Shot in the dark texture question

Graphics and GPU Programming Programming

Started by Mulligan January 22, 2004 01:14 PM

16 comments, last by Mulligan 20 years, 2 months ago

378

Author

January 22, 2004 01:14 PM

Im attempting to add texturing to my editor, but the textures ony display in the last window. The same rendering code is used for each of the views. Heres a picture:

any idea whats wrong?

Sneftel

1,788

January 22, 2004 01:22 PM

Are the different views different OpenGL contexts, or different viewports within the same context?

"Sneftel is correct, if rather vulgar." --Flarelocke

Anonymous

January 22, 2004 01:23 PM

Do you honestly expect a response? We need WAAAY more info.

Mulligan

378

Author

January 22, 2004 01:27 PM

Get a name AP.

Different contexts.

_the_phantom_

11,263

January 22, 2004 01:37 PM

iirc dont textures have to be loaded into each context?

Evangelion

122

January 22, 2004 01:38 PM

I *think* that each context keeps up with its own textures, so you cannot use textures from one context in another. BTW, nice editor, and good luck.

Mulligan

378

Author

January 22, 2004 01:43 PM

When i disable the bottom three views, the top view becomes textured. So basically, whichever view is rendered last works properly.

Im almost sure its just an order of operations issue with opengl commands, because i have solved this problem before, but i cant recall how.

Sneftel

1,788

January 22, 2004 01:47 PM

Are you calling glBindTexture and glTexImage2D in each context?

"Sneftel is correct, if rather vulgar." --Flarelocke

Mulligan

378

Author

January 25, 2004 02:48 PM

Ahha, i tried switching the context when generating textures and low and behold, they only appear in the active context when the texture was generated.

So, do i seriously have to generate 4 of the same textures for to allow texturing in all four windows at once? Seems like overkill...

also, are how do i free the textures from memory? my setup maintains a single list of unsigned ints, which represent pengl textures, but does it matter which context is enabled when i free them?

thanks Sneftel, you were quite right

[edited by - Mulligan on January 25, 2004 3:49:36 PM]

krez

443

January 25, 2004 03:20 PM

look up glShareLists() on MSDN, it allows contexts to share display lists and textures.

--- krez ([email="krez_AT_optonline_DOT_net"]krez_AT_optonline_DOT_net[/email])

Shot in the dark texture question

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