amorita

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About amorita

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  1. OpenGL Universal OpenGL Version

    I've worked on a commercial OpenGL game for several years and most of my work was in the graphics part of the code.  Speaking from experience, most of the problems we ran into was due to people not having up-to-date OpenGL drivers installed.   Most people (not most hard-core games, but most casual and non-gamers) have integrated graphics solutions (integrated Intel or mobile AMD/NVidia in a laptop) and rarely or never update their drivers from when they first get their machine.  It works well enough for them to surf the web, e-mail, do their work (editing Word/Excel/PowerPoint docs) that they never have an urgent need to update their video drivers.  Also, many of them feel that updating drivers is a difficult thing to do (too technical for them) and are afraid that they will mess up their system.   In addition, the OpenGL support of integrated video chipsets is not necessarily the best to begin with.  And Intel/AMD/NVidia do not provide updates for their older integrated video chipsets which are still in use by many people.  So, some of these people were stuck with older drivers with known bugs in the OpenGL drivers.   In reality, there are a lot more games that use DirectX than use OpenGL (easily 10 to 1 ratio).  So, Intel/AMD/NVidia have not had too much incentive to keep the quality of their OpenGL drivers on par with the quality of their DirectX driver.  But, the quality of the OpenGL drivers in the past few years has greatly improved.   So, the good news is that the quality of OpenGL drivers is improving.  The bad news is that a lot of people are still using (or stuck with) older, buggy OpenGL drivers.
  2. Quadtree dilemma

    You should also look into loose quadtrees.  The benefit is that you can find exactly what level of the tree and what node in that level an object belongs by looking at its bounding center and bounding radius.
  3. Multisampling/Depth Peeling

    GL_EXT_framebuffer_multisample http://www.opengl.org/registry/specs/EXT/framebuffer_multisample.txt
  4. do/while loops

    How about: for (input = ask_user(); input.empty(); complain_to_user()) { /* intentionally left blank */ } or for (input = ask_user(); input.empty(); /* intentionally left blank */ ) { complain_to_user(); }
  5. Virtual methods

    I'm assuming you are asking about C++. The answer is to call A::func() instead of just func().
  6. Roughing it

    As someone who has worked both outside of and inside of the games industry as a programmer, and as someone who has had to interview and recommend hiring/not hiring people, having a degree from a university says that you can stick with something for several years and see it through to the end, even if you don't enjoy it.
  7. games by c++

    In my professional opinion and from what I've observed in the industry, most game development is done in C++ because that is what will run on all major platforms (PC, X-Box/X-Box 360, PS2/PS3, GameCube/Wii, Nintendo DS, PSP). If you start game development with C#, you immediately limit your potential customer base to PC and X-Box/X-Box 360. And remember, the PS2 currently has the largest install base (outside of PCs).