bool hit_sphere(const vec3& center, float radius, const ray& r){
vec3 oc = r.origin() - center;
float a = dot(r.direction(), r.direction());
float b = 2.0 * dot(oc, r.direction());
float c = dot(oc,oc) - radius*radius;
float discriminant = b*b - 4*a*c;
return (discriminant>0);
}
| Code Example |
|---|
| Cpp :: char ascii c++ |
| Cpp :: docker.io : Depends: containerd (= 1.2.6-0ubuntu1~) E: Unable to correct problems, you have held broken packages |
| Cpp :: double to int c++ |
| Cpp :: arduino funktion |
| Cpp :: c++ tokenize string |
| Cpp :: ubuntu dotnet core install |
| Cpp :: c++ reference |
| Cpp :: ViewController import |
| Cpp :: remove decimal c++ |
| Cpp :: OpenGL C++ Version |
| Cpp :: size of array |
| Cpp :: c++ Sum of all the factors of a number |
| Cpp :: how to find the sum of a vector c++ |
| Cpp :: 2d array c++ |
| Cpp :: c++ output |
| Cpp :: sort vector struct c++ |
| Cpp :: c++ string to int |
| Cpp :: How to write into files in C++ |
| Cpp :: c++ if else |
| Cpp :: c++ get line |
| Cpp :: c++ get the line which call a function |
| Cpp :: c++ 14 for sublime windoes build system |
| Cpp :: iterate over map c++ |
| Cpp :: descending order c++ |
| Cpp :: how to use custom array in c++ |
| Cpp :: insert in vector |
| Cpp :: print hello world c++ |
| Cpp :: set size in c++ |
| Cpp :: grep xargs sed |
| Cpp :: exception handling class c++ |