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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110 views

How can I create a wind visual effect like Ori?

I'm working on a mobile game in Cocos2D. The game mechanic is very similar to Ori and the Blind Forest's parachute (Kuro's feather) mechanic. I want to be able to render a visual effect for wind ...
4
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2answers
138 views

How can I create an “afterimage” effect like this one?

How can I make an effect like this? With a particle system?
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1answer
63 views

How can I achieve a flickering torch/candle effect in 2D?

I'm currently working on a 2D lighting system that has point lights effectively rendered as a quad in a top-down 2D view, something like this for each light: I'd like to achieve a somewhat ...
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0answers
37 views

How can I use pre-rendered high resolution models as a basis for generating normal maps?

I was reading through the Wikipedia page on pre-rendering and at the end they mention in the following quote that doom 3 used pre-rendered models? While making Doom 3, id Software used ...
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1answer
153 views

JavaScript 2D liquid flow

Brand new to games/graphics and I'm attempting to find a method to create a 2D liquid effect with JavaScript. Ideally I could adjust the viscosity and flow from a gas/fog effect to oil and between. ...
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1answer
23 views

XNA 2 3D Objects Depth Convergence Error

Gah! I have a scene with 2 3D objects - a plane and a sphere; the plane sits on the xy axis with a depth if -100 and diameter of 200; the sphere diameter is 32 and sits on the xyz = 0 position; ...
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1answer
37 views

How to draw a sprite at a floating point xy coordinate with interlaced drawing?

I have a 2D game made in MonoGame (XNA 4.0 framework). Here's what I want to do: draw a 2d image at a floating point xy coordinate such as 125.5, 300.12 (and do NOT round them to an int). the image ...
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2answers
87 views

How do I implement a flashlight in SDL2?

I'm a beginner trying to implement a flashlight in SDL2, but can't figure out a good way to do it. I've found a way to manipulate the background's color; changed it to dark and back to its normal ...
5
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1answer
657 views

Unity: Apply an Image Effect on one layer only

Please consider this simple scene. It’s composed of 3 different game objects. 1 background image + 1 static character image + 1 small part (with the pet) that is changed at runtime to perform an ...
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3answers
576 views

How do I write a shader that lights up when objects are near a surface?

In this Overwatch gameplay video, the character's shield lights up white in areas that are near other objects' geometry. Note the white edges on the blue shield, near the floor, walls and pillar. ...
3
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1answer
107 views

How to write a custom shader in Unity 3D that lights up a specific pixel or group of pixel?

I'm making a FPS game in Unity, and I want the environment to light up as the player is shooting on his environment. The map would be entirely put in darkness at the beginning, but as the player ...
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1answer
60 views

Fixing strange artifacts in an HQX shader

I'm having an issue implementing an HQX filter that I found in the LibRetro GitHub repository. LUT texture was obtained here Shader file was obtained here (I converted it to compile in MonoGame with ...
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3answers
168 views

How area-of-effect effects are projected into games world?

I see a lot of skills in the games I play where they have a skill or a search area that projects a drawing on to a map, like a circle or something similar and I have no idea how that is done, and I ...
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0answers
202 views

How do I make volumetric grass?

I've been extremely interested in volumetric technology, especially for grass. Online resources are extremely scarce on this topic. What is the difference from creating a lot of mesh billboards? ...
6
votes
2answers
139 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 ...
3
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1answer
273 views

Monogame fails to load Effect

I'm currently porting an old XNA game over to MonoGame and everything (including custom shaders) build fine. However when i try to load the xnb file using content.Load<Effect>("BaseDraw"); I ...
15
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3answers
1k views

How can I model a star?

I'm trying to model a star in Unity, and it, sort of works, but it's not ideal. Currently, I'm using a large sphere with a self-illuminating material containing a star texture applied to it's surface, ...
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0answers
601 views

Creating lightning effect with glow effect

I am trying to recreate Drilian's lightning bolt in unity and I have faced a problem in the "Adding Some Glow" part. I am missing glow effect (and/ or "rounded beams"). Here is what I am doing: I ...
3
votes
1answer
240 views

How to render a curved horizon when rendering terrain far away

For games with long view distance, it might look at bit weird when you fly high above the ground and the horizon is all flat. So, how can I make a crumb/bend effect, when I fly high above the ...
4
votes
1answer
252 views

GLSL 2D Silhouette

I'm trying to render a silhouette of any entity behind foreground objects to indicate their position to the player. Here's an example of what I want to achieve, from Hyper Light Drifter: From what ...
4
votes
2answers
241 views

How to achieve sprite reflection effect in libgdx

I am currently working on an open world game similar to Pokemon using libgdx. I am currently stuck on this effect that I really want to be done before moving to other features of my game. How can I ...
2
votes
1answer
227 views

Cocos2D V3 Blur effect performance test without iOS device

I am testing the blur effect (CCEffectBlur) in Cocos 2D V3 and I found that when I add an effect to an EffectNode it takes up to 5 seconds to appear in the IOS Simulator screen. (I know that the IOS ...
4
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2answers
281 views

How to make sure Sun Shafts are emitted only from background elements?

Currently I have a game scene entirely made of standard sprites using the default material. I use the Unity standard effect named Sun Shafts. I have tried many combinations of shaders and other ...
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1answer
55 views

How to define default graphic setting?

Currently I'm developing a PC game using Unity Usually on PC games we found graphic/video settings due to varying hardware installed and limitation. Just as in the title, how does a game set its ...
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1answer
612 views

In Unity, how do I render a chromatic aberration effect?

I'd like to replicate the effect used in Teleglitch: In this scene, an object is rendered more than once at different position with different color. This game uses this shader effect to create ...
0
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1answer
71 views

Shadow map depth error makes all light be covered and hidden

I've been following the tutorials listed below: http://www.riemers.net/eng/Tutorials/XNA/Csharp/Series3/Shadow_map.php http://xbox.create.msdn.com/en-US/education/catalog/sample/shadow_mapping_1 ...
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2answers
533 views

In Unity3D, how do I create an efficient scratch card effect?

I want to create a scratch-card-like effect in new Unity UI's new Image tag. I know it's possible with setPixels, but that's prohibitively expensive on mobile devices. Something like this: I'd ...
4
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1answer
267 views

Why does my Outlined Diffuse 3 shader seem “detached” at a distance?

I'm using the Outlined Diffuse 3 shader from Unity and I'm having a problem with it: the outline looks great when the camera is near the object, but at a distance, it looks detached. From nearby ...
0
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2answers
164 views

Draw many flashlights' focused lights' “circles” on a voxel engine map (and other objects)

So, I've been searching the internet for a while and I still didn't understand how to create a flashlight's "circle" in front of the camera over other objects. I found the following links: using ...
3
votes
1answer
87 views

How do I render an object's position trail of a constant length?

I want to show a trail of the last points that the object has been in, but I want that trail to always be a certain length, regardless of the object's speed. How can I do that? At the moment, I ...
2
votes
1answer
437 views

2D Hidden Object Silhouette Shader

Right now I am not using any depth information in my engine, but I just found out that it would be neat to be able to render the silhouette of important game objects that are "behind" something with a ...
0
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1answer
2k views

How do I create a circular progress bar in Unity3D 5?

I am new to programming and Unity3D. I want to show a circular progress bar starting invisible and growing in 3 seconds to a circular line when reloading is done. How can I do that?
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1answer
288 views

Creating a 3D mushroom cloud [closed]

Hi I am trying to create a mushroom cloud animation for my strategy game. Something like this. I have been looking at info for creating explosions in general, and the way to go seems to be using 2D ...
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1answer
55 views

Issue with rotating particle effects with DrawUserPrimitves

I am creating a voxel-like game in XNA/Monogame. I am trying to create particle effect of which I create by making a list that is populated every frame. My issue is here: I am using a WorldMatrix to ...
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vote
1answer
205 views

Apply shader to only a part of a sprite

I'm trying to make an image blur when a transparent image overlays it, I am wanting it only to blur the section that is being overlayed. So if half of the original image is not being overlapped, that ...
1
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0answers
208 views

How to make a sword swing effect

I'm working on a 2d java game on Slick engine and I always wondered how to make swing effects when striking with a sword? How to code something like this? ...
1
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2answers
107 views

Curved Meters and Gauges

I'm wondering how people here on GameDev stack exchange would handle curved meter GUI elements for things such as life bars or energy bars. My thought on the matter was that you could use a shader ...
0
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1answer
192 views

Java Slick2D Image Glow Effect

How can one achieve a dynamic glow effect in Java Slick2d? I want an image to be surrounded by a glow when I move my mouse over it for example. Example: No glow Glow Is it possible to make this ...
8
votes
1answer
2k views

Creating a glitch effect similar to Watch Dogs

I'm currently working on a LibGDX game. When a user does something wrong, I would like all the graphics on the screen to jitter very similar to the glitch/distort effect seen in the game Watch Dogs ...
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0answers
660 views

Libgdx implement 2d drop shadow for transparent sprites

I am a libgdx learner. For an learning application that I am developing using libgdx on android, I need to show drop shadow or glow effect when a sprite is touched. The sprites are created from a ...
3
votes
2answers
154 views

How can I draw curves above a mesh surface?

I am making an animation of a deformed sphere that represents some aspects of the wave function in a hydrogen atom. I am starting with an octahedron that i push through a tessellation shader. The ...
1
vote
1answer
136 views

Getting normal map of an image

I'm trying to achieve the results in this tutorial: Link So far, I was be able to do that; with these; public PixelMap GetNormalMap(double strength) { var newMap = new ...
2
votes
2answers
564 views

How can I implement a futuristic “barrier field” that reacts to hits?

I want to implement a "shield" that reacts to projectile hits. Currently, my colliders are mapped to the animated sprite's outline on all frames. I'm looking for something like the image below. For ...
0
votes
1answer
192 views

Rendering a fullscreen quad is leaving a one pixel line on the left and top

I am rendering a fullscreen quad using XNA. I am having an issue where the top pixel line and left pixel line are not rendered. It should be black in the picture. Can anyone tell me why this might be ...
0
votes
1answer
252 views

How can I create the illusion of a 3D object moving around in a static background?

I'm designing a Resident Evil clone using OpenGL. I'm curious how the older Resident Evil games used a static pre-rendered background with 3D models roaming around: Here, if the main player ...
1
vote
2answers
212 views

How can I create an aperture-closing effect?

I'm looking to create an effect like this in a game I'm making: I would describe it as a camera aperture closing. I have the following requirements: I need to be able to reverse the fade (open ...
1
vote
1answer
264 views

How to draw a diagonal fade-in and fade-out?

How to draw a diagonal fade-in/fade-out in 2D using MonoGame draw API? For a simple (non-directional) fade-in/out drawing the background with alpha variation do the tricks, but what is the standard ...
6
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3answers
1k views

How can I create a contrail effect for a spaceship in motion?

I am curious how I could create an effect similar to the ship's tail in the following picture:
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1answer
176 views

Voxel engine/vertexes: how to add more and more different textures during game runtime and change some of the blocks' faces?

It's difficult to ask this, but I'll try. The thing is: I asked before somethings about creating ramps and blocks with vertexes. [I'm using C#/XNA.] Explanation: now I got a chunk that has blocks ...
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1answer
162 views

Pokemon Yellow wrap transitions

So I've been trying to make a pretty accurate clone of the good old Pokemon Yellow for quite some time now and one puzzling but nonetheless subtle mechanic has puzzled me. As you can see in the ...