diff --git a/src/DivaGL/data_test/rob_osage_test.cpp b/src/DivaGL/data_test/rob_osage_test.cpp
index 0eb06b2..0e81bbe 100644
--- a/src/DivaGL/data_test/rob_osage_test.cpp
+++ b/src/DivaGL/data_test/rob_osage_test.cpp
@@ -1200,12 +1200,12 @@ void RobOsageTest::disp_line() {
         const color4u8 line_color = i == ex_node ? color_white : color_dark_cyan;
         const color4u8 rect_color = i == ex_node ? color_red : color_dark_red;
 
-        RobOsageNode* j_begin = i->rob.nodes.data() + 1;
-        RobOsageNode* j_end = i->rob.nodes.data() + i->rob.nodes.size();
-        for (RobOsageNode* j = j_begin; j != j_end; j++)
+        const RobOsageNode* j_begin = i->rob.nodes.data() + 1;
+        const RobOsageNode* j_end = i->rob.nodes.data() + i->rob.nodes.size();
+        for (const RobOsageNode* j = j_begin; j != j_end; j++)
             spr::put_sprite_3d_line(j[-1].pos, j[0].pos, line_color);
 
-        for (RobOsageNode* j = j_begin; j != j_end; j++)
+        for (const RobOsageNode* j = j_begin; j != j_end; j++)
             spr::put_sprite_rect({ spr::proj_sprite_3d_line(j->pos, true) - 2.0f, 4.0f },
                 RESOLUTION_MODE_MAX, spr::SPR_PRIO_DEBUG, rect_color, 0);
 
@@ -1220,36 +1220,22 @@ void RobOsageTest::disp_line() {
             continue;
 
 
-        int64_t root_count = i->rob.root_count;
-        CLOTHNode* j_begin = i->rob.nodes.data() + root_count;
-        CLOTHNode* j_end = i->rob.nodes.data() + i->rob.nodes.size();
-
         const color4u8 color_line = i == ex_node ? color_red : color_dark_red;
 
-        const color4u8 color_x = i == ex_node ? color_white : color_grey;
-        const color4u8 color_y = i == ex_node ? color_cyan : color_dark_cyan;
-        const color4u8 color_z = i == ex_node ? color_green : color_dark_green;
+        const color4u8 color_tangent = i == ex_node ? color_green : color_dark_green;
+        const color4u8 color_binormal = i == ex_node ? color_cyan : color_dark_cyan;
+        const color4u8 color_normal = i == ex_node ? color_white : color_grey;
 
-        for (CLOTHNode* j = j_begin; j != j_end; j++) {
-            spr::put_sprite_3d_line(j[-root_count].pos, j[0].pos, color_line);
-            if ((j - j_begin) % root_count)
-                spr::put_sprite_3d_line(j[-1].pos, j[0].pos, color_line);
-        }
+        const CLOTHNode* nodes = i->rob.nodes.data();
+        for (const CLOTHLine& j : i->rob.lines)
+            spr::put_sprite_3d_line(nodes[j.idx[0]].pos, nodes[j.idx[1]].pos, color_line);
 
-        for (CLOTHNode* j = j_begin; j != j_end; j++) {
-            const vec3 dir = vec3::normalize(j[0].pos - j[-root_count].pos);
-            const vec3 up = { 0.0f, 1.0f, 0.0f };
-            vec3 axis;
-            float_t angle;
-            Glitter::axis_angle_from_vectors(&axis, &angle, &up, &dir);
-
-            mat4 mat = mat4_identity;
-            mat4_mul_rotation(&mat, &axis, angle, &mat);
-            mat4_scale_rot(&mat, 0.025f, &mat);
-            mat4_set_translation(&mat, &j->pos);
-            mat4_transpose(&mat, &mat);
-
-            spr::put_cross(&mat, color_x, color_y, color_z);
+        const CLOTHNode* j_begin = i->rob.nodes.data() + i->rob.root_count;
+        const CLOTHNode* j_end = i->rob.nodes.data() + i->rob.nodes.size();
+        for (const CLOTHNode* j = j_begin; j != j_end; j++) {
+            spr::put_sprite_3d_line(j->pos, j->tangent * 0.05f + j->pos, color_tangent);
+            spr::put_sprite_3d_line(j->pos, j->binormal * 0.05f + j->pos, color_binormal);
+            spr::put_sprite_3d_line(j->pos, j->normal * 0.05f + j->pos, color_normal);
         }
     }
 
diff --git a/src/DivaGL/rob/rob.hpp b/src/DivaGL/rob/rob.hpp
index 94a5ce9..3cb7cee 100644
--- a/src/DivaGL/rob/rob.hpp
+++ b/src/DivaGL/rob/rob.hpp
@@ -1162,13 +1162,12 @@ struct CLOTHNode {
 
 static_assert(sizeof(CLOTHNode) == 0xF0, "\"CLOTHNode\" struct should have a size of 0xF0");
 
-struct struc_341 {
-    size_t field_0;
-    size_t field_8;
+struct CLOTHLine {
+    size_t idx[2];
     float_t length;
 };
 
-static_assert(sizeof(struc_341) == 0x18, "\"struc_341\" struct should have a size of 0x18");
+static_assert(sizeof(CLOTHLine) == 0x18, "\"CLOTHLine\" struct should have a size of 0x18");
 
 class CLOTH;
 
@@ -1200,7 +1199,7 @@ public:
     float_t field_44;
     bool set_external_force;
     vec3 external_force;
-    prj::vector<struc_341> field_58;
+    prj::vector<CLOTHLine> lines;
     skin_param* skin_param_ptr;
     skin_param skin_param;
     OsageCollision::Work coli[64];