Questions tagged [hardware-acceleration]

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0answers
236 views

Should I use ASTC

So I read about ASTC and that it should be preferred over S3TC. Where I'm concerned is the current status of hardware support. According to Wikipedia every major GPU manufacturer supports ASTC but ...
1
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0answers
277 views

Why are my wheels not moving at the same speed as my car?

I need help with some wheel rotation I set up for my game. My wheels are moving 3x faster than the acceleration speed of my car. Also, I can't work out why my car is moving so slow and the brakes not ...
1
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2answers
804 views

How do I create my own GPU accelerated graphics API in C#?

I am creating 2D game engine in C# and I need some graphic API, so that user can draw sprites or convex vector shapes. I tried to use GDI+ for it. But I discovered that GDI+ is not GPU accelerated and ...
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0answers
27 views

Fallback for R32F alpha blending

I'm rendering an aggregation of value into an R32F format texture, using alpha blending to accomplish the sum operation. R32F alpha blending is not supported on all hardware. What kind of fallback ...
0
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1answer
189 views

Unity move canvas slightly with smartphone acceleration

I'm developing an AR-App with the Samsung-GearVR. To get a smooth UI, I thought about creating a UI, which is not completely fix, I thought it could be nice, when the UI is slightly behind my head ...
0
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2answers
417 views

Switched from immediate mode to VBOs, game runs slower

trying to improve draw performance on my c++, OpenGL, SDL game. Back in school we mostly learned immediate mode, so thats how my drawing was originally implemented. When I started reading up online ...
4
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0answers
650 views

Windows vs OSX Performance with SDL, OpenGL [closed]

I have been writing an SDL OpenGL game in c++ for a couple of years now, writing my own engine for the most part (using Box2d for physics). I'm primarily a mac user, so I've been using xCode to write ...
8
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1answer
220 views

Is quadrilinear texture sampling hardware supported?

If you have a volume texture with mipmaps, GL_LINEAR_MIPMAP_LINEAR texture sampling will perform quadrilinear texture sampling. Is that implemented in hardware like bilinear texture sampling is? Or ...
4
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0answers
157 views

Why is my OpenGL enabled Java game not detected by Fraps?

Recently I found out that I could enable OpenGL hardware acceleration in my Java game with the line System.setProperty("sun.java2d.opengl", "True"); Initial ...
2
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1answer
150 views

Real hardware acceleration of vector images?

Basically vector graphics have many advantages, especially that they scale very nicely. So there are many reasons to use them in 3D and 2D games. Is there any support for hardware accelerated vector ...
2
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0answers
936 views

Android: Hardware Scaler

I was reading through this: using-hardware-scaler-for-performance and am a little confused by it. It says all you need to do to invoke the scaler is to set it like so: ...
2
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4answers
1k views

Can sprite sheet width and height affect performance?

Is there any performance difference in the way the images are placed inside a sprite sheet image (for the same total area)? For example, should I place 50 sprites (50x50 each) in a linear way ...
2
votes
1answer
8k views

Is basic SDL hardware accelerated?

I'm going over some SDL tutorials aimed at creating 2D games. However, when I create a basic SDL program - is it hardware accelerated? Or is hardware acceleration only relevant when it comes to 3D ...
10
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1answer
2k views

C#/XNA get hardware mouse position

I'm using C# and trying to get hardware mouse position. First thing I tryed was simple XNA functionality that is simple to use ...
0
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2answers
766 views

What techniques can I use to render very large numbers of objects more efficiently in OpenGL?

You can think of my application as drawing a very large ball-and-stick diagram (or graph). At times, this graph can get very large, where the number of elements even outnumbers the pixels on the ...
0
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1answer
424 views

Moving a sprite accelerometer

Im trying to, in cocos2d for the iPhone, move a CCSprite (in this case "player" up and down (the app is in landscape). How can I accomplish this? I have been unable to do so. ex. ...
4
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3answers
943 views

Why would GLCapabilities.setHardwareAccelerated(true/false) have no effect on performance?

I've got a JOGL application in which I am rendering 1 million textures (all the same texture) and 1 million lines between those textures. Basically it's a ball-and-stick graph. I am storing the ...
8
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6answers
972 views

Is it possible to write a game that doesn't require a GPU?

I already know many computers today have a GPU that supports DirectX and OpenGL. But what about computers that don't? Can I write a simple 2D game that does not rely on the GPU, so that it works even ...
0
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1answer
552 views

Game (X-Plane) boot/startup time / performance

I use X-Plane for my question but it also concerns probably every other flight-simulator or simulation game in general. When developing a plugin what bothers me most is the startup-time of the ...
1
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1answer
188 views

optimal pixel-read back strategy

I need to render certain scenes and read the whole image back in main memory for further processing which is not suitable for rewriting into shaders of CUDA, and saving to disk. I've search for this ...
0
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1answer
162 views

Cross-browser cross-platform web support for immersive/non-casual games

I have heard of many plugins/browser technologies that are useful for games, but I didn't dive into any of them yet because I've assumed that omni-support wasn't quite there. By omni-support, I mean ...
3
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5answers
266 views

How to cover the widest range of computers when publishing?

When you plan a game, or even when you already made a game, and its time to publish, you wonder how much of your audience is covered by the game technology demands. I'm directing this essentialy to ...
41
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3answers
11k views

What is the purpose of the stencil buffer ? More precisely, what is a stencil in computer graphics?

I read the stencil word a lot, and I don't have a clue what is its real purpose in computer graphics. Seeing the picture in black and white on wikipedia, I'm still having problem with it. Why do we ...
5
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2answers
512 views

Hardware acceleration for the Flash Player

What do we know about hardware acceleration for drawing operations in Flash? I know that since 10.1 it's there for video playback (and mobile graphics) but that doesn't really help with rendering ...