diff --git a/intern/cycles/render/graph.h b/intern/cycles/render/graph.h
index b39b3dae324..301938aa158 100644
--- a/intern/cycles/render/graph.h
+++ b/intern/cycles/render/graph.h
@@ -81,6 +81,7 @@ enum ShaderNodeSpecialType {
 	SHADER_SPECIAL_TYPE_GEOMETRY,
 	SHADER_SPECIAL_TYPE_SCRIPT,
 	SHADER_SPECIAL_TYPE_BACKGROUND,
+	SHADER_SPECIAL_TYPE_IMAGE_SLOT,
 };
 
 /* Enum
diff --git a/intern/cycles/render/image.cpp b/intern/cycles/render/image.cpp
index 6e63b433709..f0608965d09 100644
--- a/intern/cycles/render/image.cpp
+++ b/intern/cycles/render/image.cpp
@@ -791,6 +791,33 @@ void ImageManager::device_update(Device *device, DeviceScene *dscene, Progress&
 	need_update = false;
 }
 
+void ImageManager::device_update_slot(Device *device,
+                                      DeviceScene *dscene,
+                                      int slot,
+                                      Progress *progress)
+{
+	Image *image;
+	if(slot >= tex_image_byte_start) {
+		int byte_slot = slot - tex_image_byte_start;
+		assert(images[byte_slot] != NULL);
+		image = images[byte_slot];
+	}
+	else {
+		assert(float_images[slot] != NULL);
+		image = float_images[slot];
+	}
+	if(image->users == 0) {
+		device_free_image(device, dscene, slot);
+	}
+	else if(image->need_load) {
+		if(!osl_texture_system || float_images[slot]->builtin_data)
+			device_load_image(device,
+			                  dscene,
+			                  slot,
+			                  progress);
+	}
+}
+
 void ImageManager::device_pack_images(Device *device,
                                       DeviceScene *dscene,
                                       Progress& /*progess*/)
diff --git a/intern/cycles/render/image.h b/intern/cycles/render/image.h
index 1045b4532e4..70cc4935daa 100644
--- a/intern/cycles/render/image.h
+++ b/intern/cycles/render/image.h
@@ -63,6 +63,7 @@ public:
 	bool is_float_image(const string& filename, void *builtin_data, bool& is_linear);
 
 	void device_update(Device *device, DeviceScene *dscene, Progress& progress);
+	void device_update_slot(Device *device, DeviceScene *dscene, int slot, Progress *progress);
 	void device_free(Device *device, DeviceScene *dscene);
 	void device_free_builtin(Device *device, DeviceScene *dscene);
 
diff --git a/intern/cycles/render/mesh.cpp b/intern/cycles/render/mesh.cpp
index 74ea3c94593..b6f3cb3502b 100644
--- a/intern/cycles/render/mesh.cpp
+++ b/intern/cycles/render/mesh.cpp
@@ -20,9 +20,11 @@
 #include "camera.h"
 #include "curves.h"
 #include "device.h"
+#include "graph.h"
 #include "shader.h"
 #include "light.h"
 #include "mesh.h"
+#include "nodes.h"
 #include "object.h"
 #include "scene.h"
 
@@ -1148,6 +1150,55 @@ void MeshManager::device_update_flags(Device * /*device*/,
 	need_flags_update = false;
 }
 
+void MeshManager::device_update_displacement_images(Device *device,
+                                                    DeviceScene *dscene,
+                                                    Scene *scene,
+                                                    Progress& progress)
+{
+	progress.set_status("Updating Displacement Images");
+	TaskPool pool;
+	ImageManager *image_manager = scene->image_manager;
+	set<int> bump_images;
+	foreach(Mesh *mesh, scene->meshes) {
+		if(mesh->need_update) {
+			foreach(uint shader_index, mesh->used_shaders) {
+				Shader *shader = scene->shaders[shader_index];
+				if(shader->graph_bump == NULL) {
+					continue;
+				}
+				foreach(ShaderNode* node, shader->graph_bump->nodes) {
+					if(node->special_type != SHADER_SPECIAL_TYPE_IMAGE_SLOT) {
+						continue;
+					}
+					if(device->info.pack_images) {
+						/* If device requires packed images we need to update all
+						 * images now, even if they're not used for displacement.
+						 */
+						image_manager->device_update(device,
+						                             dscene,
+						                             progress);
+						return;
+					}
+					ImageSlotNode *image_node = static_cast<ImageSlotNode*>(node);
+					int slot = image_node->slot;
+					if(slot != -1) {
+						bump_images.insert(slot);
+					}
+				}
+			}
+		}
+	}
+	foreach(int slot, bump_images) {
+		pool.push(function_bind(&ImageManager::device_update_slot,
+		                        image_manager,
+		                        device,
+		                        dscene,
+		                        slot,
+		                        &progress));
+	}
+	pool.wait_work();
+}
+
 void MeshManager::device_update(Device *device, DeviceScene *dscene, Scene *scene, Progress& progress)
 {
 	VLOG(1) << "Total " << scene->meshes.size() << " meshes.";
@@ -1170,6 +1221,21 @@ void MeshManager::device_update(Device *device, DeviceScene *dscene, Scene *scen
 		}
 	}
 
+	/* Update images needed for true displacement. */
+	bool need_displacement_images = false;
+	foreach(Mesh *mesh, scene->meshes) {
+		if(mesh->need_update &&
+		   mesh->displacement_method != Mesh::DISPLACE_BUMP)
+		{
+			need_displacement_images = true;
+			break;
+		}
+	}
+	if(need_displacement_images) {
+		VLOG(1) << "Updating images used for true displacement.";
+		device_update_displacement_images(device, dscene, scene, progress);
+	}
+
 	/* device update */
 	device_free(device, dscene);
 
diff --git a/intern/cycles/render/mesh.h b/intern/cycles/render/mesh.h
index 6eaafea8729..76c186a3feb 100644
--- a/intern/cycles/render/mesh.h
+++ b/intern/cycles/render/mesh.h
@@ -167,6 +167,7 @@ public:
 	void device_update_attributes(Device *device, DeviceScene *dscene, Scene *scene, Progress& progress);
 	void device_update_bvh(Device *device, DeviceScene *dscene, Scene *scene, Progress& progress);
 	void device_update_flags(Device *device, DeviceScene *dscene, Scene *scene, Progress& progress);
+	void device_update_displacement_images(Device *device, DeviceScene *dscene, Scene *scene, Progress& progress);
 	void device_free(Device *device, DeviceScene *dscene);
 
 	void tag_update(Scene *scene);
diff --git a/intern/cycles/render/nodes.cpp b/intern/cycles/render/nodes.cpp
index 40bb82c6330..747bafcc904 100644
--- a/intern/cycles/render/nodes.cpp
+++ b/intern/cycles/render/nodes.cpp
@@ -186,7 +186,7 @@ ShaderEnum ImageTextureNode::color_space_enum = color_space_init();
 ShaderEnum ImageTextureNode::projection_enum = image_projection_init();
 
 ImageTextureNode::ImageTextureNode()
-: TextureNode("image_texture")
+: ImageSlotTextureNode("image_texture")
 {
 	image_manager = NULL;
 	slot = -1;
@@ -380,7 +380,7 @@ ShaderEnum EnvironmentTextureNode::color_space_enum = color_space_init();
 ShaderEnum EnvironmentTextureNode::projection_enum = env_projection_init();
 
 EnvironmentTextureNode::EnvironmentTextureNode()
-: TextureNode("environment_texture")
+: ImageSlotTextureNode("environment_texture")
 {
 	image_manager = NULL;
 	slot = -1;
diff --git a/intern/cycles/render/nodes.h b/intern/cycles/render/nodes.h
index 0ec0fce512f..ee984773dcf 100644
--- a/intern/cycles/render/nodes.h
+++ b/intern/cycles/render/nodes.h
@@ -55,13 +55,28 @@ public:
 
 /* Nodes */
 
+/* Any node which uses image manager's slot should be a subclass of this one. */
+class ImageSlotNode : public ShaderNode {
+public:
+	ImageSlotNode(const char *name_) : ShaderNode(name_) {
+		special_type = SHADER_SPECIAL_TYPE_IMAGE_SLOT;
+	}
+	int slot;
+};
+
 class TextureNode : public ShaderNode {
 public:
 	TextureNode(const char *name_) : ShaderNode(name_) {}
 	TextureMapping tex_mapping;
 };
 
-class ImageTextureNode : public TextureNode {
+class ImageSlotTextureNode : public ImageSlotNode {
+public:
+	ImageSlotTextureNode(const char *name_) : ImageSlotNode(name_) {}
+	TextureMapping tex_mapping;
+};
+
+class ImageTextureNode : public ImageSlotTextureNode {
 public:
 	SHADER_NODE_NO_CLONE_CLASS(ImageTextureNode)
 	~ImageTextureNode();
@@ -69,7 +84,6 @@ public:
 	void attributes(Shader *shader, AttributeRequestSet *attributes);
 
 	ImageManager *image_manager;
-	int slot;
 	int is_float;
 	bool is_linear;
 	bool use_alpha;
@@ -85,7 +99,7 @@ public:
 	static ShaderEnum projection_enum;
 };
 
-class EnvironmentTextureNode : public TextureNode {
+class EnvironmentTextureNode : public ImageSlotTextureNode {
 public:
 	SHADER_NODE_NO_CLONE_CLASS(EnvironmentTextureNode)
 	~EnvironmentTextureNode();
@@ -93,7 +107,6 @@ public:
 	void attributes(Shader *shader, AttributeRequestSet *attributes);
 
 	ImageManager *image_manager;
-	int slot;
 	int is_float;
 	bool is_linear;
 	bool use_alpha;
diff --git a/intern/cycles/render/scene.cpp b/intern/cycles/render/scene.cpp
index 524574f096d..71741c0dfd1 100644
--- a/intern/cycles/render/scene.cpp
+++ b/intern/cycles/render/scene.cpp
@@ -160,11 +160,6 @@ void Scene::device_update(Device *device_, Progress& progress)
 
 	if(progress.get_cancel() || device->have_error()) return;
 
-	progress.set_status("Updating Images");
-	image_manager->device_update(device, &dscene, progress);
-
-	if(progress.get_cancel() || device->have_error()) return;
-
 	progress.set_status("Updating Background");
 	background->device_update(device, &dscene, this);
 
@@ -195,6 +190,11 @@ void Scene::device_update(Device *device_, Progress& progress)
 
 	if(progress.get_cancel() || device->have_error()) return;
 
+	progress.set_status("Updating Images");
+	image_manager->device_update(device, &dscene, progress);
+
+	if(progress.get_cancel() || device->have_error()) return;
+
 	progress.set_status("Updating Camera Volume");
 	camera->device_update_volume(device, &dscene, this);