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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1answer
93 views

How to calculate texture coordinates for a cube?

I was reading about texture mapping on 3D shapes in javafx where I came across this code, static TriangleMesh createMesh(float w, float h, float d) { if (w * h * d == 0) { return null; } float hw = w ...
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0answers
34 views

Matrix stack from direction vector chain

I've implemented an IK system for a grabber arm based on several straight segments, starting from a fixed point. The IK is based on a mass-spring simulation, which eventually rests. What I'm left with ...
3
votes
0answers
71 views

Unusual black squares in transparency effect after wake from sleep

I've encountered unusual black squares in semi transparent textures for a while now, usually in processes that were resumed after the computer woke from sleep. For example I've seen the effect in the ...
1
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2answers
112 views

Swap buttons in layout

Say I have 4 buttons. I want to have button 2 always swap out with another button, randomly. So, when the user taps button 2, it should swap with another button (randomly). Now, button 2 is at the ...
0
votes
1answer
106 views

glDrawElements Crash

This is the "init" code of the Renderer class: glGenBuffers(1,&_idVBO); glGenBuffers(1,&_idEBO); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER,_idEBO); glBindBuffer(GL_VERTEX_ARRAY,_idVBO); GLint lUV ...
1
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0answers
54 views

Techniques of graphics rendering with single CPU core? [closed]

I am interested in methods of 2d and 3d rendering using single thread on an average CPU (e.g. for programming games for old and low-end PCs). While I usually have no performance problems when using ...
3
votes
1answer
91 views

Fixing the size?

My app isn't compatible with all screen sizes. When testing on a small size, my textview overlaps with my button. So, as suggested on the Android Documentation, and many stack overflow pages, I ...
0
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1answer
31 views

Setting resizable to false in LibGDX

I have a small working game prototype. I want to do something like LwjglApplicationConfiguration cfg = new LwjglApplicationConfiguration(); cfg.resizable = false; But I get ...
3
votes
2answers
81 views

How to render transparent meshes without sorting? [duplicate]

Let's assume we have some arbitrary triangle manifold meshes which are transparent. How real guys effectively render it? Is it possible todo it without sorting faces back to front (e.g. via bsp) and ...
4
votes
1answer
181 views

How do splines work?

I've been beginning to work with different kinds of splines (e.g. Bezier, Hermite, B-splines) in some of my work with computer graphics and I am trying to get a grasp of how they work (mathematically ...
1
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1answer
202 views

Cocos2d Sprite 3D position

When I set a position3D for a Sprite in cocos2dx, it render two times the same sprite, i took a screenshot: I set the position3D because i want to use the Z position the give an effect of distance, ...
2
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0answers
156 views

How do i add a rain effect to a top down design game in Java, using no external libraries?

I'm creating a top-down game for my A-level/college computer science project, and I'm trying to implement rain. The game needs to be usable on any platform, so the use of external libraries is out of ...
1
vote
1answer
195 views

Sprites are rendered as black rectangles in android 4.0.x only

I have some problems rendering sprites correctly on a LG optimus vu (android version 4.0) with libgdx. Basically sprites are black rectangles, while other images that i declare as Texture are correct. ...
1
vote
0answers
224 views

Implement Candy Crush like level graph

I want to implement road-map like level graph where in you can see what level are you and your friends are on. Just like we see in Candy Crush Saga.For people who have not seen Candy Crush Saga, ...
16
votes
9answers
6k views

Do I really need to use a graphics API?

Is it necessary to use graphics APIs to get hardware acceleration in a 3D game? To what degree is it possible to free of dependencies to graphics-card APIs like OpenGL, DirectX, CUDA, OpenCL or ...
1
vote
2answers
257 views

Optimize drawing “different” sprites in OpenGL ES 2.0 (batching?)

I started experimenting with OpenGL ES 2.0, and I'm trying to figure out a way to optimize/batch sprite drawing, where sprites only have the texture in common, but differ in the following properties: ...
2
votes
1answer
110 views

How can I recover polygons and normal maps from compiled games through emulation of D3D or OpenGL?

I am trying to generate labeled training data for an artificial visual cortex to learn on. I'm looking for a tool that will, instead of rendering the scene at each pixel just give me the pre-rendered ...
1
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0answers
24 views

Directional light view frustum stabilisation

Calculating directional light view frustum based on scene objects(bounding frustum) results in noticeable scene jittering on camera movement in CSM and non-CSM rendering code paths. What are the ...
0
votes
0answers
31 views

Controlling when a Java game repaints

I've been learning how to program game loops lately and the issue I'm running into at the moment is figuring out how to repaint my window only when I tell it to. I suspect that my issue is not fully ...
2
votes
1answer
345 views

How to draw a polygon with picture in libgdx?

I'm working around a simple rectangle game, It just split the rectangle in to a lot of polygon debris. I use Pixmap and Texture to draw the edges of each polygon. ... for (GraphEdge e: _edges) { ...
0
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0answers
58 views

Project 2d click/touch onto 3d plane

I have a 3d scene that contains an infinite plane that is NOT parallel to the camera (so every screen coordinate corresponds to a point on this plane- in other words, there are no possible invalid ...
1
vote
1answer
41 views

Rotation of rectangles offsets render position

I have an unknown number "Bricks" that must follow a straight, but not always level, path. Each brick is rotated around one central point properly to form a shape of intersecting paths. My problem ...
-3
votes
1answer
135 views

Can I use the graphics or music of an abandoned game in my game?

I was wondering that if a game has been officially closed by the owner can I use their graphics or music they used in their game?
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0answers
98 views

convert 2d pt into non-affine coordinate system

Say I have a coordinate system that goes from (0,0) to (1,1). We'll call this screen_space. Within this coordinate system, I have 4 points that I would like to define another coordinate system. One ...
1
vote
1answer
126 views

Using glm to rotate the modelview matrix based on the cursor position

I am rendering a 3D model of an object, and I want the user to be able to rotate around that object by dragging the mouse. To do this, I want to use the cursor position to continually update the ...
0
votes
2answers
126 views

c++ graphics and pixels help?

Is there a way to change the color of a specific pixel in C++? I've made an example project where I used graphics.h's bar to change every pixel on the screen: #include <graphics.h> int main( ) ...
2
votes
0answers
54 views

What steps can developers take to improve the graphics of their games? [closed]

My understanding is that the differences in graphic quality between games for systems like Xbox One and PS4 and Pixar-style movies stems from that the former are rendered in real-time. But even with ...
0
votes
1answer
313 views

Unity tiles with wierd border flickering when moving horizontal 2D

I recently made some Tiles using a program called Pyxel Edit to create some placeholder graphics. The problem I'm having is that when I move the camera horizontal the edge of the tiles starts to ...
0
votes
1answer
240 views

Can't draw lines in 2D space with GLFW and OpenGL

I'm trying to draw a grid in 2D space using GLFW and OpenGL but for some reason I only get this on the screen: Here's my code: #include <GLFW/glfw3.h> #include <stdlib.h> #include ...
10
votes
1answer
301 views

How can I implement lights & shadows in a multi-layer 2d tilemap?

I am in the process of writing an isometric game from scratch, and I'd like to know how/if I can add lights and shadows. The code I have so far can be found here, but it should be enough to know that ...
0
votes
1answer
73 views

Displaying whole screen image on multiple devices without stretching

In my(Android) game, all of my sprites are scaled against to a particular ratio (this 'guide' ratio stays the same regardless of the actual ratio of the screen on which they are to be displayed) - ...
2
votes
1answer
83 views

Marketing a browser game with a specific audience

My issue is that I have extensively developed an online browser game, but mainly the marketing and independent developer guides tailor to action packed executable games. My game also tailors to a ...
0
votes
1answer
207 views

Render Queue Sorting, HOW?

Recently I'm trying to implement a render queue sorting system, i.e., ordering my renderable objects in an array in such a way that the overhead of OpenGL state changes are minumum. After some ...
6
votes
2answers
135 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 ...
1
vote
1answer
140 views

RPG Game Graphics Help/Review [closed]

I've been working on an simple RPG game and I'm having troubles figuring out how my graphics should look. I'm wondering if any of you could give some advice on how they are/could be more pleasing to ...
1
vote
1answer
69 views

Move a sprite in a sine wave along different angles

I understand this piece of code Enemy.position.Y = StartPosition.Y + (-(float)Math.Cos(position.X / 100) * 100); However it only works along the X axis. What I want to be able to do is move it along ...
2
votes
1answer
205 views

2D World - How to represent my Game Objects graphically?

I want to code my own topdown 2D game with SFML+C++ that later shall have multiplayer functionality. Therefor I want to seperate the graphical and logical Parts of my game. All of my ingame Objects ...
0
votes
0answers
102 views

Sphere texture mapping using Directx 11

I have a spherical panoramic image which I would like onto a sphere and centre it around the camera so I can look around the image, how should I best go about this? I will be using DirectX11. ...
1
vote
1answer
158 views

Map a normal image to a cubemap

How can I map a normal non T form image to a cube map? and if there is no manner with which to do this, is it possible to, via DX11, split the image, as the image may be generated on the fly? ...
0
votes
2answers
129 views

Unity C#: strange texture/sprite problems

I've been making a gallery style shooting game, like something you'd find at a carnival, with ducks to shoot. I'd made the game and it was all working fine. However opening it today, it doesn't look ...
1
vote
1answer
102 views

Screen tearing in emulator

I'm trying to make a game boy emulator, and I'm using Windows for the graphics (StretchDIBits). I'm getting screen tearing like this. I tried enabling vsync in graphic settings but nothing changed. ...
1
vote
0answers
56 views

Texture artifacts depending on texture size

I get some strange artifacting with textures depending on their size. I run OpenGL 3.3 with an GTX 580 so it should definitely support non power of two textures. I've narrowed down the problem ...
7
votes
1answer
191 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 ...
3
votes
1answer
260 views

Swapping graphics engines

Is it possible, or even feasible, to have graphics engine completely decoupled from game logic? Why I ask is because I want to start working on a game (I'm a complete beginner in game development, ...
2
votes
1answer
85 views

Custom Coloring of Tileset Characters

Games like Dwarft Fortress and Dungeon Crawl Stone Soup are drawing their boards using tiles from a tileset image (I think?). I know you can do color keying and replace the background color with ...
2
votes
1answer
46 views

How does hidden surface removal work?

Lately, I've been learning some OpenGL for fun, and I've been thinking about hidden surface removal. Say you have a high poly count static scene, with nothing that moves, no bones, physics, etc. Just ...
0
votes
1answer
51 views

zoom, scale, pan etc in an application and printing [closed]

I have a C# windows application where I display photos for editing. The displayed image is scaled to fit the screen. I allow pan, zoom, rotate, crop operations. Once the editing is done, I would like ...
1
vote
1answer
1k views

Unity 2D Graphics Optimization For Mobile Devices

I want some advices on how to create graphical assets for mobile devices so that the game will have a good performance and not lag on mobile devices. I had 3 issues with my games and that is they ...
0
votes
1answer
188 views

Performance overhead on Non-POT Texture in POT Atlas

Using atlas, we can reduce memory and draw call. And the atlas is usally POT(Power of Two) Texture. And I know non-POT texture have a lot of GPU and memory performance overhead. (link) I have many ...
1
vote
1answer
59 views

Does projection take place before clipping in the rendering pipeline?

At first I thought clipping happens before projection since new vertices may be added and the output of projection is in NDC which is 2D. However after a lot of googling, I found that some ...