Commit: cac3d4d16691d77e8e01f158be07d182e56e9755
Author: Brecht Van Lommel
Date: Sun Nov 5 17:40:36 2017 +0100
Branches: master
https://developer.blender.org/rBcac3d4d16691d77e8e01f158be07d182e56e9755
Cycles: fix inefficient attribute map storage, saves 615MB in victor scene.
===================================================================
M intern/cycles/kernel/geom/geom_attribute.h
M intern/cycles/kernel/geom/geom_motion_curve.h
M intern/cycles/kernel/geom/geom_motion_triangle.h
M intern/cycles/kernel/kernel_types.h
M intern/cycles/render/mesh.cpp
M intern/cycles/render/mesh.h
M intern/cycles/render/object.cpp
M intern/cycles/render/object.h
===================================================================
diff --git a/intern/cycles/kernel/geom/geom_attribute.h
b/intern/cycles/kernel/geom/geom_attribute.h
index cc62192ef21..18f5c813cc8 100644
--- a/intern/cycles/kernel/geom/geom_attribute.h
+++ b/intern/cycles/kernel/geom/geom_attribute.h
@@ -51,14 +51,21 @@ ccl_device_inline AttributeDescriptor attribute_not_found()
/* Find attribute based on ID */
+ccl_device_inline uint object_attribute_map_offset(KernelGlobals *kg, int
object)
+{
+ int offset = object*OBJECT_SIZE + 11;
+ float4 f = kernel_tex_fetch(__objects, offset);
+ return __float_as_uint(f.y);
+}
+
ccl_device_inline AttributeDescriptor find_attribute(KernelGlobals *kg, const
ShaderData *sd, uint id)
{
- if(sd->object == PRIM_NONE) {
+ if(sd->object == OBJECT_NONE) {
return attribute_not_found();
}
/* for SVM, find attribute by unique id */
- uint attr_offset = sd->object*kernel_data.bvh.attributes_map_stride;
+ uint attr_offset = object_attribute_map_offset(kg, sd->object);
attr_offset += attribute_primitive_type(kg, sd);
uint4 attr_map = kernel_tex_fetch(__attributes_map, attr_offset);
diff --git a/intern/cycles/kernel/geom/geom_motion_curve.h
b/intern/cycles/kernel/geom/geom_motion_curve.h
index 119bdb2f15c..fad29e431ec 100644
--- a/intern/cycles/kernel/geom/geom_motion_curve.h
+++ b/intern/cycles/kernel/geom/geom_motion_curve.h
@@ -33,7 +33,7 @@ ccl_device_inline int
find_attribute_curve_motion(KernelGlobals *kg, int object,
* zero iterations and rendering is really slow with motion curves. For
until other
* areas are speed up it's probably not so crucial to optimize this out.
*/
- uint attr_offset = object*kernel_data.bvh.attributes_map_stride +
ATTR_PRIM_CURVE;
+ uint attr_offset = object_attribute_map_offset(kg, object) +
ATTR_PRIM_CURVE;
uint4 attr_map = kernel_tex_fetch(__attributes_map, attr_offset);
while(attr_map.x != id) {
diff --git a/intern/cycles/kernel/geom/geom_motion_triangle.h
b/intern/cycles/kernel/geom/geom_motion_triangle.h
index 4e84aa97776..cd28b75c22c 100644
--- a/intern/cycles/kernel/geom/geom_motion_triangle.h
+++ b/intern/cycles/kernel/geom/geom_motion_triangle.h
@@ -32,7 +32,7 @@ CCL_NAMESPACE_BEGIN
ccl_device_inline int find_attribute_motion(KernelGlobals *kg, int object,
uint id, AttributeElement *elem)
{
/* todo: find a better (faster) solution for this, maybe store offset
per object */
- uint attr_offset = object*kernel_data.bvh.attributes_map_stride;
+ uint attr_offset = object_attribute_map_offset(kg, object);
uint4 attr_map = kernel_tex_fetch(__attributes_map, attr_offset);
while(attr_map.x != id) {
diff --git a/intern/cycles/kernel/kernel_types.h
b/intern/cycles/kernel/kernel_types.h
index 49ec6d97f28..d1733d8a6e7 100644
--- a/intern/cycles/kernel/kernel_types.h
+++ b/intern/cycles/kernel/kernel_types.h
@@ -1295,13 +1295,12 @@ static_assert_align(KernelIntegrator, 16);
typedef struct KernelBVH {
/* root node */
int root;
- int attributes_map_stride;
int have_motion;
int have_curves;
int have_instancing;
int use_qbvh;
int use_bvh_steps;
- int pad1;
+ int pad1, pad2;
} KernelBVH;
static_assert_align(KernelBVH, 16);
diff --git a/intern/cycles/render/mesh.cpp b/intern/cycles/render/mesh.cpp
index 75bdf71616f..189ba80ad2a 100644
--- a/intern/cycles/render/mesh.cpp
+++ b/intern/cycles/render/mesh.cpp
@@ -436,6 +436,8 @@ Mesh::Mesh()
face_offset = 0;
corner_offset = 0;
+ attr_map_offset = 0;
+
num_subd_verts = 0;
attributes.triangle_mesh = this;
@@ -1258,33 +1260,27 @@ void MeshManager::update_svm_attributes(Device *,
DeviceScene *dscene, Scene *sc
* attribute, based on a unique shader attribute id. */
/* compute array stride */
- int attr_map_stride = 0;
+ int attr_map_size = 0;
- for(size_t i = 0; i < scene->meshes.size(); i++)
- attr_map_stride = max(attr_map_stride,
(mesh_attributes[i].size() + 1)*ATTR_PRIM_TYPES);
+ for(size_t i = 0; i < scene->meshes.size(); i++) {
+ Mesh *mesh = scene->meshes[i];
+ mesh->attr_map_offset = attr_map_size;
+ attr_map_size += (mesh_attributes[i].size() +
1)*ATTR_PRIM_TYPES;
+ }
- if(attr_map_stride == 0)
+ if(attr_map_size == 0)
return;
/* create attribute map */
- uint4 *attr_map =
dscene->attributes_map.alloc(attr_map_stride*scene->objects.size());
+ uint4 *attr_map =
dscene->attributes_map.alloc(attr_map_size*scene->meshes.size());
memset(attr_map, 0, dscene->attributes_map.size()*sizeof(uint));
- for(size_t i = 0; i < scene->objects.size(); i++) {
- Object *object = scene->objects[i];
- Mesh *mesh = object->mesh;
-
- /* find mesh attributes */
- size_t j;
-
- for(j = 0; j < scene->meshes.size(); j++)
- if(scene->meshes[j] == mesh)
- break;
-
- AttributeRequestSet& attributes = mesh_attributes[j];
+ for(size_t i = 0; i < scene->meshes.size(); i++) {
+ Mesh *mesh = scene->meshes[i];
+ AttributeRequestSet& attributes = mesh_attributes[i];
/* set object attributes */
- int index = i*attr_map_stride;
+ int index = mesh->attr_map_offset;
foreach(AttributeRequest& req, attributes.requests) {
uint id;
@@ -1358,7 +1354,6 @@ void MeshManager::update_svm_attributes(Device *,
DeviceScene *dscene, Scene *sc
}
/* copy to device */
- dscene->data.bvh.attributes_map_stride = attr_map_stride;
dscene->attributes_map.copy_to_device();
}
@@ -1625,6 +1620,12 @@ void MeshManager::device_update_attributes(Device
*device, DeviceScene *dscene,
if(dscene->attributes_uchar4.size()) {
dscene->attributes_uchar4.copy_to_device();
}
+
+ if(progress.get_cancel()) return;
+
+ /* After mesh attributes and patch tables have been copied to device
memory,
+ * we need to update offsets in the objects. */
+ scene->object_manager->device_update_mesh_offsets(device, dscene,
scene);
}
void MeshManager::mesh_calc_offset(Scene *scene)
@@ -2042,10 +2043,6 @@ void MeshManager::device_update(Device *device,
DeviceScene *dscene, Scene *scen
}
if(progress.get_cancel()) return;
- /* after mesh data has been copied to device memory we need to update
- * offsets for patch tables as this can't be known before hand */
- scene->object_manager->device_update_patch_map_offsets(device, dscene,
scene);
-
device_update_attributes(device, dscene, scene, progress);
if(progress.get_cancel()) return;
diff --git a/intern/cycles/render/mesh.h b/intern/cycles/render/mesh.h
index 30f5e9063e6..07d8bbdbf31 100644
--- a/intern/cycles/render/mesh.h
+++ b/intern/cycles/render/mesh.h
@@ -250,6 +250,8 @@ public:
size_t face_offset;
size_t corner_offset;
+ size_t attr_map_offset;
+
size_t num_subd_verts;
/* Functions */
diff --git a/intern/cycles/render/object.cpp b/intern/cycles/render/object.cpp
index 3b93b0c0d1e..a12a0d297f0 100644
--- a/intern/cycles/render/object.cpp
+++ b/intern/cycles/render/object.cpp
@@ -641,7 +641,7 @@ void ObjectManager::device_update_flags(Device *,
dscene->object_flag.copy_to_device();
}
-void ObjectManager::device_update_patch_map_offsets(Device *, DeviceScene
*dscene, Scene *scene)
+void ObjectManager::device_update_mesh_offsets(Device *, DeviceScene *dscene,
Scene *scene)
{
if(scene->objects.size() == 0) {
return;
@@ -650,12 +650,11 @@ void
ObjectManager::device_update_patch_map_offsets(Device *, DeviceScene *dscen
uint4* objects = (uint4*)dscene->objects.data();
bool update = false;
-
int object_index = 0;
- foreach(Object *object, scene->objects) {
- int offset = object_index*OBJECT_SIZE + 11;
+ foreach(Object *object, scene->objects) {
Mesh* mesh = object->mesh;
+ int offset = object_index*OBJECT_SIZE + 11;
if(mesh->patch_table) {
uint patch_map_offset = 2*(mesh->patch_table_offset +
mesh->patch_table->total_size() -
@@ -667,6 +666,11 @@ void ObjectManager::device_update_patch_map_offsets(Device
*, DeviceScene *dscen
}
}
+ if(objects[offset].y != mesh->attr_map_offset) {
+ objects[offset].y = mesh->attr_map_offset;
+ update = true;
+ }
+
object_index++;
}
diff --git a/intern/cycles/render/object.h b/intern/cycles/render/object.h
index 6927bbfe4c7..9f86c342acd 100644
--- a/intern/cycles/render/object.h
+++ b/intern/cycles/render/object.h
@@ -104,7 +104,7 @@ public:
Scene *scene,
Progress& progress,
bool bounds_valid = true);
- void device_update_patch_map_offsets(Device *device, DeviceScene
*dscene, Scene *scene);
+ void device_update_mesh_offsets(Device *device, DeviceScene *dscene,
Scene *scene);
void device_free(Device *device, DeviceScene *dscene);
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