What are the advantages of GLSL's compilation model?

Posted by Kos on Programmers See other posts from Programmers or by Kos
Published on 2012-06-09T10:02:25Z Indexed on 2012/06/09 10:47 UTC
Read the original article Hit count: 301

Filed under:

opengl

|

gpu

|

shaders

GLSL is fundamentally different from other shader solutions because the server (GPU driver) is responsible for shader compilation. Cg and HLSL are (afaik) generally compiled a priori and sent to the GPU in that way.

This causes some real-world practical issues:

many drivers provide buggy compilers
compilers differ in terms of strictness (one GPU can accept a program while another won't)
also we can't know how the assembler code will be optimised

What are the upsides of GLSL's current approach? Is it worth it?

© Programmers or respective owner

Related posts about opengl

Unity completely broken after upgrade to 12.10?

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I am facing a very frustrating issue with my computer right now. I successfully upgraded to Ubuntu 12.10 this afternoon, but after the upgrade, the graphical user interface seems completely broken. To be more specific, I can not get the Unity bar to appear on the right. I have tried many things,… >>> More
OpenGL or OpenGL ES

as seen on Game Development - Search for 'Game Development'
What should I learn? OpenGL 4.1 or OpenGL ES 2.0? I will be developing desktop applications using Qt but I may start developing mobile applications in a few months, too. I don't know anything about 3D, 3D math, etc and I'd rather spend 100 bucks in a good book than 1 week digging websites and going… >>> More
OpenGL ES 2/3 vs OpenGL 3 (and 4)

as seen on Game Development - Search for 'Game Development'
I have migrated my code from OpenGL ES 2/3 to OpenGL 3 (I added bunch of defines and abstract classes to encapsulate both versions, so I have both in one project and compile only one or another). All I need to change was context initialization and glClearDepth. I dont have any errors. This was kind… >>> More
OpenGL extension vs OpenGL core

as seen on Programmers - Search for 'Programmers'
I was doubting: I'm writing a cross-platform engine OpenGL C++, I figured out windows forces the developers to access OpenGL features above 1.1 through extensions. Now the thing is, on Linux, I know that I can directly access functions if the version supports it through glext.h and opengl version… >>> More
LWJGL - Eclipse error [on hold]

as seen on Game Development - Search for 'Game Development'
When I try to run my lwjgl project, an error pops . Here is the log file: # A fatal error has been detected by the Java Runtime Environment: # EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x6d8fcc0a, pid=5612, tid=900 # JRE version: 6.0_16-b01 Java VM: Java HotSpot(TM) Client VM (14.2-b01 mixed… >>> More

Related posts about gpu

CUDA: Memory copy to GPU 1 is slower in multi-GPU

as seen on Stack Overflow - Search for 'Stack Overflow'
My company has a setup of two GTX 295, so a total of 4 GPUs in a server, and we have several servers. We GPU 1 specifically was slow, in comparison to GPU 0, 2 and 3 so I wrote a little speed test to help find the cause of the problem. //#include <stdio.h> //#include <stdlib.h> //#include… >>> More
Software for monitoring/measuring GPU temperature (WinXP/7)

as seen on Super User - Search for 'Super User'
Are there currently any programs available for monitoring/measuring GPU temperature? Something preferably free, and for either Windows XP and Windows 7. Thanks in advance! >>> More
Port scientific software to GPU and publish it

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, let's say that I am a physicist and that I am the master of the universe when it comes to port salready existing oftware to GPU's with 100x or more speedups. Let's say that I find that some other scientist, which does not know how to program GPU, publishes the Open Source code in his/her website… >>> More
Intel Merges GPU, CPU for Netbooks

as seen on Internet.com - Search for 'Internet.com'
The move to integrated CPU and GPU continues as Intel brings the technology down to the low-end netbook segment. >>> More
Yellow Dog Enterprise Linux for GPU computing

as seen on Internet.com - Search for 'Internet.com'
<b>The H Open:</b> "The Japanese Fixstars Corporation, which specialises in software for the Cell processors, has announced the release of Yellow Dog Enterprise Linux (YDEL) 6.2 for CUDA, the first enterprise Linux OS optimised for GPU computing." >>> More