Programming related to the visual representation of information on computer screens.

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15
votes
4answers
2k views

Effects for Programmers [closed]

Does anyone have any good resources for creating special effects, aimed at programmers. I'm not specifically interested in particle effects, but broader things like: Fullscreen effects, blur, depth ...
3
votes
2answers
490 views

When constructing an orientation matrix, are the rows of the matrix the axis?

When constructing an orientation matrix, are the rows of the matrix the axis? The matrix is row-major and I'm multiplying vectors on the right (Mv). So, the matrix looks like r0c0 r0c1 r0c2 r1c0 ...
3
votes
2answers
304 views

How do you transform a vector to use another objects orientation?

I want to take a vector that is using world coordinates and position it using the orientation of an object. So, if the direction of the object is the z-axis, and the vector is (0,0,1), then the ...
13
votes
1answer
757 views

Is there any performance benefit to sharing shaders between programs?

OpenGL allows you to share the same shader between multiple programs. Aside from saving small amounts of memory and a shader handle, are there any GPU-side performance benefits to doing this?
6
votes
6answers
685 views

Are there important cases when one needs to know how to program sort algorithms in game programming?

Well I already read a little about sorting algorithms on wikipedia, the subject seems vast, especially when dealing with some cases where some algos are faster than others. That might need some quick ...
3
votes
3answers
872 views

What do you need to know in C++ before starting to program with DirectX

I was wondering what do you need to know in C++ before starting to program with DirectX? I have only been programming in C++ (more for 2D games using SDL and learning the basics) for just over a ...
2
votes
1answer
411 views

ATI driver bug and rendering to a texture 2d array in OpenGL

I am trying to render to a texture2Darray in OpenGL, with a similar setup as descriped in this post. My question is, if anyone has gotten this to work on ATI hardware? Or is there still a bug in the ...
3
votes
4answers
2k views

What's wrong with this OpenGL model picking code?

I am making simple model viewer using OpenGL. When I want to pick an object OpenGL returns nothing or an object that is in another place. This is my code: GLuint buff[1024] = {0}; GLint ...
-5
votes
2answers
1k views

How to Make A Fast Graphics Engine? [closed]

Assuming I were to develop a graphics engine for a modern PC game that used only DirectX or OpenGL, which techniques could I use to make sure it ran quickly? Edit: I'm looking for any approaches ...
14
votes
2answers
17k views

OpenGL ES 2.0: Setting up 2D Projection

This article describes in general, how to draw sharp OpenGL 2D graphics, using fixed function pipeline. http://basic4gl.wikispaces.com/2D+Drawing+in+OpenGL Because OpenGL ES 2.0 has some ES 1.x ...
14
votes
1answer
4k views

How do I render a mirror or other reflective surfaces?

I just wondered how to create a mirror within a 3D game? My suggestion is/was to trace rays, hitting the "mirror" object then drawing a picture of a second cam onto the "mirror" object which is ...
6
votes
2answers
564 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 ...
6
votes
3answers
3k views

How to do this sprite motion blur?

Some of you may know fraxy... Basically, I was watching this video: http://www.youtube.com/watch?v=uL7zWdDCtOE And there are some times where some sprites spin really fast (4:00 mark for example), ...
15
votes
3answers
603 views

Solids as high viscocity Liquids

A friend of mine and I were discussing different idea for allow materials in a world to be destroyed in a very piecemeal fashion and he proposed the idea of representing solids as very viscious ...
2
votes
2answers
486 views

Help making a visual transition with pygame and NumPy

Perhaps this could be better answered on Stack Overflow, but I thought it would be worth posting here. Right now I'm trying to make visual transitions with pygame's surfarray module which uses NumPy. ...
11
votes
6answers
7k views

LOD in modern games [closed]

I'm currently working on my master's thesis about LOD and mesh simplification, and I've been reading many academic papers and articles about the subject. However, I can't find enough information about ...
3
votes
4answers
806 views

How do you make use of all texture units on today's graphics cards?

I saw a review of the GeForce GTX 460 graphics card. It has 56 texture units. I'm not that knowledgeable about graphics effects. But, the ones I know use around 3 or 4 texture units. In this ...
8
votes
3answers
1k views

What's a good data structure solution for a scene manager in XNA?

I'm playing with XNA for a game project of myself, I had previous exposure to OpenGL and worked a bit with Ogre, so I'm trying to get the same concepts working on XNA. Specifically I'm trying to add ...
17
votes
4answers
1k views

What should every graphics programmer write [closed]

I've seen this question on SO, but here i want it to focus on GFX. So in your opinion what applications/features should every aspiring GFX programmer write/change to get better? Community wiki since ...
14
votes
5answers
4k views

boolean operations on meshes

given a set of vertices and triangles for each mesh. Does anyone know of an algorithm, or a place to start looking( I tried google first but haven't found a good place to get started) to perform ...
5
votes
6answers
2k views

Algorithm for drawing asteroids from, er… Asteroids game?

What would the algorithm be for generating/drawing the asteroid shapes from the original Asteroids game? Is it even an algorithm? Or would they be hard coded shapes? Here is a screenshot to jog your ...
11
votes
7answers
3k views

Fastest way to create a simple particle effect

I am looking to the fastest way to create really simple particle effect that will be spammed like hell on the game... Basically, my game looks like a vectrex game, made mostly of lines... I want to ...