Difference between revisions of "History of OpenGL"
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OpenGL 3.0 adds the concept of deprecation: marking certain features as subject to removal in later versions. GL 3.1 removed most deprecated features, and GL 3.2 created the notion of [[Core And Compatibility in Contexts|core and compatibility]] OpenGL contexts. | OpenGL 3.0 adds the concept of deprecation: marking certain features as subject to removal in later versions. GL 3.1 removed most deprecated features, and GL 3.2 created the notion of [[Core And Compatibility in Contexts|core and compatibility]] OpenGL contexts. | ||
− | Official versions of OpenGL released to date are 1.0, 1.1, 1.2, 1.2.1, 1.3, 1.4, 1.5, 2.0, 2.1, 3.0, 3.1, 3.2, 3.3, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5. | + | Official versions of OpenGL released to date are 1.0, 1.1, 1.2, 1.2.1, 1.3, 1.4, 1.5, 2.0, 2.1, 3.0, 3.1, 3.2, 3.3, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6. |
== Summary of version changes == | == Summary of version changes == | ||
Line 21: | Line 21: | ||
![[Extension#Core Extensions|Core Extension]] | ![[Extension#Core Extensions|Core Extension]] | ||
|- | |- | ||
− | |The SPIR-V language can be used to define shaders. | + | |The [[SPIR-V]] language can be used to define shaders. |
|{{extref|gl_spirv}}, {{extref|spirv_extensions}} | |{{extref|gl_spirv}}, {{extref|spirv_extensions}} | ||
|- | |- | ||
− | |Vertex shaders can get the draw ID and base vertex/instance values from rendering commands. | + | |[[Vertex Shader#Other inputs|Vertex shaders]] can get the draw ID and base vertex/instance values from rendering commands. |
|{{extref|shader_draw_parameters}} | |{{extref|shader_draw_parameters}} | ||
|- | |- | ||
Line 39: | Line 39: | ||
|{{extref|polygon_offset_clamp}} | |{{extref|polygon_offset_clamp}} | ||
|- | |- | ||
− | |OpenGL | + | |[[OpenGL Context]]s can be created that [[OpenGL Error#No error contexts|do not report errors]] of any kind. |
|{{extref|no_error|KHR}} | |{{extref|no_error|KHR}} | ||
|- | |- | ||
Line 198: | Line 198: | ||
|[http://www.opengl.org/registry/specs/ARB/texture_storage_multisample.txt ARB_texture_storage_multisample] | |[http://www.opengl.org/registry/specs/ARB/texture_storage_multisample.txt ARB_texture_storage_multisample] | ||
|- | |- | ||
− | |[[View | + | |[[View texture|The ability to create a new texture]], with a new internal format, that references an existing texture's storage |
|[http://www.opengl.org/registry/specs/ARB/texture_view.txt ARB_texture_view] | |[http://www.opengl.org/registry/specs/ARB/texture_view.txt ARB_texture_view] | ||
|- | |- | ||
Line 449: | Line 449: | ||
|{{extref|copy_buffer|EXT}} | |{{extref|copy_buffer|EXT}} | ||
|- | |- | ||
− | |[[Primitive | + | |[[Primitive restart|Primitive restart]] |
|{{extref|primitive_restart|NV}} | |{{extref|primitive_restart|NV}} | ||
|- | |- | ||
Line 554: | Line 554: | ||
* [http://www.opengl.org/registry/doc/glspec30.20080923.pdf OpenGL 3.0 Specification] | * [http://www.opengl.org/registry/doc/glspec30.20080923.pdf OpenGL 3.0 Specification] | ||
* [http://www.opengl.org/registry/doc/GLSLangSpec.Full.1.30.10.pdf OpenGL Shading Language 1.30.10 Specification] | * [http://www.opengl.org/registry/doc/GLSLangSpec.Full.1.30.10.pdf OpenGL Shading Language 1.30.10 Specification] | ||
− | |||
=== OpenGL 2.1 (2006) === | === OpenGL 2.1 (2006) === | ||
Core features: | Core features: | ||
− | {| | + | {| class="wikitable" |
!Addition | !Addition | ||
!Promoted from | !Promoted from | ||
|- | |- | ||
|Pixel buffer objects | |Pixel buffer objects | ||
− | | | + | |{{extref|pixel_buffer_object|ARB}} |
|- | |- | ||
|sRGB textures | |sRGB textures | ||
− | | | + | |{{extref|texture_sRGB|EXT}} |
|} | |} | ||
Shading language 1.20: | Shading language 1.20: | ||
Line 576: | Line 575: | ||
=== OpenGL 2.0 (2004) === | === OpenGL 2.0 (2004) === | ||
− | {| | + | {| class="wikitable" |
!Addition | !Addition | ||
!Promoted from | !Promoted from | ||
|- | |- | ||
|Shader objects | |Shader objects | ||
− | | | + | |{{extref|shader_objects|ARB}}, ''heavily modified'' |
|- | |- | ||
|Shader programs | |Shader programs | ||
− | | | + | |{{extref|vertex_shader|ARB}}, {{extref|fragment_shader|ARB}}, ''heavily modified'' |
|- | |- | ||
|Shading language 1.10 | |Shading language 1.10 | ||
− | | | + | |{{extref|shading_language_100|ARB}}, ''heavily modified'' |
|- | |- | ||
|Multiple render targets | |Multiple render targets | ||
− | | | + | |{{extref|draw_buffers|ARB}} |
|- | |- | ||
|Non-power-of-two textures | |Non-power-of-two textures | ||
− | | | + | |{{extref|texture_non_power_of_two|ARB}} |
|- | |- | ||
|Point sprites | |Point sprites | ||
− | | | + | |{{extref|point_sprite|ARB}} |
|- | |- | ||
|Separate stencil | |Separate stencil | ||
− | | | + | |{{extref|separate_stencil|ATI}}, {{extref|stencil_two_side|EXT}} |
|} | |} | ||
+ | Links: | ||
+ | * [https://khronos.org/registry/OpenGL/specs/gl/glspec20.pdf OpenGL 2.0 Specification] | ||
+ | * [https://khronos.org/registry/OpenGL/specs/gl/GLSLangSpec.1.10.pdf OpenGL Shading Language 1.10 Specification] | ||
=== OpenGL 1.5 (2003) === | === OpenGL 1.5 (2003) === | ||
− | {| | + | {| class="wikitable" |
!Addition | !Addition | ||
!Promoted from | !Promoted from | ||
|- | |- | ||
|Buffer objects | |Buffer objects | ||
− | | | + | |{{extref|vertex_buffer_object|ARB}} |
|- | |- | ||
|Occlusion query | |Occlusion query | ||
− | | | + | |{{extref|occlusion_query|ARB}} |
|- | |- | ||
|Shadow functions | |Shadow functions | ||
− | | | + | |{{extref|shadow_funcs|EXT}} |
|} | |} | ||
+ | |||
+ | Links: | ||
+ | * [https://khronos.org/registry/OpenGL/specs/gl/glspec15.pdf OpenGL 1.5 Specification] | ||
=== OpenGL 1.4 (2002) === | === OpenGL 1.4 (2002) === | ||
− | {| | + | {| class="wikitable" |
!Addition | !Addition | ||
!Promoted from | !Promoted from | ||
|- | |- | ||
|Automatic mipmap generation | |Automatic mipmap generation | ||
− | | | + | |{{extref|generate_mipmap|SGIS}} |
|- | |- | ||
|Blend squaring | |Blend squaring | ||
− | | | + | |{{extref|blend_square|NV}} |
|- | |- | ||
|Depth textures and shadows | |Depth textures and shadows | ||
− | | | + | |{{extref|depth_texture|ARB}}, {{extref|shadow|ARB}} |
|- | |- | ||
|Fog coordinate | |Fog coordinate | ||
− | | | + | |{{extref|fog_coord|EXT}} |
|- | |- | ||
|Multiple draw arrays | |Multiple draw arrays | ||
− | | | + | |{{extref|multi_draw_arrays|EXT}} |
|- | |- | ||
|Point parameters | |Point parameters | ||
− | | | + | |{{extref|point_parameters|ARB}} |
|- | |- | ||
|Secondary color | |Secondary color | ||
− | | | + | |{{extref|secondary_color|EXT}} |
|- | |- | ||
|Separate blend functions | |Separate blend functions | ||
− | | | + | |{{extref|blend_func_separate|EXT}} |
|- | |- | ||
|Stencil wrap | |Stencil wrap | ||
− | | | + | |{{extref|stencil_wrap|EXT}} |
|- | |- | ||
|Texture crossbar env mode | |Texture crossbar env mode | ||
− | | | + | |{{extref|texture_env_crossbar|ARB}} |
|- | |- | ||
|Texture LOD bias | |Texture LOD bias | ||
− | | | + | |{{extref|texture_lod_bias|EXT}} |
|- | |- | ||
|Texture mirrored repeat | |Texture mirrored repeat | ||
− | | | + | |{{extref|texture_mirrored_repeat|ARB}} |
|- | |- | ||
|Window raster position | |Window raster position | ||
− | | | + | |{{extref|window_pos|ARB}} |
|} | |} | ||
+ | |||
+ | Links: | ||
+ | * [https://khronos.org/registry/OpenGL/specs/gl/glspec14.pdf OpenGL 1.4 Specification] | ||
=== OpenGL 1.3 (2001) === | === OpenGL 1.3 (2001) === | ||
− | {| | + | {| class="wikitable" |
!Addition | !Addition | ||
!Promoted from | !Promoted from | ||
|- | |- | ||
|Compressed textures | |Compressed textures | ||
− | | | + | |{{extref|texture_compression|ARB}} |
|- | |- | ||
|Cube map textures | |Cube map textures | ||
− | | | + | |{{extref|texture_cube_map|ARB}} |
|- | |- | ||
|Multisample | |Multisample | ||
− | | | + | |{{extref|multisample|ARB}} |
|- | |- | ||
|Multitexture | |Multitexture | ||
− | | | + | |{{extref|multitexture|ARB}} |
|- | |- | ||
|Texture add env mode | |Texture add env mode | ||
− | | | + | |{{extref|texture_env_add|ARB}} |
|- | |- | ||
|Texture combine env mode | |Texture combine env mode | ||
− | | | + | |{{extref|texture_env_combine|ARB}} |
|- | |- | ||
|Texture dot3 env mode | |Texture dot3 env mode | ||
− | | | + | |{{extref|texture_env_dot3|ARB}} |
|- | |- | ||
|Texture border clamp | |Texture border clamp | ||
− | | | + | |{{extref|texture_border_clamp|ARB}} |
|- | |- | ||
|Transpose matrix | |Transpose matrix | ||
− | | | + | |{{extref|transpose_matrix|ARB}} |
|} | |} | ||
+ | |||
+ | Links: | ||
+ | * [https://khronos.org/registry/OpenGL/specs/gl/glspec13.pdf OpenGL 1.3 Specification] | ||
=== OpenGL 1.2.1 (1998) === | === OpenGL 1.2.1 (1998) === | ||
Line 707: | Line 718: | ||
=== OpenGL 1.2 (1998) === | === OpenGL 1.2 (1998) === | ||
− | {| | + | {| class="wikitable" |
!Addition | !Addition | ||
!Promoted from | !Promoted from | ||
|- | |- | ||
|3D textures | |3D textures | ||
− | | | + | |{{extref|texture3D|EXT}} |
|- | |- | ||
|BGRA pixel formats | |BGRA pixel formats | ||
− | | | + | |{{extref|bgra|EXT}} |
|- | |- | ||
|Packed pixel formats | |Packed pixel formats | ||
− | | | + | |{{extref|packed_pixels|EXT}} |
|- | |- | ||
|Normal rescaling | |Normal rescaling | ||
− | | | + | |{{extref|rescale_normal|EXT}} |
|- | |- | ||
|Separate specular color | |Separate specular color | ||
− | | | + | |{{extref|separate_specular_color|EXT}} |
|- | |- | ||
|Texture coordinate edge clamping | |Texture coordinate edge clamping | ||
− | | | + | |{{extref|texture_edge_clamp|SGIS}} |
|- | |- | ||
|Texture LOD control | |Texture LOD control | ||
− | | | + | |{{extref|texture_lod|SGIS}} |
|- | |- | ||
|Vertex array draw element range | |Vertex array draw element range | ||
− | | | + | |{{extref|draw_range_elements|EXT}} |
|} | |} | ||
==== Imaging subset (optional) ==== | ==== Imaging subset (optional) ==== | ||
− | {| | + | {| class="wikitable" |
!Addition | !Addition | ||
!Promoted from | !Promoted from | ||
|- | |- | ||
|Color Tables | |Color Tables | ||
− | | | + | |{{extref|color_table|SGI}}, {{extref|color_subtable|EXT}} |
|- | |- | ||
|Convolution | |Convolution | ||
− | | | + | |{{extref|convolution|EXT}}, {{extref|convolution_border_modes|HP}}, {{extref|convolution_border_modes|SUN}} |
|- | |- | ||
|Color matrix | |Color matrix | ||
− | | | + | |{{extref|color_matrix|SGI}} |
|- | |- | ||
|Pixel data statistics | |Pixel data statistics | ||
− | | | + | |{{extref|histogram|EXT}} |
|- | |- | ||
|Constant blend color | |Constant blend color | ||
− | | | + | |{{extref|blend_color|EXT}} |
|- | |- | ||
|New blending equations | |New blending equations | ||
− | | | + | |{{extref|blend_minmax|EXT}}, {{extref|blend_subtract|EXT}} |
|} | |} | ||
+ | |||
+ | Links: | ||
+ | * [https://khronos.org/registry/OpenGL/specs/gl/glspec121.pdf OpenGL 1.2.1 Specification] | ||
=== OpenGL 1.1 (1997) === | === OpenGL 1.1 (1997) === | ||
− | {| | + | {| class="wikitable" |
!Addition | !Addition | ||
!Promoted from | !Promoted from | ||
|- | |- | ||
|Vertex arrays | |Vertex arrays | ||
− | | | + | |{{extref|vertex_array|EXT}} |
|- | |- | ||
|Polygon offset | |Polygon offset | ||
− | | | + | |{{extref|polygon_offset|EXT}} |
|- | |- | ||
|Logical operation | |Logical operation | ||
− | | | + | |{{extref|blend_logic_op|EXT}} |
|- | |- | ||
|Internal texture formats | |Internal texture formats | ||
− | | | + | |{{extref|texture|EXT}} |
|- | |- | ||
|GL_REPLACE texture env | |GL_REPLACE texture env | ||
− | | | + | |{{extref|texture|EXT}} |
|- | |- | ||
|Texture proxy | |Texture proxy | ||
− | | | + | |{{extref|texture|EXT}} |
|- | |- | ||
|Copy texture and subtexture | |Copy texture and subtexture | ||
− | | | + | |{{extref|copy_texture|EXT}}, {{extref|subtexture|EXT}} |
|- | |- | ||
|Texture objects | |Texture objects | ||
− | | | + | |{{extref|texture_object|EXT}} |
|} | |} | ||
+ | |||
+ | Links: | ||
+ | * [https://khronos.org/registry/OpenGL/specs/gl/glspec11.ps OpenGL 1.1 Specification] | ||
=== OpenGL 1.0 (1992) === | === OpenGL 1.0 (1992) === | ||
First release. | First release. | ||
+ | |||
+ | Links: | ||
+ | * [https://khronos.org/registry/OpenGL/specs/gl/glspec10.pdf OpenGL 1.0 Specification] |
Revision as of 14:27, 24 February 2019
Overview
OpenGL was first created as an open and reproducable alternative to Iris GL which had been the proprietary graphics API on Silicon Graphics workstations. Although OpenGL was initially similar in some respects to IrisGL the lack of a formal specification and conformance tests made Iris GL unsuitable for broader adoption. Mark Segal and Kurt Akeley authored the OpenGL 1.0 specification which tried to formalize the definition of a useful graphics API and made cross platform non-SGI 3rd party implementation and support viable. One notable omission from version 1.0 of the API was texture objects. IrisGL had definition and bind stages for all sorts of objects including materials, lights, textures and texture environments. OpenGL eschewed these objects in favor of incremental state changes with the idea that collective changes could be encapsulated in display lists. This has remained the philosophy with the exception that texture objects (glBindTexture) with no distinct definition stage are a key part of the API.
OpenGL has been through a number of revisions which have predominantly been incremental additions where extensions to the core API have gradually been incorporated into the main body of the API. For example OpenGL 1.1 added the glBindTexture extension to the core API.
OpenGL 2.0 incorporates the significant addition of the OpenGL Shading Language (also called GLSL), a C like language with which the transformation and fragment shading stages of the pipeline can be programmed.
OpenGL 3.0 adds the concept of deprecation: marking certain features as subject to removal in later versions. GL 3.1 removed most deprecated features, and GL 3.2 created the notion of core and compatibility OpenGL contexts.
Official versions of OpenGL released to date are 1.0, 1.1, 1.2, 1.2.1, 1.3, 1.4, 1.5, 2.0, 2.1, 3.0, 3.1, 3.2, 3.3, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6.
Summary of version changes
This is summary of all changes made in OpenGL specifications through its development. More information about changes may be obtained in OpenGL specification for the version. (In appendix.)
Most functionality added to OpenGL these days is either promoted from one or more extensions, or is provided by a Core Extension. The latter method means that the extension is identical to the core functionality, even in the naming of enumerators and functions. When functionality is promoted from an extension, it can undergo modifications, and the functions/enumerators have their suffix's removed.
OpenGL 4.6 (2017)
Addition | Core Extension |
---|---|
The SPIR-V language can be used to define shaders. | ARB_gl_spirv, ARB_spirv_extensions |
Vertex shaders can get the draw ID and base vertex/instance values from rendering commands. | ARB_shader_draw_parameters |
Multi-draw indirect rendering commands that can fetch the number of draws from a buffer. | ARB_indirect_parameters |
Statistics and transform feedback overflow queries. | ARB_pipeline_statistics_query, ARB_transform_feedback_overflow_query |
Anisotropic Filtering | ARB_texture_filter_anisotropic |
Clamping polygon offsets | ARB_polygon_offset_clamp |
OpenGL Contexts can be created that do not report errors of any kind. | KHR_no_error |
More operations for Atomic Counters. | ARB_shader_atomic_counter_ops |
Avoiding divergent shader invocations, where they are unnecessary. | ARB_shader_group_vote |
Links:
- OpenGL 4.6 Core Profile Specification
- OpenGL 4.6 Compatibility Profile Specification
- OpenGL Shading Language 4.60 Specification
OpenGL 4.5 (2014)
Addition | Core Extension |
---|---|
Additional clip control modes to configure how clip space is mapped to window space. | ARB_clip_control |
Adds a new GLSL gl_CullDistance shader output, similar to gl_ClipDistance, but used for whole primitive culling. | ARB_cull_distance |
Compatibility with OpenGL ES 3.1 | ARB_ES3_1_compatibility |
Adds new modes to glBeginConditionalRender which invert condition used to determine whether to draw or not. | ARB_conditional_render_inverted |
Provides control over the spacial granularity at which the underlying implementation computes derivatives. | ARB_derivative_control |
Allows modifying and querying object state without binding objects. | ARB_direct_state_access |
Adds a new function to get sub-regions of texture images. | ARB_get_texture_sub_image |
Upgrades the ARB_robustness functionality to meet ES 3.1 standards. | KHR_robustness |
Provides GLSL built-in functions allowing shaders to query the number of samples of a texture. | ARB_shader_texture_image_samples |
Relaxes the restrictions on rendering to a currently bound texture and provides a mechanism to avoid read-after-write hazards. | ARB_texture_barrier |
Links:
- OpenGL 4.5 Core Profile Specification
- OpenGL 4.5 Compatibility Profile Specification
- OpenGL Shading Language 4.50 Specification
OpenGL 4.4 (2013)
While a number of features made it into core OpenGL, a number of other features were left to specific extensions. These offer certainly functionality that lesser 4.x hardware would be unable to handle.
Links:
- OpenGL 4.4 Core Profile Specification
- OpenGL 4.4 Compatibility Profile Specification
- OpenGL Shading Language 4.40 Specification
OpenGL 4.3 (2012)
Links:
- OpenGL 4.3 Core Profile Specification
- OpenGL 4.3 Compatibility Profile Specification
- OpenGL Shading Language 4.30 Specification
OpenGL 4.2 (2011)
Links:
- OpenGL 4.2 Core Profile Specification
- OpenGL 4.2 Compatibility Profile Specification
- OpenGL Shading Language 4.20.6 Specification
OpenGL 4.1 (2010)
Addition | Core Extension |
---|---|
Query and load a binary blob for program objects | ARB_get_program_binary |
Ability to bind programs individually to programmable stages | ARB_separate_shader_objects |
Pulling missing functionality from OpenGL ES 2.0 into OpenGL | ARB_ES2_compatibility |
Documents precision requirements for several FP operations | ARB_shader_precision |
Provides 64-bit floating-point component vertex attributes | ARB_vertex_attrib_64_bit |
Multiple Viewports for the same rendering surface, or one per surface | ARB_viewport_array |
Links:
- OpenGL 4.1 Core Profile Specification
- OpenGL 4.1 Compatibility Profile Specification
- OpenGL Shading Language 4.10.6 Specification
OpenGL 4.0 (2010)
Addition | Core Extension |
---|---|
Shading language 4.00 | ARB_texture_query_lod, ARB_gpu_shader5, ARB_gpu_shader_fp64, ARB_shader_subroutine, ARB_texture_gather |
Indirect Drawing, without multidraw | ARB_draw_indirect |
Request minimum number of fragment inputs | ARB_sample_shading |
Tessellation, with shader stages | ARB_tessellation_shader |
Buffer Texture formats RGB32F, RGB32I, RGB32UI | ARB_texture_buffer_object_rgb32 |
Cubemap Array Texture | ARB_texture_cube_map_array |
Transform Feedback objects and multiple feedback stream output. | ARB_transform_feedback2, ARB_transform_feedback3 |
Addition | Promoted from |
Individual blend equations for each color output | ARB_draw_buffers_blend |
Links:
- OpenGL 4.0 Core Profile Specification
- OpenGL 4.0 Compatibility Profile Specification
- OpenGL Shading Language 4.00.9 Specification
OpenGL 3.3 (2010)
Addition | Core Extension |
---|---|
Shading language 3.30 | ARB_shader_bit_encoding |
Dual-source blending. | ARB_blend_func_extended |
Shader-defined locations for attributes and fragment shader outputs. | ARB_explicit_attrib_location |
Simple boolean Occlusion Query | ARB_occlusion_query2 |
Sampler Objects | ARB_sampler_objects |
A new image format for unsigned 10.10.10.2 colors | ARB_texture_rgb10_a2ui |
Texture swizzle | ARB_texture_swizzle |
Timer queries | ARB_timer_query |
Instanced arrays | ARB_instanced_arrays |
Vertex attributes 2.10.10.10 | ARB_vertex_type_2_10_10_10_rev |
Links:
- OpenGL 3.3 Core Profile Specification
- OpenGL 3.3 Compatibility Profile Specification
- OpenGL Shading Language 3.30.9 Specification
- OpenGL 3.3 Reference Pages
- Official feedback on OpenGL 3.3 thread
OpenGL 3.2 (2009)
- Core and compatibility profiles
- Shading language 1.50
Addition | Core Extension |
---|---|
D3D compatible color vertex component ordering | ARB_vertex_array_bgra |
Drawing command allowing modification of the base vertex index | ARB_draw_elements_base_vertex |
Shader fragment coordinate convention control | ARB_fragment_coord_conventions |
Provoking vertex control | ARB_provoking_vertex |
Seamless cube map filtering | ARB_seamless_cube_map |
Multisampled textures and texture samplers for specific sample locations | ARB_texture_multisample |
Fragment Depth Clamping | ARB_depth_clamp |
Fence sync objects | ARB_sync |
Addition | Promoted from |
Geometry Shaders, as well as input/output Interface Blocks | ARB_geometry_shader4, heavily modified. |
Links:
- OpenGL 3.2 Core Profile Specification
- OpenGL 3.2 Compatibility Profile Specification
- OpenGL Shading Language 1.50.11 Specification
- Official feedback on OpenGL 3.2 thread
OpenGL 3.1 (2009)
- All features deprecated in OpenGL 3.0 are removed except wide lines
- Shading language 1.40
- SNORM texture component formats
Addition | Core Extension |
---|---|
Uniform Buffer Objects | ARB_uniform_buffer_object |
Addition | Promoted from |
Instanced rendering with a per instance counter accessible to vertex shaders | ARB_draw_instanced |
Data copying between buffer objects | EXT_copy_buffer |
Primitive restart | NV_primitive_restart |
Buffer Textures | ARB_texture_buffer_object |
Rectangle Textures | ARB_texture_rectangle |
Links:
- OpenGL 3.1 Specification
- OpenGL 3.1 Specification with GL_ARB_compatibility extension
- OpenGL Shading Language 1.40.08 Specification
- Official feedback on OpenGL 3.1 thread
OpenGL 3.0 (2008)
- New context creation mechanism
- Full and forward compatible context
- Profiles
- Mapping buffer subranges into client space
- Single- and double-channel (R and RG) internal formats for textures and renderbuffers
Addition | Core Extension |
---|---|
Framebuffer Objects, along with blitting, Multisample Renderbuffer Objects, and packed depth/stencil image formats | ARB_framebuffer_object |
Vertex Array Objects | ARB_vertex_array_object |
Addition | Promoted from |
Conditional Rendering | NV_conditional_render |
Floating-point color and depth internal formats for textures and render buffers | ARB_color_buffer_float, NV_depth_buffer_float, ARB_texture_float, EXT_packed_float, EXT_texture_shared_exponent |
Half-float (16-bit) vertex array and pixel data formats | NV_half_float, EXT_half_float_pixel |
Integral Image Formats, which can be fetched as integers rather than being converted to normalized floats. | EXT_texture_integer |
Array Textures | EXT_texture_array |
Per-color-attachment blend enables and color writemasks | EXT_draw_buffers2 |
Red Green Texture Compression | EXT_texture_compression_rgtc |
Transform Feedback | ARB_transform_feedback |
sRGB framebuffer mode | EXT_framebuffer_sRGB |
Deprecation Model
OpenGL 3 specification marks many features as deprecated, which will be removed in next versions. This features include:
- Application-generated object names
- Color index mode
- Shading language 1.10 and 1.20
- Begin/End primitive specification
- Edge flags
- Fixed function vertex processing
- Client-side vertex arrays
- Rectangles
- Current raster position
- Two-sided color selection
- Non-sprite points
- Wide lines and line stripple
- Quadrilateral and polygon primitives
- Separate polygon draw mode
- Polygon stripple
- Pixel transfer modes and operations
- Pixel drawing
- Bitmaps
- Legacy OpenGL 1.0 pixel formats
- Legacy pixel formats
- Depth texture mode
- Texture wrap mode CLAMP
- Texture borders
- Automatic mipmap generation
- Fixed function fragment processing
- Alpha test
- Accumulation buffers
- Context framebuffer size queries
- Evaluators
- Selection and feedback mode
- Display lists
- Hints
- Attribute stacks
- Unified extension string
Links:
OpenGL 2.1 (2006)
Core features:
Addition | Promoted from |
---|---|
Pixel buffer objects | ARB_pixel_buffer_object |
sRGB textures | EXT_texture_sRGB |
Shading language 1.20:
- Non-square matrices in GLSL.
Links:
OpenGL 2.0 (2004)
Addition | Promoted from |
---|---|
Shader objects | ARB_shader_objects, heavily modified |
Shader programs | ARB_vertex_shader, ARB_fragment_shader, heavily modified |
Shading language 1.10 | ARB_shading_language_100, heavily modified |
Multiple render targets | ARB_draw_buffers |
Non-power-of-two textures | ARB_texture_non_power_of_two |
Point sprites | ARB_point_sprite |
Separate stencil | ATI_separate_stencil, EXT_stencil_two_side |
Links:
OpenGL 1.5 (2003)
Addition | Promoted from |
---|---|
Buffer objects | ARB_vertex_buffer_object |
Occlusion query | ARB_occlusion_query |
Shadow functions | EXT_shadow_funcs |
Links:
OpenGL 1.4 (2002)
Addition | Promoted from |
---|---|
Automatic mipmap generation | SGIS_generate_mipmap |
Blend squaring | NV_blend_square |
Depth textures and shadows | ARB_depth_texture, ARB_shadow |
Fog coordinate | EXT_fog_coord |
Multiple draw arrays | EXT_multi_draw_arrays |
Point parameters | ARB_point_parameters |
Secondary color | EXT_secondary_color |
Separate blend functions | EXT_blend_func_separate |
Stencil wrap | EXT_stencil_wrap |
Texture crossbar env mode | ARB_texture_env_crossbar |
Texture LOD bias | EXT_texture_lod_bias |
Texture mirrored repeat | ARB_texture_mirrored_repeat |
Window raster position | ARB_window_pos |
Links:
OpenGL 1.3 (2001)
Addition | Promoted from |
---|---|
Compressed textures | ARB_texture_compression |
Cube map textures | ARB_texture_cube_map |
Multisample | ARB_multisample |
Multitexture | ARB_multitexture |
Texture add env mode | ARB_texture_env_add |
Texture combine env mode | ARB_texture_env_combine |
Texture dot3 env mode | ARB_texture_env_dot3 |
Texture border clamp | ARB_texture_border_clamp |
Transpose matrix | ARB_transpose_matrix |
Links:
OpenGL 1.2.1 (1998)
This version defines ARB extensions concept. ARB extensions are not required to be supported by a conformant OpenGL implementation, but are expected to be widely available; they define functionality that is likely to move into the required feature set in a future revision of the specification.
GL implementations of such later revisions should continue to export the name strings of promoted extensions in the EXTENSIONS string, and continue to support the ARB-affixed versions of functions and enumerants as a transition aid.
OpenGL 1.2 (1998)
Addition | Promoted from |
---|---|
3D textures | EXT_texture3D |
BGRA pixel formats | EXT_bgra |
Packed pixel formats | EXT_packed_pixels |
Normal rescaling | EXT_rescale_normal |
Separate specular color | EXT_separate_specular_color |
Texture coordinate edge clamping | SGIS_texture_edge_clamp |
Texture LOD control | SGIS_texture_lod |
Vertex array draw element range | EXT_draw_range_elements |
Imaging subset (optional)
Addition | Promoted from |
---|---|
Color Tables | SGI_color_table, EXT_color_subtable |
Convolution | EXT_convolution, HP_convolution_border_modes, SUN_convolution_border_modes |
Color matrix | SGI_color_matrix |
Pixel data statistics | EXT_histogram |
Constant blend color | EXT_blend_color |
New blending equations | EXT_blend_minmax, EXT_blend_subtract |
Links:
OpenGL 1.1 (1997)
Addition | Promoted from |
---|---|
Vertex arrays | EXT_vertex_array |
Polygon offset | EXT_polygon_offset |
Logical operation | EXT_blend_logic_op |
Internal texture formats | EXT_texture |
GL_REPLACE texture env | EXT_texture |
Texture proxy | EXT_texture |
Copy texture and subtexture | EXT_copy_texture, EXT_subtexture |
Texture objects | EXT_texture_object |
Links:
OpenGL 1.0 (1992)
First release.
Links: