Tagged Questions

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
76 views

Displaying normals of a geometry

I have a rectangle which is created by 2 triangles and it is in x-z plane, and i have object on it. Now, the normals of two triangles (face normals) are y axis i.e. (0,1,0). I want to display normals ...
0
votes
1answer
1k views

rotating 3D object around the center

I have object moving from A to B on x-axis and there is no translation of object apart from it. Now, while moving, i want to rotate it around y-axis and the motion should change accordingly, i mean if ...
6
votes
1answer
322 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 ...
2
votes
1answer
151 views

What is the purpose for multiple windows in games?

A lot of game development APIs recently got support for multiple windows (such as SDL 2, and GLFW 3). But why did they add that feature? I've never seen a game in my life use multiple windows (with ...
-1
votes
1answer
115 views

Render white background with Graphics in Canvas

I am developing a game that I would like the background to be white, and it just sticks to being black. Here is my render method: private BufferedImage image = new BufferedImage(WIDTH, HEIGHT, ...
0
votes
1answer
150 views

Emulated vector scaling with raster graphics?

this is a fairly loaded question. I'm looking to develop a Tech Design Document with my programming team and we're now on the fence about a major 2D graphical engine decision. What we would like to ...
0
votes
0answers
30 views

Is there a transformation or set of transformations that can approximate a “radial scale”?

Is there a way to, with matrices, scale something as if someone were opening a Japanese fan? I'm at a loss of what to call it, so pointers towards avenues of research would be greatly appreciated. If ...
4
votes
1answer
965 views

GGX specular BRDF is way over 1!

Now, the classic Torrance derivation for roughened surfaces which Cook took into vectorized form yields the familiar parametrization of a specular BRDF where we have the NDF which decides how much ...
2
votes
2answers
184 views

what is order of implementation of matrix transforms?

What is the meaning of Tr*Sh*Ro*Sc =M ? How is matrix M written to form the graphic transformation : 1st Sc=Scale, 2nd: R=Rotate, 3rd : Sh=Shear 4th: T=Translate ? Is the matrix M above written ...
3
votes
2answers
174 views

How do I draw these tiles without them overlapping?

I want to make a map that is tiled, and I want to start the map with all grass. I use this tile: When I display this tile and place another next to it I get the following result: How do I get ...
0
votes
1answer
127 views

Dynamic Shapes and dynamic animations

I saw this video: Video And now I am curious about the following: How can you achieve dynamic forms like they are shown in this video. What I mean is: Do you need to have some "base" models which can ...
4
votes
2answers
372 views

How would I display a unit that is hidden behind another object

Right, I've tried searching for this but as you might be able to tell from the title, I didn't really know how to word it anyway... In some games such as rts games, when a unit is hidden or half ...
0
votes
0answers
555 views

XNA 4.0 - stretch full screen window?

I have an issue with resolution in XNA 4.0. I'm running fullscreen. The game runs standard at 1920x1080, and can be scaled down to 1280x720. The resolutions are both 16:9 (1920/1,5 = 1280, 1080/1,5 ...
0
votes
1answer
182 views

Performance of XNA 4,0 static vertex buffer / VertexPositionNormalTexture in F#

Good afternoon, I have been toying with the VertexBuffer in XNA just to see what it is capable of. I have done some very minor 3D work in the past, so the concepts are not completely foreign to me; ...
3
votes
1answer
234 views

Auto-tiling with Yoshi's Island style tiles

I'm creating a 2D platformer and I'd like to implement an auto-tiling system. Normally, this wouldn't be particularly difficult. However, I'd like to have tiles like in Yoshi's Island, where the ...
1
vote
1answer
557 views

What is the logic behind a 3D Projection 'Camera Perspective'? [closed]

Suppose I had a 3D Cube on a 2D plane (screen). And I wanted to use the keypad to move and rotate it. Without referring to a 3D Game Engine that could do this for me can you explain me the logic or ...
2
votes
1answer
129 views

Cascaded Shadow Maps: clipping against scene bounds

I just implemented an initial version of CSMs based on the MSDN articles Common Techniques to Improve Shadow Depth Maps and Cascaded Shadow Maps. I fit the shadow projection to the view frustum, and ...
1
vote
1answer
106 views

How to render models using a personalized projection matrix?

I'm creating a game with a great sprite demand. Out team is considering automatizing the sprite generation using 3D models. The problem is we have a very particular ortographic projection: We have ...
28
votes
5answers
1k views

24-Bit Colordepth not enough?

I noticed that in very soft gradients, the 24-Bit colordepth is not enough as you can see the transitions of the color. This pops out the most in dark scenes or night skies. Why doesn't anybody ...
2
votes
2answers
2k views

How to code a Game Grid in Java?

Suppose I wanted to code a game grid in java. Not an abstract text one but an actual grid with graphics and 'cells'. Would I have to draw line by line or is there a more efficient way? Also how would ...
12
votes
3answers
780 views

Recreating this flat-shaded look

I'll keep it short. How does one achieve the effect depicted in the image below? Is it feasible to do in realtime? It looks deceptively simple, but it probably isn't. Are there any keywords I can ...
-4
votes
1answer
193 views

How good can the graphics get on a game made only with Python? [closed]

Aside from the game being fun, which is the most important, is it possible to make a "good looking" game with it? The graphics I mean. Like Angry Birds. Could that be made in python, looking like ...
3
votes
1answer
88 views

Symmetry preserving path simplification

I'm using the Douglas peucker (DP) algorithm to simplify some (2d) closed paths forming a shape. This works pretty good, but not so much for closed paths that have some symmetry. Take for example a ...
3
votes
1answer
295 views

Automatic shadow for isometric objects

I have like hunderd of isometric objects. One example: I'm trying to find a way to automate creation of shadow they're casting. I ended up with following transformation: matrix.Shear(-0.25f, ...
1
vote
3answers
152 views

What's the difference between using hardware-accelerated APIs and the OS's drawing API?

On Windows, I can do drawing with the OS API without OpenGL or D3D. The code I am writing will make calls to a device driver and tell the GPU what to do regardless, right? How is using OpenGL ...
-1
votes
1answer
107 views

Definition of graphics needed [duplicate]

It is not isometric, neither is it pure 2D. What is this graphics view called?
2
votes
1answer
283 views

Which camera angle is used for these sprites?

I am trying to replicate these sprites: But I am not managing to make sense of how it is done. The character is facing forward ( <--- ), but you can see the front of its body instead of just ...
-1
votes
1answer
2k views

How to create a text-based game? [closed]

I would like to create a text-based game. As simple as that. I have some understanding of the coding that needs to go into it as I do know a fair amount of JavaScript and I can do it in the ...
2
votes
2answers
347 views

How can I determine an appropriate frame count for various fighting game animations?

I am currently starting to outline a fighting game I'm doing with a friend. The biggest obstacle for me now is determining frames for every move. How can I determine how many frames should a quick ...
5
votes
2answers
502 views

XNA 3.1 to 4.0 Vertex Shader Not Drawing

I have recently been converting our XNA 3.1 game to XNA 4.0 and am stuck on the shaders. I have the game running, but nothing is drawing to the screen, except things not using a shader. This is only ...
1
vote
1answer
257 views

Slick2D : translate -> scale -> translate doesn't return to the old position

I am trying to implement zoom using Slick2D library. As I understand, to zoom something on non (0,0) coordinates, we need: translate so the target point is in (0,0) apply scale factor translate the ...
2
votes
1answer
417 views

Do I have to keep textures in Android games smaller than 1024^2?

I have read tips in books and article that point out, if you are making a game for Android, make sure your textures are =< 1024^2, or you'll not reach all your potential customers. I have never ...
1
vote
1answer
83 views

Which Graphics/Geometry abstraction to choose?

I've been thinking about the design for a browser app on the HTML5 canvas that simulates a 2D robot zooming around, sensing the world around it. I decided to do this from scratch just for fun. I need ...
6
votes
3answers
381 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?
1
vote
2answers
342 views

Creating a 2D perspective in 3D game

I'm new to XNA and 3D game development in general. I'm creating a puzzle game kind of similar to tetris, built with blocks. I decided to build the game in 3D since I can do some cool animations and ...
3
votes
0answers
176 views

ways to program glitch style effects [closed]

Most tutorials for generating glitch art usually has to do with some form of manipulation of the compression of files. Should my goal instead to replicate the look of these glitches in shaders or is ...
2
votes
0answers
312 views

OpenGL: Attempt to allocate a texture too big for the current hardware [closed]

I'm getting the following error: java.io.IOException: Attempt to allocate a texture to big for the current hardware at ...
1
vote
2answers
139 views

How to make image bigger than the screen to be slideable in the screen in monogame for windows phone 8?

(Idk if my title is correct, because when I google it, there is no related result I guess) I am not sure how to explain it correctly, but I am making a plain 2D, tile based, tactic game in windows ...
2
votes
0answers
265 views

Quaternion to direction vector - flipping

I've kinda solved this myself by adapting the Camera::setDirection code from OGRE to work for my need: Now I have the following code: Vector3 boneDir = getBoneWorldOrientation(mEntity, mHips) * ...
0
votes
2answers
215 views

HLSL Pixel Shader Compile, Flow Control, Instruction Count, XNA Issue

im trying to find help with an issue im having moving from the XNA 3.1 framework to XNA 4.0. The shaders I wrote for my 2D game work fine in XNA 3.1, but wont even compile in 4.0. At first I got ...
1
vote
1answer
457 views

How to create a similar 2.5D art style character

EDIT: I am asking about the characters not the 2.5 scene I am the graphic designer of a game and I want to recreate the look and feel of these images: My questions are: Does this style have a ...
1
vote
1answer
180 views

How can I find the location of OpenGL object after rotation?

I have a rotating object, a cube, which I rotate in OpenGL as follows: gl.glPushMatrix(); gl.glTranslatef(400.0f, 300.0f, 1300.0f); gl.glRotatef(m_x, 4.0f, 0.0f, 0.0f); gl.glRotatef(m_y, 0.0f, 4.0f, ...
6
votes
2answers
597 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.
4
votes
1answer
356 views

How to optimize SpriteBatch usage?

From what I understand, SpriteBatch's purpose is to batch as many draw operations to send to the GPU. Each batch can handle one texture at a time, and changing SpriteBatch context/texture is ...
0
votes
1answer
131 views

How to handle zooming? (Collision detection and speed are off)

I'm working on a bird's eye view 2D game. I want to zoom in/out based on the entity's speed (similar to GTA 1/2), but I'm struggling with the zooming. To zoom, I simply scale all the entities by the ...
-5
votes
1answer
197 views

Starting off C++ games development? [closed]

I've just finished my 2nd year of college, and now that I have time on my hands I want to start working on a 3D game, though my stumbling point is trying to find the resources to learn C++ games ...
2
votes
0answers
303 views

Good Book or Resource for 2D Game Art [closed]

I have a very clear idea for my first Game . I have immense Experience in Coding Games in LibGDX but i am very poor at game art . So far I've been hating all the characters I've drawn . Are there any ...
2
votes
0answers
117 views

Images out of “sync” [closed]

I've been creating a game in Java as a bit of a fun side project over the last few months and I've come across a really peculiar problem, take a look at this image: The game is made up of various ...
-4
votes
1answer
300 views

Recommended graphic software for creating great graphics in game? [closed]

I came across a game called Trine2. It has a great graphics here is one image i captured here. Forgive me but I need 10 reputation to upload image so i use external sites. How did they create that ...
4
votes
1answer
481 views

How do games deal with Z-sorting partially transparent foliage textures?

I was busy implementing basic transparency in a prototype I'm working on when something occurred to me. In order for a given texture's transparency to work as expected, the (semi-)transparent texture ...