iOS Games To Buy!
geometry Archive
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Scenegraphs are cool…
Posted on December 28, 2011 | No CommentsMany things are cool, like this screenshot of XCode for example… this is what happens when debugging iOS apps that use OpenGL, there’s a handy button to click that lets... -
Speeding over the icy wastelands of $insert_name_here
Posted on December 14, 2011 | No CommentsThere has been progress on my “fly endlessly down some sort of canyon” iPad thing. Quite a lot of this progress has been non-visual infrastructure code where I’ve taken hastily... -
OOh Crikey! Wot a lot of green!
Posted on November 13, 2011 | 1 CommentBack when I owned an ST (well, I still have it, but you know what I mean) one of my favourite demos was Ooh Crikey! Wot a Scorcher By The Lost... -
OpenGL ES 2.0 First Light
Posted on October 26, 2011 | No CommentsAfter a lot of chopping of code, rewriting bits and pieces and generally trying to turn a hacked mess into something more structured I have this… What you’re looking at... -
Debugging via telepathy
Posted on October 20, 2011 | No CommentsSo after creating a fun little iOS game using OpenGL ES 1.1 I decided the next thing I create should use ‘real’ 3D, rather than simply bashing OpenGL into managing... -
Linear Algebra, Analytic Geometry and other stuff you never saw the point of
Posted on September 22, 2011 | No CommentsThere will be a less predictable image in a future post, once I produce something worth looking at that makes sense to you. I’ve been spending the past few weeks... -
Find opposite angle in radians
Posted on April 18, 2011 | No Comments// Finds the angle that is 180 degrees from the given angle, but in radians fmodf((angle + M_PI), (M_PI * 2)) -
LERP between angles in radians
Posted on March 16, 2011 | No Comments#include < stdio.h > #include < math.h > #define M_PI 3.141 #define PI180 (M_PI/180) #define DEG2RAD(x) (x * PI180) float getShortAngle(float a1, float a2) { float angle =... -
Shortest distance between two angles
Posted on March 16, 2011 | No Commentsfloat getShortAngle(float a1, float a2) { float angle = abs(a1 - a2)%360; if(angle > 180) angle = 360 - angle; return angle; }; printf ("%f", getShortAngle(360, 720)); -
Android Notes: OpenGL ES 1.0
Posted on January 26, 2010 | No CommentsLet’s take a diversion into the world of OpenGL, specifically the implementation of OpenGL that lives inside an Android powered device. So, OpenGL ES 1.0 then. I’ll be learning about...