diff --git a/src/scene/portal.c b/src/scene/portal.c
index 00046c5..41a1a3d 100644
--- a/src/scene/portal.c
+++ b/src/scene/portal.c
@@ -31,13 +31,13 @@ struct ColliderTypeData gPortalColliderType = {
 
 struct Vector3 gPortalOutline[PORTAL_LOOP_SIZE] = {
     {0.0f, 1.0f * SCENE_SCALE * PORTAL_COVER_HEIGHT_RADIUS, 0},
-    {SCENE_SCALE * PORTAL_COVER_WIDTH_RADIUS, SCENE_SCALE * PORTAL_COVER_HEIGHT_RADIUS, 0},
-    {0.5f * SCENE_SCALE * PORTAL_COVER_WIDTH_RADIUS, 0.0f, 0},
-    {SCENE_SCALE * PORTAL_COVER_WIDTH_RADIUS, -1.0f * SCENE_SCALE * PORTAL_COVER_HEIGHT_RADIUS, 0},
+    {0.707107f * SCENE_SCALE * PORTAL_COVER_WIDTH_RADIUS, SCENE_SCALE * PORTAL_COVER_HEIGHT_RADIUS, 0},
+    {1.0f * SCENE_SCALE * PORTAL_COVER_WIDTH_RADIUS, 0.0f, 0},
+    {0.707107f * SCENE_SCALE * PORTAL_COVER_WIDTH_RADIUS, -1.0f * SCENE_SCALE * PORTAL_COVER_HEIGHT_RADIUS, 0},
     {0.0f, -1.0f * SCENE_SCALE * PORTAL_COVER_HEIGHT_RADIUS, 0},
-    {-1.0f * SCENE_SCALE * PORTAL_COVER_WIDTH_RADIUS, -1.0f * SCENE_SCALE * PORTAL_COVER_HEIGHT_RADIUS, 0},
-    {-0.5f * SCENE_SCALE * PORTAL_COVER_WIDTH_RADIUS, 0.0f, 0},
-    {-1.0f * SCENE_SCALE * PORTAL_COVER_WIDTH_RADIUS, SCENE_SCALE * PORTAL_COVER_HEIGHT_RADIUS, 0},
+    {-0.707107f * SCENE_SCALE * PORTAL_COVER_WIDTH_RADIUS, -1.0f * SCENE_SCALE * PORTAL_COVER_HEIGHT_RADIUS, 0},
+    {-1.0f * SCENE_SCALE * PORTAL_COVER_WIDTH_RADIUS, 0.0f, 0},
+    {-0.707107f * SCENE_SCALE * PORTAL_COVER_WIDTH_RADIUS, SCENE_SCALE * PORTAL_COVER_HEIGHT_RADIUS, 0},
 };
 
 #define PORTAL_CLIPPING_PLANE_BIAS  (SCENE_SCALE * 0.25f)
@@ -86,12 +86,12 @@ void portalCalculateBB(struct Transform* portalTransform, struct Box3D* bb) {
     bb->min = bb->max = portalTransform->position;
 
     struct Vector3 nextDir;
-    vector3Scale(&portalUp, &nextDir, PORTAL_COVER_HEIGHT_RADIUS * 0.5f);
+    vector3Scale(&portalUp, &nextDir, PORTAL_COVER_HEIGHT_RADIUS);
     box3DExtendDirection(bb, &nextDir, bb);
     vector3Negate(&nextDir, &nextDir);
     box3DExtendDirection(bb, &nextDir, bb);
 
-    vector3Scale(&portalRight, &nextDir, PORTAL_COVER_WIDTH_RADIUS * 0.5f);
+    vector3Scale(&portalRight, &nextDir, PORTAL_COVER_WIDTH_RADIUS);
     box3DExtendDirection(bb, &nextDir, bb);
     vector3Negate(&nextDir, &nextDir);
     box3DExtendDirection(bb, &nextDir, bb);
diff --git a/src/scene/render_plan.c b/src/scene/render_plan.c
index c8aa84d..7ac654f 100644
--- a/src/scene/render_plan.c
+++ b/src/scene/render_plan.c
@@ -266,7 +266,7 @@ int renderPlanPortal(struct RenderPlan* renderPlan, struct Scene* scene, struct
     struct Vector3 cameraForward;
     quatMultVector(&next->camera.transform.rotation, &gForward, &cameraForward);
 
-    next->camera.nearPlane = (-vector3Dot(&portalOffset, &cameraForward)) * SCENE_SCALE - SCENE_SCALE * PORTAL_COVER_HEIGHT_RADIUS * 0.5f;
+    next->camera.nearPlane = (-vector3Dot(&portalOffset, &cameraForward)) * SCENE_SCALE - SCENE_SCALE * PORTAL_COVER_HEIGHT_RADIUS;
 
     if (next->camera.nearPlane < current->camera.nearPlane) {
         next->camera.nearPlane = current->camera.nearPlane;