OpenGL 4.3 a OpenGL ES 3

[nou]

http://www.khronos.org/news/press/releases/khronos-releases-opengl-4.3-specification-with-major-enhancements

novinky v OpenGL 4.3

• compute shaders that harness GPU parallelism for advanced computation such as image, volume, and geometry processing within the context of the graphics pipeline;
  
• shader storage buffer objects that enable vertex, tessellation, geometry, fragment and compute shaders to read and write large amounts of data and pass significant data between shader stages;
  
• texture parameter queries to discover actual supported texture parameter limits on the current platform;
  
• high quality ETC2 / EAC texture compression as a standard feature, eliminating the need for a different set of textures for each platform;
  
• debug capability to receive debugging messages during application development;
  
• texture views for interpreting textures in many different ways without duplicating the texture data itself;
  
• indirect multi-draw that enables the GPU to compute and store parameters for multiple draw commands in a buffer object and re-use those parameters with one draw command, particularly efficient for rendering many objects with low triangle counts;
  
• increased memory security that guarantees that an application cannot read or write outside its own buffers into another application?s data;
  
• a multi-application robustness extension that ensures that an application that causes a GPU reset will not affect any other running applications.
  

novinky v OpenGL ES 3

• multiple enhancements to the rendering pipeline to enable acceleration of advanced visual effects including: occlusion queries, transform feedback, instanced rendering and support for four or more rendering targets;
  
• high quality ETC2 / EAC texture compression as a standard feature, eliminating the need for a different set of textures for each platform;
  
• a new version of the GLSL ES shading language with full support for integer and 32-bit floating point operations;
  
• greatly enhanced texturing functionality including guaranteed support for floating point textures, 3D textures, depth textures, vertex textures, NPOT textures, R/RG textures, immutable textures, 2D array textures, swizzles, LOD and mip level clamps, seamless cube maps and sampler objects;
  
• an extensive set of required, explicitly sized texture and render-buffer formats, reducing implementation variability and making it much ea sier to write portable applications.

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Najjednoduchšie chyby sa najtažšie hľadajú.

[mar]

No doufám, že to brzy bude standard nejen na papíře.
Něco ke kompresím: ETC2 mi přijde relativně složité, ale výsledky nevypadají vůbec špatně. Snad nejhorší komprese z hlediska poměru kvalita/složitost je naprosto nepoužitelné PVRTC, které se hodí tak maximálně na rozmázlé fotky... S3TC je oproti tomu naprosto luxusní (a asi o 4 řády jednodušší). Dodnes nechápu, že to někomu vůbec stálo za tu námahu to hardwarově implementovat...

[nou]

nVidia ako zvycajne uz ma aj beta OpenGL 4.3 ovladace.
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Najjednoduchšie chyby sa najtažšie hľadajú.

[pcmaster]

To je pekne. To s tymi compute shadermi mame chapat ako krok k "zacleneniu" OpenCL do OpenGL, alebo priblizenie OpenGL/GLSL k DirectX11/HLSL5?
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Off-topic flame-war addict since the very beginning. Registered since Oct. 2003!
Interproductum fimi omne est.

[nou]

G-truc uz ma napisany rychli prehlad co je nove http://www.g-truc.net/doc/OpenGL4.3review.pdf rozobera tam aj compute shader. vyzera to ze je mozne spustit iba pred vertex alebo po fragment shadery. popripade na vystupe z transform feedback
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Najjednoduchšie chyby sa najtažšie hľadajú.

[Marek]

[frca]

A co direct state access a bindless graphics? Bude to někdy?
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www.FRANTICWARE.com

[Marek]

Bindless graphics ne (to je spíš hack, který obchází OpenGL). Direct state access asi taky spíš ne. Nicméně některé API funkce byly překopány. Vypadá to, že ARB_vertex_attrib_binding kompletně nahrazuje vertex arrays.
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AMD Open Source Graphics Driver Developer