Posted by gouessej on Nov 29, 2023; 12:03pm
URL: https://forum.jogamp.org/flipping-textures-with-awtTextureIO-tp4043152p4043184.html

Actually, the Texture class has a documentation with a paragraph about NPOT textures:
https://jogamp.org/deployment/jogamp-next/javadoc/jogl/javadoc/com/jogamp/opengl/util/texture/Texture.html

All users aren't expected to roll their own texture flip and I remind you that several frameworks and engines successfully manage such aspects.

B and A have a different value for getMustFlipVertically(), this value is taken into account when using getImageTexCoords(). Modifying the vertical texture coordinates is a lot easier, faster and more scalable than flipping the pixels.