DEBUGGERY

games/devtest/mods/testentities/visuals.lua

@@ -111,7 +111,7 @@ core.register_entity("testentities:cool_guy", {
 		},
 	},
 	on_activate = function(self)
-		self.object:set_animation({x = 0, y = 29}, 30, 0, true)
+		self.object:set_animation({x = 15, y = 15}, 0, 0, true)
 	end,
 })
 

irr/include/matrix4.h

@@ -12,6 +12,8 @@
 #include "aabbox3d.h"
 #include "rect.h"
 #include <cassert>
+#include "IrrCompileConfig.h" // for IRRLICHT_API
+#include <ostream>
 
 namespace irr
 {
@@ -87,6 +89,20 @@ public:
 	{
 		return M[index];
 	}
+	//! Debug print the matrix
+	friend std::ostream& operator<<(std::ostream& os, const CMatrix4<T>& matrix)
+	{
+		os << "Matrix4:" << std::endl;
+		for (int row = 0; row < 4; ++row)
+		{
+			for (int col = 0; col < 4; ++col)
+			{
+				os << matrix(row, col) << " ";
+			}
+			os << std::endl;
+		}
+		return os;
+	}
 
 	//! Simple operator for linearly accessing every element of the matrix.
 	const T &operator[](u32 index) const { return M[index]; }

irr/src/SkinnedMesh.cpp

@@ -17,6 +17,7 @@
 #include <cassert>
 #include <cstddef>
 #include <variant>
+#include <iostream>
 #include <vector>
 #include <cassert>
 
@@ -467,6 +468,7 @@ SkinnedMesh *SkinnedMeshBuilder::finalize()
 		else
 		 	matrices.push_back(std::get<core::Transform>(joint->transform).buildMatrix());
 	}
+	auto local_matrices = matrices;
 	calculateGlobalMatrices(matrices);
 
 	
@@ -481,6 +483,10 @@ SkinnedMesh *SkinnedMeshBuilder::finalize()
 			SSkinMeshBuffer *Buffer = (*SkinningBuffers)[attachedMeshIdx];
 			Buffer->Transformation = matrices[i];
 		}
+		std::cout << "Joint Name: " << joint->Name.value_or("unnamed") << std::endl;
+		std::cout << "Local: " << local_matrices[i] << std::endl;
+		std::cout << "Global: " << matrices[i] << std::endl;
+		std::cout << "Global Inverse: " << joint->GlobalInversedMatrix.value() << std::endl;
 	}
 
 	recalculateBaseBoundingBoxes();