dev.spunkmeyer.de

Feb 08

Multithreaded hierarchical realtime profiling

I added a new module to the SP Game Framework:

A profiling system capable of multiple threads and hierarchical structures. The profiling results can be watched in realtime on screen. Here is a screenshot of my actual proof of concept for solar tactica:

To profile your application you can add macro code which will generate a scoped variable. Time is measured from construction of this variable until the destruction. You can easily measure chunks of code with scoping brackets {}.

If your application is ready to be realeased, just define SP_RELEASE_VERSION and the macro code will not end up in your application. No performance impact!

Have fun.

Oct 23

Emulating the human eye

I worked on a 'virtual eyeball' to create images that somewhat model the signals going to the brain.

Since the the eye has more receptors in the center of it, the center is sharper and more detailed. The color channels (gray-tones were eleminated) are half the resolution since the human eye has less receptors for colors than for brightness.

I used a barrel distortion formula which I altered a bit to get the center sharp while the edges are heavily bended.

First screenshot of the eyeball system:

The original microscopy-image was made by Norman Reppingen in 2007 (found by google: http://www.mikroskopie.de/mikforum/read.php?2,30983,30983#msg-30983).

Aug 27

Cool 2D lines with openGL

I wanted to use openGL lines for lasers.

But how to make bigger lasers? How to make cool looking lasers?

One way is to call glLineWidth() and make the line thicker. But there are 3 downsides: not every graphics-card supports it, the ends of the line seem 'cutted' and it does look very 'flat'.

Read the full article

Aug 24

My First LD is over

I wrote a more detailed post at the ludum dare-site:

http://www.ludumdare.com/compo/2010/08/23/summary-my-first-ld/