cannot edit: https://www.khronos.org/opengl/wiki/Image_Load_Store#Image_store
Instead of using glTexImage2D, this should be glTexStorage2D
for provided e.g.
//Create the texture
glGenTextures(1,&m_textureId);
glBindTexture(GL_TEXTURE_2D, m_textureId);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0);
glBindTexture(GL_TEXTURE_2D, 0); //Unbind the texture
//Use the texture as an image
glBindImageTexture(4, m_textureId, 0, 0, 0, GL_READ_WRITE, GL_RGBA8UI);
Also why can’t I use glTexImage2D (this does not work) instead of glTexStorage2D
okay this is mentioned here:
https://www.khronos.org/opengl/wiki/Common_Mistakes
glGenTextures(1, &textureID);
glBindTexture(GL_TEXTURE_2D, textureID);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0, GL_BGRA, GL_UNSIGNED_BYTE, pixels);
Your name appears similar to the one who added this code snippet in the first place. Are you unable to log in? What was the problem with updating the code?
Hi,
Yes I had added that code snippet, I wanted to change it to use glTexStorage2D
but mentioning this is better: https://www.khronos.org/opengl/wiki/Common_Mistakes#Creating_a_complete_texture)
On editing the page
I get the following error:
[Y68SZAr8FG3GnWKf5xJKpgAAAEk] /opengl/wiki_opengl/index.php?title=Image_Load_Store&action=submit Error: Interface 'MediaWiki\Extension\AbuseFilter\Hooks\AbuseFilterAlterVariablesHook' not found
Backtrace:
from /home/khronos/public_html/opengl/wiki_opengl/extensions/TorBlock/includes/TorBlockAbuseFilterHooks.php(33)
#0 /home/khronos/public_html/opengl/wiki_opengl/includes/AutoLoader.php(244): require()
#1 [internal function]: AutoLoader::autoload(string)
#2 /home/khronos/public_html/opengl/wiki_opengl/vendor/wikimedia/object-factory/src/ObjectFactory.php(247): spl_autoload_call(string)
#3 /home/khronos/public_html/opengl/wiki_opengl/vendor/wikimedia/object-factory/src/ObjectFactory.php(152): Wikimedia\ObjectFactory\ObjectFactory::getObjectFromSpec(array, array)
.....
No, it isn’t. It’s better to direct people to the less error prone solution (glTexStorage2D) than it is to tell them how to avoid a common mistake.
In any case, I don’t have any actual administrative control over the Wiki. I got the same error when I attempted to fix the page, so something there seems broken.