Questions tagged [graphics]

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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44 views

what is the difference between the regular camera and the first person camera?

I'm asked to implement first person camera but all I know is the regular camera that moves when I hit specific keys and could anyone tell me the steps to implement it?
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1answer
531 views

How to implement trail renderer like unity?

I wang to implement a trail renderer in my course about compute graphics using OpenGL. I google this question and search it in https://gamedev.stackexchange.com/ and find nothing except unity trail ...
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1answer
35 views

Displaying debug line in custom raytracer implementation

Not sure if I should post this here or on the Math forum, but I will try my luck. Some background. I made my custom raytracer. The processing happens purely on the CPU for now, no GPU interaction ...
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2answers
94 views

Midpoint displacement generating unsatisfactory terrain

Following this lesson for implementing mid-point displacement algorithm for terrain generation. I aim at generating a wavefront(obj) file of the terrain I have an array of dimension (2^n + 1) x (2^n +...
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1answer
903 views

Loop around a 2D Tile Map

I have made an algorithm for procedurally generating a 2D tile map in Unity. The player can use the mouse to pan the view and look at the map. My intention was that when the player reaches one of ...
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3answers
211 views

weird behaviour doing simple XMMATRIX multiplications

I have the following function: ...
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1answer
84 views

Gameobject becomes a Cube when uploading it to Unity from Blender

I'm making a 3d mobile game, for one of my gamemodes i need "Hexagon" gameobject. According to my research I can create unique gameobjects in blender. So I tried to make a hexagon and export it as an ...
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1answer
295 views

Unity using 40% GPU for just a UI interface on ultra but 90 on low?

So I made some software using unity for my FRC team. All this application is, is just a User Interface with labels, input fields, buttons, etc... When I choose the quality to be on Ultra, I will get ...
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0answers
144 views

Draw coloured transparent polygons on top of texture in modern opengl

I am trying to render an image in the viewPort using symmetry_create = 1 and binding texture to it. ...
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0answers
100 views

Show the edges between the clipping plane and clipped objects

I want to utilize shaders to not only discard fragments if they are on one side of a predefined plane but also render a contour along the intersection. My fragment shader currently does something ...
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0answers
94 views

Graphics messed up when I try to reskin the game in Android Studio

I need a little help. I'm new in Android Studio, I have a game where I want to reskin the design. First of all when I install it on my phone with the original files the game run perfectly without ...
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1answer
145 views

How much slower is it to draw on "half pixels"?

I've noticed that games like Diep.io are using floating decimal points for thin stroke lines on the grid. I have even tried this myself, by adding 0.5 to all of the ...
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1answer
271 views

Planet Surface Rendering: Precision issues [duplicate]

I have been experimenting with C++ and OpenGL, and I am currently writing a program that renders the surface of a planet; specifically, our moon. It's a modified version of the GPU Gems implementation ...
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2answers
8k views

Is it possible to apply a texture to a 2D-sprite in unity 2-d?

I want to take an (animated) 2-d sprite and apply a texture to it. Basically, I want every non-transparent pixel to be covered by the texture (color is disregarded). I understand I can probably ...
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1answer
321 views

How to access Lit shader properties through code?

Currently i'm using HDRP in my project, so i have a question. How can i access Lit shader properties through code ? Or where i can see names of variables in this shader ? For example:
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171 views

Find transformation to align two polygons at fixed points?

Problem I have a source image (arbitrary width and height c) shown here as a rectangle [X1,X2,X3,X4]. It contains two points C and D (both known coordinates within ...
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2answers
923 views

Difference between reflection mapping and raytracing

Both methods involve casting a ray unto the reflecting object. It will be reflected. In reflection mapping - the intersection of this reflected ray with the environment map (texture) will yield the ...
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1answer
191 views

Running OpenGL app on Windows XP x86 produces incorrect texture colors

I'm working with the Cen64 emulator and I compiled from source a x86 version that operates fine on Windows 10 x64. As soon as I run it on a Windows XP x86 machine the colors are then all incorrect. ...
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39 views

Texturing edges of a procedurally generated polygon

I'm generating a polygon from code to display unit ranges in my game. Here's how it looks so far: I would love to be able to now use my texture and only apply it to the edges of this polygon (imagine ...
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1answer
191 views

XNA 4.0 How to change GraphicsDevice Default DepthStencilState Value

I want to change one of the deafult values of my GraphicsDevice to that: GraphicsDevice.DepthStencilState.DepthBufferEnable = true; But I know only to change it ...
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1answer
122 views

Unity Graphics.DrawMesh lags behind rotation?

I have a setup in unity using Graphics.DrawMesh() to draw a mesh on my players camera location in the update loop, ...
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2answers
227 views

How to develop custom Unity graphics?

Processing is a Java library for working with computer graphics, providing methods by which to draw primitive objects, custom meshes, etc., as well as mathematical methods (such as Simple Harmonic ...
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1answer
442 views

Polygons depth sorting in Z-buffer

Why is it that the Z-buffer algorithm does not require polygons to be depth sorted to function correctly?
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1answer
34 views

Use 2 values of a mask

Let's say one has a black/gray/white mask and wants to draw picture A over the white/gray values and picture B over the black/gray values (the blacker the more B picture). The best I come up with ...
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1answer
301 views

How to create a decent strategy game without becoming an artist?

I love to make games. But I am not an artist. I never learned to make 2d or 3d models. I spent most of my time on programming. I know there are Game engines for non-programmers. But I am looking a way ...
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1answer
196 views

Object made of cubes looks different based on the distance in Unity3D?

I made a "Wall" from basic Unity3D cubes. They are placed tightly so the wall looks like one big rectangular prism. If I look at it from close distance, it looks as it should be: one big rectangular ...
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2answers
295 views

3D affine transformation (rotation) mimicking Mode 7, Java 2D

I watched videos of games using mode 7 like Outrun or Space Harrier and I want to make a game which imitates this classic graphic. I was inspired by Notch's Prelude Of The Chambered too. After ...
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1answer
127 views

C# Unity - Multiplying Colors in loop results in wrong results

Good day, I'm trying to generate a tilemap, my current setup is a base tileset, and a few overlays for the different biomes / terrain heights. In my code, I generate each biome's tileset, based off of ...
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0answers
729 views

Is it possible to crop a render texture in unity?

Basically what I want to do is, take the source render texture from OnRenderImage and crop it (continuously). I've already achieved this by using ...
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2answers
699 views

Sprite brighter than texture

I have imported a new texture into UE, and have created a new sprite. I have setup the material of the sprite as follows: I have also set my texture as texture-parameter. But my sprite renders ...
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1answer
223 views

How much time would it take to make a sprite-based isometric game with customizable characters? [closed]

I've never been good with 3-d models, but I can do sprites. I was hoping I could perhaps make a 2-d isometric game that acts like 3-d. Something like Don't Starve is what I have in mind. Here's the ...
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0answers
113 views

Cascading Shadow Maps - Spotlight Projection

In all the cascading shadow map explanations I have read, the final projection into the shadow-map is done using an orthographic projection. This makes sense for a directional light because a ...
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1answer
120 views

I don't know what's wrong with the code

I am making a 2D game in java but it doesn't draw anything on the srceen and I don't know why. I have files(Main.java -> JFrame, Game.java -> GameLoop). Code: Main.java: ...
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2answers
163 views

Adding large 3d models into Unity

I have a 3d model of a restraunt with several characters in it probably over a hundred objects. Whenever I try to import it into Unity Unity just loads forever until I force close it. How do you ...
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1answer
121 views

Interesting graphic artifact

I was exploring old Minecraft source code when I encountered this: I just wanted to know what causes such distortion and how to fix it with OpenGL?
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0answers
270 views

How do you find the collision between 3D boxes and 3D QUAD face meshes?

I have an axis aligned bounding boxes for 3D object collision, but I have a complex 3d mesh that's divided into 3d faces so I want to check for bounding boxes and collision with the faces of that ...
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1answer
2k views

Strange realtime shadows in Unity3D

I'm trying to do realtime lighting, and my shadows are acting very strange. When I project a spotlight out from the camera (like a flashlight in a first person game) my shadows show up as 3D skews of ...
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2answers
694 views

Ordered dithering between "discrete" colors?

I want to achieve color dithering between discrete colors like this: As you can see, there is no gradient, or technically there is, but very discrete as it's only a 3 color image (right bar). So I ...
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1answer
836 views

JFrame pack() method

I'm quite new to java. I was developing a game using java and I realized that the position of pack() method can influence rendering. For instance: Frame Class ...
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2answers
826 views

Graphics2D.drawImage not working

I'm quite new to java. I'm trying to come up with my own game after watching a few video tutorials. However, I encountered a problem where I cannot draw an external image file that I loaded using the ...
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1answer
559 views

Does it make sense to do more calculations in the fragment shader if there are more vertices than pixels?

I'm very new to graphics programming, and as I understand it vertex shaders are called per vertex and fragment shaders are per pixel (ignoring anti-aliasing). When it comes to optimization all sources ...
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1answer
266 views

How do you handle large triangles with frustum?

I am rendering the Sponza scene ato test my frustum implementation. My current approach is simply, test if the vertices of the triangle are within the frustum (angle between the camera looking ...
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1answer
418 views

Do I have to take aspect ratio into account, when computing a direction in View Space?

I read an article about implementing a Single-Pass Volume Renderer. After thinking about it, I have a question, which concerns the provided GLSL code snippet of the Fragment Shader. To calculate the ...
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1answer
51 views

Display dynamic texture image on inside of sphere

I'm displaying a ring wherever the camera 'looks'. When the camera faces the ground (green) the ring image always looks correct, see image: However, my scene is within a sphere (purple)... and when ...
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2answers
481 views

Parts of sprite disappear when zoomed out

I'm playing around with making a roguelike and I want to use ascii characters as tiles in the game. I'm using a 256x256 sprite map where each character ends up being a 32x32 box. This works fine, ...
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1answer
74 views

Calculating the shadow cast by triangle onto the YZ plane

So, one of the exercises for my computer graphics class is as follows: Calculate the shadow cast by triangle T onto the YZ plane P. given: Triangle T coordinates: A=(30,10,16) B=(32,11,18) C=(31,...
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1answer
2k views

Surface Depth Intersection Shader

I recently asked a question about the creating an accurate Depth Intersection Shader. When creating this in a fragment / vertex shader it could be achieved by the following code ...
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1answer
243 views

UNITY - Huge amount of GRAPHICS in RTS Tiled game

after year of development and week of unsuccessful optimization I turn for a help from you, guys. So, my game is turn-based strategy with hexagon map. One hexagon consists of one texture for hexagon ...
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1answer
6k views

Depth Intersection Shader

I am trying to create a shader in Unity that shows where intersections occur between objects. Most of the shader I have so far is based off of this youtube tutorial. However, I have made some slight ...
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0answers
65 views

Wave interference like render effect

(Someone on gaming told me to better post this here.) So in a lot of games lately I've seen this weird "light interference effect" where objects on the edges of my screen become red and blue blurry. ...

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