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I have multiple machines that do not have openGL capable graphics controllers (or at least not for the OS I am using), and I am trying to run various softwares which require openGL32.dll to be present and working. I only need openGL version 1.4 compatibility.
My question: Is there some sort of software-only emulation for openGL that I can use to run these? I have heard of MESA, but all I need is the dll, and MESA seems to require that I build everything manually.
I am running Windows 10 x86_64
I'm pretty surprised that a machine running Windows 10 does not have a GPU capable of supporting OpenGL-1.4 – most likely you simply don't have the proper drivers installed and that's all your troubles. OpenGL dates back almost 15 years; that was before shaders where are thing.
The default Windows installation does not ship with fully featured OpenGL drivers, because Microsoft in all their wisdom decided, that they'd strip perfectly working OpenGL drivers from the drivers installed through Windows automatic driver installation.
To get full and proper OpenGL support you absolutely must download the drivers directly from your GPU vendors website and install those. Open up the "Hardware Manager", look for "Graphics adapter", there you find the name of it. Type the name plus "driver Windows" into the little box of Google and it will carry you to the right place.
Mesa3D seems to publish its own versions of it: https://fdossena.com/?p=mesa/index.frag
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I was just wondering if it would be possible to install the CUDA toolkit without replacing my Display Driver. I don't mind the other changes that the installation would make to my system, but wish to keep my current NVIDIA display driver, rather than change to the one in the CUDA installation. Therefore, is this possible, or is the replacement display driver required to develop and run cuda programmes?
You need a display driver that is at least as recent as that included in the CUDA toolkit that you are installing. For example, Linux CUDA 5.5 requires a 319.37 or newer display driver, Linux CUDA 5.0 requires a 304.54 or newer display driver.
During the install of the toolkit, you will be prompted as to which components you want to install (driver, toolkit, samples). You can select no when prompted for the driver, if you wish to keep your driver. There are getting started guides for each of the supported platforms (windows, linux, mac).
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We have an application that we want to compile, auto-build and auto-test on an virtual machine. The virtual machine "provider" has to be able to be cross-platform as we require this operation to be executed on both windows and several linux distrubtions at the same. Our application is
dependent on OpenGL, and require a rather new version of OpenGL in order to work properly.
We have decent experience with Oracles Virtual Box, where we are able to perform the above action with some effort, since we can hardware acceleration through the host-machine.
However it is somewhat limited as it is quite demanding on the host-machine, and it is not really well-suited for many virtual boxes running at the same time.
So ideally a solution could be Amazon EC2 cloud computing, but here we run into the 'usual' problem with, that we might be able to get a linux distribution (for instance Ubuntu) up and running with ease, but hits a very hard wall once we want to start installing some OpenGL drivers in order to be able to compile and test our application. Even mesa-drivers is impossible to get up and running to a degree that one can run glxinfo or glxgears.
We can't be the only one facing this problem, so what do other do ?
Even mesa-drivers is impossible to get up and running to a degree that one can run glxinfo or glxgears.
Mesa should always be able to fall back to swrast or llvmpipe. However for anything that uses GLX to work you need an X server. Instead of using Kdrive based servers (like Xvfb) I recommend using the regular Xorg server with the dummy driver. You'll have to write an xorg.conf for that.
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I am new to OpenGL. I have to develop a simple 3D application. I read from Google that I have to install GLUT and OpenGL. Is that right? Can you tell what exactly should I install?
Any link for proper download is appreciated.
Google that I have to install GLUT and
You don't need GLUT necessarily. A lot of tutorials use it, though.
OpenGL. Is that right?
Well, OpenGL is mostly an API to the drivers. So what you actually need are the drivers for your graphics processor directly from the vendor. The drivers Windows7 installs automatically lack modern OpenGL support.
So just head over to http://intel.com or http://amd.com or http://nvidia.com, depending on your GPU, and download the drivers for from their site directly and install them.
What I highly recommend is getting GLEW: http://glew.sf.net – it makes things to much easier in the long run. Especially if you want to do anything beyond OpenGL-1.1 you'll have to use the so called extension system which is a bit tedious to use directly. GLEW hides this all behind a single function call to glewInit(), once you've got a OpenGL context.
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Is is possible to do Open GL development and run programs on a computer with out a graphics card? (e.g. my netbook running Ubuntu)
Update This was many years ago, the link is not available anymore, and there are probably newer, better, builds now.
Yes, you can use MESA.
For your convenience, I've compiled it in both 32- and 64bit at:
http://dl.dropbox.com/u/9496269/mesa.zip
Simply put them where your executable file is located.
Sure. Many software only implementations of OpenGL exist. Check out the Mesa project at http://www.mesa3d.org/ for one of the most popular. There are parts of the shading language not fully supported, and it tends to lag the standard a bit in general, but that is the case of all software API emulators. Its still very full featured and can be used in production code for many common uses.
You can use OpenGL on many integrated GPUs, mostly AMD chips like the Ryzen 3 3200G, which has a GPU that is the same as a GTX 1050 for around £100.
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Is there a tool available that can do performance profiling of OpenGL shaders?
nVidia PerfWorks can. They also have FX Composer, which includes some profiling with a graphical front-end (but FX Composer is now basically discontinued--you can still download it, but it's no longer being updated).
AMD/ATI's GPUPerfAPI and GPUPerfStudio provide similar capabilities. They also have GPU ShaderAnalyzer to do static analysis, but I believe it's restricted to DirectX shaders, not OpenGL.
If you run on Nvidia hardware there is also Nsight for Visual Studio resp. the standalone Nsight Graphics.
AMD's GPUPerfStudio even works without AMD hardware but you only get the API tracer (and the static shader analyzer if you use DirectX). The frame debugger and profiler tools depend on their hardware of course.
For Intel there is GPA. It doesn't support shader micro profiling though.
There is also the static (i.e. does not require hardware) Intel Shader Analyzer but not sure if it provides more than just the assembly: http://shader-playground.timjones.io/749ef0d908128a0ae8a824b93381bbf1
RenderDoc does not really have profiling capabilities at this point due to lack of time.
But some Intel perf counters for OpenGL have been added recently.