Graphics effect is an video effect which requires non-trivial usage of a standard graphics library calls, or custom graphics processing algorithms like shaders to achive required result.

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Masking between two different 2D sprites in XNA

I'm rewriting a client (2D) for an old game. When rendering a character, the player has a type of hair and an optional type of hat. As far as I can tell, the game does the following to clip hair that ...
5
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2answers
655 views

atmospheric scattering and sky geometry

I'm trying to implement an atmospheric scattering in my graphics (game) engine based on the gpu gems article: link. An example implementation from that article uses a skydome. My scene is different - ...
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1answer
54 views

Effect culling on uneven terrain

I'm trying to integrate a "ground particle" effect (like a fire-circle or similar) in Unity3d, however since i'm using uneven terrain as my terrain mesh, the effect gets culled behind terrain parts ...
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0answers
90 views

Can the Shuriken particle system create particles with random shapes and sizes?

I want to create differently sized (but small, relative to the characters) dust clouds for player movement that move away from the player and fade away by shrinking. This animated GIF from Samurai ...
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3answers
683 views

Create a trailing, ghosting effect of a sprite

I want to create a trailing, ghosting like effect of a sprite that's moving fast. Something very similar to this image of Sonic (apologies of bad quality, it's the only example I could find of the ...
6
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1answer
237 views

Visual effect with dark overlay gradient surrounding the center of the screen

How is it called, what is it used for, and what is the most common way to implement it? I know these are three question in one, but since the first and second are just one-liners I decided to make ...
12
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1answer
453 views

How to implement fake 3D like distortion effects for a 2D side scrolling game?

I'm not certain of the proper terms to search on or even where to begin though I imagine it is some sort of post processing effect. I've seen games like I Wanna Be The Boshy and You Have To Win the ...
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1answer
116 views

Creating a black light (ultraviolet) shader?

I am interested in the algorithm for color picking that would ideally allow to choose what color range will be highlighted and what color range will be faded. I can sort-of understand how to make it ...
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1answer
214 views

How can I create a fade effect between scenes in Libgdx?

I have implemented a screen fade with Scene2D. It currently fades fades out of one screen to black, then then from that black into the next screen. It would be really awesome if I could fade ...
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0answers
237 views

Libgdx and ParticleEffect with scene2d not showing the same way as in the Particle Editor

I am developing a new game with libgdx and trying to implement ParticleEffect in scene2d (using actor). I am creating a ParticleEffect with Particle Editor in which I would like to add to a stage. ...
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0answers
78 views

How to make good looking bullets with a trail for top-down shooter?

So I am making a TD shooter and was wondering how to make fancy bullets. Right now I have a giant sprite of a bullet trail that is the bullet as well but it doesn't look that good. I am using libgdx ...
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0answers
794 views

2D water shader in SFML

I want to implement the algorithm for a 2D water surface described here and here. Before somebody finds out, beats me up and deletes this, I'm gonna say it myself. I posted this question over at ...
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2answers
313 views

How do I create smoke-like beam or aura effects?

I mean things like the Team Fortress 2 medic gun: ...or the Killzone: Shadow Fall anti-gravity effect: How do these work?
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1answer
200 views

How do I make the screen shake when the player takes damage?

I am making a 2D game and I'd like a visual cue when the player gets hurt. Currently, I have a simple blinking red dot that shows up for 2 seconds after damage, but it's not very immersive. Many ...
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1answer
146 views

How do I make a sprite blink on an HTML5 canvas?

I'm thinking of the flashing effect many games have when a character gets hit and takes damage. Something like overlaying a lighter color on visible sprite pixels for a second.
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1answer
62 views

problem with texcoord at post effect (quad rendering)

I have this shader: float4x4 View; struct VS_INPUT { float2 Position : POSITION; float2 TexCoord : TEXCOORD; }; struct PS_INPUT { float4 Position : SV_Position; float2 TexCoord : ...
5
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1answer
119 views

portal cutoff effect

I want a 3D Mesh to come out of a flat portal. Only the part of the mesh that's coming out of the portal should be rendered, so the mesh should be cut off or sliced until it's fully outside the ...
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2answers
592 views

How to create a magic orb like in Skyrim?

How would I go about creating magic orb that looks like from magic menu in Skyrim in Unity3D? Here is what I have in mind: Orb Image And a video of that effect from 0:09-0:13: Orb Video
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2answers
184 views

General visual effects to meshes/entities

I am trying to add some visual effects to some entities, meshes, or whatever you want to call them as they are looking pretty dull in my game right now. What I want to achieve is this: ...
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0answers
142 views

Terrain effect animations in Unity

I am trying to find out how can I make terrain effects animations that are possible at any given position. I have though about this and I can't seem to find any ideal solution using the following: a) ...
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1answer
3k views

Create fog (smoke) on Unity3D?

I'm creating a game where you are inside a boiler room, the problem is I want to create the fog (smoke) to make this more realistic.
3
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1answer
261 views

How to achieve animated glow

I am trying to achieve something I've seen numerous times, but I don't know where to start from. I've come across numerous old effects, which I can't recreate. The said effects are the glow animations ...
3
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1answer
262 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, ...
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4answers
19k views

How is 2D lighting implemented?

I am wondering what the best way to approach a "lighting" effect in 2D games is. For instance, if my main character is glowing, what techniques can I use to complete the visual effect of the character ...
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1answer
6k views

How do I create a cel-shaded cartoon look?

I am interested in everything related to this kind of effect (modeling, game engine, animation). What sort of stuff is needed? Here are some sample images of what I mean:
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1answer
218 views

sprite animation individual framerate

When animating sprites I am taking the delta difference between frames and locking the rendering frame rate of the sprite animation to the delta time. float delay = 1000.0f / FPS; float now = ...
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3answers
2k 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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2answers
256 views

3D Distortion Effect

I'm trying to make a distortion effect similar to this: However I'm not making a 2d screen space effect. I'm applying it to a 3d scene and I want it to be placed IN the world, so it can be blocked ...
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2answers
448 views

What causes polygonal twitching in older games?

I'd like this answer large part to curiosity and I'd like to recreate it with our modern computers somehow. By old games I'm referring to ps1 games. My specific example would be Megaman Legends I've ...
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1answer
242 views

Damage indicator screen overlay

I want to make something already done by a lot of games , which is when I am taking so much hits from enemy red screen drawn like the following , using XNA 4.0: after it's drawn and I am still alive ...
3
votes
2answers
379 views

Screen effects and antialiasing

I have been working on a game for a while using glut for basic window creation. I was rendering to an offscreen buffer so that I could implement various effects like screen bulging, motion blur, ...
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1answer
504 views

How to create a fog effect in XNA with PixelShaderFunction?

I developped a small XNA games in 3D. I would like to add a "fog of war" on my models instantiated with an effect in my (.fx) file. The problem is, I do not know how to change the function ...
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1answer
245 views

how to add fog to a model instantiated in Xna? [closed]

I work on a small XNA games. I generate a large map type voxel. a floor of 1000 cubic long by 1000 cubes wide. This is why I use the method "MODEL instancing" with hardware instancing to generate a ...
7
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1answer
747 views

How to make a 3d beam effect with XNA 4.0?

Do you know any demo or tutorial to learn to make a 3D Beam effect? I have learn to make a 2D laser by simply using a texture and moving it thru screen. But I am a little bit lost while trying to do ...
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2answers
909 views

Is it possible to fake blur via images?

I'm using libGDX for an android game; as far as I can tell, it doesn't have an API for blurring. Reading on Wikipedia, it seems like blur is formed by setting each pixels RGB values to the average of ...
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5answers
566 views

How can I make a falling down effect in 2D - Birds Eye View

Currently whilst making my game, I'm not sure how I am going to implement the actual gameplay/environment of it. At first I thought to do a side-on plat-former, where my character falls down the ...
2
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1answer
289 views

Do games depend on OS to scale resolution?

I'm having issues with my computer related with scaling when using different resolutions other than the native. So I started to wonder, in PCs, is scaling handled by the card driver or the game ...
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1answer
232 views

How to simulate a spinning helicopter rotor visual effect programatically?

I decided to display an animation that conveys to the viewer that a narrow flat surface is spinning really fast(such as an helicopter's rotor blade). Does anyone have any experience in implementing ...
11
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1answer
419 views

Breathing for game/movie characters

Breathing (the movement of chest and face features): I'd like to ask if it is hard to model and whether it is computationaly expensive. I recently noticed the great effect it has in Madagascar 3 ...
8
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2answers
467 views

How do display a “mucus spreading” effect in a 2D environment?

Here is an example of such a mucus spreading. The substance is spread around the source (in this example, the source would be the main alien building). The game is starcraft, the purple substance ...
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1answer
238 views

Absorbtion 2d image effect

I want to create a specyfic 2d image effect. It consists in modifying a sprite so it looks like it is being zoomed to a point or "absorbed" by that point. I'm not really sure what is the technical ...
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1answer
550 views

Calculating distance from viewer to object in a shader

Good morning, I'm working through creating the spherical billboards technique outlined in this paper. I'm trying to create a shader that calculates the distance from the camera to all objects in the ...
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3answers
789 views

How can I implement an Iris Wipe effect?

For those who doesn't know: An iris wipe is a wipe that takes the shape of a growing or shrinking circle. It has been frequently used in animated short subjects, such as those in the Looney ...
0
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1answer
439 views

How to add energy ball which disappears when touched by player in UDK?

I am new to UDK and learning game development. I want to know about how to add a ball to the game world with the following effects/actions: Glowing effect Physics-like object (just having gravity) ...
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3answers
2k views

How many BasicEffects do you have in a Game? What is the best way to render multiple objects/shapes at once?

I'm trying to understand 3D rendering and it seems that everytime you render a new object (A 3D Cube or something) you need to have a new BasicEffect for each Box you render unless you want the exact ...
9
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3answers
951 views

How to do the Geometry Wars gravity well effect

I'm not talking about the background grid here, I'm talking about the swirly particles going around the Gravity Wells! I've always liked the effect and decided it'd be a fun experiment to replicate ...
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0answers
386 views

How to code a 4x shader/filter which emulates arcade crt display behavior?

I want to write a shader/filer probably in adobe Pixel Bender that will do the best job possible in emulating the fill of an oldskul monochromatic arcade CRT screen. Much like this here: ...
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0answers
162 views

XNA C# Phun-Style Window Movement Effects

Ok, so I'm making a game in XNA similar to Uplink (computer hacking) and I have a lot of ingame panels that display information, such as mission details, emails, passwords, and so on. To add to the ...
3
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2answers
521 views

Creating 2D waveform for Cocos2d game

I'd like to have a Waveform in my iPhone game that I am developing using Cocos2d v2.0. That's the ideal wave I'd like to achieve. A simpler wave which I would still be happy with is this one. ...
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1answer
544 views

How to obtain contrail visual effect?

I have objects moving in OpenGL ES1 application. I want some of them to leave behind contrail – like if they would emit some radiation or something. EDIT: the kind of contrail is: light contrail – ...