转自:http://http.developer.nvidia.com/GPUGems2/gpugems2_chapter24.html In feature-film visual-effects production, maintaining interactive feedback of high-quality color operations is extraordinarily beneficial to an artist. On the consumer side, enabli…

With EntityFramework’s support for enums, there is no longer any need to include lookup tables in the model. But I do want to have them in the database for integrity, even with code first. I’ve been thinking for some time about to handle enums with c…

http://www.onjava.com/pub/a/onjava/2001/05/30/optimization.htmlComparing the performance of LinkedLists and ArrayLists (and Vectors) (Page last updated May 2001, Added 2001-06-18, Author Jack Shirazi, Publisher OnJava). Tips: ArrayList is faster than…

Hint概述 基于代价的优化器是很聪明的,在绝大多数情况下它会选择正确的优化器,减轻了DBA的负担.但有时它也聪明反被聪明误,选择了很差的执行计划,使某个语句的执行变得奇慢无比. 此时就需要DBA进行人为的干预,告诉优化器使用我们指定的存取路径或连接类型生成执行计划,从而使语句高效的运行.例如,如果我们认为对于一个特定的语句,执行全表扫描要比执行索引扫描更有效,则我们就可以指示优化器使用全表扫描.在Oracle 中,是通过为语句添加 Hints(提示)来实现干预优化器优化的目的.不建议在代码中使…

Milan Ikits University of Utah Joe Kniss University of Utah Aaron Lefohn University of California, Davis Charles Hansen University of Utah This chapter presents texture-based volume rendering techniques that are used for visualizing three-dimensional…

Hash function From Wikipedia, the free encyclopedia   A hash function that maps names to integers from 0 to 15. There is a collision between keys "John Smith" and "Sandra Dee". A hash function is any function that maps data of arbitrar…

[Game Engine Architecture 9] 1.Formatted Output with OutputDebugString() int VDebugPrintF(const char* format, va_list argList) { ; static char s_buffer[MAX_CHARS]; int charsWritten = vsnprintf(s_buffer, MAX_CHARS, format, argList); // Now that we hav…

Acquired from: ftp.adelaide.edu.au:/pub/rocksoft/crc_v3.txt or ftp://ftp.rocksoft.com/papers/crc_v3.txt or http://www.repairfaq.org/filipg/LINK/F_crc_v3.html A PAINLESS GUIDE TO CRC ERROR DETECTION ALGORITHMS =========================================…

原文地址:http://czmmiao.iteye.com/blog/1478465 Hint概述 基于代价的优化器是很聪明的,在绝大多数情况下它会选择正确的优化器,减轻了DBA的负担.但有时它也聪明反被聪明误,选择了很差的执行计划,使某个语句的执行变得奇慢无比. 此时就需要DBA进行人为的干预,告诉优化器使用我们指定的存取路径或连接类型生成执行计划,从 而使语句高效的运行.例如,如果我们认为对于一个特定的语句,执行全表扫描要比执行索引扫描更有效,则我们就可以指示优化器使用全表扫描.在Oracl…

前言:感慨于居然不用tesselation也可以产生这么复杂的地形,当然致命的那个关于不能有洞的缺陷还是没有办法,但是这个赶脚生成的已经足够好了,再加上其它模型估 计效果还是比较震撼的.总之好文共分享吧.Ryan GeissNVIDIA Corporation 1.1 Introduction Procedural terrains have traditionally been limited to height fields that are generated by the CPU and…