summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--src/jogl/classes/com/jogamp/opengl/math/VectorUtil.java38
1 files changed, 33 insertions, 5 deletions
diff --git a/src/jogl/classes/com/jogamp/opengl/math/VectorUtil.java b/src/jogl/classes/com/jogamp/opengl/math/VectorUtil.java
index 508f1aafd..e1e797088 100644
--- a/src/jogl/classes/com/jogamp/opengl/math/VectorUtil.java
+++ b/src/jogl/classes/com/jogamp/opengl/math/VectorUtil.java
@@ -70,21 +70,49 @@ public class VectorUtil {
return newVector;
}
- /** Scales a vector by param
+ /** Scales a vector by param creating a new float[] for the result!
* @param vector input vector
* @param scale constant to scale by
- * @return scaled vector
+ * @return new scaled vector
+ * @deprecated Use {@link #scale(float[], float[], float)}
*/
public static float[] scale(float[] vector, float scale)
{
final float[] newVector = new float[3];
- newVector[0] = vector[0]*scale;
- newVector[1] = vector[1]*scale;
- newVector[2] = vector[2]*scale;
+ newVector[0] = vector[0] * scale;
+ newVector[1] = vector[1] * scale;
+ newVector[2] = vector[2] * scale;
return newVector;
}
+ /** Scales a vector by param using given result float[]
+ * @param result vector for the result
+ * @param vector input vector
+ * @param scale single scale constant for all vector components
+ */
+ public static float[] scale(float[] result, float[] vector, float scale)
+ {
+ result[0] = vector[0] * scale;
+ result[1] = vector[1] * scale;
+ result[2] = vector[2] * scale;
+ return result;
+ }
+
+ /** Scales a vector by param using given result float[]
+ * @param result vector for the result
+ * @param vector input vector
+ * @param scale 3 component scale constant for each vector component
+ * @return given result vector
+ */
+ public static float[] scale(float[] result, float[] vector, float[] scale)
+ {
+ result[0] = vector[0] * scale[0];
+ result[1] = vector[1] * scale[1];
+ result[2] = vector[2] * scale[2];
+ return result;
+ }
+
/** Adds to vectors
* @param v1 vector 1
* @param v2 vector 2