m4x4 identity

engine/inc/math/m4x4.hpp

@@ -20,10 +20,12 @@ class M4x4 {
  public:
   MATRIX data alignas(sizeof(float) * 16);
 
+  static M4x4 Identity;
+
   /**
-   * @param identity true = identity matrix, false = random values
+   * Create matrix with random values
    */
-  explicit M4x4(const bool& identity = true);
+  explicit M4x4();
   M4x4(const M4x4& v) { copy(this, v); }
   explicit M4x4(const float* v) { copy(this, v); }
   inline M4x4(const float& m11, const float& m12, const float& m13,
@@ -76,7 +78,7 @@ class M4x4 {
            const float& m44);
 
   void translate(const Vec4& v) {
-    M4x4 temp = M4x4(true);
+    M4x4 temp = M4x4::Identity;
     temp.translationX(v.x);
     temp.translationY(v.y);
     temp.translationZ(v.z);
@@ -84,26 +86,26 @@ class M4x4 {
   }
 
   void translateX(const float& v) {
-    M4x4 temp = M4x4(true);
+    M4x4 temp = M4x4::Identity;
     temp.translationX(v);
     cross(this->data, temp.data, this->data);
   }
 
   void translateY(const float& v) {
-    M4x4 temp = M4x4(true);
+    M4x4 temp = M4x4::Identity;
     temp.translationY(v);
     cross(this->data, temp.data, this->data);
   }
 
   void translateZ(const float& v) {
-    M4x4 temp = M4x4(true);
+    M4x4 temp = M4x4::Identity;
     temp.translationZ(v);
     cross(this->data, temp.data, this->data);
   }
 
   /** Rotate M4x4. */
   void rotate(const Vec4& v) {
-    M4x4 temp = M4x4(true);
+    M4x4 temp = M4x4::Identity;
 
     temp.rotationZ(v.z);
     cross(this->data, temp.data, this->data);
@@ -119,21 +121,21 @@ class M4x4 {
 
   /** Rotate M4x4 by X. */
   void rotateX(const float& radians) {
-    M4x4 temp = M4x4(true);
+    M4x4 temp = M4x4::Identity;
     temp.rotationX(radians);
     cross(this->data, temp.data, this->data);
   }
 
   /** Rotate M4x4 by Y. */
   void rotateY(const float& radians) {
-    M4x4 temp = M4x4(true);
+    M4x4 temp = M4x4::Identity;
     temp.rotationY(radians);
     cross(this->data, temp.data, this->data);
   }
 
   /** Rotate M4x4 by Z. */
   void rotateZ(const float& radians) {
-    M4x4 temp = M4x4(true);
+    M4x4 temp = M4x4::Identity;
     temp.rotationZ(radians);
     cross(this->data, temp.data, this->data);
   }
@@ -151,7 +153,7 @@ class M4x4 {
   void scaleZ(const float& v) { scale(Vec4(1.0F, 1.0F, v, 1.0F)); }
 
   void scale(const Vec4& v) {
-    M4x4 temp = M4x4(true);
+    M4x4 temp = M4x4::Identity;
     temp.setScale(v);
     cross(this->data, temp.data, this->data);
   }

engine/src/math/m4x4.cpp

@@ -17,10 +17,10 @@ namespace Tyra {
 
 VECTOR M4x4::upVec = {0.0F, 1.0F, 0.0F, 1.0F};
 VECTOR M4x4::viewVec = {0.0F, 0.0F, 0.0F, 1.0F};
+M4x4 M4x4::Identity = M4x4(1.0F, 0.0F, 0.0F, 0.0F, 0.0F, 1.0F, 0.0F, 0.0F, 0.0F,
+                           0.0F, 1.0F, 0.0F, 0.0F, 0.0F, 0.0F, 1.0F);
 
-M4x4::M4x4(const bool& t_identity) {
-  if (t_identity) identity();
-}
+M4x4::M4x4() {}
 
 void M4x4::copy(M4x4* out, const float* in) {
   asm volatile(
@@ -131,7 +131,7 @@ M4x4 M4x4::perspective(const float& fov, const float& width,
 }
 
 M4x4 M4x4::lookAt(const Vec4& position, const Vec4& target) {
-  M4x4 res(true);
+  M4x4 res = M4x4::Identity;
   lookAt(&res, position, target);
   return res;
 }

engine/src/renderer/3d/mesh/mesh.cpp

@@ -54,6 +54,9 @@ Mesh::~Mesh() {
 void Mesh::init() {
   id = rand() % 1000000;
   materialsCount = 0;
+  translation = M4x4::Identity;
+  rotation = M4x4::Identity;
+  scale = M4x4::Identity;
   translation.translate(Vec4(0.0F, 0.0F, 0.0F, 1.0F));
 }
 

tutorials/01-hello/src/tutorial_01.cpp

@@ -112,6 +112,10 @@ void Tutorial01 ::init() {
     u32 column = i % columns;
     u32 row = i / rows;
 
+    translations[i].identity();
+    rotations[i].identity();
+    scales[i].identity();
+
     translations[i].translateX(row * offset - center);
     translations[i].translateY(column * offset - center);
     translations[i].translateZ(-10.0F);