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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0
votes
1answer
137 views

What is wrong with my specular phong shading

I'm sorry if this should be placed on stackoverflow instead however seeing as this is graphics related I was hoping you guys could help me: I'm attempting to write a phong shader and currently working ...
2
votes
1answer
216 views

draw fog of war using shaders

I am making a RTS game, and I'd like some advice on how to best render fog of wars, given what I'm already doing. You can imagine this game as being a classic RTS like Age of Empires 2, where the fog ...
1
vote
1answer
66 views

RenderState in XNA 4

I was going through this tutorial for having transparency which can be used to solve my problem here. The code is written in XNA 3 but I'm using XNA 4. What is the alternative for the following code ...
13
votes
4answers
668 views

How to implement soft edge areas with particles

My game is created using Phaser, but the question itself is engine-agnostic. In my game I have several environments, essentially polygonal areas that player characters can move into and be affected ...
2
votes
4answers
331 views

OpenGL setup on Windows

I have been trying to use OpenGL for two days now. First on Mac, then on Windows. The problem with Mac is that it doesn't support the newer versions of OpenGL. I ran a tutorial that actually did get ...
0
votes
1answer
89 views

OpenGL ES 1 Pixel Error?

I am developing a game on android using OpenGL ES 1.0 for Android OS. It is a 2d game using a simple Orthographic projection and textures for the sprites. One of these textures has a small line (it ...
7
votes
2answers
1k 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 ...
1
vote
1answer
100 views

Draw a rotated rectfill in Allegro 4.2?

I'd like to use Matricies to transform primitive geometric shapes and draw them using the Allegro library using version 4.2 (I can not switch to 5.x just yet). This works fine for non-filled objects ...
5
votes
3answers
332 views

What is Windows' software rendering API?

We usually use OpenGL or DirectX to work with the GPU. If I want to use the CPU to render 2D/3D graphics, how does it work and what API can I use for it on Windows? I know there is no benefit in ...
0
votes
1answer
129 views

TiledMap resizing and aspect ratio with LibGDX

I'm making a game and I don't know how to resize my TiledMap when the window is bigger but keeping its squared shape. Here is a screen: When I change window size, here's what happens: I want ...
0
votes
1answer
114 views

WebGL wrong scaling of rectangle

I'm working with this tutorial http://www.html5rocks.com/en/tutorials/webgl/webgl_transforms/ and my result is, that the rectangle moves in the direction of it's scaling values, and also scales at ...
0
votes
1answer
93 views

How can I center an arbitrary string over a sprite?

Eyesore: The problem is, the text should be exactly centered over the player, I want something like this: My code to draw username above the player is: g.drawString(username,(int) playerX,(int) ...
1
vote
2answers
133 views

How do I scale a rectangle image while retaining its border thickness?

I want to create a programmatically scalable image like this: scales to . Both have a one pixel border. If I scaled from the first to the second in Paint.NET, there would be a two pixel horizontal ...
0
votes
1answer
111 views

Scaling sprites in a spritesheet without changing the overall size of each image

It might be more of a graphics software question - but, well, it concerns game development. I'm using some free spritesheets found in the web, and basically one of the characters seems slightly ...
3
votes
3answers
695 views

Why haven't graphics cards been designed for voxel rendering?

I stumbled across the following article on Wikipedia regarding voxels that says: One such problem cited by Carmack is the lack of graphics cards designed specifically for such rendering requiring ...
2
votes
4answers
647 views

Why is anti-aliasing so slow?

I have always asked myself this, especially about x4 or x8 anti-aliasing. It seems that over the years, the algorithm has remained the same but needs more power than before due to improved game ...
32
votes
7answers
8k views

Why do games ask for screen resolution instead of automatically fitting the window size?

It seems to me that it would be more logical, reusable and user-friendly to implement flexible, responsive UI layout over a 3d or 2d screen, which can then be run on any screen resolution. Some ...
0
votes
0answers
49 views

Keeping relative size with different resolution

I'm making a GUI system and want the components having a konstant relative size, even if I'm changing the resolution. Since I'm using the relative OpenGL coordinates to place them, there is no ...
0
votes
0answers
19 views

how to construct an efficient game loop and add graphics to it [duplicate]

I am reading killer game programming in java and reffering to foriegnguymike on youtube. I think my game loop is ok but someone said not to use thread.sleep() and i'll work on it. For now based on ...
7
votes
2answers
941 views

What kind of projection is demonstrated in this screenshot?

I want to know what projection is used in the following game: The game is Goodgame Empire.
1
vote
3answers
212 views

What makes a game a 3D game?

This may sound pretty obvious to game devs here but I'm wondering if a game can be called 3D if it has 3D assets but static isometric like camera view and not rotating at all. I tried searching the ...
0
votes
1answer
232 views

How to add a nice looking muzzle flash to the tip of my guns [closed]

I am making a top down shooter and would like to add a muzzle flash to the tips of my guns. So I have an idea of what I want to do which would be just a circle that would fade from yellow to white or ...
5
votes
2answers
301 views

Do I really need to clear the renderer every iteration?

Just a quick question about fine-tuning/optimization. If I'm making a 2D platformer with a parallax-scrolling background (meaning no two frames are the same) do I really need to clear my renderer for ...
0
votes
2answers
229 views

Do Java and Actionscript use OpenGL?

As far as I know there are only 3 base graphics libraries on Windows, the GDI, OpenGL and DirectX, is that correct, so that means that Java, Actionscript and all language use one of these 3 libraries ...
2
votes
1answer
486 views

How do I get hardware accelerated graphics and shaders in PyGame?

I have created several simple games with PyGame, but until now, I have focused on mechanics rather than graphics. The graphics in my games have been extremely rudimentary, consisting of basic shapes ...
1
vote
2answers
260 views

Creating weapons/armor procedurally

In my current project I am creating a 2d game (rpg) which should be able to dynamically create new weapons and armor based on different components. So, i.e. a sample weapon would consist of barrel1, ...
0
votes
2answers
77 views

Clamping large content to smaller area

I'm using OpenGL (with LWJGL) in Java, but the question is language independent. I have some region (a rectangle for simplicity), and, let's say, a big tiled map which I want to show in this area. ...
1
vote
1answer
592 views

glsl shader to allow color change of skydome ogre3d

I'm still very new to all this but learning a lot. I'm putting together an application using Ogre3d as the rendering engine. So far I've got it running, with a simple scene, a day/night cycle system ...
0
votes
1answer
43 views

How to use mocaps in your game if they don't loop smoothly?

Following suggestions on IRC, I've downloaded, parsed and incorporated the Free Release of 2500 mocaps to my game. I've noticed, though, that none of those loop perfectly. It does not connect and thus ...
1
vote
1answer
149 views

DirectX Bullet Tracer Effect

I'm wondering if anyone knows some common and efficient ways to do a fast tracer for an instant bullet. I've seen people speak on forums of using primitive lines with DirectX, but I doubt this ...
0
votes
0answers
149 views

Do SpriteBuilder's Smart Sprite Sheet need to be loaded to memory?

When I create an Smart Sprite Sheet Folder using SpriteBuilder and publish it, must I load that SpriteSheet into memory "FrameCache" with code or does SpriteBuilder do this automatically (so I just ...
3
votes
1answer
260 views

How can I use a Texture2D larger than 2048 x 2048?

I'm having issues working with a large image. I've read other threads on using images larger than a Texture2D supports, but found nothing that addresses my problem specifically with implementation ...
0
votes
1answer
127 views

When entities don't draw themselves, who actually does?

There are countless questions here about whether entities should draw themselves or not. The answer is almost universally no, there should be a renderer. And I do see a point in having a single place ...
3
votes
2answers
272 views

Is there any reason why there isn't a cross-platform implementation of DirectX?

Similar to how Mono can compile C# to various platforms, why isn't there an API that conforms to DirectX's specifications but can produce binaries for all platforms? I understand that there is OpenGL ...
0
votes
1answer
176 views

Bounding Box in Monogame for mouse picking - Ray perspective

My mouse ray is screwing up precision. I don't really know how to fix it, maybe you guys can help. problem : (5.6mg gif) https://www.dropbox.com/s/v0z67afso88hsd1/perspective_ray.gif how i create ...
2
votes
2answers
2k views

How can I play an RTSP video stream in Unity3D?

I want to play an RTSP video stream on a Texture2D. The stream is coming from an IP camera and is encoded with H.264, MJPEG or MPEG4. I know about VLC's libraries, ffmpeg, direct show, media ...
0
votes
0answers
180 views

Calculate parameters for orthographic matrix for directional shadow mapping

I am struggling with how I can fit my scene in an orthographic projection, based on what is visible by the camera. All tutorials so far explain almost everything in perfect detail, and then for the ...
0
votes
0answers
156 views

Shadow Mapping: How to calculate Axis Aligned Bounding Box?

I am trying to implement Shadow Mapping, which is actually working with an AABB that always covers my entire scene, but (obviously) it gives very blocky graphics. So I figured I need to calculate a ...
0
votes
1answer
65 views

How can I load a picture with alpha channel in JME?

This code loads a picture into the game: Picture mypic= new Picture("mypic"); Texture2D tex = (Texture2D) assetManager.loadTexture("Textures/mypic.png"); ...
4
votes
2answers
2k views

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 ...
2
votes
1answer
382 views

Surface shader with VertexLit causes black object

I wrote the simplest possible surface shader: Shader "SimpleSurf" { Properties { _MainTex ("Base (RGB)", 2D) = "white" {} } SubShader { Tags {"RenderType"="Opaque" } ...
0
votes
1answer
215 views

What image format supports transparency in Android?

I want to show an apple on screen but the image has a white background and it doesn't blend with the background of a tree. Is there any image format in which only the red apple is displayed?
-1
votes
1answer
64 views

How do I detect how much of an object has been “cleaned” by the player?

I want to let the player wipe some dust off of a book, then start a short animation. Here's what it looks like: I'm using a clipping region on the "dusty" book bitmap image to progressively hide ...
1
vote
1answer
51 views

Vertexquads are not being drawn in 2D space

I started teaching myself DirectX a short time ago and have come across a problem which I can't figure out by myself unfortunately. I'm trying to build my own font system, so I can draw strings in 2D ...
3
votes
2answers
512 views

What is the difference between “offline” and “real time” rendering?

I have a rough idea: real-time is approximated with little or no global illumination. But how would you otherwise explain why offline rending takes so much longer? You hear things like "number of ...
0
votes
0answers
63 views

“Blinking” graphical bug when rotating shadow matrix

So, we have implemented Krypton shadows into our code for our 2D game, and it's working beautifully. Only issue is that we're running into a bizarre graphical bug when rotating the shadows with the ...
0
votes
1answer
53 views

Proper Order to Process Each Frame

I'm writing a rudimentary 2D engine and am wondering what the proper or generally accepted order is for handling graphics, user input, sounds, and then other systems like physics. If you have written ...
3
votes
1answer
197 views

How are Volumetric Effects made within games? (e.g. Smoke/Fire)

For computer generated volumetric elements such as clouds, fire, and whitewater. How are they made? Is it just a simple collection of particles [put to pixels] taken from Physics equations or are the ...
1
vote
2answers
220 views

XNA blurring moving images

Why does XNA blurs the images which moves less than 1px in between two draws? It is quite annoying, because everything looks really blurry. Is there a way to disable it? I have tried to set the ...
0
votes
1answer
228 views

Creating a gradient for a texture - Why is the color becoming dark on one side?

Updated While debugging I looked at the lerp and it was calculating into a negative number at the start. So I added in checks for to low or high a value, and that seems to have fixed it. I'll answer ...