Acer Aspire one 521 Series, Service Manual, Page: 27 / 177

Chapter 1 17
Item (NB Cont.) Specification
Features • Support for GDI extensions:
• In Windows XP and Windows Vista: Alpha BLT, Transparent BLT, and
Gradient Fill.
• In Windows 7: Alpha BLT, Transparent BLT, Color Fill BLT, Stretch
BLT, and Clear Type BLT.
• Hardware cursor (up to 64x64x32bpp), with alpha channel for direct
support of Windows XP, Windows Vista andWindows 7 alpha cursor.
• 3D Acceleration Features
• Fully DirectX 10.1 compliant, including full speed 32-bit floating point
per component operations
• Shader Model 4.1 geometry and pixel support in a unified shader
architecture:
• Full speed 32-bit floating point processing per component.
• High dynamic range rendering with floating point blending, texture
filtering and anti-aliasing support.
• High performance dynamic range computations
• Full anti-aliasing on render surfaces up to and including 128-bit
floating point formats.
• Support for OpenGLR 2.0
• Anti-Aliasing Filtering:
• 2x/4x/8x modes.
• Sparse multi-sample algorithm with gamma correction, programmable
sample patterns, and centroid sampling.
• Temporal anti-aliasing.
• Adaptive anti-aliasing mode.
• Lossless color compression (up to 8:1) at all resolutions, up to and
including widescreen HDTV.
• Anisotropic Filtering:
• 2x/4x/8x/16x modes
• Up to 128-tap texture filtering.
• Adaptive algorithm with performance (bi-linear) and quality (tri-linear)
options.
• Improved quality mode due to improved subpixel precision, higher
precision LOD computations, and rotationally invariant LOD
computations.
• Advanced Texture Compression (3Dc+. ):
• High quality 4:1 compression for normal maps and luminance maps.
• Works with any single-channel or two-channel data format.
• HW support to overcome "Small batch" issues in CPU limited
applications.
• 3D resources virtualized to a 32-bit addressing space, for support of
large numbers of render targets and textures.
• New vertex cache and vertex fetch design, to increase vertex
throughput from previous generations.
• Full support of 64-bit and 128-bit textures and surfaces, which can be
4x to 8x faster than previous generation of HW.
• Up to 8K x 8K textures, including 128 bpp texture are supported.