Top "3d" questions

3D computer graphics are graphics that use a three-dimensional representation of geometric data stored in the computer for the purposes of performing calculations and rendering 2D images.

Set of efficient 3D intersection algorithms

Anyone knows a source, website where I can get some good implementations of 3D intersection algorithms, like intersection of sphere …

c++ math graphics 3d intersection
Preferred 3d model format of THREE.JS

What is the preferred 3d model format of THREE.JS which is widely used by 3d modelling softwares (can export …

3d file-format three.js
Why are quaternions used for rotations?

I'm a physicist, and have been learning some programming, and have come across a lot of people using quaternions for …

matrix 3d quaternions rotational-matrices
Java 3D plot library?

Ok so I'm doing a project on visualization of some financial stuff in java, the main objective is to take …

java 3d
How to calculate the normal matrix?

I have some trouble with my normal matrix. vs.glsl #version 440 in vec3 vPosition; in vec3 vNormal; out vec4 eyeCordFs; …

opengl graphics 3d glsl
How to build perspective projection matrix (no API)

I develop a simple 3D engine (Without any use of API), successfully transformed my scene into world and view space …

math graphics 3d transformation projection
How does 3D collision / object detection work?

I'v always wondered this. In a game like GTA where there are 10s of thousands of objects, how does the …

algorithm data-structures 3d collision-detection
How to calculate inverse kinematics

I want to know how to calculate rotation angles using inverse kinematics. I am planning on using this for real …

math 3d computational-geometry inverse-kinematics
Generating vertices for a sphere

In the DirectX mobile lighting sample, a cylinder is generated in the following manner: for( DWORD i=0; i<50; i++ ) { …

c++ 3d directx
How do I find the orthogonal projection of a point onto a plane

Lets say I have point (x,y,z) and plane with point (a,b,c) and normal (d,e,f). …

math 3d