Questions tagged [memory]

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3
votes
1answer
769 views

RAM usage unusually high, but CPU usage relatively low

I've created a relatively simple game using libgdx, but the RAM usage when I start up the game on my Android device is roughly 600-700 mb, but the CPU usage is only about ~0.05%. I've downloaded a ...
3
votes
1answer
210 views

Is keeping all my game art in a static class wasting memory?

When I make games, I generally create a static class called Art that has static fields to track all content in the game. For example ...
1
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1answer
1k views

About HLSL array packing policy

This is not a question but a confirmation if I'm correct about the behavior of HLSL arrays. I'm working with a standard lighting vertex shader, HLSL plus C++, DirectX11.1 API. For storing my lights ...
1
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0answers
231 views

Memory leak with glfwSetWindowTitle? [closed]

I am using GLFW for a game, and I have a function which allows me to set the window title. ...
1
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0answers
46 views

Animated Typing Memory Usage with Immutable Strings

Right now I'm programming a game that has an animated typing effect typically seen in older 1980's and 90's role-playing games. An example can be seen here. The typing effect is generated by taking a ...
1
vote
1answer
210 views

Why loading ~250mb of compressed texture data spills Out of memory error on Windows

I am making SDL2/OpenGL 2D game for Windows with a lot of pre-rendered sprites. When testing on my laptop I got SDL_Surface creation failed: out of memory error ...
1
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1answer
3k views

Unity: why game app on Android takes up much more memory than Unity Profiler reports?

We are profiling a game app on Android 4.4.2 device via Unity’s ADB profiling. We have set up ADB profiling following the official guide: http://docs.unity3d.com/Manual/Profiler.html The ADB ...
-2
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1answer
768 views

Libgdx incredibly high RAM usage! [closed]

Alright so I'm new to Libgdx and Game programming in general, and I've got a huge problem. If I leave my game on, it will start to eat memory, pretty fast at that, until it reaches a point my PC hasn'...
1
vote
1answer
469 views

Method of handling audio and memory in game

I've started coding a new game project and I've implemented Ogre for the graphics rendering and begun thinking about the audio side of things. I was considering using the SFML audio component for ...
4
votes
1answer
486 views

When does the memory transfer from CPU to GPU happen when creating a buffer?

I just finished my first DirectX 11 program. But I have several questions on memory transfer between CPU and GPU. In my program, I create a vertex buffer first: ...
2
votes
1answer
126 views

Java - Loading background music into memory

I am currently developing a game with Java, with a soundtrack consisting of ten tracks in .ogg format, 1-2 MB in size each. To be able to switch between these tracks quickly and easily in the game, ...
2
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0answers
336 views

SDL2 SDL_CreateTexture returns pointer to existing texture

I have an initialized renderer in SDL2 that works fine. I create some textures from images using SDL_CreateTextureFromSurface and store them in a vector. ...
1
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2answers
125 views

How can I minimise memory thrashing when doing vector math in JavaScript or ActionScript?

Please note that a similar question has been asked before in the context of C#. Say I'm building a 3D game in Javascript or Actionscript, and doing a lot of 3D vector math. In current libraries, ...
6
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5answers
2k views

How to make blocks like “redstone” working in a minecraft-like game when the chunks are not loaded

I'm working on a 2D minecraft-like game, I use chunks to save my world and each chunk has 128*128 blocks in it. And infinite chunks can create an infinite world. Memory should never be infinite and ...
1
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2answers
298 views

Smallest, most memory-efficient way to have tiles? (C++/OpenGL)

I need to have tiles in my game, just 16x16 images, there would be hundreds (or even thousands) that make up a level. Of course it's not viable to have thousands of memory-hog normal entities, but ...
0
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1answer
2k views

Segmentation fault on reallocation of memory but why? [closed]

I have been learning to code in C from this amazing resource http://c.learncodethehardway.org/book/ I am on exercise 17. Basically creating your own simple database using Malloc. I modified the ...
7
votes
2answers
631 views

Should a game clean up after itself when exiting? [closed]

Should a game/engine clean up after itself(close windows, shut down renderers, close files, free memory) when its closed? The OS should do that anyway, and usually in a faster way. I guess most ...
1
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2answers
700 views

Efficient UI for RTS units

I was wondering how I should approach the runtime changes on the game UI when selecting different types of units in a RTS. For example, in Starcraft, each unit type has its own portrait, attributes, ...
1
vote
1answer
122 views

How do I destroy a SDL_Finger pointer?

Hello I'm using SDL with C++ and I got this code: void handleEvents() { SDL_Finger* finger = SDL_GetTouchFinger(SDL_GetTouchDevice(0), 0); } I do not know ...
4
votes
1answer
973 views

glBufferData consuming system memory

I am memory profiling my game in Visual Studio and about 60% of memory usage is happening from calls to glBufferData(). I may be missing something but should this ...
2
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0answers
1k views

Find References In Scene of scriptable object unity asset shows incorrect results

I'm trying to work out why my game is loading a large sprite atlas that I don't think it should be. The snapshot view of the profiler shows that the atlas is loaded. The references pane shows that it'...
2
votes
2answers
133 views

Destroying object from object method

My game uses an entity manager and entities to represent everything including the player, enemes, items, ..everything in the game. In my engine it's the responsibility of every entity to update itself....
0
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1answer
142 views

Is there a reason to keep maps in memory?

I've noticed for a long time that games (mostly FPSes) do not unload the map when the user has finished with it (aka, disconnecting from servers, server changing maps). The result of this is that the ...
0
votes
1answer
469 views

Why does Unity save textures in bitmap format for APKs and IPAs?

Why does Unity save graphic resources in Android apks and iOS ipas in a bitmap format(width*height*bpp)? I want to save my resources in a small apk, but instead of 1mb for an image Unity stores 11mb ...
0
votes
1answer
4k views

Need help in tracking down memory leak in Unity standalone game

I'm experiencing a memory leak in my Unity game. If the game sits idly (no new game objects are being created in the scene), Windows Task Manager will show the memory of the .exe slowly rising. I've ...
2
votes
1answer
502 views

Box2dWeb: must fixtures be destroyed explicitly when destroying the body?

I use b2WorldObj.DestroyBody(bodyObj) to destroy the body when it is not needed anymore. The body has one fixture attached to it. Do I need to destroy the fixture before destroying the body? or ...
0
votes
1answer
885 views

Memory-leak around SDL_FreeSurface

When I call my tile engine function, the amount of memory my program uses begins to spike at about 80 - 90 megabytes per second. The memory use continues to go up until the program crashes. The ...
0
votes
1answer
219 views

Bullet pointer becoming zero [closed]

I am currently trying to implement the Bullet physics into my game project. However, when i add some rigid bodies to the scene, i occasionally get an error in btDbvtBroadphase.cpp at the line if(...
4
votes
1answer
1k views

Do OpenGL buffers overflow to CPU memory?

This is a question about OpenGL buffers and memory. My game world is mid-sized, one contiguous space, unchanging, and only partially visible from any position. Will modern OpenGL overflow buffers ...
15
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5answers
1k views

Why is chunk size often a power of two?

There are many Minecraft clones out there and I am working on my own implementation. A principle of terrain rendering is tiling the whole world in fixed size chunks to reduce the effort of localized ...
-1
votes
2answers
121 views

How to glow a UIButtons in sequence

I am working on a memory based matching puzzle game. For that I need to glow buttons in a sequence that's generated randomly. I am glowing the buttons by changing its background images. I'd like to ...
1
vote
1answer
1k views

Techniques for managing vertex buffer memory

I'm learning OpenGL and I haven't seen any advice on managing vertex buffers in all of the tutorials I've read. The basic problem is that I have some memory allocated as a buffer B in which I'm going ...
4
votes
1answer
716 views

Should I be concerned about assets being accessed by dumping VRAM?

I have heard many people tell me that a user can dump the VRAM on their GPU and get all the images in my game. Including all "Streamed" images. This includes most of my Menu graphics. How would a ...
1
vote
1answer
258 views

Can I use memcpy() with XMMATRIX?

I.e. can I do this: XMMATRIX dxMat; Matrix myMat; std::memcpy(&myMat, &dxMat, sizeof(XMMATRIX)); std::memcpy(&dxMat, &myMat, sizeof(XMMATRIX)); <...
1
vote
1answer
189 views

Floating point memory usage on gpu

My question is simple: how much memory on GPU does one floating point value takes? I guess it is 4 bytes, but I'm not sure. So for example is it true that vec4, which holds 4 floats, each 4 bytes ...
1
vote
1answer
68 views

Will function-local objects affect my performance over time?

This is a very simple question. Let's say my render loop runs at 60Hz, in each call to render(), I draw all my game's buildings, characters and scenery to make the current frame ready. Each of these ...
7
votes
2answers
5k views

Vertex buffers - interleaved or separate? [closed]

Interleaved - all vertex data (position, normal, texcoord...) kept in 1 vertex buffer, separate - each vertex attribute is kept in a separate vertex buffer (1 for positions, 1 for normals...). I know ...
16
votes
3answers
9k views

CPU - GPU memory data flow [closed]

I'm a newbie graphics programmer and I've been wondering recently - how does model data (meshes and materials) flow from application (CPU memory) to graphics card (GPU memory?)? Say I have a static ...
2
votes
2answers
4k views

std::map for storing static const Objects

I am making a game similar to Minecraft, and I am trying to fine a way to keep a map of Block objects sorted by their id. This is almost identical to the way that Minecraft does it, in that they ...
1
vote
1answer
785 views

Why doesn't RGB565 lead to a smaller memory footprint on Android?

I'm using LibGDX for my game. I'm loading 9 bitmaps into memory at once using the AssetManager, about 512x512 pixels each on average. ...
3
votes
2answers
1k views

Memory Leak in SharpDX

one Thing I found out: Windows 7 produces a memory leak while using certain methods to access rendertargets. Why doesn't Windows 8 leak at this method? ...
3
votes
2answers
180 views

Circular Method Calls

The title may be a little wrong for what I am asking, but that was the closest I could think of. My problem is I am making a game that includes a World class and a ...
3
votes
2answers
3k views

What is the range of RAM consumption for the typical 3D character in a video game?

What is the average number of KB in memory for a 3D character? Granted, this will obviously be biased based on what game we're talking about. However, I am less interested in actual size in KB, and ...
0
votes
1answer
299 views

An API independent way of managing video memory?

I'm developing a game. The game architecture is very modular. I have a "Graphics Engine", which uses either a Direct3D or OpenGL renderer. However the user does not have access to the renderers ...
3
votes
2answers
214 views

Spritesheet filesize gets huge after compiling

I have a 14x2 spritesheet which has 125 Kb in raw .png. But as soon as I compile that to .xnb, it mutates to 4 MB. So my question is: Why is that? And how can I fix that?
2
votes
1answer
287 views

How to load up many images without using too much memory

When writing games, I am aware that images take up a lot of space. If one has a large graphical game, they don't want problems with memory, or to give players the message "Go buy a better computer to ...
-4
votes
3answers
231 views

When do assets get loaded into video memory? [closed]

Specifically when do textures / geometry load into video memory? Do objects need to be in a direct line of sight (on screen) or are they drawn in at a certain camera radius? Obviously thing like ...
6
votes
1answer
2k views

MMORPG game map in-memory storage techniques

For 2-3 years I've been interested into MMO development. I'm browsing some emulators source codes and open source projects. Usually I'm checking how the game server stores data about the 2D map. ...
6
votes
1answer
1k views

Why do mesh classes still contain vertex arrays if VBO's exist?

I find I'm a bit confused about the practical use of resource management in combination with memory not tied to the CPU. Correct resource management is often recommended in game tutorials, books and ...
0
votes
1answer
238 views

Storing large array of tiles, but allowing easy access to data

I've been thinking about this for a while. I have a 2D tile bases platformer in XNA with a large array of tile data, I've been running into memory problems with large maps. (I will add chunks soon!) ...

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