Irrlicht Engine

Thx, that works very well! failing to access the pixel values via a "get" function in ITexture made me not look any further there. I did not imagined that a lock function would provide that functionality. Thanks for the help

Hi forum,

I have a problem which I dont know how to solve.

I have some 2d-data that is created dynamically by some process. From that data, I create an image and I want to draw the Image. The data is changing over time and with the data change, the presented image should change as well.

What I ...

For my application, the gui is running independently of the core and takes only a fraction of the total computation power. Therefore, I want to give my "world" as much power as possible and not waste half the computation time on the GUI, waiting to take an other turn. On the other hand, I want both ...

And what does it do during waiting so that the thread does not yield its ressources?

while(wait){}; ?

As I wrote in an other thread, I am running my world and irrlicht in seperate threads. I want the world to run its own speed and let irrlicht draw the scene indepent of the word update cycle.

I figured, I dont need 3000 FPS, so I activated vsync in order to limit the amount of computation time ...

Ok, I guess I know whats hapening. My last C++ was 5 years ago and since then, switching to Java did not made my understadning of heap and stack memory any better. What i did was, to create an object holding the TestGUI class, implicitly calling the constructor of TestGUI. Then, I called an ...

Dear Forum,

I am fairely new to irrlicht and I have a problem which I cant understand. Starting from Tutorial Example 4, I wanted to put the gui example in a proper window-class. So I seperated the while-loop for drawing the window from the definition. This somehow messed everything up. After some ...

The problem arises if both threads swap the variables simultaniously.

Lets say its like that:
pA <-> pB: t = pA; pA = pB; pB = t;
pC <-> pB: s = pC; pC = pB; pB = s;

If the operations occur in this order:

t = pA;
pA = pB;
s = pC;
pC = pB;
pB = s;
pB = t;

pA and pC point to the same object ...

Nice try, but exchanging 2 variables cant be done in one atomic operation (unless I missed some major improvements in computer technology )
a <-> b:

t = a;
a = b;
b = t;

Thnx, yeah, after sleeping it over one night, I think its much less a problem than I thought. For the data that needs to be visualized, I use a tripple-buffer. Lets say for simplicity struct Data A, B, C and a pointer pA = &A, pB = &B, pC = &C to each of them. The simulator writes into pA, when its ...

Dear Forum,

I am new to Irrlicht and I dont want to make a game. Let me explain a bit.

I am working on a fairly complicated simulation and I want to use Irrlicht to visualise the internal variables. The graphics might get more complex in the future, but at moment it is simply some (~10000) circles ...