added Mat4 Mat3 CpoyFrom methods

goki · May 16, 2020 · ef9e6ec · ef9e6ec
1 parent f305cac
commit ef9e6ec
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Showing 2 changed files with 12 additions and 0 deletions.
diff --git a/matrix3.go b/matrix3.go
@@ -73,6 +73,12 @@ func (m *Mat3) SetZero() {
 	)
 }
 
+// CopyFrom copies from source matrix into this matrix
+// (a regular = assign does not copy data, just the pointer!)
+func (m *Mat3) CopyFrom(src *Mat3) {
+	copy(m[:], src[:])
+}
+
 // MulMatrices sets ths matrix as matrix multiplication a by b (i.e., b*a).
 func (m *Mat3) MulMatrices(a, b *Mat3) {
 	a11 := a[0]

diff --git a/matrix4.go b/matrix4.go
@@ -83,6 +83,12 @@ func (m *Mat4) SetZero() {
 	)
 }
 
+// CopyFrom copies from source matrix into this matrix
+// (a regular = assign does not copy data, just the pointer!)
+func (m *Mat4) CopyFrom(src *Mat4) {
+	copy(m[:], src[:])
+}
+
 // CopyPos copies the position elements of the src matrix into this one.
 func (m *Mat4) CopyPos(src *Mat4) {
 	m[12] = src[12]