OpenGL Quick Reference

Broadly speaking, OpenGL® is separated into three components: the OpenGL® graphics system itself, the OpenGL® shading language you can use to write shaders, and optional extensions that implement extended functionality.

Component Description
OpenGL® ImplementationThis is the core graphics subsystem. This has a version number such as 2.1 or 4.0.
GLSLThis is the language you use to write shaders. This has a version number such as 100, 140, 300, or 450.
ExtensionsAdditional packages that extend the capabilities or the core graphics subsytem. These have names such as GL_ARB_compute_shader.

According to the way OpenGL® works, if a manufacturer says their device/driver supports a particular version of OpenGL® and GLSL, then certain features must work in order for the manufacturer to be able to say that their implementation is compliant. Reality is a little different, and this means that when we work with OpenGL®, it's our job to figure out the features and capabilities of the target hardware in order to write shaders that execute the desired workload.

Let's review all the versions of OpenGL® and GLSL that have ever been made. We'll deal with extensions later, when we start to explore the exact features and capabilities of a specific device and driver.
OpenGL® Version GLSL Version Issue Date Available Extensions
2.0100May 2009Depends on device and driver.
2.0110April 2004Depends on device and driver.
2.1120September 2006Depends on device and driver.
3.0130November 2009Depends on device and driver.
3.1140November 2009Depends on device and driver.
3.2150December 2009Depends on device and driver.
3.0300January 2016Depends on device and driver.
3.1310January 2016Depends on device and driver.
3.2320January 2019Depends on device and driver.
3.3330March 2010Depends on device and driver.
4.0400July 2010Depends on device and driver.
4.1410July 2010Depends on device and driver.
4.2420December 2011Depends on device and driver.
4.3430February 2013Depends on device and driver.
4.4440June 2014Depends on device and driver.
4.5450May 2017Depends on device and driver.
4.6460June 2018Depends on device and driver.

A lot of core functionality is implemented with extensions. This includes features such as compute shaders and image load/store operations. If you want to use Simdify for something specific, such as writing compute shaders, then you need to make sure that your GPU supports compute shaders. Fortunately, Simdify Free Edition makes it very easy to learn what features your GPU supports.

Variable Types By Version

Next, we'll review variable types by GLSL version. Variables are things like uint, uint[4], uvec2, uvec3, uvec4, and arrays of each. Other important variables type are mat2x2 through mat4x4. Finally, samplers types are also important. These are declared in GLSL and they are the main feature that allow you to work with textures. So it's important to know what sampler types are supported by which versions of GLSL.

GLSL Version Variable Types
100float int bool mat2 mat3 mat4 vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 sampler2D samplerCube struct
110float int bool mat2 mat3 mat4 vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 sampler1D sampler2D sampler3D samplerCube sampler1Dshadow sampler2D shadow struct
120float int bool mat2 mat3 mat4 vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 sampler1D sampler2D sampler3D samplerCube sampler1Dshadow sampler2D shadow struct
130float int bool mat2 mat3 mat4 mat2x2 mat2x3 mat2x4 mat3x2 mat3x3 mat3x4 mat4x2 mat4x3 mat4x4 vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 uint uvec2 uvec3 uvec4 sampler1D sampler2D sampler3D samplerCube sampler1DShadow sampler2DShadow samplerCubeShadow sampler1DArray sampler2DArray sampler1DArrayShadow sampler2DArrayShadow isampler1D isampler2D isampler3D isamplerCube isampler1DArray isampler2DArray usampler1D usampler2D usampler3D usamplerCube usampler1DArray usampler2DArray struct
140float int bool mat2 mat3 mat4 mat2x2 mat2x3 mat2x4 mat3x2 mat3x3 mat3x4 mat4x2 mat4x3 mat4x4 vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 uint uvec2 uvec3 uvec4 precision sampler1D sampler2D sampler3D samplerCube sampler1DShadow sampler2DShadow samplerCubeShadow sampler1DArray sampler2DArray sampler1DArrayShadow sampler2DArrayShadow isampler1D isampler2D isampler3D isamplerCube isampler1DArray isampler2DArray usampler1D usampler2D usampler3D usamplerCube usampler1DArray usampler2DArray sampler2DRect sampler2DRectShadow isampler2DRect usampler2DRect samplerBuffer isamplerBuffer usamplerBuffer struct
150float int bool mat2 mat3 mat4 mat2x2 mat2x3 mat2x4 mat3x2 mat3x3 mat3x4 mat4x2 mat4x3 mat4x4 vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 uint uvec2 uvec3 uvec4 precision sampler1D sampler2D sampler3D samplerCube sampler1DShadow sampler2DShadow samplerCubeShadow sampler1DArray sampler2DArray sampler1DArrayShadow sampler2DArrayShadow isampler1D isampler2D isampler3D isamplerCube isampler1DArray isampler2DArray usampler1D usampler2D usampler3D usamplerCube usampler1DArray usampler2DArray sampler2DRect sampler2DRectShadow isampler2DRect usampler2DRect samplerBuffer isamplerBuffer usamplerBuffer sampler2DMS isampler2DMS usampler2DMS sampler2DMSArray isampler2DMSArray usampler2DMSArray struct
300float int bool mat2 mat3 mat4 mat2x2 mat2x3 mat2x4 mat3x2 mat3x3 mat3x4 mat4x2 mat4x3 mat4x4 vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 uint uvec2 uvec3 uvec4 precision sampler2D sampler3D samplerCube sampler2DShadow samplerCubeShadow sampler2DArray sampler2DArrayShadow isampler2D isampler3D isamplerCube isampler2DArray usampler2D usampler3D usamplerCube usampler2DArray struct
310float int bool mat2 mat3 mat4 mat2x2 mat2x3 mat2x4 mat3x2 mat3x3 mat3x4 mat4x2 mat4x3 mat4x4 vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 uint uvec2 uvec3 uvec4 precision sampler2D sampler3D samplerCube sampler2DShadow samplerCubeShadow sampler2DArray sampler2DArrayShadow isampler2D isampler3D isamplerCube isampler2DArray usampler2D usampler3D usamplerCube usampler2DArray sampler2DMS isampler2DMS usampler2DMS image2DArray iimage2DArray uimage2DArray image2D iimage2D uimage2D image3D iimage3D uimage3D imageCube iimageCube uimageCube struct
320float int bool vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 uint uvec2 uvec3 uvec4 mat2 mat3 mat4 mat2x2 mat2x3 mat2x4 mat3x2 mat3x3 mat3x4 mat4x2 mat4x3 mat4x4 precision sampler2D sampler2DShadow sampler2DArray sampler2DArrayShadow isampler2D isampler2DArray usampler2D usampler2DArray sampler2DMS isampler2DMS usampler2DMS sampler2DMSArray isampler2DMSArray usampler2DMSArray sampler3D isampler3D usampler3D samplerCube samplerCubeShadow isamplerCube usamplerCube samplerCubeArray samplerCubeArrayShadow isamplerCubeArray usamplerCubeArray samplerBuffer isamplerBuffer usamplerBuffer image2D iimage2D uimage2D image2DArray iimage2DArray uimage2DArray image3D iimage3D uimage3D imageCube iimageCube uimageCube imageCubeArray iimageCubeArray uimageCubeArray imageBuffer iimageBuffer uimageBuffer struct
330mat2 mat3 mat4 mat2x2 mat2x3 mat2x4 mat3x2 mat3x3 mat3x4 mat4x2 mat4x3 mat4x4 vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 uint uvec2 uvec3 uvec4 precision sampler1D sampler2D sampler3D samplerCube sampler1DShadow sampler2DShadow samplerCubeShadow sampler1DArray sampler2DArray sampler1DArrayShadow sampler2DArrayShadow isampler1D isampler2D isampler3D isamplerCube isampler1DArray isampler2DArray usampler1D usampler2D usampler3D usamplerCube usampler1DArray usampler2DArray sampler2DRect sampler2DRectShadow isampler2DRect usampler2DRect samplerBuffer isamplerBuffer usamplerBuffer sampler2DMS isampler2DMS usampler2DMS sampler2DMSArray isampler2DMSArray usampler2DMSArray struct
400float double int bool mat2 mat3 mat4 dmat2 dmat3 dmat4 mat2x2 mat2x3 mat2x4 dmat2x2 dmat2x3 dmat2x4 mat3x2 mat3x3 mat3x4 dmat3x2 dmat3x3 dmat3x4 mat4x2 mat4x3 mat4x4 dmat4x2 dmat4x3 dmat4x4 vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 dvec2 dvec3 dvec4 uint uvec2 uvec3 uvec4 precision sampler1D sampler2D sampler3D samplerCube sampler1DShadow sampler2DShadow samplerCubeShadow sampler1DArray sampler2DArray sampler1DArrayShadow sampler2DArrayShadow isampler1D isampler2D isampler3D isamplerCube isampler1DArray isampler2DArray usampler1D usampler2D usampler3D usamplerCube usampler1DArray usampler2DArray sampler2DRect sampler2DRectShadow isampler2DRect usampler2DRect samplerBuffer isamplerBuffer usamplerBuffer sampler2DMS isampler2DMS usampler2DMS sampler2DMSArray isampler2DMSArray usampler2DMSArray samplerCubeArray samplerCubeArrayShadow isamplerCubeArray usamplerCubeArray struct
410float double int bool mat2 mat3 mat4 dmat2 dmat3 dmat4 mat2x2 mat2x3 mat2x4 dmat2x2 dmat2x3 dmat2x4 mat3x2 mat3x3 mat3x4 dmat3x2 dmat3x3 dmat3x4 mat4x2 mat4x3 mat4x4 dmat4x2 dmat4x3 dmat4x4 vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 dvec2 dvec3 dvec4 uint uvec2 uvec3 uvec4 precision sampler1D sampler2D sampler3D samplerCube sampler1DShadow sampler2DShadow samplerCubeShadow sampler1DArray sampler2DArray sampler1DArrayShadow sampler2DArrayShadow isampler1D isampler2D isampler3D isamplerCube isampler1DArray isampler2DArray usampler1D usampler2D usampler3D usamplerCube usampler1DArray usampler2DArray sampler2DRect sampler2DRectShadow isampler2DRect usampler2DRect samplerBuffer isamplerBuffer usamplerBuffer sampler2DMS isampler2DMS usampler2DMS sampler2DMSArray isampler2DMSArray usampler2DMSArray samplerCubeArray samplerCubeArrayShadow isamplerCubeArray usamplerCubeArray struct
420float double int bool mat2 mat3 mat4 dmat2 dmat3 dmat4 mat2x2 mat2x3 mat2x4 dmat2x2 dmat2x3 dmat2x4 mat3x2 mat3x3 mat3x4 dmat3x2 dmat3x3 dmat3x4 mat4x2 mat4x3 mat4x4 dmat4x2 dmat4x3 dmat4x4 vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 dvec2 dvec3 dvec4 uint uvec2 uvec3 uvec4 sampler1D sampler2D sampler3D samplerCube sampler1DShadow sampler2DShadow samplerCubeShadow sampler1DArray sampler2DArray sampler1DArrayShadow sampler2DArrayShadow isampler1D isampler2D isampler3D isamplerCube isampler1DArray isampler2DArray usampler1D usampler2D usampler3D usamplerCube usampler1DArray usampler2DArray sampler2DRect sampler2DRectShadow isampler2DRect usampler2DRect samplerBuffer isamplerBuffer usamplerBuffer sampler2DMS isampler2DMS usampler2DMS sampler2DMSArray isampler2DMSArray usampler2DMSArray samplerCubeArray samplerCubeArrayShadow isamplerCubeArray usamplerCubeArray image1D iimage1D uimage1D image2D iimage2D uimage2D image3D iimage3D uimage3D image2DRect iimage2DRect uimage2DRect imageCube iimageCube uimageCube imageBuffer iimageBuffer uimageBuffer image1DArray iimage1DArray uimage1DArray image2DArray iimage2DArray uimage2DArray imageCubeArray iimageCubeArray uimageCubeArray image2DMS iimage2DMS uimage2DMS image2DMSArray iimage2DMSArray uimage2DMSArray struct
430float double int bool mat2 mat3 mat4 dmat2 dmat3 dmat4 mat2x2 mat2x3 mat2x4 dmat2x2 dmat2x3 dmat2x4 mat3x2 mat3x3 mat3x4 dmat3x2 dmat3x3 dmat3x4 mat4x2 mat4x3 mat4x4 dmat4x2 dmat4x3 dmat4x4 vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 dvec2 dvec3 dvec4 uint uvec2 uvec3 uvec4 sampler1D sampler2D sampler3D samplerCube sampler1DShadow sampler2DShadow samplerCubeShadow sampler1DArray sampler2DArray sampler1DArrayShadow sampler2DArrayShadow isampler1D isampler2D isampler3D isamplerCube isampler1DArray isampler2DArray usampler1D usampler2D usampler3D usamplerCube usampler1DArray usampler2DArray sampler2DRect sampler2DRectShadow isampler2DRect usampler2DRect samplerBuffer isamplerBuffer usamplerBuffer sampler2DMS isampler2DMS usampler2DMS sampler2DMSArray isampler2DMSArray usampler2DMSArray samplerCubeArray samplerCubeArrayShadow isamplerCubeArray usamplerCubeArray image1D iimage1D uimage1D image2D iimage2D uimage2D image3D iimage3D uimage3D image2DRect iimage2DRect uimage2DRect imageCube iimageCube uimageCube imageBuffer iimageBuffer uimageBuffer image1DArray iimage1DArray uimage1DArray image2DArray iimage2DArray uimage2DArray imageCubeArray iimageCubeArray uimageCubeArray image2DMS iimage2DMS uimage2DMS image2DMSArray iimage2DMSArray uimage2DMSArray struct
440float double int bool mat2 mat3 mat4 dmat2 dmat3 dmat4 mat2x2 mat2x3 mat2x4 dmat2x2 dmat2x3 dmat2x4 mat3x2 mat3x3 mat3x4 dmat3x2 dmat3x3 dmat3x4 mat4x2 mat4x3 mat4x4 dmat4x2 dmat4x3 dmat4x4 vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 dvec2 dvec3 dvec4 uint uvec2 uvec3 uvec4 sampler1D sampler2D sampler3D samplerCube sampler1DShadow sampler2DShadow samplerCubeShadow sampler1DArray sampler2DArray sampler1DArrayShadow sampler2DArrayShadow isampler1D isampler2D isampler3D isamplerCube isampler1DArray isampler2DArray usampler1D usampler2D usampler3D usamplerCube usampler1DArray usampler2DArray sampler2DRect sampler2DRectShadow isampler2DRect usampler2DRect samplerBuffer isamplerBuffer usamplerBuffer sampler2DMS isampler2DMS usampler2DMS sampler2DMSArray isampler2DMSArray usampler2DMSArray samplerCubeArray samplerCubeArrayShadow isamplerCubeArray usamplerCubeArray image1D iimage1D uimage1D image2D iimage2D uimage2D image3D iimage3D uimage3D image2DRect iimage2DRect uimage2DRect imageCube iimageCube uimageCube imageBuffer iimageBuffer uimageBuffer image1DArray iimage1DArray uimage1DArray image2DArray iimage2DArray uimage2DArray imageCubeArray iimageCubeArray uimageCubeArray image2DMS iimage2DMS uimage2DMS image2DMSArray iimage2DMSArray uimage2DMSArray struct
450float double int bool mat2 mat3 mat4 dmat2 dmat3 dmat4 mat2x2 mat2x3 mat2x4 dmat2x2 dmat2x3 dmat2x4 mat3x2 mat3x3 mat3x4 dmat3x2 dmat3x3 dmat3x4 mat4x2 mat4x3 mat4x4 dmat4x2 dmat4x3 dmat4x4 vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 dvec2 dvec3 dvec4 uint uvec2 uvec3 uvec4 sampler1D sampler2D sampler3D samplerCube sampler1DShadow sampler2DShadow samplerCubeShadow sampler1DArray sampler2DArray sampler1DArrayShadow sampler2DArrayShadow isampler1D isampler2D isampler3D isamplerCube isampler1DArray isampler2DArray usampler1D usampler2D usampler3D usamplerCube usampler1DArray usampler2DArray sampler2DRect sampler2DRectShadow isampler2DRect usampler2DRect samplerBuffer isamplerBuffer usamplerBuffer sampler2DMS isampler2DMS usampler2DMS sampler2DMSArray isampler2DMSArray usampler2DMSArray samplerCubeArray samplerCubeArrayShadow isamplerCubeArray usamplerCubeArray image1D iimage1D uimage1D image2D iimage2D uimage2D image3D iimage3D uimage3D image2DRect iimage2DRect uimage2DRect imageCube iimageCube uimageCube imageBuffer iimageBuffer uimageBuffer image1DArray iimage1DArray uimage1DArray image2DArray iimage2DArray uimage2DArray imageCubeArray iimageCubeArray uimageCubeArray image2DMS iimage2DMS uimage2DMS image2DMSArray iimage2DMSArray uimage2DMSArray struct
460float double int bool mat2 mat3 mat4 dmat2 dmat3 dmat4 mat2x2 mat2x3 mat2x4 dmat2x2 dmat2x3 dmat2x4 mat3x2 mat3x3 mat3x4 dmat3x2 dmat3x3 dmat3x4 mat4x2 mat4x3 mat4x4 dmat4x2 dmat4x3 dmat4x4 vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 dvec2 dvec3 dvec4 uint uvec2 uvec3 uvec4 sampler1D sampler2D sampler3D samplerCube sampler1DShadow sampler2DShadow samplerCubeShadow sampler1DArray sampler2DArray sampler1DArrayShadow sampler2DArrayShadow isampler1D isampler2D isampler3D isamplerCube isampler1DArray isampler2DArray usampler1D usampler2D usampler3D usamplerCube usampler1DArray usampler2DArray sampler2DRect sampler2DRectShadow isampler2DRect usampler2DRect samplerBuffer isamplerBuffer usamplerBuffer sampler2DMS isampler2DMS usampler2DMS sampler2DMSArray isampler2DMSArray usampler2DMSArray samplerCubeArray samplerCubeArrayShadow isamplerCubeArray usamplerCubeArray image1D iimage1D uimage1D image2D iimage2D uimage2D image3D iimage3D uimage3D image2DRect iimage2DRect uimage2DRect imageCube iimageCube uimageCube imageBuffer iimageBuffer uimageBuffer image1DArray iimage1DArray uimage1DArray image2DArray iimage2DArray uimage2DArray imageCubeArray iimageCubeArray uimageCubeArray image2DMS iimage2DMS uimage2DMS image2DMSArray iimage2DMSArray uimage2DMSArray struct

OpenGL Version

Once you scan your system, you can view the output log to determine the OpenGL version supported by your device. For example, the following output log shows an Nvidia GPU that supports OpenGL 4.6. This is the newest version of OpenGL, and should have access to most features and capabilities supported by the platform.

<Render3D.DeviceCaps>

Version : 4.6.0 NVIDIA 430.86
Major, Minor: 4, 6
LanguageVersion: 4.60 NVIDIA
Major, Minor: 4, 60
MaxTextureWidth: 32768
MaxTextureHeight: 32768
MaxViewportWidth: 32768
MaxViewportHeight: 32768

<BaseSystemInfo>

CPU RAM: 16228 MB
CPU Count: 1
Cores: 8
MHz: 2208
GPU Count: 2
GPU RAM: 1024 MB
GPU RAM: 4095 MB

GLSL Version

It's also very important to know which GLSL shading language versions are supported by your machine. You can find this at the top of the output log. When you run the hardware capability command, Simdify compiles a shader for every known GLSL version and profile. You get a full report on which shading language versions will actually compile on your GPU.

Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>
Compiling Program 0x000002B69B9DC7D0 0x0000000000000000 <TestGlProfile>

--- <Executing Command 'ApplicationDisplaySystemHardwareCapabilities'> ---

<Supported GLSL Compilers>

Your graphics card supports profile: 100
Your graphics card supports profile: 110
Your graphics card supports profile: 120
Your graphics card supports profile: 130
Your graphics card supports profile: 140
Your graphics card supports profile: 150 compatibility
Your graphics card supports profile: 150 core
Your graphics card supports profile: 300 es
Your graphics card supports profile: 310 es
Your graphics card supports profile: 320 es
Your graphics card supports profile: 330 compatibility
Your graphics card supports profile: 330 core
Your graphics card supports profile: 400 compatibility
Your graphics card supports profile: 400 core
Your graphics card supports profile: 410 compatibility
Your graphics card supports profile: 410 core
Your graphics card supports profile: 420 compatibility
Your graphics card supports profile: 420 core
Your graphics card supports profile: 430 compatibility
Your graphics card supports profile: 430 core
Your graphics card supports profile: 440 compatibility
Your graphics card supports profile: 440 core
Your graphics card supports profile: 450 compatibility
Your graphics card supports profile: 450 core
Your graphics card supports profile: 460 compatibility
Your graphics card supports profile: 460 core

OpenGL Hardware Limits

What is the maximum size texture that you can use in a shader or OpenGL application on your device? How many uniforms can you declare? You can learn that by looking at the glGet queries section of the report.

<OpenGL glGet Queries>

GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX : 6067440
GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX : 6291456
GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX : 0
GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX : 0
GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX : 6291456
GL_MAX : 0
GL_MAX_3D_TEXTURE_SIZE : 16384
GL_MAX_3D_TEXTURE_SIZE_EXT : 16384
GL_MAX_4D_TEXTURE_SIZE_SGIS : 0
GL_MAX_ACTIVE_LIGHTS_SGIX : 0
GL_MAX_ARRAY_TEXTURE_LAYERS : 2048
GL_MAX_ARRAY_TEXTURE_LAYERS_EXT : 2048
GL_MAX_ASYNC_DRAW_PIXELS_SGIX : 0
GL_MAX_ASYNC_HISTOGRAM_SGIX : 0
GL_MAX_ASYNC_READ_PIXELS_SGIX : 0
GL_MAX_ASYNC_TEX_IMAGE_SGIX : 0
GL_MAX_ATOMIC_COUNTER_BUFFER_BINDINGS : 8
GL_MAX_ATOMIC_COUNTER_BUFFER_SIZE : 65536
GL_MAX_BINDABLE_UNIFORM_SIZE_EXT : 65536
GL_MAX_CLIP_DISTANCES : 8
GL_MAX_CLIPMAP_DEPTH_SGIX : 0
GL_MAX_CLIPMAP_VIRTUAL_DEPTH_SGIX : 0
GL_MAX_COLOR_ATTACHMENTS : 8
GL_MAX_COLOR_ATTACHMENTS_EXT : 8
GL_MAX_COLOR_MATRIX_STACK_DEPTH : 2
GL_MAX_COLOR_MATRIX_STACK_DEPTH_SGI : 2
GL_MAX_COLOR_TEXTURE_SAMPLES : 32
GL_MAX_COMBINED_ATOMIC_COUNTER_BUFFERS : 48
GL_MAX_COMBINED_ATOMIC_COUNTERS : 98304
GL_MAX_COMBINED_CLIP_AND_CULL_DISTANCES : 8
GL_MAX_COMBINED_COMPUTE_UNIFORM_COMPONENTS : 231424
GL_MAX_COMBINED_DIMENSIONS : 0
GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS : 233472
GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS : 231424
GL_MAX_COMBINED_IMAGE_UNIFORMS : 48
GL_MAX_COMBINED_IMAGE_UNITS_AND_FRAGMENT_OUTPUTS : 16
GL_MAX_COMBINED_IMAGE_UNITS_AND_FRAGMENT_OUTPUTS_EXT : 16
GL_MAX_COMBINED_SHADER_OUTPUT_RESOURCES : 16
GL_MAX_COMBINED_SHADER_STORAGE_BLOCKS : 96
GL_MAX_COMBINED_TESS_CONTROL_UNIFORM_COMPONENTS : 231424
GL_MAX_COMBINED_TESS_EVALUATION_UNIFORM_COMPONENTS : 231424
GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS : 192
GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB : 192
GL_MAX_COMBINED_UNIFORM_BLOCKS : 84
GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS : 233472
GL_MAX_COMPUTE_ATOMIC_COUNTER_BUFFERS : 8
GL_MAX_COMPUTE_ATOMIC_COUNTERS : 16384
GL_MAX_COMPUTE_FIXED_GROUP_INVOCATIONS_ARB : 1024
GL_MAX_COMPUTE_FIXED_GROUP_SIZE_ARB : 1024
GL_MAX_COMPUTE_IMAGE_UNIFORMS : 8
GL_MAX_COMPUTE_SHADER_STORAGE_BLOCKS : 16
GL_MAX_COMPUTE_SHARED_MEMORY_SIZE : 49152
GL_MAX_COMPUTE_TEXTURE_IMAGE_UNITS : 32
GL_MAX_COMPUTE_UNIFORM_BLOCKS : 14
GL_MAX_COMPUTE_UNIFORM_COMPONENTS : 2048
GL_MAX_COMPUTE_VARIABLE_GROUP_INVOCATIONS_ARB : 1024
GL_MAX_COMPUTE_VARIABLE_GROUP_SIZE_ARB : 1024
GL_MAX_COMPUTE_WORK_GROUP_COUNT : 2147483647
GL_MAX_COMPUTE_WORK_GROUP_INVOCATIONS : 1024
GL_MAX_COMPUTE_WORK_GROUP_SIZE : 1024
GL_MAX_CONVOLUTION_HEIGHT : 0
GL_MAX_CONVOLUTION_HEIGHT_EXT : 0
GL_MAX_CONVOLUTION_WIDTH : 0
GL_MAX_CONVOLUTION_WIDTH_EXT : 0
GL_MAX_CUBE_MAP_TEXTURE_SIZE : 32768
GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB : 32768
GL_MAX_CUBE_MAP_TEXTURE_SIZE_EXT : 32768
GL_MAX_CULL_DISTANCES : 8
GL_MAX_DEBUG_GROUP_STACK_DEPTH : 64
GL_MAX_DEBUG_LOGGED_MESSAGES : 128
GL_MAX_DEBUG_LOGGED_MESSAGES_AMD : 128
GL_MAX_DEBUG_LOGGED_MESSAGES_ARB : 128
GL_MAX_DEBUG_MESSAGE_LENGTH : 1024
GL_MAX_DEBUG_MESSAGE_LENGTH_AMD : 1024
GL_MAX_DEBUG_MESSAGE_LENGTH_ARB : 1024
GL_MAX_DEEP_3D_TEXTURE_DEPTH_NV : 0
GL_MAX_DEEP_3D_TEXTURE_WIDTH_HEIGHT_NV : 0
GL_MAX_DEFORMATION_ORDER_SGIX : 0
GL_MAX_DEPTH : 0
GL_MAX_DEPTH_TEXTURE_SAMPLES : 32
GL_MAX_DRAW_BUFFERS : 8
GL_MAX_DRAW_BUFFERS_ARB : 8
GL_MAX_DRAW_BUFFERS_ATI : 8
GL_MAX_DUAL_SOURCE_DRAW_BUFFERS : 1
GL_MAX_ELEMENT_INDEX : -1
GL_MAX_ELEMENTS_INDICES : 1048576
GL_MAX_ELEMENTS_INDICES_EXT : 1048576
GL_MAX_ELEMENTS_VERTICES : 1048576
GL_MAX_ELEMENTS_VERTICES_EXT : 1048576
GL_MAX_EXT : 0
GL_MAX_FOG_FUNC_POINTS_SGIS : 0
GL_MAX_FRAGMENT_ATOMIC_COUNTER_BUFFERS : 8
GL_MAX_FRAGMENT_ATOMIC_COUNTERS : 16384
GL_MAX_FRAGMENT_BINDABLE_UNIFORMS_EXT : 14
GL_MAX_FRAGMENT_IMAGE_UNIFORMS : 8
GL_MAX_FRAGMENT_INPUT_COMPONENTS : 128
GL_MAX_FRAGMENT_INTERPOLATION_OFFSET : 1
GL_MAX_FRAGMENT_INTERPOLATION_OFFSET_NV : 1
GL_MAX_FRAGMENT_LIGHTS_SGIX : 0
GL_MAX_FRAGMENT_PROGRAM_LOCAL_PARAMETERS_NV : 1024
GL_MAX_FRAGMENT_SHADER_STORAGE_BLOCKS : 16
GL_MAX_FRAGMENT_UNIFORM_BLOCKS : 14
GL_MAX_FRAGMENT_UNIFORM_COMPONENTS : 4096
GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB : 4096
GL_MAX_FRAGMENT_UNIFORM_VECTORS : 1024
GL_MAX_FRAMEBUFFER_HEIGHT : 32768
GL_MAX_FRAMEBUFFER_LAYERS : 2048
GL_MAX_FRAMEBUFFER_SAMPLES : 32
GL_MAX_FRAMEBUFFER_WIDTH : 32768
GL_MAX_FRAMEZOOM_FACTOR_SGIX : 0
GL_MAX_GENERAL_COMBINERS_NV : 8
GL_MAX_GEOMETRY_ATOMIC_COUNTER_BUFFERS : 8
GL_MAX_GEOMETRY_ATOMIC_COUNTERS : 16384
GL_MAX_GEOMETRY_BINDABLE_UNIFORMS_EXT : 14
GL_MAX_GEOMETRY_IMAGE_UNIFORMS : 8
GL_MAX_GEOMETRY_INPUT_COMPONENTS : 128
GL_MAX_GEOMETRY_OUTPUT_COMPONENTS : 128
GL_MAX_GEOMETRY_OUTPUT_VERTICES : 1024
GL_MAX_GEOMETRY_OUTPUT_VERTICES_ARB : 1024
GL_MAX_GEOMETRY_OUTPUT_VERTICES_EXT : 1024
GL_MAX_GEOMETRY_PROGRAM_INVOCATIONS_NV : 32
GL_MAX_GEOMETRY_SHADER_INVOCATIONS : 32
GL_MAX_GEOMETRY_SHADER_STORAGE_BLOCKS : 16
GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS : 32
GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_ARB : 32
GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_EXT : 32
GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS : 1024
GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS_ARB : 1024
GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS_EXT : 1024
GL_MAX_GEOMETRY_UNIFORM_BLOCKS : 14
GL_MAX_GEOMETRY_UNIFORM_COMPONENTS : 2048
GL_MAX_GEOMETRY_UNIFORM_COMPONENTS_ARB : 2048
GL_MAX_GEOMETRY_UNIFORM_COMPONENTS_EXT : 2048
GL_MAX_GEOMETRY_VARYING_COMPONENTS_ARB : 124
GL_MAX_GEOMETRY_VARYING_COMPONENTS_EXT : 124
GL_MAX_HEIGHT : 0
GL_MAX_IMAGE_SAMPLES : 32
GL_MAX_IMAGE_SAMPLES_EXT : 32
GL_MAX_IMAGE_UNITS : 8
GL_MAX_IMAGE_UNITS_EXT : 8
GL_MAX_INTEGER_SAMPLES : 32
GL_MAX_LABEL_LENGTH : 256
GL_MAX_LAYERS : 0
GL_MAX_MAP_TESSELLATION_NV : 0
GL_MAX_MATRIX_PALETTE_STACK_DEPTH_ARB : 0
GL_MAX_MULTISAMPLE_COVERAGE_MODES_NV : 5
GL_MAX_NAME_LENGTH : 0
GL_MAX_NUM_ACTIVE_VARIABLES : 0
GL_MAX_NUM_COMPATIBLE_SUBROUTINES : 0
GL_MAX_OPTIMIZED_VERTEX_SHADER_INSTRUCTIONS_EXT : 0
GL_MAX_OPTIMIZED_VERTEX_SHADER_INVARIANTS_EXT : 0
GL_MAX_OPTIMIZED_VERTEX_SHADER_LOCAL_CONSTANTS_EXT : 0
GL_MAX_OPTIMIZED_VERTEX_SHADER_LOCALS_EXT : 0
GL_MAX_OPTIMIZED_VERTEX_SHADER_VARIANTS_EXT : 0
GL_MAX_PALETTE_MATRICES_ARB : 32
GL_MAX_PATCH_VERTICES : 32
GL_MAX_PIXEL_TRANSFORM_2D_STACK_DEPTH_EXT : 0
GL_MAX_PN_TRIANGLES_TESSELATION_LEVEL_ATI : 0
GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB : 0
GL_MAX_PROGRAM_ALU_INSTRUCTIONS_ARB : 0
GL_MAX_PROGRAM_ATTRIB_COMPONENTS_NV : 0
GL_MAX_PROGRAM_ATTRIBS_ARB : 0
GL_MAX_PROGRAM_CALL_DEPTH_NV : 0
GL_MAX_PROGRAM_ENV_PARAMETERS_ARB : 0
GL_MAX_PROGRAM_EXEC_INSTRUCTIONS_NV : 0
GL_MAX_PROGRAM_GENERIC_ATTRIBS_NV : 0
GL_MAX_PROGRAM_GENERIC_RESULTS_NV : 0
GL_MAX_PROGRAM_IF_DEPTH_NV : 0
GL_MAX_PROGRAM_INSTRUCTIONS_ARB : 0
GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB : 0
GL_MAX_PROGRAM_LOOP_COUNT_NV : 0
GL_MAX_PROGRAM_LOOP_DEPTH_NV : 0
GL_MAX_PROGRAM_MATRICES_ARB : 8
GL_MAX_PROGRAM_MATRIX_STACK_DEPTH_ARB : 1
GL_MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB : 0
GL_MAX_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB : 0
GL_MAX_PROGRAM_NATIVE_ATTRIBS_ARB : 0
GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB : 0
GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB : 0
GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB : 0
GL_MAX_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB : 0
GL_MAX_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB : 0
GL_MAX_PROGRAM_OUTPUT_VERTICES_NV : 0
GL_MAX_PROGRAM_PARAMETER_BUFFER_BINDINGS_NV : 14
GL_MAX_PROGRAM_PARAMETER_BUFFER_SIZE_NV : 16384
GL_MAX_PROGRAM_PARAMETERS_ARB : 0
GL_MAX_PROGRAM_PATCH_ATTRIBS_NV : 0
GL_MAX_PROGRAM_RESULT_COMPONENTS_NV : 0
GL_MAX_PROGRAM_SUBROUTINE_NUM_NV : 0
GL_MAX_PROGRAM_SUBROUTINE_PARAMETERS_NV : 0
GL_MAX_PROGRAM_TEMPORARIES_ARB : 0
GL_MAX_PROGRAM_TEX_INDIRECTIONS_ARB : 0
GL_MAX_PROGRAM_TEX_INSTRUCTIONS_ARB : 0
GL_MAX_PROGRAM_TEXEL_OFFSET : 7
GL_MAX_PROGRAM_TEXEL_OFFSET_EXT : 7
GL_MAX_PROGRAM_TEXEL_OFFSET_NV : 7
GL_MAX_PROGRAM_TEXTURE_GATHER_COMPONENTS_ARB : 4
GL_MAX_PROGRAM_TEXTURE_GATHER_OFFSET : 31
GL_MAX_PROGRAM_TEXTURE_GATHER_OFFSET_ARB : 31
GL_MAX_PROGRAM_TEXTURE_GATHER_OFFSET_NV : 31
GL_MAX_PROGRAM_TOTAL_OUTPUT_COMPONENTS_NV : 0
GL_MAX_RASTER_SAMPLES_EXT : 16
GL_MAX_RATIONAL_EVAL_ORDER_NV : 0
GL_MAX_RECTANGLE_TEXTURE_SIZE : 32768
GL_MAX_RECTANGLE_TEXTURE_SIZE_ARB : 32768
GL_MAX_RECTANGLE_TEXTURE_SIZE_NV : 32768
GL_MAX_RENDERBUFFER_SIZE : 32768
GL_MAX_RENDERBUFFER_SIZE_EXT : 32768
GL_MAX_SAMPLE_MASK_WORDS : 2
GL_MAX_SAMPLE_MASK_WORDS_NV : 2
GL_MAX_SAMPLES : 32
GL_MAX_SAMPLES_EXT : 32
GL_MAX_SERVER_WAIT_TIMEOUT : -1
GL_MAX_SHADER_BUFFER_ADDRESS_NV : -1
GL_MAX_SHADER_STORAGE_BLOCK_SIZE : 2147483647
GL_MAX_SHADER_STORAGE_BUFFER_BINDINGS : 96
GL_MAX_SHININESS_NV : 128
GL_MAX_SPARSE_3D_TEXTURE_SIZE_AMD : 16384
GL_MAX_SPARSE_3D_TEXTURE_SIZE_ARB : 16384
GL_MAX_SPARSE_ARRAY_TEXTURE_LAYERS : 2048
GL_MAX_SPARSE_ARRAY_TEXTURE_LAYERS_ARB : 2048
GL_MAX_SPARSE_TEXTURE_SIZE_AMD : 32768
GL_MAX_SPARSE_TEXTURE_SIZE_ARB : 32768
GL_MAX_SPOT_EXPONENT_NV : 128
GL_MAX_SUBPIXEL_PRECISION_BIAS_BITS_NV : 8
GL_MAX_SUBROUTINE_UNIFORM_LOCATIONS : 1024
GL_MAX_SUBROUTINES : 1024
GL_MAX_TESS_CONTROL_ATOMIC_COUNTER_BUFFERS : 8
GL_MAX_TESS_CONTROL_ATOMIC_COUNTERS : 16384
GL_MAX_TESS_CONTROL_IMAGE_UNIFORMS : 8
GL_MAX_TESS_CONTROL_INPUT_COMPONENTS : 128
GL_MAX_TESS_CONTROL_OUTPUT_COMPONENTS : 128
GL_MAX_TESS_CONTROL_SHADER_STORAGE_BLOCKS : 16
GL_MAX_TESS_CONTROL_TEXTURE_IMAGE_UNITS : 32
GL_MAX_TESS_CONTROL_TOTAL_OUTPUT_COMPONENTS : 4216
GL_MAX_TESS_CONTROL_UNIFORM_BLOCKS : 14
GL_MAX_TESS_CONTROL_UNIFORM_COMPONENTS : 2048
GL_MAX_TESS_EVALUATION_ATOMIC_COUNTER_BUFFERS : 8
GL_MAX_TESS_EVALUATION_ATOMIC_COUNTERS : 16384
GL_MAX_TESS_EVALUATION_IMAGE_UNIFORMS : 8
GL_MAX_TESS_EVALUATION_INPUT_COMPONENTS : 128
GL_MAX_TESS_EVALUATION_OUTPUT_COMPONENTS : 128
GL_MAX_TESS_EVALUATION_SHADER_STORAGE_BLOCKS : 16
GL_MAX_TESS_EVALUATION_TEXTURE_IMAGE_UNITS : 32
GL_MAX_TESS_EVALUATION_UNIFORM_BLOCKS : 14
GL_MAX_TESS_EVALUATION_UNIFORM_COMPONENTS : 2048
GL_MAX_TESS_GEN_LEVEL : 64
GL_MAX_TESS_PATCH_COMPONENTS : 120
GL_MAX_TEXTURE_BUFFER_SIZE : 134217728
GL_MAX_TEXTURE_BUFFER_SIZE_ARB : 134217728
GL_MAX_TEXTURE_BUFFER_SIZE_EXT : 134217728
GL_MAX_TEXTURE_COORDS : 8
GL_MAX_TEXTURE_COORDS_ARB : 8
GL_MAX_TEXTURE_COORDS_NV : 8
GL_MAX_TEXTURE_IMAGE_UNITS : 32
GL_MAX_TEXTURE_IMAGE_UNITS_ARB : 32
GL_MAX_TEXTURE_IMAGE_UNITS_NV : 32
GL_MAX_TEXTURE_LOD_BIAS : 15
GL_MAX_TEXTURE_LOD_BIAS_EXT : 15
GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT : 16
GL_MAX_TEXTURE_UNITS : 4
GL_MAX_TEXTURE_UNITS_ARB : 4
GL_MAX_TRACK_MATRICES_NV : 8
GL_MAX_TRACK_MATRIX_STACK_DEPTH_NV : 1
GL_MAX_TRANSFORM_FEEDBACK_BUFFERS : 4
GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS : 128
GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS_EXT : 128
GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS_NV : 128
GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS : 4
GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS_EXT : 4
GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS_NV : 4
GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS : 4
GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS_EXT : 4
GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS_NV : 4
GL_MAX_UNIFORM_BLOCK_SIZE : 65536
GL_MAX_UNIFORM_BUFFER_BINDINGS : 84
GL_MAX_UNIFORM_LOCATIONS : 65536
GL_MAX_VARYING_COMPONENTS : 124
GL_MAX_VARYING_COMPONENTS_EXT : 124
GL_MAX_VARYING_FLOATS : 124
GL_MAX_VARYING_FLOATS_ARB : 124
GL_MAX_VARYING_VECTORS : 31
GL_MAX_VERTEX_ARRAY_RANGE_ELEMENT_NV : 1048575
GL_MAX_VERTEX_ATOMIC_COUNTER_BUFFERS : 8
GL_MAX_VERTEX_ATOMIC_COUNTERS : 16384
GL_MAX_VERTEX_ATTRIB_BINDINGS : 16
GL_MAX_VERTEX_ATTRIB_RELATIVE_OFFSET : 2047
GL_MAX_VERTEX_ATTRIB_STRIDE : 2048
GL_MAX_VERTEX_ATTRIBS : 16
GL_MAX_VERTEX_ATTRIBS_ARB : 16
GL_MAX_VERTEX_BINDABLE_UNIFORMS_EXT : 14
GL_MAX_VERTEX_HINT_PGI : 0
GL_MAX_VERTEX_IMAGE_UNIFORMS : 8
GL_MAX_VERTEX_OUTPUT_COMPONENTS : 128
GL_MAX_VERTEX_SHADER_INSTRUCTIONS_EXT : 0
GL_MAX_VERTEX_SHADER_INVARIANTS_EXT : 0
GL_MAX_VERTEX_SHADER_LOCAL_CONSTANTS_EXT : 0
GL_MAX_VERTEX_SHADER_LOCALS_EXT : 0
GL_MAX_VERTEX_SHADER_STORAGE_BLOCKS : 16
GL_MAX_VERTEX_SHADER_VARIANTS_EXT : 0
GL_MAX_VERTEX_STREAMS : 4
GL_MAX_VERTEX_STREAMS_ATI : 0
GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS : 32
GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB : 32
GL_MAX_VERTEX_UNIFORM_BLOCKS : 14
GL_MAX_VERTEX_UNIFORM_COMPONENTS : 4096
GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB : 4096
GL_MAX_VERTEX_UNIFORM_VECTORS : 1024
GL_MAX_VERTEX_UNITS_ARB : 4
GL_MAX_VERTEX_VARYING_COMPONENTS_ARB : 124
GL_MAX_VERTEX_VARYING_COMPONENTS_EXT : 124
GL_MAX_VIEWPORTS : 16
GL_MAX_WIDTH : 0

OpenGL Extensions

Finally, as discussed above, a lot of core and extended functionality is implemented in extensions. The report contains a complete list of those as well.

<Extensions>

GL_SGIS_generate_mipmap
GL_ARB_shading_language_100
GL_NVX_conditional_render
GL_EXT_texture_lod_bias
GL_EXT_draw_range_elements
GL_NV_shader_atomic_int64
GL_EXT_texture_env_add
GL_ARB_texture_env_add
GL_ARB_shader_group_vote
GL_ARB_buffer_storage
GL_NV_feature_query
GL_NV_transform_feedback
GL_ARB_texture_compression
GL_NV_texture_shader
GL_EXT_separate_shader_objects
GL_NV_vertex_buffer_unified_memory
GL_NV_vertex_program
GL_NV_conditional_render
GL_ARB_transform_feedback2
GL_NV_conservative_raster_pre_snap_triangles
GL_EXT_shadow_funcs
GL_ARB_transform_feedback3
GL_NV_bindless_multi_draw_indirect_count
GL_NV_shader_thread_shuffle
GL_NV_draw_texture
GL_NV_clip_space_w_scaling
GL_NV_fragment_program
GL_ARB_indirect_parameters
GL_EXT_texture_lod
GL_ARB_texture_query_lod
GL_ARB_query_buffer_object
GL_NV_path_rendering_shared_edge
GL_EXT_stencil_two_side
GL_ARB_texture_env_combine
GL_ARB_shading_language_420pack
GL_ARB_seamless_cube_map
GL_ARB_window_pos
GL_ARB_texture_env_dot3
GL_ARB_shader_objects
GL_EXT_texture_buffer_object
GL_ARB_texture_buffer_object
GL_NV_scissor_exclusive
GL_EXT_texture_storage
GL_ARB_texture_storage
GL_ARB_shading_language_include
GL_NV_gpu_program4_1
GL_NV_fragment_coverage_to_color
GL_NV_query_resource
GL_ARB_texture_barrier
GL_ARB_direct_state_access
GL_ARB_arrays_of_arrays
GL_NV_gpu_program5_mem_extended
GL_NV_depth_buffer_float
GL_NV_command_list
GL_EXT_texture_filter_minmax
GL_ARB_texture_filter_minmax
GL_EXT_vertex_array_bgra
GL_NV_vertex_array_range2
GL_EXT_semaphore_win32
GL_ARB_tessellation_shader
GL_NV_bindless_multi_draw_indirect
GL_ARB_gpu_shader_fp64
GL_ARB_geometry_shader4
GL_ARB_clear_texture
GL_EXT_texture_env_dot3
GL_ARB_separate_shader_objects
GL_EXT_texture3D
GL_AMD_vertex_shader_viewport_index
GL_ARB_compatibility
GL_NVX_nvenc_interop
GL_EXT_texture_sRGB
GL_SGIX_depth_texture
GL_ARB_fragment_program_shadow
GL_NV_internalformat_sample_query
GL_NVX_gpu_memory_info
GL_NV_transform_feedback2
GL_NV_fence
GL_ARB_stencil_texturing
GL_EXT_texture_edge_clamp
GL_ARB_texture_border_clamp
GL_NV_shader_buffer_load
GL_EXT_blend_subtract
GL_EXT_texture_swizzle
GL_EXT_framebuffer_multisample
GL_ARB_texture_swizzle
GL_ARB_get_program_binary
GL_ARB_ES3_2_compatibility
GL_ARB_vertex_array_bgra
GL_WIN_swap_hint
GL_EXT_texture_sRGB_decode
GL_ARB_parallel_shader_compile
GL_OVR_multiview
GL_OVR_multiview2
GL_NV_texture_compression_vtc
GL_ARB_vertex_type_10f_11f_11f_rev
GL_ARB_imaging
GL_ARB_shader_viewport_layer_array
GL_S3_s3tc
GL_NV_gpu_program_fp64
GL_ARB_conservative_depth
GL_ARB_texture_gather
GL_ARB_fragment_shader
GL_ARB_shader_atomic_counters
GL_EXT_memory_object
GL_ARB_multisample
GL_ARB_viewport_array
GL_ARB_vertex_program
GL_NV_sample_locations
GL_EXT_texture_compression_latc
GL_ARB_color_buffer_float
GL_EXT_texture_mirror_clamp
GL_NV_geometry_shader4
GL_EXT_semaphore
GL_ARB_texture_rg
GL_ARB_shader_clock
GL_EXT_bgra
GL_ARB_sync
GL_NV_representative_fragment_test
GL_ARB_shadow
GL_KHR_context_flush_control
GL_ARB_texture_buffer_object_rgb32
GL_EXT_geometry_shader4
GL_ARB_pixel_buffer_object
GL_ARB_timer_query
GL_ARB_texture_cube_map_array
GL_NV_vertex_array_range
GL_ARB_texture_rectangle
GL_ARB_shader_image_load_store
GL_SGIX_shadow
GL_ARB_clip_control
GL_ARB_framebuffer_sRGB
GL_ARB_copy_buffer
GL_ARB_shader_storage_buffer_object
GL_KHR_parallel_shader_compile
GL_ARB_gpu_shader5
GL_ARB_sparse_texture
GL_ARB_texture_rgb10_a2ui
GL_ARB_occlusion_query
GL_EXT_texture_cube_map
GL_ATI_draw_buffers
GL_ARB_vertex_attrib_64bit
GL_EXT_post_depth_coverage
GL_ARB_transform_feedback_overflow_query
GL_ARB_spirv_extensions
GL_ARB_gpu_shader_int64
GL_EXT_timer_query
GL_SUN_slice_accum
GL_ARB_explicit_uniform_location
GL_NVX_multigpu_info
GL_NV_viewport_array2
GL_EXT_memory_object_win32
GL_EXT_framebuffer_sRGB
GL_EXT_texture_object
GL_EXT_framebuffer_object
GL_NV_framebuffer_multisample_coverage
GL_NV_fill_rectangle
GL_NV_explicit_multisample
GL_ARB_invalidate_subdata
GL_KHR_robust_buffer_access_behavior
GL_NV_shader_texture_footprint
GL_NV_memory_attachment
GL_ARB_texture_float
GL_ARB_map_buffer_alignment
GL_ARB_shading_language_packing
GL_ARB_texture_cube_map
GL_ARB_compute_shader
GL_ARB_multi_draw_indirect
GL_ARB_fragment_layer_viewport
GL_ARB_blend_func_extended
GL_EXT_compiled_vertex_array
GL_ARB_draw_buffers_blend
GL_ARB_multitexture
GL_NV_shader_thread_group
GL_NV_depth_clamp
GL_NV_texture_shader2
GL_NV_register_combiners2
GL_ARB_sparse_buffer
GL_NV_texture_shader3
GL_NV_shader_atomic_counters
GL_ARB_texture_query_levels
GL_ARB_framebuffer_no_attachments
GL_EXT_packed_float
GL_ARB_cull_distance
GL_NV_vertex_program1_1
GL_EXT_gpu_shader4
GL_EXT_fog_coord
GL_ARB_depth_buffer_float
GL_ARB_base_instance
GL_NV_fragment_program_option
GL_EXT_stencil_wrap
GL_NV_blend_minmax_factor
GL_EXT_blend_color
GL_EXT_shader_image_load_store
GL_EXT_blend_minmax
GL_NV_uniform_buffer_unified_memory
GL_NV_fragment_shader_interlock
GL_EXT_bindable_uniform
GL_ARB_robust_buffer_access_behavior
GL_NV_shader_atomic_float
GL_ARB_shader_subroutine
GL_ARB_seamless_cubemap_per_texture
GL_AMD_seamless_cubemap_per_texture
GL_ARB_provoking_vertex
GL_ARB_texture_non_power_of_two
GL_EXT_transform_feedback2
GL_ARB_sample_locations
GL_EXT_framebuffer_blit
GL_ATI_texture_mirror_once
GL_ARB_texture_buffer_range
GL_ARB_ES2_compatibility
GL_NV_parameter_buffer_object2
GL_NV_shader_storage_buffer_object
GL_ARB_framebuffer_object
GL_NV_texture_multisample
GL_NV_shading_rate_image
GL_EXT_texture_env_combine
GL_NV_copy_depth_to_color
GL_ARB_vertex_shader
GL_ARB_texture_view
GL_ARB_half_float_vertex
GL_NV_shader_atomic_fp16_vector
GL_ARB_robustness
GL_ARB_debug_output
GL_EXT_texture_integer
GL_EXT_draw_buffers2
GL_EXT_point_parameters
GL_EXT_direct_state_access
GL_ARB_instanced_arrays
GL_ARB_shader_texture_lod
GL_NV_path_rendering
GL_KHR_debug
GL_ARB_explicit_attrib_location
GL_NV_texture_barrier
GL_EXT_sparse_texture2
GL_EXT_secondary_color
GL_ARB_sparse_texture2
GL_EXT_draw_instanced
GL_ARB_draw_instanced
GL_NV_multisample_coverage
GL_NV_compute_program5
GL_ARB_depth_texture
GL_ARB_half_float_pixel
GL_ARB_occlusion_query2
GL_NVX_blend_equation_advanced_multi_draw_buffers
GL_EXT_texture_filter_anisotropic
GL_EXT_gpu_program_parameters
GL_ARB_texture_filter_anisotropic
GL_ARB_shader_draw_parameters
GL_NV_shader_atomic_float64
GL_EXT_framebuffer_multisample_blit_scaled
GL_NV_query_resource_tag
GL_ARB_fragment_shader_interlock
GL_ARB_derivative_control
GL_NV_vertex_program2
GL_NV_vertex_program3
GL_ARB_gl_spirv
GL_ATI_texture_float
GL_EXT_texture_array
GL_KTX_buffer_region
GL_NV_conservative_raster_pre_snap
GL_ARB_point_parameters
GL_ARB_fragment_coord_conventions
GL_ARB_texture_multisample
GL_ARB_internalformat_query
GL_NV_conservative_raster_underestimation
GL_EXT_Cg_shader
GL_KHR_robustness
GL_EXT_multi_draw_arrays
GL_ARB_uniform_buffer_object
GL_NV_viewport_swizzle
GL_NV_point_sprite
GL_NV_pixel_data_range
GL_ARB_copy_image
GL_ARB_compute_variable_group_size
GL_ARB_bindless_texture
GL_EXT_win32_keyed_mutex
GL_ARB_texture_stencil8
GL_ARB_shader_precision
GL_IBM_rasterpos_clip
GL_EXT_texture_compression_dxt1
GL_NV_compute_shader_derivatives
GL_KHR_blend_equation_advanced
GL_ARB_draw_indirect
GL_ARB_texture_storage_multisample
GL_ARB_get_texture_sub_image
GL_EXT_provoking_vertex
GL_ARB_program_interface_query
GL_ARB_texture_compression_rgtc
GL_IBM_texture_mirrored_repeat
GL_NV_fog_distance
GL_NV_conservative_raster
GL_EXT_blend_func_separate
GL_EXT_texture_compression_s3tc
GL_EXT_texture_compression_rgtc
GL_NV_texture_rectangle_compressed
GL_NV_gpu_shader5
GL_ARB_fragment_program
GL_KHR_no_error
GL_EXT_separate_specular_color
GL_ARB_texture_env_crossbar
GL_EXT_texture_shared_exponent
GL_ARB_multi_bind
GL_NV_texture_rectangle
GL_ARB_sparse_texture_clamp
GL_ARB_internalformat_query2
GL_EXTX_framebuffer_mixed_formats
GL_ARB_shader_texture_image_samples
GL_NV_parameter_buffer_object
GL_EXT_blend_equation_separate
GL_ARB_shader_bit_encoding
GL_NV_ES3_1_compatibility
GL_NV_ES1_1_compatibility
GL_ARB_ES3_compatibility
GL_NV_alpha_to_coverage_dither_control
GL_NV_mesh_shader
GL_ARB_shader_atomic_counter_ops
GL_NV_blend_equation_advanced
GL_EXT_pixel_buffer_object
WGL_EXT_swap_control
GL_EXT_abgr
GL_NV_framebuffer_mixed_samples
GL_SGIS_texture_lod
GL_ARB_texture_mirror_clamp_to_edge
GL_ARB_point_sprite
GL_NV_stereo_view_rendering
GL_ARB_enhanced_layouts
GL_NV_draw_vulkan_image
GL_ARB_map_buffer_range
GL_NV_blend_equation_advanced_coherent
GL_ARB_clear_buffer_object
GL_NV_conservative_raster_dilate
GL_ARB_vertex_attrib_binding
GL_NV_occlusion_query
GL_NV_packed_depth_stencil
GL_EXT_rescale_normal
GL_NV_texgen_reflection
GL_EXT_packed_pixels
GL_NV_multisample_filter_hint
GL_EXT_vertex_attrib_64bit
GL_ARB_vertex_buffer_object
GL_ARB_transform_feedback_instanced
GL_ARB_post_depth_coverage
GL_ARB_compressed_texture_pixel_storage
GL_NV_vertex_program2_option
GL_ARB_depth_clamp
GL_NV_fragment_program2
GL_NV_fragment_shader_barycentric
GL_ARB_draw_buffers
GL_KHR_blend_equation_advanced_coherent
GL_ARB_shader_ballot
GL_EXT_packed_depth_stencil
GL_AMD_vertex_shader_layer
GL_EXT_depth_bounds_test
GL_ARB_sample_shading
GL_EXT_shader_integer_mix
GL_ARB_transpose_matrix
GL_NV_float_buffer
GL_ARB_sampler_objects
GL_EXT_import_sync_object
GL_ARB_vertex_type_2_10_10_10_rev
GL_EXT_vertex_array
GL_NV_gpu_program4
GL_AMD_multi_draw_indirect
GL_NV_gpu_program5
GL_EXT_raster_multisample
GL_ARB_shader_image_size
GL_ARB_ES3_1_compatibility
GL_ARB_conditional_render_inverted
GL_NV_sample_mask_override_coverage
GL_EXT_texture_sRGB_R8
GL_NV_register_combiners
GL_NV_texture_env_combine4
GL_ARB_vertex_array_object
GL_ARB_texture_mirrored_repeat
GL_ARB_pipeline_statistics_query
GL_EXT_window_rectangles
GL_ARB_texture_compression_bptc
GL_NV_primitive_restart
GL_NV_half_float
GL_NV_copy_image
GL_NV_blend_square
GL_NV_bindless_texture
GL_NV_geometry_shader_passthrough
GL_EXT_polygon_offset_clamp
GL_ARB_polygon_offset_clamp
GL_NV_vertex_attrib_integer_64bit
GL_NV_light_max_exponent
GL_EXT_shader_image_load_formatted
GL_ARB_draw_elements_base_vertex

With this information, it's possible to know exactly what types of OpenGL applications you can develop on your device.