3D refers to three dimensional space where coordinates are represented with X, Y and Z values.

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4
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1answer
554 views

UDK: Animating characters with weapons

I imported a custom character and a pistol model to UDK and both work, but the pistol doesn't appear with the animation of the pistol when I shoot or reload... Also, the character doesn't change its ...
0
votes
2answers
122 views

Supersampling - Pixel color average calculation

I am currently trying to understand Supersampling. Wikipedia says (or at least Wikipedia tells me) that multiple color samples are taken from one pixel to calculate the final result. But to my mind ...
10
votes
3answers
1k views

Prevent players from wallhacking in an online FPS?

Why do we still complain about wallhackers in multiplayer first-person shooters? Isn't it possible to perform occlusion culling for all players server-side? For example, send player xyz information ...
0
votes
0answers
17 views

Conversion from .dae to XML for 3D Models in Unity BuildR

My partner and I are trying to import .dae files from Sketchup as well as 3DS Max into Unity's BuildR extension. Collada a.k.a. .dae files have an XML-based schema so we incorrectly assumed they would ...
1
vote
2answers
82 views

Object orbiting a 3d sphere

I'm developing in libgdx java/android but not using any high-level environment like Unity. I have a sphere at [0,0,0], with a PerspectiveCamera looking at it. Through the main game loop I have ...
0
votes
0answers
17 views

Is it possible to Change the vertex format of a Model from line list to Triangle strip using DirectX

So I have a DirectX game library and using DirectX models in a game I am developing. All the models I am using have a Triangle Strip topology and thats fine as ID3DXMesh uses triangle strips for ...
0
votes
1answer
22 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; ...
-1
votes
1answer
83 views

How can I render 3D frames quickly using VB?

I want to make a simple 3D engine using vb. It must be fast at creating frames obviously for a 3d game. So this code i have draws a frame at 4 fps Dim SM = DateTime.Now.Millisecond Dim ETDFrame ...
1
vote
0answers
80 views

Dual Contouring - what is it and how to use it?

I'm having trouble understanding Dual Contouring yet and I need some explanations from someone who has first hand experience. I searched all I could before writing this question. I've already read: ...
0
votes
1answer
116 views

OpenGL One Color Per VBO

Recently I have been working with OpenGL and have decided to use colors instead of textures. However, since the project I am working on is going to have a low-poly look, I want each color to stand ...
44
votes
12answers
4k views

How can people recognize what engine a game uses?

About many games you can say "oh that's the Unreal Engine for sure", or "this was made by upgrading GTA 4", etc. We can often recognize the engine used for a game just by looking at its graphics ...
0
votes
1answer
132 views

Why there are no 3D games which allow you to move? [closed]

I've tried many 3D augmented reality games animations vs. all of them were based on this concept: your head is on one reference point, standing still, they only allow you to turn your head and look ...
1
vote
0answers
50 views

Point Light shows black box & rect (PointLight not working) - libgdx 3D

I am creating a 3d scene currently a box and rect, and trying to enable lighting. When i create a PointLight and add it to Environment everything turns to black color? all i want to do is ...
1
vote
3answers
406 views

What name (if any) applies to this particular 3D rendering technique?

Is there a name for this technique where when instead of rendering certain polygons, you just calculate a few key points and do the drawings in 2d? For instance, instead of rendering a sphere, you ...
0
votes
1answer
57 views

Rotations of a Rubik's cube

I made a Rubik's cube by arranging smaller cubes. Now I want to apply animations to it. For that I am choosing to use the Rotate class and set the angle of rotation and the axis of rotation,like this ...
0
votes
1answer
34 views

Rotation of a cube

I came across the statement "rotation about a pivot and an axis" in javafx. The axis is defined byPoint3D and the pivotX, pivotY and pivotZ are of double type. I could not form a relation about what ...
-4
votes
2answers
101 views

The Power of 2D Engines vs Modern 3D Games [closed]

I'm toying around a lot with Game Maker. I really like it. GML is very simple and with its nearly object oriented design you could create anything in 2D you can think of. However there is a limit. ...
1
vote
0answers
15 views

Maya users; how can I create my own particle emitter in Maya?

(Originally posted in the Programmers Stack Exchange, but was told to ask here instead. Whoops.) Before you answer this with "well, use the built-in particle emitter", read further. For one of my ...
1
vote
1answer
67 views

Display mesh in front of camera

Im trying to display a mesh in front of the camera and FACING the camera ( I'm developing an small editor in wpf using helix3d). Pretty much something like this question I load my mesh into a ...
0
votes
1answer
50 views

World Space Normals Are Black

My world space normals appear fine for most of a mesh. However, some of the normals are black. I was wondering if anyone had any ideas why this is. This happens for any mesh, not just this sphere. ...
1
vote
0answers
32 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 ...
0
votes
1answer
71 views

Strange artifacting with textures (Pseudo 3D)

I'm using SFML to make a pseudo 3d engine (Technically not software rendered since SFML uses OpenGL) and things are going rather swimmingly, but then I tried to make another wall, the picture says ...
1
vote
1answer
52 views

How to calculate a vector for multi-axis rotations from sphere coordinates?

I'm working on a SceneKit project in iOS, trying to rotate a sphere (representing a planet) so that a point at a given longitude/latitude coordinate is facing "forward" (i.e. that point moves to the ...
-2
votes
1answer
67 views

How do I get into 3D Java game development? [closed]

I have learned how to make a 2D game in Java using Eclipse and processing but I am not sure how to do 3D game development. I have tried looking up examples of how to do this but I have not found any ...
4
votes
1answer
185 views

Hierachical Z-Buffering for occlusion culling

I'm reading the Occlusion Culling section in Real-Time Rendering 3rd Edition and I couldn't understand how it works. Some questions: How does having a "Z-pyramid" contribute? Why do we need multiple ...
1
vote
1answer
90 views

Is it ok to use polymorphism as a way of “interfacing” with objects in a scene? [closed]

I'm designing a class that holds values representing a 3D scene. This includes lights, cameras, meshes, materials, etc. The way how I'm setting it up is that each "thing" has a name. A camera has a ...
2
votes
1answer
130 views

How can I optimize block rendering in an OpenGL game?

I am working on a game with blocky graphics -- similar to Minecraft. My world generation algorithm is similar to the Diamond-Square algorithm. The terrain was initially too rough and uneven, so I ...
50
votes
9answers
69k views

Easy to use cross-platform 3D engines for C++ game development? [closed]

I want to try my hand at writing a 3D game. However I don't want to start at such a low level of drawing individual triangles and writing my own 3D object loader and so on. I've heard of things like ...
1
vote
1answer
45 views

When making 3D model for building, is it better to split it or combine it? [closed]

As the title say, when making 3d model for building (example: school, office, etc). Used for FPS game so it must have detail and texture must be vary so it won't look like repeating/reused. Is it ...
0
votes
0answers
27 views

Tweening back from arbitrary 3D rotation in javascript

I'm using a 3D javascript library to rotate the vertex of a 3D object with a classic 3x3 matrix, to an arbitrary angle in the 3D space, as depicted in the image below. For example, a first ...
1
vote
0answers
24 views

Ericsson compression for normal and bump maps

how does ETC2 fares when compressing normal maps and bump/height maps? Since we are talking about using an algorithm created for visual fidelity, applied to vector and numerical data ⃰ I'm quite sure ...
0
votes
1answer
1k views

Isometric screen to 3D world coordinates efficiently

Been having a difficult time transforming 2D screen coordinates to 3D isometric space. This is the situation where I am working in 3D but I have an orthographic camera. Then my camera is positioned at ...
3
votes
1answer
86 views

How to calculate height of a thought line over a known spot in 3rd person view?

Assuming a player object with third-person-view is in a 3d room and the center of the screen has a dot - let's call it "cursorTarget". All I have is the position of the player, the position 5 meters ...
1
vote
1answer
49 views

How do you rotate all the objects around the camera?

If I'm correct, the way that you can "look around" in an environment is that you rotate all the objects around the camera. This is the code that I've created using JavaFX 3D. So what's the algorithm? ...
0
votes
0answers
32 views

Alternative to Loading Models into JavaFX

Here's my problem. I'm making a copyrighted game that is to be released by using the JavaFX 3D framework, and I want to import 3D models . I have heard of software indicated at the link here: ...
2
votes
2answers
1k views

Create a continuous flight path on a Bezier Curve in Unity3d

I am working on a game in which a butterfly is flying along some path. What I am trying to do currently is create a Bezier curve starting from the butterfly's position(previous curves end point) and ...
28
votes
5answers
18k views

How can I draw outlines around 3D models?

How can I draw outlines around 3D models? I'm referring to something like the effects in a recent Pokemon game, which appear to have a single-pixel outline around them:
1
vote
2answers
48 views

Where could i find 3d items in 3d points array?

I've been reading a lot but i can't find any answer, evenmore, English is not my main language so i don't even know how to ask it correctly. I'm currently working on a 3D render engine on JS and ...
2
votes
0answers
35 views

3D Zoom To Mouse Cursor accounting for Change in Camera Pitch

Overview: Simply put, I'm trying to make a zoom to cursor algorithm. This would normally be very simple, but the implementation of the camera is making it difficult. As the camera zooms in and out, ...
2
votes
0answers
45 views

Custom 3D Renderer: Frustum clipping

I have recently been toying with the idea of creating a 3D-renderer from scratch and, after looking into it, doesn't seem like such a behemoth of a task as it sounds. Last night, I was tossing and ...
3
votes
0answers
85 views

Is there a 3d game engine without a built-in physics engine? [closed]

I know about jMonkeyEngine, Ardor3D, etc. Yes, I've also heard of LWJGL and OpenGL (the both are essentially the same, though) but neither of them really suit me. I don't want to deal too much in the ...
1
vote
2answers
57 views

opengl z index changing does not zoom in

I am making a simple opengl application where I have a cube and I want to move forward to it with the glTranslate3d function, where I change the z index. One would expect the object to get bigger ...
10
votes
6answers
7k views

How to rotate an object around world aligned axes?

I have a Vector3 which has an euler angle for each axis. Usually, when I want to create a rotation matrix I will use functions such as D3DXMatrixRotationX passing the respective angle from my ...
1
vote
0answers
105 views

How can I shoot an arrow if I know the shot power and target?

I am trying to shoot an arrow at a target with a 100% success rate. Given the initial force applied to the arrow, the gravity, the location of the archer, and the location of the target, how can I do ...
6
votes
2answers
122 views

Shading Languages vs Materials in 3D editors

There are many 3d packages which are able to construct materials. Autodesk Maya, 3ds max, Houdini, etc. There are languages which are able to construct materials as well, like GLSL and Cg. How does ...
7
votes
3answers
6k views

How do I fix this weird lighting problem?

I'm making a small game in Unity, and some models are displaying very ugly shading. The shading usually looks funky along the edges between triangles. I'm pretty new to working in 3D; I bet this is ...
3
votes
2answers
98 views

How to animate a character with props in Blender and then have these props modifiable in Unity3D?

I have created a fully rigged and fully animated humanoid model in Blender with rigging based on Unity's Mecanim standards for humanoid models. Now, I want to create custom animation for it in ...
6
votes
2answers
1k views

Vertex data split into separate buffers or one one structure?

Is it better to have all vertex data in one structure like this: class MyVertex { int x,y,z; int u,v; int normalx, normaly, normalz; } Or to have each component (location, normal, texture ...
5
votes
2answers
897 views

If I project a sphere in 3D will it be a circle?

Assuming I have infinite vertices to represent the sphere, if I project the sphere from any position/scale in 3D to 2D, will it be a circle? I know it will not be a circle on the screen, because of ...
1
vote
1answer
30 views

Unity object stuck where it shouldn't

Here's the thing. I am making a 3D top-down game about cars on the road. Right now I have different-colored cuboids representing cars. They are position-locked in Y and rotation-locked on all three ...