GPU (graphics processing unit), is a specialized processor designed to accelerate the process of building images.
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1answer
25 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 ...
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1answer
62 views
Low-level GPU code and Shader Compilation
Bear with me, because I will raise several questions at once. I still feel, though, that overall this can be treated as one question that may be answered succinctly.
I recently dove into solidifying ...
2
votes
1answer
186 views
HTML5 - Does it have the power to handle a large 2D game with a huge world?
I have been using XNA game studio, but due to private reasons (as well as the ability to publish anywhere & my heavy interest in isogenic engine), I would like to switch to HTML5.
However, I have ...
25
votes
5answers
857 views
Why do GPUs require game specific drivers?
PC GPU driver updates often cite improvements made to performance of specific, recently released games. Why is this game-specific updating needed? How do the game-specific changes interact with the ...
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1answer
240 views
Information about rendering, batches, the graphical card, performance etc. + XNA?
I know the title is a bit vague but it's hard to describe what I'm really looking for, but here goes.
When it comes to CPU rendering, performance is mostly easy to estimate and straightforward, but ...
3
votes
1answer
189 views
Is the series of books “GPU Gems” still good for a modern OpenGL 3.0+ approach?
I noticed that this series of free books from Nvidia is really popular and well know in the devs world, the problem is that is simply old; you would recommend to read those 3 books to a developer that ...
6
votes
2answers
218 views
Must I worry about quad-based rendering in real world scenarios?
Most of the time in the first chapters of a random book about rasterization and rendering techniques, I find some phrases about a triangle-based rendering system and a quad-based one.
I have never ...
0
votes
2answers
93 views
Is it possible to read the frame to be output to the screen from GPU in XNA?
I want my XNA game to do its thing and at the end of the Draw() call read the the frame that is sent to the screen into memory (which in XNA would presumably be a Microsoft.Xna.Framework.Color[]).
Is ...
6
votes
2answers
680 views
Random number hlsl
How do you generate a random number in HLSL?
I'm asking because I want to try gpu ray tracing. You need to generate random directions in a pixel shader. So I want randFloat(), where the result is a ...
5
votes
2answers
346 views
How to take advantage of multiple core GPUs
I'm interested in developing for the new Nexus 7 tablet when it finally arrives. I've done a little OpenGL development for Android but I'm not sure what I have to do to take advantage of the 12-core ...
3
votes
3answers
278 views
How can I view an R32G32B32 texture?
I have a texture with R32G32B32 floats. I create this texture in-program on D3D11, using DXGI_FORMAT_R32G32B32_FLOAT. Now I need to see the texture data for debug purposes, but it will not save to ...
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votes
0answers
182 views
OpenGL FBO to OpenCV image
I am trying to figure out the best way to share an image between OpenGL and OpenCV libraries. I perform a render to texture on OpenGL, so I have and FBO/texture that then I want to pass it OpenCV, ...
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votes
2answers
205 views
CUDA 4.1 Update
I'm currently working on porting a particle system to update on the GPU via the use of CUDA. With CUDA, I've already passed over the required data I need to the GPU and allocated and copied the date ...
5
votes
1answer
674 views
HLSL - Creating Shadows in 2D
The way that I create shadows is by the following technique:
http://www.catalinzima.com/2010/07/my-technique-for-the-shader-based-dynamic-2d-shadows/
But I have questions to HLSL. The way that I ...
0
votes
1answer
433 views
Help understand GLSL directional light on iOS (left handed coord system)
I now have changed from GLKBaseEffect to a own shader implementation. I have a shader management, which compiles and applies a shader to the right time and does some shader setup like lights. Please ...
