High Performance rCADE3D Accelerator
Optional DVD Player Support
64-bit 2D GUI Accelerator
Integrated Features for ClearTV Display
Dual Video Windows for Videoconferencing
High Quality Video Accelerator
Extended Display Resolutions
Video Module Interface (VMI) and Vertical Blank Interval (VBI) Support
Highly Integrated Design
Simple Bus Interface
The 3DImÓge product line brings together "best-of-breed" features in every category of VGA, 3D, 2D, MPEG I/II acceleration, Videoconferencing, and TV-Out. It establishes the highest level of 3D performance in the PC mass-market, creates a new bar to beat in 2D benchmark performance, produces sharp smooth dual video windows using Trident's famed TrueVideo® technology, and now introduces ClearTV technology. An innovation to place an entire CRT display into a PAL/NTSC mask without loss of edges or corners, and without flicker.
The 3DImÓge975 breaks the 3D bottleneck with new rCADE technology. It achieves a sustained 1.2MB polygon/second 3D rendering rate. Also, for the first time, in an affordable mass-market graphics engine, an on-chip setup engine balances the 3D pipeline by offloading over 50% of the CPU 3D computing task.
Texture features include mip-mapped lookup of palletized texels, which may be bi-linearly interpolated. Both depth-cued and constant fog effects are controlled by the hardware with OpenGL compliant blending operations. The 16-bit Z and image buffers can be fast-cleared using the block-write function of 83 or 100MHz SGRAMs. Careful conservation of bandwidth is attained using queue based pixel processing to maximize the time available for pixel drawing operations.
DVD Collaborative Player
A complete DVD player is included in the 3DImÓge975DVD for full-frame (30fps) video with AC3 in collaboration with a MMX-enabled Pentium 166 CPU or higher. The 3DimÓge975DVD anticipates the trend in the industry to the DVD CDROM format and enables the playback of video from this format for very little cost premium.
The fast 2D GUI acceleration of the 3DImÓge975 exceeds performance benchmarks of any 2D GUI accelerator in the industry today. Fast 2D GUI operation is increasingly important as refresh rates increase to 120Hz, resolutions to 1600x1200 and higher, and pixel depths to 16 and 24 bits per pixel. Standard innovations include deep FIFOs for maximum bandwidth utilization in its 256 BLT operations, single-cycle read/write support of 83/100MHz SGRAMs, transparent BLT and support for Windows 95 font ops.
The 3DImÓge975 offers two hardware video windows which reduce CPU loading and increase framerate by as much as 30% when processing the local and remote dual video conferencing data streams. Key applications include inter-home POTs (Plain-Old-Telephone) conferencing, using inexpensive software that implements H.324, such as Intel 's latest version of Proshare. Each 3DImÓge975 window is independent with its own YUV to RGB conversion and on-the-fly display side scaling through TrueVideo® image enhancement hardware.
On chip ClearTV technology in the 3DImÓge975 scales the CRT image into an NTSC/PAL TV without loss of edge and corner data and without flicker. TV display is one of the compelling display devices to enable movement of PCs from the home study to the home living room.
The 3DImÓge975 contains one of the fastest and proven VGA cores in the industry. Even as Direct3D (D3D) begins to attract 3D games developers, many developers continue to support legacy DOS modes for performance and backwards compatibility to the installed base of slower PCs. VGA innovations include single-cycle PCI bus transfers, single-cycle frame-buffer read/writes, and 64-bit operation.
Trademarks and registered trademarks referenced herein are the properties of their respective owners.