#AltDevBlogADay » C/C++ Low Level Curriculum Part 10: User Defined Types
Technical Director at Gamer Camp, Indy Developer, and Stay at Home Dad. Alex, or darbotron to his friends, has worked in the game industry since 1996. He is very proud to have been one of the founding members of FreeStyleGames, and to have been involved in the creation of DJ Hero. Hello again peoples of the interweb. It has been quite a while since the last one (probably even longer than the gap b
#AltDevBlogADay » Understanding the Fourier transform
I'm a graphics/systems programmer with 14 years in the industry, and my credits include Madden, Bond, and Need for Speed. I'm currently doing the indie thing. My specialties are optimization, rendering, concurrency, and compilers. I am delighted by all the pretty colors. Yes, I realize that after reading the title of this post, 99% of potential readers just kept scrolling. So to the few of you who
#AltDevBlogADay » Building an HTML5 Game? Don’t Shrug Off Atlases.
Colt McAnlis Colt McAnlis is a Developer Advocate at Google focusing on Chrome Games and Native Client; Before that, he was a systems & graphics programmer in the games industry working at Blizzard, Microsoft (Ensemble), and Petroglyph. He also spent 4 years as an Adjunct Professor at SMU Guildhall's school for game development, where he taught classes on math, physics, graphics, and concurrent pr
#AltDevBlogADay » Static Code Analysis
John-Carmack Founder and technical director of Id Software and Armadillo Aerospace The most important thing I have done as a programmer in recent years is to aggressively pursue static code analysis. Even more valuable than the hundreds of serious bugs I have prevented with it is the change in mindset about the way I view software reliability and code quality. It is important to say right up fron
#AltDevBlogADay » Students : Game AI vs Traditional AI
Luke Dicken is a specialist in Game AI, currently attached to the Strathclyde AI and Games Research Group at University of Strathclyde. He is also the founder of Robot Overlord Games, where he puts his knowledge into practice. In his abundant spare time, he is one of the principal organisers for the AltDev Conference series, a director at IGDA Scotland and currently serves as the chair of the IGDA
#AltDevBlogADay » SQL Server: High performance inserts
In order to write high performance SQL code, we need to know more about what’s going on underneath the hood. We won’t need to go into exhaustive details on SQL Server’s internals, but we’ll go in depth into a simple challenge and show you how you can create robust scalability one feature at a time. Other articles in this series: Part 1: Effective SQL Server Techniques Storing Data In SQL Server Le
#AltDevBlogADay » Xperf Wait Analysis–Finding Idle Time
The Windows Performance Toolkit, also known as xperf, is a powerful (and free!) system-wide Windows profiler. In the past I’ve talked about using xperf to identify slowdowns in PowerPoint by using xperf’s built-in sampling profiler, but that actually understates the true value of Xperf. While I think xperf is a better sampling profiler than most of the alternatives (higher frequency, lower overhea
#AltDevBlogADay » Software Rasterizer Part 2
Introduction Continue with the previous post, after filling the triangle with scan line or half-space algorithm, we also need to interpolate the vertex attributes across the triangle so that we can have texture coordinates or depth on every pixel. However we cannot directly interpolate those attributes in screen space because projection transform after perspective division is not an affine transfo
#AltDevBlogADay » Functional Programming in C++
Probably everyone reading this has heard “functional programming” put forth as something that is supposed to bring benefits to software development, or even heard it touted as a silver bullet. However, a trip to Wikipedia for some more information can be initially off-putting, with early references to lambda calculus and formal systems. It isn’t immediately clear what that has to do with writing
#AltDevBlogADay » Software Rasterizer Part 1
Introduction Software rasterizer can be used for occlusion culling, some games such as Killzone 3 use this to cull objects. So I decided to write one by myself. The steps are first to transform vertices to homogenous coordinates, clip the triangles to the viewport and then fill the triangles with interpolated parameters. Note that the clipping process should be done in homogenous coordinates be
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#AltDevBlogADay » C/C++ Low Level Curriculum Part 7: More Conditionals
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