Added some comments

src/rmodels.c

@@ -4966,6 +4966,10 @@ static Model LoadGLTF(const char *fileName)
                             model.meshes[meshIndex].boneIds = RL_CALLOC(model.meshes[meshIndex].vertexCount*4, sizeof(unsigned char));
 
                             // Load 4 components of unsigned char data type into mesh.boneIds
+                            // TODO: It seems LOAD_ATTRIBUTE() macro does not work as expected in some cases,
+                            // for cgltf_attribute_type_joints we have:
+                            //   - data.meshes[0] (256 vertices)
+                            //   - 256 values, provided as cgltf_type_vec4 of bytes (4 byte per joint, stride 4)
                             LOAD_ATTRIBUTE(attribute, 4, unsigned char, model.meshes[meshIndex].boneIds)
                         }
                         else TRACELOG(LOG_WARNING, "MODEL: [%s] Joint attribute data format not supported, use vec4 u8", fileName);
@@ -4980,6 +4984,9 @@ static Model LoadGLTF(const char *fileName)
                             model.meshes[meshIndex].boneWeights = RL_CALLOC(model.meshes[meshIndex].vertexCount*4, sizeof(float));
 
                             // Load 4 components of float data type into mesh.boneWeights
+                            // for cgltf_attribute_type_weights we have:
+                            //   - data.meshes[0] (256 vertices)
+                            //   - 256 values, provided as cgltf_type_vec4 of float (4 byte per joint, stride 16)
                             LOAD_ATTRIBUTE(attribute, 4, float, model.meshes[meshIndex].boneWeights)
                         }
                         else TRACELOG(LOG_WARNING, "MODEL: [%s] Joint weight attribute data format not supported, use vec4 float", fileName);