I am developing an After Effects plugin where I use a VAO for OpenGL rendering. After full screen RAM preview the VAO, which has the handle number 1, is somehow deleted (glGenVertexArrays generates 1 again). The strange thing is that the shaders and framebuffers are still valid, so it's not the entire OpenGL context that gets reset. Does anyone know what could cause this?
How can an OpenGL Vertex Array Object get deleted without calling glDeleteVertexArrays?
859 views Asked by s---70 At
1
There are 1 answers
Related Questions in C++
- Add additional fields to Linq group by
- couldn't copy pdb file to another directory while consuming wcf web service
- Why are the aliases for string and object in lowercase?
- WPF MessageBox Cancel checkbox check
- Resolve object using DI container with object instance
- Creating a parametrized field name for a SELECT clause
- Does compiler optimize operation on const variable and literal const number?
- Get data from one form to another form in C#
- Writing/Overwriting to specific XML file from ASP.NET code behind
- Deleting Orphans with Fluent NHibernate
Related Questions in OPENGL
- Add additional fields to Linq group by
- couldn't copy pdb file to another directory while consuming wcf web service
- Why are the aliases for string and object in lowercase?
- WPF MessageBox Cancel checkbox check
- Resolve object using DI container with object instance
- Creating a parametrized field name for a SELECT clause
- Does compiler optimize operation on const variable and literal const number?
- Get data from one form to another form in C#
- Writing/Overwriting to specific XML file from ASP.NET code behind
- Deleting Orphans with Fluent NHibernate
Related Questions in VISUAL-STUDIO-2012
- Add additional fields to Linq group by
- couldn't copy pdb file to another directory while consuming wcf web service
- Why are the aliases for string and object in lowercase?
- WPF MessageBox Cancel checkbox check
- Resolve object using DI container with object instance
- Creating a parametrized field name for a SELECT clause
- Does compiler optimize operation on const variable and literal const number?
- Get data from one form to another form in C#
- Writing/Overwriting to specific XML file from ASP.NET code behind
- Deleting Orphans with Fluent NHibernate
Related Questions in AFTER-EFFECTS
- Add additional fields to Linq group by
- couldn't copy pdb file to another directory while consuming wcf web service
- Why are the aliases for string and object in lowercase?
- WPF MessageBox Cancel checkbox check
- Resolve object using DI container with object instance
- Creating a parametrized field name for a SELECT clause
- Does compiler optimize operation on const variable and literal const number?
- Get data from one form to another form in C#
- Writing/Overwriting to specific XML file from ASP.NET code behind
- Deleting Orphans with Fluent NHibernate
Related Questions in VERTEX-ARRAY-OBJECT
- Add additional fields to Linq group by
- couldn't copy pdb file to another directory while consuming wcf web service
- Why are the aliases for string and object in lowercase?
- WPF MessageBox Cancel checkbox check
- Resolve object using DI container with object instance
- Creating a parametrized field name for a SELECT clause
- Does compiler optimize operation on const variable and literal const number?
- Get data from one form to another form in C#
- Writing/Overwriting to specific XML file from ASP.NET code behind
- Deleting Orphans with Fluent NHibernate
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
Popular Tags
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
The most likely explanation is, that your plugin gets a completely newly created OpenGL context everything time happens. If your OpenGL context shared its "list" namespace with another "caching" context, and this sharing is re-established for the new context, you'd observe this behavior.
When establishing OpenGL context namespace sharing some kinds of objects are shared, i.e. get their "internal reference counts" (you can't directly access thise) incremented for each participating context, while others are not. Objects that hold data in any form (textures, buffer objects, shaders) are shared, while abstraction objects that hold state (array objects and framebuffer objects among them) are not.
So if a new context is created and a namespace sharing with the cache context established, you'll see all the textures, shaders and so on, you created previously, while VAOs and FBOs would disappear.
If you want to catch this situation use
wglGetCurrentContext
to get the OS handle. You can safely cast a windows handle touintptr_t
integer type, so for debugging you could print the value of the handle and look for if it changes.