Checking if Texture is Loaded into Memory

[john]

I want to check my memory to see if a certain texture is loaded, and if it is, not load it into memory again. Anyone have an idea on how to check which textures have been loaded so far?

[baldurk]

the best way to do it would be have a boolean flag in your code, and set it to true when the texture is loaded. I don't know of any way to check in OpenGL if a texture is loaded

[Yau]

Maybe u can look at the OpenGl error codes. I've never looked at this problem before ut I'm pretty sure there's an error code if u try to display a texture map if there isn't actually texture loaded for it.

[davepermen]

hm.. smells like a texture manager.. not?

[CyraX]

What ufnction are you using to load the memory.

[shezan]

i'm not sure if this is what you are looking for, but glIsTexture() will determine whether the texture has been created. As to whether it is loaded in graphics memory (VRAM), i dont think this is possible because there is no function in openGL to actually instruct the driver to put the texture in VRAM (as far as i know). The only method I can think of that would force a texture into VRAM is glBindTexture() which basically makes the texture "current". You can use glGet (i think) to retrieve the current texture