Invert X and Y axes to fix them

Co-authored-by: sigonasr2 <sigonasr2@gmail.com>

main.cpp

@@ -334,10 +334,10 @@ public:
 			vCamera=Vector_Sub(vCamera,vForward);
 		}
 		if (GetKey(olc::A).bHeld) {
-			fYaw+=2*fElapsedTime;
+			fYaw-=2*fElapsedTime;
 		}
 		if (GetKey(olc::D).bHeld) {
-			fYaw-=2*fElapsedTime;
+			fYaw+=2*fElapsedTime;
 		}
 
 		// Set up rotation matrices
@@ -380,7 +380,7 @@ public:
 			vec3d vCameraRay=Vector_Sub(triTransformed.p[0],vCamera);
 
 			if (Vector_DotProduct(normal,vCameraRay)<0) {
-				vec3d light_dir=Vector_Mul(vLookDir, -1);
+				vec3d light_dir=Vector_Mul(vCameraRay,-1);
 				light_dir=Vector_Normalise(light_dir);
 
 				float dp = std::max(0.1f,Vector_DotProduct(light_dir,normal));
@@ -401,6 +401,13 @@ public:
 				triProjected.p[2]=Vector_Div(triProjected.p[2],triProjected.p[2].w);
 				triProjected.col=triTransformed.col;
 
+				triProjected.p[0].x*=-1.0f;
+				triProjected.p[1].x*=-1.0f;
+				triProjected.p[2].x*=-1.0f;
+				triProjected.p[0].y*=-1.0f;
+				triProjected.p[1].y*=-1.0f;
+				triProjected.p[2].y*=-1.0f;
+
 				// Scale into view
 				vec3d vOffsetView={1,1,0};
 				triProjected.p[0] = Vector_Add(triProjected.p[0],vOffsetView);