diff --git a/common/mesh.cc b/common/mesh.cc
index 4aec08c8..f7555680 100644
--- a/common/mesh.cc
+++ b/common/mesh.cc
@@ -25,7 +25,7 @@
 
 using namespace std;
 
-mesh_t buildMesh(const vector<vector<glm::vec3>> &faces)
+mesh_t buildMesh(const vector<vector<qvec3f>> &faces)
 {
     // FIXME: this is ugly
     using pos_t = tuple<float, float, float>;
@@ -55,11 +55,11 @@ mesh_t buildMesh(const vector<vector<glm::vec3>> &faces)
     }
     
     // convert posToVertIndex to a vector
-    vector<glm::vec3> vertsVec;
+    vector<qvec3f> vertsVec;
     vertsVec.resize(posToVertIndex.size());
     for (const auto &posIndex : posToVertIndex) {
         const pos_t &pos = posIndex.first;
-        vertsVec.at(posIndex.second) = glm::vec3(std::get<0>(pos), std::get<1>(pos), std::get<2>(pos));
+        vertsVec.at(posIndex.second) = qvec3f(std::get<0>(pos), std::get<1>(pos), std::get<2>(pos));
     }
     
     mesh_t res;
@@ -68,13 +68,13 @@ mesh_t buildMesh(const vector<vector<glm::vec3>> &faces)
     return res;
 }
 
-std::vector<std::vector<glm::vec3>> meshToFaces(const mesh_t &mesh)
+std::vector<std::vector<qvec3f>> meshToFaces(const mesh_t &mesh)
 {
-    std::vector<std::vector<glm::vec3>> res;
+    std::vector<std::vector<qvec3f>> res;
     for (const auto &meshFace : mesh.faces) {
-        std::vector<glm::vec3> points;
+        std::vector<qvec3f> points;
         for (int vertIndex : meshFace) {
-            const glm::vec3 point = mesh.verts.at(vertIndex);
+            const qvec3f point = mesh.verts.at(vertIndex);
             points.push_back(point);
         }
         res.push_back(points);
diff --git a/include/common/mesh.hh b/include/common/mesh.hh
index e7351f8a..c797cb5e 100644
--- a/include/common/mesh.hh
+++ b/include/common/mesh.hh
@@ -21,17 +21,17 @@
 #define __COMMON_MESH_HH__
 
 #include <vector>
-#include <glm/glm.hpp> // FIXME: switch to qvec
+#include <common/qvec.hh>
 
 class mesh_t {
 public:
-    std::vector<glm::vec3> verts;
+    std::vector<qvec3f> verts;
     std::vector<std::vector<int>> faces;
 };
 
 // Welds vertices at exactly the same position
-mesh_t buildMesh(const std::vector<std::vector<glm::vec3>> &faces);
-std::vector<std::vector<glm::vec3>> meshToFaces(const mesh_t &mesh);
+mesh_t buildMesh(const std::vector<std::vector<qvec3f>> &faces);
+std::vector<std::vector<qvec3f>> meshToFaces(const mesh_t &mesh);
 
 // Preserves the number and order of faces.
 // doesn't merge verts.
diff --git a/light/test_light.cc b/light/test_light.cc
index 6a3e89ed..b8ebdb54 100644
--- a/light/test_light.cc
+++ b/light/test_light.cc
@@ -530,19 +530,19 @@ TEST(mathlib, FractionOfLine) {
 // mesh_t
 
 TEST(mathlib, meshCreate) {
-    const vector<vec3> poly1 {
+    const vector<qvec3f> poly1 {
         { 0,0,0 },
         { 0,64,0 },
         { 64,64,0 },
         { 64,0,0 }
     };
-    const vector<vec3> poly2 {
+    const vector<qvec3f> poly2 {
         { 64,0,0 },
         { 64,64,0 },
         { 128,64,0 },
         { 128,0,0 }
     };
-    const vector<vector<vec3>> polys { poly1, poly2 };
+    const vector<vector<qvec3f>> polys { poly1, poly2 };
     
     const mesh_t m = buildMesh(polys);
     ASSERT_EQ(6, m.verts.size());
@@ -564,26 +564,26 @@ TEST(mathlib, meshFixTJuncs) {
      poly1 should get a vertex inserted at the +
      
      */
-    const vector<vec3> poly1 {
+    const vector<qvec3f> poly1 {
         { 0,0,0 },
         { 0,64,0 },
         { 64,64,0 },
         { 64,0,0 }
     };
-    const vector<vec3> poly2 {
+    const vector<qvec3f> poly2 {
         { 64,32,0 },
         { 64,64,0 },
         { 128,64,0 },
         { 128,32,0 }
     };
-    const vector<vec3> poly3 {
+    const vector<qvec3f> poly3 {
         { 64,0,0 },
         { 64,32,0 },
         { 128,32,0 },
         { 128,0,0 }
     };
     
-    const vector<vector<vec3>> polys { poly1, poly2, poly3 };
+    const vector<vector<qvec3f>> polys { poly1, poly2, poly3 };
     
     mesh_t m = buildMesh(polys);
     ASSERT_EQ(8, m.verts.size());