Reflect a vector in relation to another vector
Hey,
I'm stuck with a geometrical problem. I have vector A and vector V. I need to find vector A' that is the reflection of A in relation to V (see pic).
I'm stuck with a geometrical problem. I have vector A and vector V. I need to find vector A' that is the reflection of A in relation to V (see pic).
respect,
pk
iFrog is coming.
in 2D or 3D space?
2D space.
respect,
pk
iFrog is coming.
This one's pretty simple:
Code:
float Vector2_dot(Vector2 vector1, Vector2 vector2) {
return vector1.x * vector2.x + vector1.y * vector2.y;
}
Vector2 Vector2_reflect(Vector2 vector, Vector2 normal) {
Vector2 result;
float dot;
dot = Vector2_dot(vector, normal);
result.x = 2 * dot * normal.x  vector.x;
result.y = 2 * dot * normal.y  vector.y;
return result;
}
Awesome. Just trying it out (too many side quests).
...
Hey it's working !!! Thanks.
...
Hey it's working !!! Thanks.
respect,
pk
iFrog is coming.
Possibly Related Threads...
Thread:  Author  Replies:  Views:  Last Post  
Vector shapes  Miglu  16  12,634 
Sep 22, 2010 07:52 AM Last Post: Miglu 

Signed Distance Fields for Alpha Tested Magnification of Vector Textures  maximile  2  7,997 
Mar 29, 2010 10:59 AM Last Post: Skorche 

New to objc and have no idea where to start: vector graphics  billybob  1  3,507 
May 27, 2009 11:17 AM Last Post: billybob 

Vector graphics rendering: Best approach?  Luipaard  5  6,754 
Sep 28, 2007 08:40 AM Last Post: TomorrowPlusX 

Vector (Normal) Map blending operations?  kelvin  10  9,352 
Mar 16, 2007 04:31 PM Last Post: OneSadCookie 