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Tema: S60 OpenGL ES 1.1

Trenutno vreme je: 28. Apr 2024, 06:47:30

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Tema: S60 OpenGL ES 1.1 (Pročitano 1056 puta)

SerbianFighter

09. Dec 2004, 22:09:12

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Capo di tutti capi

Underpromise; overdeliver.

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Apple iPhone 6s

OpenGL ES is a low-level API that enables the lightest weight interface between software and hardware, with well-proven specification of advanced graphics techniques from OpenGL.
Using the OpenGL 1.3 pipeline features as the basis, the OpenGL ES 1.0 pipeline includes:

Geometry Processing
Vertex Arrays
Points, Lines, Triangles
Matrix Stack
Viewport, DepthRange
Vertex Lighting
ShadeModel

Rasterization
Multisampling (optional)
Points & anti-aliased points
Lines & anti-aliased lines
Polygons
Face Culling
PolygonOffset - fill mode

Texture Mapping
2D Textures
Wrap repeat, edge_clamp

Compressed Texture
TexSubImage, CopyTexImage
Multitexture
RGBA pixel and packed pixel formats, L, LA
All Filters

Fragment Processing
Fog
Scissor Test
Alpha Test
Stencil Test (optional)
Depth Test (optional)
Blending
Logic Op
Dither

Framebuffer Operations/Miscellaneous
Clear
ReadPixels / Alpha Test / Dither
Flush/Finish
Hint
Get-static state (constants)

What's New in OpenGL ES 1.1

OpenGL ES 1.1 emphasizes hardware acceleration of the API, but is fully backwards compatible with 1.0. New features in OpenGL ES 1.1 provide enhanced functionality, improved image quality and optimizations to increase performance while reducing memory bandwidth usage to save power. These include:

OpenGL 1.5 as a reference - the specification is defined relative to the OpenGL 1.5 specification.

Buffer objects provide a mechanism that clients can use to allocate, initialize and render from memory. Buffer objects can be used to store vertex array and element index data.

Auto mipmap generation can offload the application from having to generate mip-levels. Hardware implementations can potentially accelerate auto mip-level generation especially for video textures or when rendering to texture. A texture is considered incomplete in OpenGL ES if the set of mipmap arrays are not specified with the same type. The check for completeness is done when a given texture is used to render geometry.

Enhanced texture processing including a minimum of two multi-textures and texture combiner functionality for effects such as bump-mapping and per-pixel lighting. All OpenGL 1.5 texture environments except for the texture crossbar are supported.

Vertex skinning functionality using the oes_matix_palette extension allows smooth animation of complex figures and geometries. The extension allow OpenGL ES to support a palette of matrices. The matrix palette defines a set of matrices that can be used to transform a vertex. The matrix palette is not part of the model view matrix stack

User-defined clip planes permit for efficient early culling of non-visible polygons -increasing performance and saving power

Enhanced point sprites and point sprite arrays provides a method for application to draw particles using points instead of quads. This enables efficient and realistic particle effects. The point sprites extension also allows an app to specify texture coordinates that are interpolated across the point instead of the same texture coordinate used by traditional GL points. The Point Size Array extension permits an array of point sizes instead of a fixed input point size and provides flexibility for applications to do particle effects.

Static and Dynamic state queries are supported for static and dynamic state explicitly supported in the profile. The supported GL state queries can be categorized into simple queries, enumerated queries, texture queries, pointer and string queries, and buffer object queries. This enables OpenGL ES to be used in a sophisticated, layered software environment

Draw Texture defines a mechanism for writing pixel rectangles from one or more textures to a rectangular region of the screen. This capability is useful for fast rendering of background paintings, bitmapped font glyphs, and 2D framing elements in games

New Core Additons and Profile Extensions for the Common and Common-Lite profiles add subsets of the OES byte coordinates, OES fixed - point, OES single precision and OES matrix get ES-specific extensions as core additions; OES - read format, OES compressed paletted texture, OES point size array and OES point sprite as required profile extensions; and OES matrix palette and OES draw texture as optional profile extensions.

take a look at the presentations:
http://www.khronos.org/opengles/presentations.html

or download the latest version for s60 devices:
http://www.khronos.org/devu/opengles_challenge/implementations/index.php?gerbera-2.0.2-s60-full-bin-non-commercial.zip
(3650, 3660, 6260, 6600, 6620, 6630, 7650, N-Gage and N-Gage QD)

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Tema: S60 OpenGL ES 1.1

Trenutno vreme je: 28. Apr 2024, 06:47:30

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Oznake: powered gerbera kind s60 definition scissor s60opengl opengl open zip

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