3D graphics hardware accelerator programming methods for real-time visualization systems

2001 ◽  
Author(s):  
Andrew E. Souetov
Keyword(s):  
Real Time ◽  
Graphics Hardware ◽  
3D Graphics ◽  
Hardware Accelerator ◽  
Real Time Visualization ◽  
Visualization Systems

scholarly journals Fast and Reliable Mouse Picking Using Graphics Hardware

2009 ◽  
Vol 2009 ◽  
pp. 1-7 ◽  
Author(s):  
Hanli Zhao ◽  
Xiaogang Jin ◽  
Jianbing Shen ◽  
Shufang Lu
Keyword(s):  
Real Time ◽  
Time Complexity ◽  
High Performance ◽  
Linear Time ◽  
Graphics Hardware ◽  
3D Graphics ◽  
Novel Approach ◽  
Geometry Shader ◽  
Intersection Test ◽  
Fast Responses

Mouse picking is the most commonly used intuitive operation to interact with 3D scenes in a variety of 3D graphics applications. High performance for such operation is necessary in order to provide users with fast responses. This paper proposes a fast and reliable mouse picking algorithm using graphics hardware for 3D triangular scenes. Our approach uses a multi-layer rendering algorithm to perform the picking operation in linear time complexity. The objectspace based ray-triangle intersection test is implemented in a highly parallelized geometry shader. After applying the hardware-supported occlusion queries, only a small number of objects (or sub-objects) are rendered in subsequent layers, which accelerates the picking efficiency. Experimental results demonstrate the high performance of our novel approach. Due to its simplicity, our algorithm can be easily integrated into existing real-time rendering systems.

Sign in / Sign up

Export Citation Format

Share Document