Refers to games or art assets built in a three-dimensional space, where all positions have X, Y and Z coordinates.

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1answer
14 views

Problems with texture orientation in space

I am currently drawing texture in 3D space and have some problems with it's orientation. I'd like me textures always to be oriented with front face to user. My desirable result looks like ...
3
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3answers
111 views

How can I create straight, glowing lines?

What techniques are used in this style? What steps would be required to recreate it? (Screenshot of this app: https://play.google.com/store/apps/details?id=com.dkeesto.holographlw)
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0answers
26 views

3D mobile game development [on hold]

I am not a developer or programmer and, I am planning an educative project that will involve having students to develop a cross-platform, 3D mobile game, similar to the SimCity concept. I need to ...
-2
votes
1answer
39 views

Thoughts on selecting a 3d game-engine [on hold]

I have programmed lots of simple 2d games, and I would like to get into more advanced and 3d gaming. I want an engine that is Free (or a free version) Powerful Easy to learn The three that stand ...
1
vote
1answer
47 views

Align tetrahedrons

I'm currently generating tetrahedron meshes in Unity When a player clicks the side of a mesh, a new one spawns aligned with it, like this. I'm not sure how nor can I find any information on ...
-1
votes
0answers
30 views

Is drawing 3D graphics with AWT even worth it? [on hold]

I'm trying to build a rasterizer with AWT just for the heck of it. Depending on how I make it, it could be quite fast or quite slow. I don't want to use OpenGL or anything like that for the sake of ...
1
vote
0answers
21 views

XNA HLSL UV Mapping

I was testing my hlsl lighting shader, I've copied it from a tutorial and it works perfectly, but all the meshes in the model needs to have texture coordinate, I guess this is because this part: ...
-1
votes
0answers
13 views

Camera arcball rotation [on hold]

I just finished up to implement my arcball rotation algorithm, my doubt, is that when I apply the arcball rotation to the camera vectors (vpn and vup), I have to put vup's x coord to 0 after that ...
0
votes
1answer
90 views

How do I find the angle between two 3D angles represented in this form?

I have two 3D angles, represented by [a1,a2] [a1,a2] where the a2 is < 180. My coordinates are represented as [X,Y,Z], where X,Y,Z are 64 bit ints (longs in my lang). My direction angles are ...
0
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0answers
37 views

Best Way to Create Your Own Game Props? [closed]

I'm a indie-game programmer by profession, so I'm very poor with 3d modelling stuff. I'm using mixamo's fuse for character creation and animate them. But is there any replacement to FUSE for creating ...
4
votes
1answer
352 views

What is deferred lighting?

There is plenty of information on what deferred rendering is but there is a lack when it comes to deferred lighting and the information that there is there is not clear. My question is simple, what ...
0
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0answers
8 views

Maya shatter collision without interpenetration

I'm a newbie in Maya and after days of Googling I still cannot find the answer to my question. I'm making a solid shatter in Maya, as expected, the rigidbodies interpenetrate with each other. And the ...
0
votes
1answer
76 views

Surface creation algorithm using points cloud

I am looking for a realtime algorithm to create a 2D mesh using points. But I am quite confused. It seems that Delaunay triangulation can help me create mesh using point clouds, but Meta-balls seems ...
0
votes
2answers
61 views

A*Pathfinding lose target after spawning from script?

I have been using A*Path finding to enable object tracking. It works fine if I have both objects on the scene at the same time. However, if I were to use a script to spawn the seeking object ...
0
votes
1answer
79 views

Find world matrix

I'm making my first 3D-game with XNA (MonoGame) and have come to a point where I wish to add a crosshair for the player. To do this I need the on-screen coordinates of the location where my fighter ...
0
votes
0answers
54 views

Why can I not change a material's color in Unity?

I tried setting the material color at runtime: gameObject.renderer.material.color = Color.black; The inspector shows the new color, but the gameview still shows the old one. The object I am trying ...
0
votes
0answers
101 views

How do I structure my models for 3D animation?

I have a question about implementing a 3D animation system in my engine. The following is how I am attempting to model the render / animation systems. (Note: I am using Haskell for the pseudo-code ...
0
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0answers
20 views

how do I know what blocks to draw in a lightweight Minecraft style game [duplicate]

I am creating a lightweight minecraft style test game in C++ using opengl es. I have come upon a problem while planning it though - what is the most efficient way to render blocks? I know about back ...
2
votes
1answer
69 views

Work flow for modelling a city(open world)

This seems like a massive task, do each individual building/object have to be modeled individually. If so are the model imported into the world editor and places accordingly. Or are other techniques ...
1
vote
0answers
53 views

Is it possible to reverse perspective projection with simple scale and translate? [duplicate]

Basically I'm asking this question (which seems to have gone un-answered): How to do perspective projection “parallax” but without changing the scale or offset of objects? I'm using perspective ...
0
votes
2answers
103 views

Why do we say things are rotated around the z-axis in a space graph?

I've embarked on a journey of game development. I need to learn lots of 3D terminology, since I want to make 3D games. I learned that X is to the right, Y is up, and Z is towards you. Then why when a ...
0
votes
1answer
137 views

How to approach in-game character creation system alike Sims

I would like to implement an in-game character creation similar to the Wii/Mii system or The Sims using Blender and Unity. In what ways is this possible, other than (or in conjunction with) using ...
0
votes
1answer
37 views

Can I export animated models from Unity? Into what formats?

I have an animated 3D model from the Unity Asset Store that I would like a new animator to touch up (the license allows this). But they need it in a format they can use (in Maya or... something ...
2
votes
1answer
140 views

How can I achieve a bullet tracing effect similar to the one in Planetside?

I've noticed that bullet tracers in Planetside 2 don't show up close -- every time I see them, it came from a barrel a ways away. I don't believe Planetside traces every bullet either, because then ...
4
votes
3answers
200 views

How do I resolve a sphere-triangle collision in a given direction?

I am trying my hand at game physics. I understand that the basic way to pull back a sphere when it collided is to negate the penetration distance: // If collided... // `distance`: distance form ...
0
votes
0answers
27 views

JMonkey scrolling 3D text

I need to make a scrolling 3D text, which is not a gui. I have a 3d box display over which I should render a long scrolling text. I can render and move text, but how do I cut/make invisible the part ...
1
vote
2answers
71 views

Should I shade models before or after importing them into Unity?

Is it better to shade a model inside the 3D modeling software or inside Unity? As an example, if I need to use a transparent model, should it be made transparent inside the modeling application or ...
0
votes
1answer
36 views

Picking a local origin as the centroid of given three points in 3D

Given three points non-collinear P, Q, R in 3D, I need a generic method to generate x', y', z' unit vectors that behave like origin of local coordinate system. x' and y' vectos should be on the plane ...
2
votes
0answers
72 views

How to implement translation, scale, rotation gizmos for manipulating 3D object's transforms?

I am in the process of developing a basic 3D editor. It uses OpenGL for rendering a 3D world. Right now my scene is just a few boxes of different sizes and I am at the stage where I want to be able to ...
0
votes
1answer
112 views

How do you create a 2d world then view it in 3d?

I have been learning OpenGL for a while now and have a pretty good understanding so far. What I would like to know is if I create a 2D game in Orthographic Projection, is it possible to switch to a ...
0
votes
0answers
41 views

How can I find the collision response between a moving sphere and cube?

I'm implementing my own algorithm for sphere and cube collision response. So far I'm able to only test if both of them overlap. My problem is: A cube is rotating around its axes i.e x and z axes. And ...
0
votes
0answers
59 views

Closest distance from 3D point to vector line

First let's have a look at my little drawing: I have an origin point p1 defined by x, y and z co-ordinates, and a vector v given by x, y and z magnitude. I also have an arbitrary point, p2, given ...
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2answers
172 views

Simulating 3D height in 2D scene (also shadows)

I recently stumbled across this http://vimeo.com/99118680 video and was stunned by the beautiful painted art and colors. But mostly I couldn't believe how everything appeared to have three dimensions ...
1
vote
2answers
95 views

Find point in 3D plane

I have four points in a 3D space, example: (0,0,1) (1,0,1) (1,0,2) (0,0,2) Then I have a 2D position on that square plane: x = 0.5 y = 0.5 I need to find out the 3D space point of that position in ...
1
vote
1answer
111 views

Resolution independent game world in 3D

I'm developing a game similar to Don't Starve - 2D billboards in a 3D world. Now I have encountered a problem with resolutions. I want the player to be able to change resolution, but I don't want to ...
2
votes
1answer
187 views

Procedural terrain generation

Currently I have a procedurally generated planet using multiple octaves of perlin noise. The thing is, that I don't generate heightmap, but rather get the values of perlin function and apply them ...
1
vote
1answer
45 views

XNA Library DrawPrimitives throwing primitiveCount error

I downloaded the project from here http://silverlight.bayprince.com/tutorials.php?tutorial=13 and tried adding a new OBJ file with a few thousand vertices listed. The classic teapot works but when I ...
1
vote
0answers
61 views

How would I warp a mesh with code?

I recently asked a question about putting a camera at the head of a 3D human model here and it worked out rather well and whatnot, but there is still a problem that bothers me: How would I ...
1
vote
2answers
207 views

How to disable play automatically on animation in Unity3d 4.5.1

Where is the option to disable the 'Play Automatically' function for animations in Unity3d 4.5.1. In previous versions, there was a button under the Animation tab to disable the play automatically: ...
1
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0answers
24 views

LibGDX mesh silhouettes

How could I find out the silhouette edges of a mesh in libgdx? More specifically, how could I produce shadow volume geometry using the Mesh class of libgdx?
5
votes
1answer
136 views

Self colliding cloth physics

I've previously simulated cloth using Verlet integration but couldn't successfully get the cloth to collide with itself in an efficient way. The reason being is because I used a brute force algorithm ...
2
votes
2answers
96 views

Checking if a vector is contained inside a viewing frustum

I have a three dimensional pyramid given by four vectors a, b, c, d and want to test if a given vector x is inside that region or not. Here is an image: A related question can be found here: 2D ...
0
votes
0answers
18 views

Shader: vertex manipulation basics [duplicate]

I know this is a very noob question, but please bear with me I'm very new to graphics programming (I come from an iOS and web app development background). When you modify the position of a vertex ...
0
votes
1answer
67 views

Volumetric Lighting projects models

I've been trying to implement Volumetric Lighting using the code from this tutorial but I've run into some issues, even after basically copypasting the shader code. I'll just show you what's going ...
1
vote
1answer
120 views

Should all primitives be GL_TRIANGLES in order to create large, unified batches?

Optimizing modern OpenGL relies on aggressive batching, which is done by calls like glMultiDrawElementsIndirect. Although glMultiDrawElementsIndirect can render a large number of different meshes, it ...
1
vote
2answers
79 views

How to determine the visibility of a single vertex, given a viewpoint?

I have a 3D triangle mesh, and I want to know, given a viewpoint (defined by a model, view and projection matrix), if a certain vertex is visible or not. My approach was to render the mesh using ...
0
votes
1answer
37 views

Should I avoid rescaling models when rendering?

I am quite new to game development and currently developing a simple 3D game with MonoGame and Blender. The game is basically a 3D version of Pong. At first I developed the models at a constant size ...
0
votes
0answers
19 views

Manual occlusion culling with glDrawElements [duplicate]

How should I go about doing occlusion culling with glDrawElements? I am dealing with voxel-like terrain. I want to avoid drawing the faces that are facing another block. I just don't know how to ...
20
votes
3answers
2k views

Are there 3D projections other than orthographic and perspective? [closed]

The question is pretty much in the title. Are there notable 3D projections other than orthographic and perspective that could be used in a 3D system such as OpenGL? In particular, are there any that ...
1
vote
1answer
114 views

Tile textures on 3D models. HLSL shader code maybe?

I'm making a game in C# with XNA. I'm now applying textures to models. However if I change the scale of the model, the texture stretches with it. How can I make the texture tile over the model instead ...