The question is: would it be ok to use inmediate mode to perform the render?
Edited by germangb, 10 December 2012 - 12:02 PM.
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#2 Members - Reputation: 905
Posted 10 December 2012 - 01:44 PM
Yes. viewport clipping still works in immediate mode IIRC.
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#4 Crossbones+ - Reputation: 5187
Posted 10 December 2012 - 09:19 PM
Using immediate mode makes slow.
It is never “okay” to use immediate mode.
Use VBO’s.
L. Spiro
It is never “okay” to use immediate mode.
Use VBO’s.
L. Spiro
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#6 GDNet+ - Reputation: 1751
Posted 12 December 2012 - 01:51 AM
Display lists have been "discouraged" for a while. I stopped using GL years ago and they were already considered on their way out.
As far as I recall, they're now officially deprecated... except GL cannot say "deprecated", it says "not in the core profile" or something like that.
As far as I recall, they're now officially deprecated... except GL cannot say "deprecated", it says "not in the core profile" or something like that.
#7 Crossbones+ - Reputation: 5187
Posted 12 December 2012 - 04:19 AM
If your question is purely about whether or not viewport clipping is supported with each of these rendering methods, the answer is Yes. Viewport clipping is part of the rendering pipeline and it makes no difference how the triangles got to that stage of the pipeline.
But we can’t tell you in good conscience to use immediate mode nor display lists.
Immediate mode has been deprecated for ages and is terribly horribly slow. Display lists have been deprecated for a shorter period of time but are deprecated and their use is entirely discouraged not only by people who know what they are doing but also by Khronos. Considering how easy the switch is to VBO’s from display lists, there really is no reason not to do it, so I really can’t understand why you can’t just use VBO’s and be done with it.
In future versions of OpenGL you won’t even have the choice not to use VBO’s—it will be required that you do.
L. Spiro
But we can’t tell you in good conscience to use immediate mode nor display lists.
Immediate mode has been deprecated for ages and is terribly horribly slow. Display lists have been deprecated for a shorter period of time but are deprecated and their use is entirely discouraged not only by people who know what they are doing but also by Khronos. Considering how easy the switch is to VBO’s from display lists, there really is no reason not to do it, so I really can’t understand why you can’t just use VBO’s and be done with it.
In future versions of OpenGL you won’t even have the choice not to use VBO’s—it will be required that you do.
L. Spiro
It is amazing how often people try to be unique, and yet they are always trying to make others be like them. - L. Spiro 2011
I spent most of my life learning the courage it takes to go out and get what I want. Now that I have it, I am not sure exactly what it is that I want. - L. Spiro 2013
L. Spiro Engine: http://lspiroengine.com
L. Spiro Engine Forums: http://lspiroengine.com/forums
I spent most of my life learning the courage it takes to go out and get what I want. Now that I have it, I am not sure exactly what it is that I want. - L. Spiro 2013
L. Spiro Engine: http://lspiroengine.com
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#8 Members - Reputation: 153
Posted 12 December 2012 - 09:04 AM
If your question is purely about whether or not viewport clipping is supported with each of these rendering methods, the answer is Yes. Viewport clipping is part of the rendering pipeline and it makes no difference how the triangles got to that stage of the pipeline.
But we can’t tell you in good conscience to use immediate mode nor display lists.
Immediate mode has been deprecated for ages and is terribly horribly slow. Display lists have been deprecated for a shorter period of time but are deprecated and their use is entirely discouraged not only by people who know what they are doing but also by Khronos. Considering how easy the switch is to VBO’s from display lists, there really is no reason not to do it, so I really can’t understand why you can’t just use VBO’s and be done with it.
In future versions of OpenGL you won’t even have the choice not to use VBO’s—it will be required that you do.
L. Spiro
thanks! I'll definitely go with VBOs
Edited by germangb, 12 December 2012 - 09:06 AM.
