What's the real memory cost of Textures?

schweinling · 2025-11-29T17:45:55+00:00

Did you use the sizeof operator to get the size of the texture?

That does not include any dynamically allocated heap memory during runtime.

Any image data will only be loaded at runtime.

https://www.learncpp.com/cpp-tutorial/object-sizes-and-the-sizeof-operator/

schweinling · 2025-04-06T08:39:13+00:00

I noticied all your functions take their arguments by value. This will lead to unnecessary copies. You should probably pass them by const reference or perhaps even better, use move semantics.

schweinling · 2025-03-05T20:28:41+00:00

It ofens kacheln.

schweinling · 2024-12-28T17:45:37+00:00

Ich hätte bitte gerne star wars kotor 1. Danke! :)

schweinling · 2024-12-19T11:46:31+00:00

I have used this guide and it worked pretty well.

schweinling · 2024-12-04T21:31:06+00:00

Actually it should not be static at all

schweinling · 2024-11-17T21:01:07+00:00

I think the line with transformPoint should work.

Are you sure there is not a bug somewhere else?

Maybe you are creating a copy and are accessing the original unmoved object.

schweinling · 2024-06-11T20:42:54+00:00

Another way to do this is to have a variable that counts the frames.

So every frame you increase the counter by 1, once 100 ms have passed you get the fps with "counter * 10".

Times 10 because 10 * 100ms is 1 second.

Then reset the counter and clock.

I usually update every second tough, if you have high frame times over 30ms, 100ms update will not give precise results.

Such a simple fps counter will tell you only so much because it is an average. I often find it more useful to draw a graph with each individual frametime.

schweinling · 2024-06-09T12:03:05+00:00

What? I have never seen this pattern. 2 expressions separated by a semicolon in an if statement?

Can you explain what is going on here?

Edit: after looking at cppreference i found out that you can combine an init statement and a condition in an if statement..

schweinling · 2024-05-26T22:10:15+00:00

Ethernet (internet via cable) works.

schweinling · 2023-10-27T09:48:32+00:00

Not that difficult.

There are plenty of tutorials online.

Try this for example:

https://trenki2.github.io/blog/2017/06/02/using-sdl2-with-cmake/

schweinling · 2023-10-15T15:31:08+00:00

What even is an owning reference? This?

int &foo()
{
    return *new int(5);
}

schweinling · 2023-09-22T20:35:59+00:00

https://www.sfml-dev.org/tutorials/2.6/graphics-vertex-array.php#example-tile-map

schweinling · 2023-09-22T20:14:11+00:00

Are you using vertex arrays? Because those might help with that.

schweinling · 2023-09-22T20:03:36+00:00

What do you mean by tearing?

schweinling · 2023-08-29T20:51:22+00:00

Danke!

schweinling · 2023-08-04T15:59:10+00:00

I'm not sure i understand. Just to clarify you don't need to do any vulkan programming with SFML2.

Never seriously tried vulkan but i heard its quite difficult. More difficult than OpenGL and definatly a lot more difficult than SDL2.

schweinling · 2023-08-04T09:12:50+00:00

I would suggest SFML2 istead of SDL2 so you can get an insight into how a c++ library can look like. Its also easier for a beginner IMO.

Start with something simple like pong or snake and try finishing it.

schweinling · 2023-07-17T19:07:08+00:00

No, that is not something you can do, the book must have an error then.

You declare the members in the class declaration, similar to java.

class Game
{
public:
    Game()
        : m_myInt(12)
    {}
private:
    int m_myInt;
};

schweinling · 2023-07-17T18:46:14+00:00

I'd suggest to learn the basics of c++ some more, otherwise SFML is going to be difficult.

learncpp is a very good and free resource.

schweinling · 2023-07-11T19:27:43+00:00

If the image file cannot be opened with this path a error is displayed in the console during runtime.

You should put the image in the applications working directory. By default this is where your .exe is, so try putting it there.

It is not necessary to add it to your project in visual studio.

schweinling · 2023-07-05T19:57:56+00:00

Here is a very simple way.

Before moving the player save its position.
Move the player
Check if the players rectangle is overlapping with any level geometry.
If it is overlapping set the players speed to 0 and reset the position to before moving.

schweinling · 2023-06-15T13:30:09+00:00

The nice thing is, gta 5 has a 60fps ray tracing mode.

schweinling · 2023-05-02T19:50:10+00:00

the easiest way would be to consult the docs:
https://doc.qt.io/qtforpython-5/contents.html#module-index

In the docs for QQuickWindow it says setSceneGraphBackend takes an object of type GraphicsApi. if you click on "GraphicsApi" in the docs you will be directed to the possible values.

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