Added Matrix.LerpToRef #3866

dist/preview release/what's new.md

@@ -19,6 +19,7 @@
 ## Updates
 
 - Tons of functions and classes received the code comments they deserved (All the community)
+- Added support for 16bits TGA ([deltakosh](https://github.com/deltakosh))
 - New `AnimationPropertiesOverride` class used to simplify setting animation properties on child animations. [Documentation](http://doc.babylonjs.com/babylon101/animations#overriding-properties) ([deltakosh](https://github.com/deltakosh))
 - New `Texture.UseSerializedUrlIfAny` static property to let textures serialize complete URL instead of using side by side loading ([deltakosh](https://github.com/deltakosh))
 - Added `particleSystem.reset()` to clear a particle system ([deltakosh](https://github.com/deltakosh))

src/Math/babylon.math.ts

@@ -4369,17 +4369,34 @@
                 0.0, 0.0, 1.0, 0.0,
                 x, y, z, 1.0, result);
         }
+
         /**
-         * Returns a new Matrix whose values are the interpolated values for "gradien" (float) between the ones of the matrices "startValue" and "endValue".
+         * Returns a new Matrix whose values are the interpolated values for "gradient" (float) between the ones of the matrices "startValue" and "endValue".
+         * @param startValue defines the start value
+         * @param endValue defines the end value
+         * @param gradient defines the gradient factor
          */
         public static Lerp(startValue: Matrix, endValue: Matrix, gradient: number): Matrix {
             var result = Matrix.Zero();
+            Matrix.LerpToRef(startValue, endValue, gradient, result);
+            return result;
+        }
+
+        /**
+         * Set the passed matrix "result" as the interpolated values for "gradient" (float) between the ones of the matrices "startValue" and "endValue".
+         * @param startValue defines the start value
+         * @param endValue defines the end value
+         * @param gradient defines the gradient factor
+         * @param result defines the Matrix object where to store data
+         */
+        public static LerpToRef(startValue: Matrix, endValue: Matrix, gradient: number, result: Matrix): Matrix {
+            var result = Matrix.Zero();
             for (var index = 0; index < 16; index++) {
                 result.m[index] = startValue.m[index] * (1.0 - gradient) + endValue.m[index] * gradient;
             }
             result._markAsUpdated();
             return result;
-        }
+        }        
 
         /**
          * Returns a new Matrix whose values are computed by :