NVSG 4.0.6.0.7 Update
Posted by immad19 on September 6, 2008
NVSG ( Nvidia Scene Graph ) has just been updated with better tracking , occlusion culling, and an updated “VisSim” complete sample application.
The NVIDIA Scene Graph Software Development Kit (NVSG SDK) is an object-oriented programming library for creating scene graph-based applications — the NVSG is built from the ground up for modern computer systems, rather than as a hacked reqorking of 1980’s workstation code. It supports CgFX, volume rendering, and is packaged with multiple usage samples.
Help And Features
What Is a Scene Graph?
Basically, a scene graph is a reusable, hierarchical data structure that describes the objects in a 3D scene—their size, position, orientation, visible properties, and relationships with one another. Scene graphs can be used to display virtual scenes for a variety of purposes, including game engines, computer-aided design (CAD), scientific and commercial visualization, training, simulation, and modeling. NVSG is not a complete application engine—it is a component of such products. NVSG focuses on representing the 3D scene and enabling its efficient rendering. Other components of the engine, such as physics models, are not included. Since different customers have different requirements, this gives you maximum flexibility in customizing your engine to meet the specific needs of your application.
Why Use NVSG?
Performance. NVSG maximizes the performance of your NVIDIA graphics hardware by reducing the amount of data and by grouping related data sets. NVSG’s hierarchical structure allows the culling of objects and their related data not needed for rendering the scene. And it allows data to be sorted so that related objects are rendered at the same time.
Productivity. NVSG manages the graphics hardware for your application, reducing the amount of OpenGL programming required.
Portability. NVSG handles the lower-level tasks of rendering and transferring data, so porting your application to another platform can be as simple as recompiling the code.
Scalability. NVSG is designed to work seamlessly with complex hardware configurations, such as graphics clusters or NVIDIA SLI™ technology (multi-GPU architecture). This lets you focus on developing your application, while NVSG takes care of the hardware interface.
Shading. NVSG takes advantage of modern GPU shading by fully integrating Cg/CgFX, abstracting the low-level work required to organize and deliver the shader data to the GPU.
Technology Features
- Superb Image Quality
- C++ scene graph API
- High performance
- Optimized memory management
- Scalable with SLI
- Cluster-aware
- Frame-based animation supported:
- Camera animation
- Skin/bone animation
- Object animation
- Full shader support for the latest
GPUs via CgFX 1.4 - Vertex array, display list, and VBO
support - Both frustum and occlusion culling
supported - Tree optimizer
- Orthographic camera and
Perspective camera support - Multiple camera manipulators:
- Trackball manipulator
- Flight manipulator
- Walk manipulator
- Animation manipulator
- Multipass antialiasing (MPAA):
seamless integration of Software
FSAA with Hardware FSAA - Shadow support (shadow maps)
- Level of detail (LOD) handling
- Stereo support
- Picking/selecting (ray intersection)
- Tree searching
- Multipass rendering:
- Shader-level (multipass effects)
- Geometry-level
- Scene-level
- Multithreading safe (object and tree
locking with single writer/multiple
readers) - Asymmetric and overlapping viewing
frusti for clusters - Multiple file format support:
- NBF (import/export)
- NVSG (import/export)
- VRML/WRL (import only)
- NVB (import only)
- …others via plug-in
- Multiple texture format support:
- BMP
- DDS
- JPG
- GIF
- HDR-HDRI Vertical Cross
- OpenEXR
- PNG
- RGB
- TGA
- TIF
- …others via plug-in
- Multiple Plaform Support
- Windows 2000/XP 32-bit
- Windows XP x86_64 64-bit
- Linux 32-bit
- Linux x86_64 64-bit
- Fourth-generation graphics boards (such as NVIDIA Quadro®)
Downloads
NVSG SDK Installer for 32- and 64-Bit Windows (.exe)
VisSim Sample Application (.zip)
New In NVSG 4.0
- Support for OpenFlight, COLLADA / COLLADA FX, PLY, and OBJ file formats.
- FX Composer 2 and mental mill Artist Edition effect interchange.
- Support for Cg 2.0 and its new G80 features, including Geometry Shaders and Texture Arrays.
- Significant Animation extensions.
- Skinning support rewritten to be much more flexible and performant. Adds support for CPU and GPU based skinning.
- New data passed to shaders in NVSGScene structure: frame counter and scene ambient color.
- Support for NVIDIA Quadro® HD SDI Graphics-to-Video Output.
- New examples and many performance and usability enhancements.
Powered By
