GPU (graphics processing unit), is a specialized processor designed to accelerate the process of building images.

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Is there any guarantee about the graphical output of different GPUs in DirectX?

Let's say that I run the same game in two different computers with different GPUs. If for example they are both certified for DirectX 10. Is there a guarantee that the output for a given program (game)...
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2answers
4k views

How can I program on the GPU in Unity?

In my previous question, I asked about why people don't program on the GPU. Now I am learning about fluid dynamics with this article. They say that it should all be done on the GPU. The game engine ...
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2answers
593 views

How to check Early Z efficiency on AMD GPU with Windows 7

I have a game using DirectX 9, and a development station using Win 7 x64. I am still able to get access to another station with Vista x64 / dual booted with WinXP x86. I wanted to check early Z ...
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5answers
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Skipping glReadPixels and reading iPhone's “VRAM” directly

I'd like to rapidly capture "screenshots" of my OpenGL ES iPhone game and turn them into a video. I've tried the following approach (it works but degrades the game play to an unacceptable level): ...
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2answers
11k views

How many “parallel units” does a GPU have?

I'd like to know how many parallel units for processing vertices a GPU has. This Wikipedia page provides a GFLOPS and clock speed, for example for the Radeon 5850 "Broadway PRO", you get 1000 GFLOPS. ...
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2answers
6k views

How to enable GPU for flash player 11?

I just install Flash Player 11 and SDK 4.5 (hero), and test it with a small program. But I find it is still using "software" to simulate 3D API, and trace("driver info: " + _context3D.driverInfo); ...
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3answers
889 views

I would like to know how an OpenGL driver will be implemented to learn opengl internals?

I'm learning OpenGL and really like to know how the interaction with the Graphics card will be. I feel understanding how it was implemented in the Graphics driver, will let me know complete internals ...
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2answers
910 views

Graphics capabilities differences between mobile and desktop/console platforms?

I would like to better understand the difference in capabilities between mobile and desktop/console graphics? What exactly are the limitations of a mobile device? What kind of operations can a high-...
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3answers
376 views

Drawing the same mesh or drawing the same material?

I was wondering. Suppose I have a 1000 grass meshes. They all have the same material, but I create them separately, because they look slightly different, because they have different heights. Does my ...
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3answers
976 views

How to find the bottleneck of the graphical pipeline

I've been wondering about this issue for a while. How to find the bottleneck of the graphical pipeline. Recently I've been using a program to draw massive amount of polygons in a simple scene with ...
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4answers
9k views

How much memory does a texture take up on the GPU?

A large png on disk may only take up a couple megabytes but I imagine that on the gpu the same png is stored in an uncompressed format which takes up much more space. Is this true? If it is true, how ...
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Geometric Transformations on the CPU vs GPU

I've noticed that many 3d programs normally do vector/matrix calculations as well as geometric transformations on the CPU. Has anyone found an advantage in moving these calculations into vertex ...
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4answers
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Is it possible to use the GPU on a mobile device to accelerate a particle physics engine?

I am interested in answers for any mobile device but I am mainly considering the iPhone and devices that run Java. I am developing a game that relies heavily on a particle physics engine for core ...
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2answers
1k views

Dump texture from memory to the original format?

How can you dump GPU memory (images and such that are loaded on it) to the standard format ?
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2answers
610 views

What will AMD Fusion or likewise hybrid CPU/GPU will change for the 3D programmer ? Are they potentially faster?

Since the early days of accelerated graphics, programmers were obligated to use hardware-supported libraries like directX or OpenGL. If we wanted to explain someone what happened by introducing a ...
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2answers
498 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 ...