slerp e lerp

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Suggestion imprementação Lerp and slerp.

vec3.lerp = function(vec, vec2, lerp, dest){
dest[0] = vec[0] + lerp * (vec2[0] - vec[0]);
dest[1] = vec[1] + lerp * (vec2[1] - vec[1]);
dest[2] = vec[2] + lerp * (vec2[2] - vec[2]);
}

e 

quat4.slerp = function(quat, quat2, lerp, dest){
var epsilon = 1.0;

var dot = quat[0]*quat2[0] + quat[1]*quat2[1] + quat[2]*quat2[2] + 
quat[3]*quat2[3];
if (dot < 0.0) epsilon = -1.0;

dest[0] = 1.0 - lerp * quat[0] + epision * lerp * quat2[0];
dest[1] = 1.0 - lerp * quat[1] + epision * lerp * quat2[1];
dest[2] = 1.0 - lerp * quat[2] + epision * lerp * quat2[2];
dest[3] = 1.0 - lerp * quat[3] + epision * lerp * quat2[3];
}

Original issue reported on code.google.com by denis.ra...@gmail.com on 9 Nov 2010 at 4:23

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Suggestion: caching epsilon * lerp.

Original comment by danielhe...@gmail.com on 24 Dec 2010 at 12:49

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Implemented in next release

Original comment by Tojiro@gmail.com on 27 Feb 2011 at 4:54

• Changed state: Started

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Original comment by Tojiro@gmail.com on 27 Feb 2011 at 6:18

• Changed state: Fixed