Mirroring it exactly once in the negative texture coordinate directions. Values from Query Objects values can be written to a buffer object instead of directly to client memory.ДЄ special clamping mode that doubles the size of the texture in each dimension, Locations can be set on input/output interface blocks, for packing purposes.Д«ind an array of objects of the same type to a sequential range of indexed binding targets in one call.In-shader specification of transform feedback parameters.Tight packing of disparate input/output variables.Explicit layout requests for buffer-backed interface blocks.Integer layout qualifiers can take any constant expression, not just integer literals.Immutable storage for buffer objects, including the ability to use buffers while they are mapped.ДЄ number of enhancements to layout qualifiers: OpenGL Shading Language 4.50 Specification.

OpenGL 4.5 Compatibility Profile Specification.Relaxes the restrictions on rendering to a currently bound texture and provides a mechanism to avoid read-after-write hazards. Provides GLSL built-in functions allowing shaders to query the number of samples of a texture. Upgrades the ARB_robustness functionality to meet ES 3.1 standards. Provides control over the spacial granularity at which the underlying implementation computes derivatives.ДЄllows modifying and querying object state without binding objects.ДЄdds a new function to get sub-regions of texture images. OpenGL Shading Language 4.60 SpecificationДЄdditional clip control modes to configure how clip space is mapped to window space.ДЄdds a new GLSL gl_CullDistance shader output, similar to gl_ClipDistance, but used for whole primitive culling.ДЄdds new modes to glBeginConditionalRender which invert condition used to determine whether to draw or not.OpenGL 4.6 Compatibility Profile Specification.OpenGL Contexts can be created that do not report errors of any kind.ДЄvoiding divergent shader invocations, where they are unnecessary. Statistics and transform feedback overflow queries.ДЄRB_pipeline_statistics_query, ARB_transform_feedback_overflow_query Multi-draw indirect rendering commands that can fetch the number of draws from a buffer. Vertex shaders can get the draw ID and base vertex/instance values from rendering commands. The SPIR-V language can be used to define shaders. When functionality is promoted from an extension, it can undergo modifications, and the functions/enumerators have their suffix's removed. The latter method means that the extension is identical to the core functionality, even in the naming of enumerators and functions. Most functionality added to OpenGL these days is either promoted from one or more extensions, or is provided by a Core Extension. More information about changes may be obtained in OpenGL specification for the version. This is summary of all changes made in OpenGL specifications through its development. GL 3.1 removed most deprecated features, and GL 3.2 created the notion of core and compatibility OpenGL contexts. OpenGL 3.0 adds the concept of deprecation: marking certain features as subject to removal in later versions. 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. For example OpenGL 1.1 added the glBindTexture extension to the core 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. 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 eschewed these objects in favor of incremental state changes with the idea that collective changes could be encapsulated in display lists. IrisGL had definition and bind stages for all sorts of objects including materials, lights, textures and texture environments. One notable omission from version 1.0 of the API was texture objects. 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. 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. OpenGL was first created as an open and reproducable alternative to Iris GL which had been the proprietary graphics API on Silicon Graphics workstations.

Opengl 4.4 vs 4.5