367640

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install Arcball

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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