A very generic term referring to visual part of a game. Try to avoid unrelevant usage and instead tag for specific graphics type (2D, 3D), API, framework or a library you are using, if possible.

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Is there a game oriented graphics or image editor?

I remember looking a few times over the years for an alternative to Photoshop for editing images. I've tried using Gimp too, and that's also not quite sufficient. There are some problems that have ...
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5answers
2k views

Drawing very large slowly rotating planets

I'd like to draw very large (~500 px) graphics of planets slowly rotating. These graphics are meant to impress. What's the best way of doing this? I don't have experience with any particular 3D ...
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3answers
1k views

Generate levels in real-time with the Procedural CityEngine

Has anyone used the Procedural CityEngine to generate levels in real-time? It seems to get used in production or pre-production due to its sizable overhead, but has anyone tweaked it to run in ...
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votes
5answers
2k views

Is there a way to blur objects in a 2d game with OpenGL without using shaders?

Is there a nice way in OpenGL to blur objects without using shaders? Currently, I'm accomplishing blur by rendering the object slightly up, down, left, right, and the four diagonals from its original ...
7
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2answers
956 views

How do I generate surface normals?

I have quite a few debug drawing methods in my engine that can generate geometry useful for debugging, like spheres and cubes. At the moment I do not generate any normals for these shapes. Is there ...
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2answers
3k views

Java single Array best choice for accessing pixels for manipulation?

I am just watching this tutorial https://www.youtube.com/watch?v=HwUnMy_pR6A and the guy (who seems to be pretty competent) is using a single array to store and access the pixels of his to-be-rendered ...
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votes
3answers
5k views

How are non-repetitive pixel backgrounds created in 2D games? (e.g., Superbrothers: Sword & Sworcery EP)

What methods are used to create complex, rich, non-repetitive 2D pixel backgrounds in games like Superbrothers: Sword & Sworcery EP? Examining screenshots from the game, I really can't detect ...
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4answers
2k views

Is there a sprite sheet creator that satisfies these requirements? [closed]

I'm looking for a decent sprite sheet packer. Features: Command line interface for Linux. Effective packing algorithm. Configurable padding between sprites in the sheet. Configurable fixed sprite ...
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votes
2answers
660 views

OpenGL or OpenGL ES

What should I learn? OpenGL 4.1 or OpenGL ES 2.0? I will be developing desktop applications using Qt but I may start developing mobile applications in a few months, too. I don't know anything about ...
7
votes
1answer
173 views

What is a lobe, in reference to lighting and graphics

I sometimes see references to lobes when talking about lighting, especially with specular lighting, but also with spherical harmonics which doesn't do specular. Can anyone explain what exactly a lobe ...
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5answers
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How can I create animated card graphics like in Hearthstone?

In the game Hearthstone, there are cards with animated images on them. A few examples: http://www.hearthhead.com/card=281/argent-commander http://www.hearthhead.com/card=469/blood-imp The ...
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votes
3answers
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How do I fix this weird lighting problem?

I'm making a small game in Unity, and some models are displaying very ugly shading. The shading usually looks funky along the edges between triangles. I'm pretty new to working in 3D; I bet this is ...
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3answers
867 views

For a 2D game on the iphone would I better using OpenGL or CoreGraphics?

I am planning on developing my first iPhone game, and I was wanting to know whether I should use OpenGL or CoreGraphics for a 2D game. An outline of the benefits would also be helpful. Edit: Set ...
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1answer
2k views

How do I create a 2.5d parallax effect?

I have a decent background in 3D graphics and programming, but I'm new to game development. I'm currently exploring different possibilities and I really want to make an RPG game. I was thinking about ...
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3answers
3k views

Questions about rendering access in UDK

I also asked about this over on the UDK forums, but haven't had much luck getting any responses. Basically, I have some experience with UT3 modding, but I'm just getting started with the UDK, and I ...
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2answers
330 views

Reducing Spherical Harmonic Ringing

I've generated some 2nd order SH light-probes from cube-maps in my scene and I was surprised how strong artifacts are around the back of the dominant lights. I switched to a Lambert source plus ...
7
votes
2answers
503 views

How many rendering passes is “normal”?

I've been implementing John Chapman's method for SSAO (an excellent tutorial by the way), and I've completed it all minus the final part: blurring it. I believe this is what the entire process should ...
7
votes
1answer
110 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 ...
7
votes
2answers
2k views

Getting the number of fragments which passed the depth test

In "modern" environments, the "NV Occlusion Query" extension provides a method to get the number of fragments which passed the depth test. However, on the iPad / iPhone using OpenGL ES, the extension ...
6
votes
3answers
2k views

What features does D3D have that OpenGL does not (and vice versa)?

Are there any feature comparisons on Direct3D 11 and the newest OpenGL versions? Well, simply put, Direct3D 11 introduced three main features (taken from Wikipedia): Tessellation Multithreaded ...
6
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2answers
763 views

What is this Super Mario shading technique (the edge glow) called?

What is this Super Mario shading technique (the edge glow) called? It can best be seen at the legs.
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3answers
7k views

Is there a good cross-platform C++ vector graphics library out there? [closed]

I'm making a game and want to use vector graphics. I started re-coding it using Cairo and the performance is horrific. So, I'm looking for a different library. It needs to be for C++ and ...
6
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3answers
483 views

Why does clipping take place after illumination?

Can you explain why clipping takes place after the illumination process in the rendering pipeline? Would it be not cheaper to clip first and do then the illumination?
6
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2answers
598 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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3answers
1k views

Understanding how to create/use textures for games when limited by power of two sizes

I have some questions about the creating graphics for a game. As an example. I want to create a motorbike. (1pixel = 1centimeter) So my motorbike will have 200 width and 150 height. (200x150) But the ...
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votes
4answers
943 views

Sharing data between graphics and physics engine in the game?

I'm writing the game engine that consists of few modules. Two of them are the graphics engine and the physics engine. I wonder if it's a good solution to share data between them? Two ways (sharing ...
6
votes
1answer
606 views

Changing water color based on depth

I'm looking to make a water shader that colors the water based on its depth. Up until now my water shader that I've used has basically been extremely reflective and only looked somewhat blue because ...
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2answers
569 views

Help my graphists sharing their work

As a developer I'm used to Subversion for source control and I think it's great for sharing source code between developers. Now thinking about my graphists and game designers, they need to have a ...
6
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3answers
389 views

How can I modify how my scene is drawn to make it look like it's taking place at different times of day?

My game has a day-time association with the scene, that the morning light will be different from the afternoon and the night. But I don't know how to make this difference. Here is an example in ...
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votes
4answers
2k views

The recommended road map to be a good graphics/game engine programmer [closed]

I am a computer science student and I am developing with C/C++ and Python and I want to begin learning graphics tools to start developing with game engines, especially the Blender Game Engine. So what ...
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4answers
3k views

Which Side Was Hit?

I am working on an Android game and I have two objects A and B (both rectangles) and when they collide I simply want to know which side of B was hit. I have detected the collision fine, but I am ...
6
votes
4answers
213 views

What to look for when searching an artist for doing graphics?

I was wondering which skills I should ask for when I need someone to make the graphical part for a 2D game intended for iOS or Android. Not really looking for someone right now, but working on a ...
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3answers
4k 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), ...
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votes
2answers
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How to implement SSAO in Shader Model 3/ DX9?

Ive read a few articles about SSAO, and i would like to implement it in to 3d engine at work, which runs on top of DX9. Can you give me an tips on getting the simplest implementation possible up and ...
6
votes
1answer
789 views

Precomputing Visibility

Having noticed that UDK (Unreal) and Unity 3 include similar pre-computed visibility solutions that unlike Quake are not dependent on level geometry, I've been trying to figure out how the calculation ...
6
votes
4answers
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top down game - checking, drawing enemy's line of sight area with obstacles

Examples of what i'm going to need: I'm using cocos2d to draw a CCTMXTiledMap, on those tiles i'll have to draw the LOS cone. How would i test if the player is within that cone, taking obstacles ...
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1answer
2k views

How do engines like Unreal relate to OpenGL or D3D?

Well I'm completely completely new to computer graphics and even more to game development. I am searching info and all that stuff to have the basics quickly. But there's a big question mark in my ...
6
votes
1answer
554 views

2D Polygon Triangulation

I am creating a game engine using the JBox2D physics engine. It only allows you to create polygon fixtures up to 8 vertices, To create a body with more than 8 vertices, you need to create multiple ...
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3answers
3k views

Random generation of realistic human faces

What would be a practicable way of generating huge numbers of realistically looking human faces? Randomizing 3D-models and rendering them would require a lot of computing power, especially as I'm ...
6
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1answer
1k views

Difference between the terms Material & Effect

I'm making an effect system right now (I think, because it may be a material system... or both!). The effects system follows the common (e.g. COLLADA, DirectX) effect framework abstraction of Effects ...
6
votes
1answer
805 views

How to flip a BC6/BC7 texture?

I have some code to load DDS image files into OpenGL textures, and I'd like to extend it to support the BC6 and BC7 compressed formats introduced in D3D11. Since DirectX and OpenGL disagree about ...
6
votes
2answers
629 views

What is a good alternative to Unified Shader for Shadows?

Most shadow systems I have seen use a unified shader system for shadowing techniques, resulting in an uber shader for the projects. What alternatives do you find work well or is the unified shader ...
6
votes
2answers
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Looking for an example of glass with XNA or DirectX 9

Any good pointers on how to get the refractive look of glass? I'm looking to create a think piece of glass type of look, sort of the type that you'd have on bathroom shower doors.
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votes
2answers
726 views

How do I load chunks of data from an assest manager during a loading screen?

I'm developing an Android game. Basically I want to pre-load all graphics/sounds when the app is first loaded. But I also would like to show a progress bar as this is happening. Here is a snippet ...
6
votes
2answers
623 views

Isometric graphics with fake perspective

Diablo 2 is a game with isometric graphics. However, unlike other isometric games, D2 has the option to activate perspective. Obviously, the D2 developers found a clever trick to convincingly fake ...
6
votes
2answers
119 views

How to have real time (blood) traces?

https://www.youtube.com/watch?v=Tzf3zjPJYw4 In this game, Ink, color blobs fall then they create pretty color spots. The color traces are unlike any other game. For an example, in Super Meat Boy ...
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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 ...
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3answers
6k views

Should I use Game Engines to learn to make 3D games? [closed]

HI i am a software engineering student in his second-last year. I am proficient with C,C++,C# and java programming languages, and being a student of engineering I have studied calculus, vectors etc ...
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4answers
856 views

How to make game appear to run faster?

I believe I read somewhere that there is a technique which will make games appear more smooth than they are. I believe it is some visual trick, but I don't remember which one. (It is be something like ...
5
votes
2answers
5k views

How to create life-like sprites from photo or video capture like was done for games like Mortal Kombat 1?

I know they digitized actors but how can I get those same results? How to take a photo or video of someone and digitize it for a 2D game? Digitized sprites were used in several video games through the ...