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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5
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2answers
475 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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0answers
48 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 ...
2
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0answers
656 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 ...
3
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0answers
67 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 ...
6
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2answers
250 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?
2
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1answer
166 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
84 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
36 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
votes
1answer
114 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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vote
2answers
530 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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vote
2answers
164 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: ...
0
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0answers
115 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
2k 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
219 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
votes
1answer
234 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, ...
45
votes
4answers
18k 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 ...
11
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1answer
4k 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:
3
votes
1answer
183 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 = ...
6
votes
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), ...
2
votes
2answers
229 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 ...
3
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2answers
386 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 ...
1
vote
1answer
202 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
324 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, ...
0
votes
1answer
465 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
219 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
votes
1answer
636 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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votes
2answers
862 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 ...
5
votes
5answers
484 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
265 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 ...
2
votes
1answer
203 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
votes
1answer
411 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
votes
2answers
451 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 ...
1
vote
1answer
227 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 ...
0
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1answer
429 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 ...
7
votes
3answers
680 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
416 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) ...
3
votes
3answers
1k 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
votes
3answers
840 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
351 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
158 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
votes
2answers
450 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. ...
1
vote
1answer
483 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 – ...
4
votes
1answer
461 views

Creating a highlight halo around a selected object

I'm looking to create a halo highlight around the selected objects in my game screen. The main platform is android, but I am writing an iOS version as well, updating it whenever I successfully add the ...
2
votes
5answers
661 views

Need to create beautiful, random, abstract images

To generate random, beautiful, abstract images – which algorithms are not too complex and give good results? Maybe go for some special gfx library, that would draw lines with glow, etc. ? Thank you ...
1
vote
2answers
199 views

How to obtain “annealing” effect via particle system

In this video demonstration, there is the annealing effect, where particles seems to loose their hue and converge into pure white, and then gradually disappear via alpha channel. And in parallel to ...
4
votes
2answers
502 views

Reflections based on distance from plane

Let's consider, for example, a surface like the volleyball court, we can see that legs and shoes of the players are reflected, with a blur effect, but body and stadium don't (as each object not near ...
2
votes
3answers
345 views

Optimizing graphics for an iOS flash game

A friend of mine and myself are working on a flash developed iOS (and later Android) puzzle board game. He's a developer and I'm a designer/developer so (no surprise) we have different points of view. ...
8
votes
1answer
427 views

How are advanced graphics effects implemented?

I'm curious how 3D effects like spells in Warcraft or Torchlight are implemented graphically. I just finished a book on Direct3D and feel pretty comfortable with it and 3D graphics in general, but I ...
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5answers
4k views

Examples of faking 3D

Does anyone know of any good examples of 3D being faked in 2D (not necessarily code, but games I could look up)? The player has the perspective that they are going 'into' the screen and things are ...
5
votes
2answers
1k views

How can I fade something to clear instead of white?

I've got an XNA game which essentially has "floating combat text": short-lived messages that display for a fraction of a second and then disappear. I've recently added a gradual "fade-away" effect, ...