diff --git a/src/graphics/renderstate.c b/src/graphics/renderstate.c
index 9a7fa0d..a589276 100644
--- a/src/graphics/renderstate.c
+++ b/src/graphics/renderstate.c
@@ -2,29 +2,32 @@
 
 void renderStateInit(struct RenderState* renderState) {
     renderState->dl = renderState->glist;
-    renderState->currentMatrix = 0;
-    renderState->currentLight = 0;
+    renderState->currentMemoryChunk = 0;
     renderState->currentChunkEnd = MAX_DL_LENGTH;
 }
 
-Mtx* renderStateRequestMatrices(struct RenderState* renderState, unsigned count) {
-    if (renderState->currentMatrix + count <= MAX_ACTIVE_TRANSFORMS) {
-        Mtx* result = &renderState->matrices[renderState->currentMatrix];
-        renderState->currentMatrix += count;
+void* renderStateRequestMemory(struct RenderState* renderState, unsigned size) {
+    unsigned memorySlots = (size + 7) >> 3;
+
+    if (renderState->currentMemoryChunk + memorySlots <= MAX_RENDER_STATE_MEMORY_CHUNKS) {
+        void* result = &renderState->renderStateMemory[renderState->currentMemoryChunk];
+        renderState->currentMemoryChunk += memorySlots;
         return result;
     }
 
     return 0;
 }
 
-Light* renderStateRequestLights(struct RenderState* renderState, unsigned count) {
-    if (renderState->currentLight + count <= MAX_ACTIVE_TRANSFORMS) {
-        Light* result = &renderState->lights[renderState->currentLight];
-        renderState->currentLight += count;
-        return result;
-    }
+Mtx* renderStateRequestMatrices(struct RenderState* renderState, unsigned count) {
+    return renderStateRequestMemory(renderState, sizeof(Mtx) * count);
+}
 
-    return 0;
+Light* renderStateRequestLights(struct RenderState* renderState, unsigned count) {
+    return renderStateRequestMemory(renderState, sizeof(Light) * count);
+}
+
+Vp* renderStateRequestViewport(struct RenderState* renderState) {
+    return renderStateRequestMemory(renderState, sizeof(Vp));
 }
 
 void renderStateFlushCache(struct RenderState* renderState) {
diff --git a/src/graphics/renderstate.h b/src/graphics/renderstate.h
index 3bc94fd..6b414ad 100644
--- a/src/graphics/renderstate.h
+++ b/src/graphics/renderstate.h
@@ -4,22 +4,22 @@
 #include <ultra64.h>
 
 #define MAX_DL_LENGTH           2000
-#define MAX_ACTIVE_TRANSFORMS   100
+#define MAX_RENDER_STATE_MEMORY 6400
+#define MAX_RENDER_STATE_MEMORY_CHUNKS (MAX_RENDER_STATE_MEMORY / sizeof(u64))
 #define MAX_DYNAMIC_LIGHTS      128
 
 struct RenderState {
     Gfx glist[MAX_DL_LENGTH];
-    Mtx matrices[MAX_ACTIVE_TRANSFORMS];
-    Light lights[MAX_DYNAMIC_LIGHTS];
+    u64 renderStateMemory[MAX_RENDER_STATE_MEMORY_CHUNKS];
     Gfx* dl;
-    unsigned short currentMatrix;
-    unsigned short currentLight;
-    unsigned currentChunkEnd;
+    unsigned short currentMemoryChunk;
+    unsigned short currentChunkEnd;
 };
 
 void renderStateInit(struct RenderState* renderState);
 Mtx* renderStateRequestMatrices(struct RenderState* renderState, unsigned count);
 Light* renderStateRequestLights(struct RenderState* renderState, unsigned count);
+Vp* renderStateRequestViewport(struct RenderState* renderState);
 void renderStateFlushCache(struct RenderState* renderState);
 Gfx* renderStateAllocateDLChunk(struct RenderState* renderState, unsigned count);
 Gfx* renderStateReplaceDL(struct RenderState* renderState, Gfx* nextDL);
diff --git a/src/main.c b/src/main.c
index f8d7490..abcfb53 100644
--- a/src/main.c
+++ b/src/main.c
@@ -10,6 +10,7 @@
 #include "util/memory.h"
 #include "string.h"
 #include "controls/controller.h"
+#include "scene/dynamic_scene.h"
 
 #include "levels/levels.h"
 
@@ -129,6 +130,7 @@ static void gameProc(void* arg) {
     heapInit(_heapStart, memoryEnd);
     romInit();
 
+    dynamicSceneInit();
     contactSolverInit(&gContactSolver);
     levelLoad(0);
     sceneInit(&gScene);
diff --git a/src/physics/collision_object.c b/src/physics/collision_object.c
index f55c571..aa9943b 100644
--- a/src/physics/collision_object.c
+++ b/src/physics/collision_object.c
@@ -48,7 +48,9 @@ void collisionObjectCollideWithQuad(struct CollisionObject* object, struct Colli
             return;
         }
         
-        contactSolverAssign(contact, &localContact, 1);
+        if (contactSolverAssign(contact, &localContact, 1) && object->body) {
+            object->body->flags |= RigidBodyIsTouchingPortal;
+        }
     } else if (contact) {
         contactSolverRemoveContact(contactSolver, contact);
     }
diff --git a/src/physics/contact_solver.c b/src/physics/contact_solver.c
index 67db953..ff0eaed 100644
--- a/src/physics/contact_solver.c
+++ b/src/physics/contact_solver.c
@@ -379,7 +379,7 @@ struct ContactState* contactSolverGetContact(struct ContactConstraintState* cont
 	return result;
 }
 
-void contactSolverAssign(struct ContactConstraintState* into, struct ContactConstraintState* from, int filterPortalContacts) {
+int contactSolverAssign(struct ContactConstraintState* into, struct ContactConstraintState* from, int filterPortalContacts) {
 	for (int sourceIndex = 0; sourceIndex < from->contactCount; ++sourceIndex) {
 		int targetIndex;
 
@@ -399,9 +399,11 @@ void contactSolverAssign(struct ContactConstraintState* into, struct ContactCons
 	}
 
 	int copiedCount = 0;
+	int result = 0;
 
 	for (int sourceIndex = 0; sourceIndex < from->contactCount; ++sourceIndex) {
 		if (filterPortalContacts && collisionSceneIsTouchingPortal(&from->contacts[sourceIndex].ra)) {
+			result = 1;
 			continue;
 		}
 
@@ -415,4 +417,6 @@ void contactSolverAssign(struct ContactConstraintState* into, struct ContactCons
 	into->normal = from->normal;
 	into->restitution = from->restitution;
 	into->friction = from->friction;
+	
+	return result;
 }
\ No newline at end of file
diff --git a/src/physics/contact_solver.h b/src/physics/contact_solver.h
index 4cd78d1..b64b74d 100644
--- a/src/physics/contact_solver.h
+++ b/src/physics/contact_solver.h
@@ -62,7 +62,7 @@ void contactSolverRemoveContact(struct ContactSolver* solver, struct ContactCons
 
 struct ContactState* contactSolverGetContact(struct ContactConstraintState* contact, int id);
 
-void contactSolverAssign(struct ContactConstraintState* into, struct ContactConstraintState* from, int filterPortalContacts);
+int contactSolverAssign(struct ContactConstraintState* into, struct ContactConstraintState* from, int filterPortalContacts);
 
 #endif
 
diff --git a/src/physics/rigid_body.c b/src/physics/rigid_body.c
index fd75f36..b7a0c55 100644
--- a/src/physics/rigid_body.c
+++ b/src/physics/rigid_body.c
@@ -73,6 +73,10 @@ void rigidBodyCheckPortals(struct RigidBody* rigidBody) {
 
     enum RigidBodyFlags newFlags = 0;
 
+    if (rigidBody->flags & RigidBodyIsTouchingPortal) {
+        newFlags |= RigidBodyWasTouchingPortal;
+    }
+
     for (int i = 0; i < 2; ++i) {
         transformPointInverse(gCollisionScene.portalTransforms[i], &rigidBody->transform.position, &localPoint);
 
@@ -143,7 +147,9 @@ void rigidBodyCheckPortals(struct RigidBody* rigidBody) {
         RigidBodyFlagsInFrontPortal1 | 
         RigidBodyFlagsPortalsInactive |
         RigidBodyFlagsCrossedPortal0 |
-        RigidBodyFlagsCrossedPortal1
+        RigidBodyFlagsCrossedPortal1 |
+        RigidBodyIsTouchingPortal |
+        RigidBodyWasTouchingPortal
     );
     rigidBody->flags |= newFlags;
 }
\ No newline at end of file
diff --git a/src/physics/rigid_body.h b/src/physics/rigid_body.h
index 2d4eb8e..e0f8f78 100644
--- a/src/physics/rigid_body.h
+++ b/src/physics/rigid_body.h
@@ -11,6 +11,8 @@ enum RigidBodyFlags {
     RigidBodyFlagsCrossedPortal0 = (1 << 3),
     RigidBodyFlagsCrossedPortal1 = (1 << 4),
     RigidBodyFlagsGrabbable = (1 << 5),
+    RigidBodyIsTouchingPortal = (1 << 6),
+    RigidBodyWasTouchingPortal = (1 << 7),
 };
 
 struct RigidBody {
diff --git a/src/scene/camera.c b/src/scene/camera.c
index f3ce809..927b482 100644
--- a/src/scene/camera.c
+++ b/src/scene/camera.c
@@ -2,6 +2,7 @@
 #include "camera.h"
 #include "math/transform.h"
 #include "defs.h"
+#include "../graphics/graphics.h"
 
 void cameraInit(struct Camera* camera, float fov, float near, float far) {
     transformInitIdentity(&camera->transform);
@@ -28,7 +29,7 @@ void cameraBuildProjectionMatrix(struct Camera* camera, float matrix[4][4], u16*
     guPerspectiveF(matrix, perspectiveNormalize, camera->fov, aspectRatio, camera->nearPlane * planeScalar, camera->farPlane * planeScalar, 1.0f);
 }
 
-Mtx* cameraSetupMatrices(struct Camera* camera, struct RenderState* renderState, float aspectRatio, u16* perspNorm) {
+Mtx* cameraSetupMatrices(struct Camera* camera, struct RenderState* renderState, float aspectRatio, u16* perspNorm, Vp* viewport) {
     Mtx* viewProjMatrix = renderStateRequestMatrices(renderState, 2);
     
     if (!viewProjMatrix) {
@@ -42,9 +43,18 @@ Mtx* cameraSetupMatrices(struct Camera* camera, struct RenderState* renderState,
     float persp[4][4];
     float combined[4][4];
 
-    cameraBuildViewMatrix(camera, view);
+    float scaleX = viewport->vp.vscale[0] * (1.0f / (SCREEN_WD << 1));
+    float scaleY = viewport->vp.vscale[1] * (1.0f / (SCREEN_HT << 1));
+
+    float centerX = ((float)viewport->vp.vtrans[0] - (SCREEN_WD << 1)) * (1.0f / (SCREEN_WD << 1));
+    float centerY = ((SCREEN_HT << 1) - (float)viewport->vp.vtrans[1]) * (1.0f / (SCREEN_HT << 1));
+
+    guOrthoF(combined, centerX - scaleX, centerX + scaleX, centerY - scaleY, centerY + scaleY, 1.0f, -1.0f, 1.0f);
     u16 perspectiveNormalize;
-    cameraBuildProjectionMatrix(camera, persp, &perspectiveNormalize, aspectRatio);
+    cameraBuildProjectionMatrix(camera, view, &perspectiveNormalize, aspectRatio);
+    guMtxCatF(view, combined, persp);
+
+    cameraBuildViewMatrix(camera, view);
     guMtxCatF(view, persp, combined);
     guMtxF2L(combined, &viewProjMatrix[1]);
 
diff --git a/src/scene/camera.h b/src/scene/camera.h
index a3fc517..f22cde2 100644
--- a/src/scene/camera.h
+++ b/src/scene/camera.h
@@ -18,6 +18,6 @@ struct Camera {
 void cameraInit(struct Camera* camera, float fov, float near, float far);
 void cameraBuildViewMatrix(struct Camera* camera, float matrix[4][4]);
 void cameraBuildProjectionMatrix(struct Camera* camera, float matrix[4][4], u16* perspectiveNorm, float aspectRatio);
-Mtx* cameraSetupMatrices(struct Camera* camera, struct RenderState* renderState, float aspectRatio, u16* perspNorm);
+Mtx* cameraSetupMatrices(struct Camera* camera, struct RenderState* renderState, float aspectRatio, u16* perspNorm, Vp* viewport);
 
 #endif
\ No newline at end of file
diff --git a/src/scene/cube.c b/src/scene/cube.c
index ceab081..860beec 100644
--- a/src/scene/cube.c
+++ b/src/scene/cube.c
@@ -5,6 +5,7 @@
 #include "../graphics/debug_render.h"
 #include "levels/levels.h"
 #include "physics/collision_scene.h"
+#include "dynamic_scene.h"
 
 struct CollisionBox gCubeCollisionBox = {
     {0.3165f, 0.3165f, 0.3165f}
@@ -57,22 +58,29 @@ struct ColliderTypeData gCubeCollider = {
     &gCollisionBoxCallbacks,  
 };
 
-void cubeInit(struct Cube* cube) {
-    collisionObjectInit(&cube->collisionObject, &gCubeCollider, &cube->rigidBody, 1.0f);
-    collisionSceneAddDynamicObject(&cube->collisionObject);
-
-    cube->collisionObject.body->flags |= RigidBodyFlagsGrabbable;
-}
-
-void cubeUpdate(struct Cube* cube) {
-    
-}
-
-void cubeRender(struct Cube* cube, struct RenderState* renderState) {
+void cubeRender(void* data, struct RenderState* renderState) {
+    struct Cube* cube = (struct Cube*)data;
     Mtx* matrix = renderStateRequestMatrices(renderState, 1);
     transformToMatrixL(&cube->rigidBody.transform, matrix, SCENE_SCALE);
 
     gSPMatrix(renderState->dl++, matrix, G_MTX_MODELVIEW | G_MTX_PUSH | G_MTX_MUL);
     gSPDisplayList(renderState->dl++, cube_CubeSimpleBevel_mesh);
     gSPPopMatrix(renderState->dl++, G_MTX_MODELVIEW);
-}
\ No newline at end of file
+}
+
+void cubeInit(struct Cube* cube) {
+    collisionObjectInit(&cube->collisionObject, &gCubeCollider, &cube->rigidBody, 1.0f);
+    collisionSceneAddDynamicObject(&cube->collisionObject);
+
+    cube->collisionObject.body->flags |= RigidBodyFlagsGrabbable;
+
+    cube->dynamicId = dynamicSceneAdd(cube, cubeRender);
+}
+
+void cubeUpdate(struct Cube* cube) {
+    if (cube->rigidBody.flags & (RigidBodyIsTouchingPortal | RigidBodyWasTouchingPortal)) {
+        dynamicSceneSetFlags(cube->dynamicId, DYNAMIC_SCENE_OBJECT_FLAGS_TOUCHING_PORTAL);
+    } else {
+        dynamicSceneClearFlags(cube->dynamicId, DYNAMIC_SCENE_OBJECT_FLAGS_TOUCHING_PORTAL);
+    }
+}
diff --git a/src/scene/cube.h b/src/scene/cube.h
index d84662b..064fcbc 100644
--- a/src/scene/cube.h
+++ b/src/scene/cube.h
@@ -8,10 +8,10 @@
 struct Cube {
     struct CollisionObject collisionObject;
     struct RigidBody rigidBody;
+    short dynamicId;
 };
 
 void cubeInit(struct Cube* cube);
 void cubeUpdate(struct Cube* cube);
-void cubeRender(struct Cube* cube, struct RenderState* renderState);
 
 #endif
\ No newline at end of file
diff --git a/src/scene/dynamic_scene.c b/src/scene/dynamic_scene.c
new file mode 100644
index 0000000..578ba66
--- /dev/null
+++ b/src/scene/dynamic_scene.c
@@ -0,0 +1,54 @@
+#include "dynamic_scene.h"
+
+struct DynamicScene gDynamicScene;
+
+void dynamicSceneInit() {
+    for (int i = 0; i < MAX_DYNAMIC_SCENE_OBJECTS; ++i) {
+        gDynamicScene.objects[i].flags = 0;
+    }
+}
+
+void dynamicSceneRender(struct RenderState* renderState, int touchingPortals) {
+    int flagMask = DYNAMIC_SCENE_OBJECT_FLAGS_USED | DYNAMIC_SCENE_OBJECT_FLAGS_ACTIVE | DYNAMIC_SCENE_OBJECT_FLAGS_TOUCHING_PORTAL;
+    int flagValue = DYNAMIC_SCENE_OBJECT_FLAGS_USED | DYNAMIC_SCENE_OBJECT_FLAGS_ACTIVE;
+
+    if (touchingPortals) {
+        flagValue |= DYNAMIC_SCENE_OBJECT_FLAGS_TOUCHING_PORTAL;
+    }
+
+    for (int i = 0; i < MAX_DYNAMIC_SCENE_OBJECTS; ++i) {
+        if ((gDynamicScene.objects[i].flags & flagMask) == flagValue) {
+            gDynamicScene.objects[i].renderCallback(gDynamicScene.objects[i].data, renderState);
+        }
+    }
+}
+
+int dynamicSceneAdd(void* data, DynamicRender renderCallback) {
+    for (int i = 0; i < MAX_DYNAMIC_SCENE_OBJECTS; ++i) {
+        if (!(gDynamicScene.objects[i].flags & DYNAMIC_SCENE_OBJECT_FLAGS_USED)) {
+            gDynamicScene.objects[i].flags = DYNAMIC_SCENE_OBJECT_FLAGS_USED | DYNAMIC_SCENE_OBJECT_FLAGS_ACTIVE;
+            gDynamicScene.objects[i].data = data;
+            gDynamicScene.objects[i].renderCallback = renderCallback;
+            return i;
+        }
+    }
+
+    return INVALID_DYNAMIC_OBJECT;
+}
+
+void dynamicSceneRemove(int id) {
+    if (id < 0 || id >= MAX_DYNAMIC_SCENE_OBJECTS) {
+        return;
+    }
+
+    gDynamicScene.objects[id].flags = 0;
+}
+
+void dynamicSceneSetFlags(int id, int flags) {
+    gDynamicScene.objects[id].flags |= flags;
+}
+
+void dynamicSceneClearFlags(int id, int flags) {
+    gDynamicScene.objects[id].flags &= ~flags;
+
+}
\ No newline at end of file
diff --git a/src/scene/dynamic_scene.h b/src/scene/dynamic_scene.h
new file mode 100644
index 0000000..fe87d27
--- /dev/null
+++ b/src/scene/dynamic_scene.h
@@ -0,0 +1,35 @@
+#ifndef __DYNAMIC_SCENE_H__
+#define __DYNAMIC_SCENE_H__
+
+#include "../graphics/renderstate.h"
+
+typedef void (*DynamicRender)(void* data, struct RenderState* renderState);
+
+#define MAX_DYNAMIC_SCENE_OBJECTS 32
+
+#define DYNAMIC_SCENE_OBJECT_FLAGS_USED                 (1 << 0)
+#define DYNAMIC_SCENE_OBJECT_FLAGS_ACTIVE               (1 << 1)
+#define DYNAMIC_SCENE_OBJECT_FLAGS_TOUCHING_PORTAL      (1 << 2)
+
+#define INVALID_DYNAMIC_OBJECT  -1
+
+struct DynamicSceneObject {
+    void* data;
+    DynamicRender renderCallback;
+    int flags;
+};
+
+struct DynamicScene {
+    struct DynamicSceneObject objects[MAX_DYNAMIC_SCENE_OBJECTS];
+};
+
+void dynamicSceneInit();
+
+void dynamicSceneRender(struct RenderState* renderState, int touchingPortals);
+
+int dynamicSceneAdd(void* data, DynamicRender renderCallback);
+void dynamicSceneRemove(int id);
+void dynamicSceneSetFlags(int id, int flags);
+void dynamicSceneClearFlags(int id, int flags);
+
+#endif
\ No newline at end of file
diff --git a/src/scene/portal.c b/src/scene/portal.c
index 3dfa071..609acea 100644
--- a/src/scene/portal.c
+++ b/src/scene/portal.c
@@ -4,6 +4,7 @@
 #include "../graphics/screen_clipper.h"
 #include "../graphics/graphics.h"
 #include "../defs.h"
+#include "dynamic_scene.h"
 
 #define CALC_SCREEN_SPACE(clip_space, screen_size) ((clip_space + 1.0f) * ((screen_size) / 2))
 
@@ -34,7 +35,8 @@ struct Quaternion gVerticalFlip = {0.0f, 1.0f, 0.0f, 0.0f};
 void renderPropsInit(struct RenderProps* props, struct Camera* camera, float aspectRatio, struct RenderState* renderState) {
     props->camera = *camera;
     props->aspectRatio = aspectRatio;
-    props->perspectiveMatrix = cameraSetupMatrices(camera, renderState, aspectRatio, &props->perspectiveCorrect);
+    props->perspectiveMatrix = cameraSetupMatrices(camera, renderState, aspectRatio, &props->perspectiveCorrect, &fullscreenViewport);
+    props->viewport = &fullscreenViewport;
     props->currentDepth = STARTING_RENDER_DEPTH;
 
     props->minX = 0;
@@ -43,7 +45,7 @@ void renderPropsInit(struct RenderProps* props, struct Camera* camera, float asp
     props->maxY = SCREEN_HT;
 }
 
-void renderPropsNext(struct RenderProps* current, struct RenderProps* next, struct Transform* fromPortal, struct Transform* toPortal, short minX, short minY, short maxX, short maxY, struct RenderState* renderState) {
+void renderPropsNext(struct RenderProps* current, struct RenderProps* next, struct Transform* fromPortal, struct Transform* toPortal, struct RenderState* renderState) {
     struct Transform otherInverse;
     transformInvert(fromPortal, &otherInverse);
     struct Transform portalCombined;
@@ -53,16 +55,30 @@ void renderPropsNext(struct RenderProps* current, struct RenderProps* next, stru
     next->aspectRatio = current->aspectRatio;
     transformConcat(&portalCombined, &current->camera.transform, &next->camera.transform);
 
-    next->perspectiveMatrix = cameraSetupMatrices(&next->camera, renderState, next->aspectRatio, &next->perspectiveCorrect);
+    // render any objects halfway through portals
+    cameraSetupMatrices(&next->camera, renderState, next->aspectRatio, &next->perspectiveCorrect, current->viewport);
+    dynamicSceneRender(renderState, 1);
+
+    Vp* viewport = renderStateRequestViewport(renderState);
+
+    viewport->vp.vscale[0] = (next->maxX - next->minX) << 1;
+    viewport->vp.vscale[1] = (next->maxY - next->minY) << 1;
+    viewport->vp.vscale[2] = G_MAXZ/2;
+    viewport->vp.vscale[3] = 0;
+
+    viewport->vp.vtrans[0] = (next->maxX + next->minX) << 1;
+    viewport->vp.vtrans[1] = (next->maxY + next->minY) << 1;
+    viewport->vp.vtrans[2] = G_MAXZ/2;
+    viewport->vp.vtrans[3] = 0;
+
+    next->viewport = viewport;
+
+    next->perspectiveMatrix = cameraSetupMatrices(&next->camera, renderState, next->aspectRatio, &next->perspectiveCorrect, viewport);
 
     next->currentDepth = current->currentDepth - 1;
 
-    next->minX = minX;
-    next->minY = minY;
-    next->maxX = maxX;
-    next->maxY = maxY;
-
-    gDPSetScissor(renderState->dl++, G_SC_NON_INTERLACE, minX, minY, maxX, maxY);
+    gSPViewport(renderState->dl++, viewport);
+    gDPSetScissor(renderState->dl++, G_SC_NON_INTERLACE, next->minX, next->minY, next->maxX, next->maxY);
 }
 
 void portalInit(struct Portal* portal, enum PortalFlags flags) {
@@ -107,19 +123,26 @@ void portalRender(struct Portal* portal, struct Portal* otherPortal, struct Rend
     screenClipperBoundingPoints(&clipper, gPortalOutline, sizeof(gPortalOutline) / sizeof(*gPortalOutline), &clippingBounds);
 
     if (clippingBounds.min.x < clippingBounds.max.x && clippingBounds.min.y < clippingBounds.max.y) {
-        int minX = CALC_SCREEN_SPACE(clippingBounds.min.x, SCREEN_WD);
-        int maxX = CALC_SCREEN_SPACE(clippingBounds.max.x, SCREEN_WD);
-        int minY = CALC_SCREEN_SPACE(-clippingBounds.max.y, SCREEN_HT);
-        int maxY = CALC_SCREEN_SPACE(-clippingBounds.min.y, SCREEN_HT);
-
         struct RenderProps nextProps;
-        renderPropsNext(props, &nextProps, &portal->transform, &otherPortal->transform, minX, minY, maxX, maxY, renderState);
+
+        nextProps.minX = CALC_SCREEN_SPACE(clippingBounds.min.x, SCREEN_WD);
+        nextProps.maxX = CALC_SCREEN_SPACE(clippingBounds.max.x, SCREEN_WD);
+        nextProps.minY = CALC_SCREEN_SPACE(-clippingBounds.max.y, SCREEN_HT);
+        nextProps.maxY = CALC_SCREEN_SPACE(-clippingBounds.min.y, SCREEN_HT);
+
+        nextProps.minX = MAX(nextProps.minX, props->minX);
+        nextProps.maxX = MIN(nextProps.maxX, props->maxX);
+        nextProps.minY = MAX(nextProps.minY, props->minY);
+        nextProps.maxY = MIN(nextProps.maxY, props->maxY);
+
+        renderPropsNext(props, &nextProps, &portal->transform, &otherPortal->transform, renderState);
         sceneRenderer(data, &nextProps, renderState);
 
         // revert to previous state
         gSPMatrix(renderState->dl++, osVirtualToPhysical(props->perspectiveMatrix), G_MTX_PROJECTION | G_MTX_LOAD | G_MTX_NOPUSH);
         gSPPerspNormalize(renderState->dl++, props->perspectiveCorrect);
         gDPSetScissor(renderState->dl++, G_SC_NON_INTERLACE, props->minX, props->minY, props->maxX, props->maxY);       
+        gSPViewport(renderState->dl++, props->viewport);
 
         Mtx* matrix = renderStateRequestMatrices(renderState, 1);
 
diff --git a/src/scene/portal.h b/src/scene/portal.h
index 8ea8918..271fa80 100644
--- a/src/scene/portal.h
+++ b/src/scene/portal.h
@@ -26,6 +26,7 @@ struct RenderProps {
     struct Camera camera;
     float aspectRatio;
     Mtx* perspectiveMatrix;
+    Vp* viewport;
     u16 perspectiveCorrect;
     short currentDepth;
 
@@ -38,7 +39,7 @@ struct RenderProps {
 #define STARTING_RENDER_DEPTH       1
 
 void renderPropsInit(struct RenderProps* props, struct Camera* camera, float aspectRatio, struct RenderState* renderState);
-void renderPropsNext(struct RenderProps* current, struct RenderProps* next, struct Transform* fromPortal, struct Transform* toPortal, short minX, short minY, short maxX, short maxY, struct RenderState* renderState);
+void renderPropsNext(struct RenderProps* current, struct RenderProps* next, struct Transform* fromPortal, struct Transform* toPortal, struct RenderState* renderState);
 
 void portalInit(struct Portal* portal, enum PortalFlags flags);
 
diff --git a/src/scene/scene.c b/src/scene/scene.c
index 3c22551..2f93c3c 100644
--- a/src/scene/scene.c
+++ b/src/scene/scene.c
@@ -21,6 +21,7 @@
 #include "../scene/portal_surface.h"
 #include "../math/mathf.h"
 #include "./hud.h"
+#include "dynamic_scene.h"
 
 struct Vector3 gStartPosition = {5.0f, 1.2f, -5.0f};
 
@@ -67,7 +68,7 @@ void sceneRenderWithProperties(void* data, struct RenderProps* properties, struc
 
     staticRender(renderState);
 
-    cubeRender(&scene->cube, renderState);
+    dynamicSceneRender(renderState, 0);
 }
 
 #define SOLID_COLOR        0, 0, 0, ENVIRONMENT, 0, 0, 0, ENVIRONMENT
@@ -92,6 +93,10 @@ void sceneRender(struct Scene* scene, struct RenderState* renderState, struct Gr
     renderProperties.camera = scene->camera;
     renderProperties.currentDepth = STARTING_RENDER_DEPTH;
 
+    gDPSetRenderMode(renderState->dl++, G_RM_ZB_OPA_SURF, G_RM_ZB_OPA_SURF2);
+
+    dynamicSceneRender(renderState, 1);
+
     sceneRenderWithProperties(scene, &renderProperties, renderState);
 
     gDPPipeSync(renderState->dl++);
@@ -129,6 +134,8 @@ void sceneUpdate(struct Scene* scene) {
 
     playerUpdate(&scene->player, &scene->camera.transform);
     sceneCheckPortals(scene);
+
+    cubeUpdate(&scene->cube);
     
     collisionSceneUpdateDynamics();