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blender/intern/cycles/blender/blender_session.cpp

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/*
* Copyright 2011-2013 Blender Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdlib.h>
#include "background.h"
#include "buffers.h"
#include "camera.h"
#include "device.h"
#include "integrator.h"
#include "film.h"
#include "light.h"
#include "mesh.h"
#include "object.h"
#include "scene.h"
#include "session.h"
#include "shader.h"
#include "util_color.h"
#include "util_foreach.h"
#include "util_function.h"
#include "util_logging.h"
#include "util_progress.h"
#include "util_time.h"
#include "blender_sync.h"
#include "blender_session.h"
#include "blender_util.h"
CCL_NAMESPACE_BEGIN
bool BlenderSession::headless = false;
int BlenderSession::num_resumable_chunks = 0;
int BlenderSession::current_resumable_chunk = 0;
BlenderSession::BlenderSession(BL::RenderEngine& b_engine,
BL::UserPreferences& b_userpref,
BL::BlendData& b_data,
BL::Scene& b_scene)
: b_engine(b_engine),
b_userpref(b_userpref),
b_data(b_data),
b_render(b_engine.render()),
b_scene(b_scene),
b_v3d(PointerRNA_NULL),
b_rv3d(PointerRNA_NULL),
python_thread_state(NULL)
{
/* offline render */
width = render_resolution_x(b_render);
height = render_resolution_y(b_render);
background = true;
last_redraw_time = 0.0;
start_resize_time = 0.0;
}
BlenderSession::BlenderSession(BL::RenderEngine& b_engine,
BL::UserPreferences& b_userpref,
BL::BlendData& b_data,
BL::Scene& b_scene,
BL::SpaceView3D& b_v3d,
BL::RegionView3D& b_rv3d,
int width, int height)
: b_engine(b_engine),
b_userpref(b_userpref),
b_data(b_data),
b_render(b_scene.render()),
b_scene(b_scene),
b_v3d(b_v3d),
b_rv3d(b_rv3d),
width(width),
height(height),
python_thread_state(NULL)
{
/* 3d view render */
background = false;
last_redraw_time = 0.0;
start_resize_time = 0.0;
}
BlenderSession::~BlenderSession()
{
free_session();
}
void BlenderSession::create()
{
create_session();
if(b_v3d)
session->start();
}
void BlenderSession::create_session()
{
SessionParams session_params = BlenderSync::get_session_params(b_engine, b_userpref, b_scene, background);
bool is_cpu = session_params.device.type == DEVICE_CPU;
SceneParams scene_params = BlenderSync::get_scene_params(b_scene, background, is_cpu);
bool session_pause = BlenderSync::get_session_pause(b_scene, background);
/* reset status/progress */
last_status = "";
last_error = "";
last_progress = -1.0f;
start_resize_time = 0.0;
/* create scene */
scene = new Scene(scene_params, session_params.device);
/* setup callbacks for builtin image support */
scene->image_manager->builtin_image_info_cb = function_bind(&BlenderSession::builtin_image_info, this, _1, _2, _3, _4, _5, _6, _7);
scene->image_manager->builtin_image_pixels_cb = function_bind(&BlenderSession::builtin_image_pixels, this, _1, _2, _3);
scene->image_manager->builtin_image_float_pixels_cb = function_bind(&BlenderSession::builtin_image_float_pixels, this, _1, _2, _3);
/* create session */
session = new Session(session_params);
session->scene = scene;
session->progress.set_update_callback(function_bind(&BlenderSession::tag_redraw, this));
session->progress.set_cancel_callback(function_bind(&BlenderSession::test_cancel, this));
session->set_pause(session_pause);
/* create sync */
sync = new BlenderSync(b_engine, b_data, b_scene, scene, !background, session->progress, is_cpu);
BL::Object b_camera_override(b_engine.camera_override());
if(b_v3d) {
if(session_pause == false) {
/* full data sync */
sync->sync_view(b_v3d, b_rv3d, width, height);
sync->sync_data(b_render,
b_v3d,
b_camera_override,
width, height,
&python_thread_state,
b_rlay_name.c_str());
}
}
else {
/* for final render we will do full data sync per render layer, only
* do some basic syncing here, no objects or materials for speed */
sync->sync_render_layers(b_v3d, NULL);
sync->sync_integrator();
sync->sync_camera(b_render, b_camera_override, width, height, "");
}
/* set buffer parameters */
BufferParams buffer_params = BlenderSync::get_buffer_params(b_render, b_v3d, b_rv3d, scene->camera, width, height);
session->reset(buffer_params, session_params.samples);
b_engine.use_highlight_tiles(session_params.progressive_refine == false);
update_resumable_tile_manager(session_params.samples);
}
void BlenderSession::reset_session(BL::BlendData& b_data_, BL::Scene& b_scene_)
{
b_data = b_data_;
b_render = b_engine.render();
b_scene = b_scene_;
SessionParams session_params = BlenderSync::get_session_params(b_engine, b_userpref, b_scene, background);
const bool is_cpu = session_params.device.type == DEVICE_CPU;
SceneParams scene_params = BlenderSync::get_scene_params(b_scene, background, is_cpu);
width = render_resolution_x(b_render);
height = render_resolution_y(b_render);
if(scene->params.modified(scene_params) ||
session->params.modified(session_params) ||
!scene_params.persistent_data)
{
/* if scene or session parameters changed, it's easier to simply re-create
* them rather than trying to distinguish which settings need to be updated
*/
delete session;
create_session();
return;
}
session->progress.reset();
scene->reset();
session->tile_manager.set_tile_order(session_params.tile_order);
/* peak memory usage should show current render peak, not peak for all renders
* made by this render session
*/
session->stats.mem_peak = session->stats.mem_used;
/* sync object should be re-created */
sync = new BlenderSync(b_engine, b_data, b_scene, scene, !background, session->progress, is_cpu);
/* for final render we will do full data sync per render layer, only
* do some basic syncing here, no objects or materials for speed */
BL::Object b_camera_override(b_engine.camera_override());
sync->sync_render_layers(b_v3d, NULL);
sync->sync_integrator();
sync->sync_camera(b_render, b_camera_override, width, height, "");
BL::SpaceView3D b_null_space_view3d(PointerRNA_NULL);
BL::RegionView3D b_null_region_view3d(PointerRNA_NULL);
BufferParams buffer_params = BlenderSync::get_buffer_params(b_render,
b_null_space_view3d,
b_null_region_view3d,
scene->camera,
width, height);
session->reset(buffer_params, session_params.samples);
b_engine.use_highlight_tiles(session_params.progressive_refine == false);
/* reset time */
start_resize_time = 0.0;
}
void BlenderSession::free_session()
{
if(sync)
delete sync;
delete session;
}
static PassType get_pass_type(BL::RenderPass& b_pass)
{
switch(b_pass.type()) {
case BL::RenderPass::type_COMBINED:
return PASS_COMBINED;
case BL::RenderPass::type_Z:
return PASS_DEPTH;
case BL::RenderPass::type_MIST:
return PASS_MIST;
case BL::RenderPass::type_NORMAL:
return PASS_NORMAL;
case BL::RenderPass::type_OBJECT_INDEX:
return PASS_OBJECT_ID;
case BL::RenderPass::type_UV:
return PASS_UV;
case BL::RenderPass::type_VECTOR:
return PASS_MOTION;
case BL::RenderPass::type_MATERIAL_INDEX:
return PASS_MATERIAL_ID;
case BL::RenderPass::type_DIFFUSE_DIRECT:
return PASS_DIFFUSE_DIRECT;
case BL::RenderPass::type_GLOSSY_DIRECT:
return PASS_GLOSSY_DIRECT;
case BL::RenderPass::type_TRANSMISSION_DIRECT:
return PASS_TRANSMISSION_DIRECT;
case BL::RenderPass::type_SUBSURFACE_DIRECT:
return PASS_SUBSURFACE_DIRECT;
case BL::RenderPass::type_DIFFUSE_INDIRECT:
return PASS_DIFFUSE_INDIRECT;
case BL::RenderPass::type_GLOSSY_INDIRECT:
return PASS_GLOSSY_INDIRECT;
case BL::RenderPass::type_TRANSMISSION_INDIRECT:
return PASS_TRANSMISSION_INDIRECT;
case BL::RenderPass::type_SUBSURFACE_INDIRECT:
return PASS_SUBSURFACE_INDIRECT;
case BL::RenderPass::type_DIFFUSE_COLOR:
return PASS_DIFFUSE_COLOR;
case BL::RenderPass::type_GLOSSY_COLOR:
return PASS_GLOSSY_COLOR;
case BL::RenderPass::type_TRANSMISSION_COLOR:
return PASS_TRANSMISSION_COLOR;
case BL::RenderPass::type_SUBSURFACE_COLOR:
return PASS_SUBSURFACE_COLOR;
case BL::RenderPass::type_EMIT:
return PASS_EMISSION;
case BL::RenderPass::type_ENVIRONMENT:
return PASS_BACKGROUND;
case BL::RenderPass::type_AO:
return PASS_AO;
case BL::RenderPass::type_SHADOW:
return PASS_SHADOW;
case BL::RenderPass::type_DIFFUSE:
case BL::RenderPass::type_COLOR:
case BL::RenderPass::type_REFRACTION:
case BL::RenderPass::type_SPECULAR:
case BL::RenderPass::type_REFLECTION:
return PASS_NONE;
#ifdef WITH_CYCLES_DEBUG
case BL::RenderPass::type_DEBUG:
{
if(b_pass.debug_type() == BL::RenderPass::debug_type_BVH_TRAVERSAL_STEPS)
return PASS_BVH_TRAVERSAL_STEPS;
if(b_pass.debug_type() == BL::RenderPass::debug_type_BVH_TRAVERSED_INSTANCES)
return PASS_BVH_TRAVERSED_INSTANCES;
if(b_pass.debug_type() == BL::RenderPass::debug_type_RAY_BOUNCES)
return PASS_RAY_BOUNCES;
break;
}
#endif
}
return PASS_NONE;
}
static ShaderEvalType get_shader_type(const string& pass_type)
{
const char *shader_type = pass_type.c_str();
/* data passes */
if(strcmp(shader_type, "NORMAL")==0)
return SHADER_EVAL_NORMAL;
else if(strcmp(shader_type, "UV")==0)
return SHADER_EVAL_UV;
else if(strcmp(shader_type, "DIFFUSE_COLOR")==0)
return SHADER_EVAL_DIFFUSE_COLOR;
else if(strcmp(shader_type, "GLOSSY_COLOR")==0)
return SHADER_EVAL_GLOSSY_COLOR;
else if(strcmp(shader_type, "TRANSMISSION_COLOR")==0)
return SHADER_EVAL_TRANSMISSION_COLOR;
else if(strcmp(shader_type, "SUBSURFACE_COLOR")==0)
return SHADER_EVAL_SUBSURFACE_COLOR;
else if(strcmp(shader_type, "EMIT")==0)
return SHADER_EVAL_EMISSION;
/* light passes */
else if(strcmp(shader_type, "AO")==0)
return SHADER_EVAL_AO;
else if(strcmp(shader_type, "COMBINED")==0)
return SHADER_EVAL_COMBINED;
else if(strcmp(shader_type, "SHADOW")==0)
return SHADER_EVAL_SHADOW;
else if(strcmp(shader_type, "DIFFUSE")==0)
return SHADER_EVAL_DIFFUSE;
else if(strcmp(shader_type, "GLOSSY")==0)
return SHADER_EVAL_GLOSSY;
else if(strcmp(shader_type, "TRANSMISSION")==0)
return SHADER_EVAL_TRANSMISSION;
else if(strcmp(shader_type, "SUBSURFACE")==0)
return SHADER_EVAL_SUBSURFACE;
/* extra */
else if(strcmp(shader_type, "ENVIRONMENT")==0)
return SHADER_EVAL_ENVIRONMENT;
else
return SHADER_EVAL_BAKE;
}
static BL::RenderResult begin_render_result(BL::RenderEngine& b_engine,
int x, int y,
int w, int h,
const char *layername,
const char *viewname)
{
return b_engine.begin_result(x, y, w, h, layername, viewname);
}
static void end_render_result(BL::RenderEngine& b_engine,
BL::RenderResult& b_rr,
bool cancel,
bool do_merge_results)
{
b_engine.end_result(b_rr, (int)cancel, (int)do_merge_results);
}
void BlenderSession::do_write_update_render_tile(RenderTile& rtile, bool do_update_only)
{
BufferParams& params = rtile.buffers->params;
int x = params.full_x - session->tile_manager.params.full_x;
int y = params.full_y - session->tile_manager.params.full_y;
int w = params.width;
int h = params.height;
/* get render result */
BL::RenderResult b_rr = begin_render_result(b_engine, x, y, w, h, b_rlay_name.c_str(), b_rview_name.c_str());
/* can happen if the intersected rectangle gives 0 width or height */
if(b_rr.ptr.data == NULL) {
return;
}
BL::RenderResult::layers_iterator b_single_rlay;
b_rr.layers.begin(b_single_rlay);
/* layer will be missing if it was disabled in the UI */
if(b_single_rlay == b_rr.layers.end())
return;
BL::RenderLayer b_rlay = *b_single_rlay;
if(do_update_only) {
/* update only needed */
if(rtile.sample != 0) {
/* sample would be zero at initial tile update, which is only needed
* to tag tile form blender side as IN PROGRESS for proper highlight
* no buffers should be sent to blender yet
*/
update_render_result(b_rr, b_rlay, rtile);
}
end_render_result(b_engine, b_rr, true, true);
}
else {
/* write result */
write_render_result(b_rr, b_rlay, rtile);
end_render_result(b_engine, b_rr, false, true);
}
}
void BlenderSession::write_render_tile(RenderTile& rtile)
{
do_write_update_render_tile(rtile, false);
}
void BlenderSession::update_render_tile(RenderTile& rtile)
{
/* use final write for preview renders, otherwise render result wouldn't be
* be updated in blender side
* would need to be investigated a bit further, but for now shall be fine
*/
if(!b_engine.is_preview())
do_write_update_render_tile(rtile, true);
else
do_write_update_render_tile(rtile, false);
}
void BlenderSession::render()
{
/* set callback to write out render results */
session->write_render_tile_cb = function_bind(&BlenderSession::write_render_tile, this, _1);
session->update_render_tile_cb = function_bind(&BlenderSession::update_render_tile, this, _1);
/* get buffer parameters */
SessionParams session_params = BlenderSync::get_session_params(b_engine, b_userpref, b_scene, background);
BufferParams buffer_params = BlenderSync::get_buffer_params(b_render, b_v3d, b_rv3d, scene->camera, width, height);
/* render each layer */
BL::RenderSettings r = b_scene.render();
BL::RenderSettings::layers_iterator b_layer_iter;
BL::RenderResult::views_iterator b_view_iter;
for(r.layers.begin(b_layer_iter); b_layer_iter != r.layers.end(); ++b_layer_iter) {
b_rlay_name = b_layer_iter->name();
/* temporary render result to find needed passes and views */
BL::RenderResult b_rr = begin_render_result(b_engine, 0, 0, 1, 1, b_rlay_name.c_str(), NULL);
BL::RenderResult::layers_iterator b_single_rlay;
b_rr.layers.begin(b_single_rlay);
/* layer will be missing if it was disabled in the UI */
if(b_single_rlay == b_rr.layers.end()) {
end_render_result(b_engine, b_rr, true, false);
continue;
}
BL::RenderLayer b_rlay = *b_single_rlay;
/* add passes */
vector<Pass> passes;
Pass::add(PASS_COMBINED, passes);
if(session_params.device.advanced_shading) {
/* loop over passes */
BL::RenderLayer::passes_iterator b_pass_iter;
for(b_rlay.passes.begin(b_pass_iter); b_pass_iter != b_rlay.passes.end(); ++b_pass_iter) {
BL::RenderPass b_pass(*b_pass_iter);
PassType pass_type = get_pass_type(b_pass);
if(pass_type == PASS_MOTION && scene->integrator->motion_blur)
continue;
if(pass_type != PASS_NONE)
Pass::add(pass_type, passes);
}
}
buffer_params.passes = passes;
scene->film->pass_alpha_threshold = b_layer_iter->pass_alpha_threshold();
scene->film->tag_passes_update(scene, passes);
scene->film->tag_update(scene);
scene->integrator->tag_update(scene);
for(b_rr.views.begin(b_view_iter); b_view_iter != b_rr.views.end(); ++b_view_iter) {
b_rview_name = b_view_iter->name();
/* set the current view */
b_engine.active_view_set(b_rview_name.c_str());
/* update scene */
BL::Object b_camera_override(b_engine.camera_override());
sync->sync_camera(b_render, b_camera_override, width, height, b_rview_name.c_str());
sync->sync_data(b_render,
b_v3d,
b_camera_override,
width, height,
&python_thread_state,
b_rlay_name.c_str());
/* Update number of samples per layer. */
int samples = sync->get_layer_samples();
bool bound_samples = sync->get_layer_bound_samples();
int effective_layer_samples;
if(samples != 0 && (!bound_samples || (samples < session_params.samples)))
effective_layer_samples = samples;
else
effective_layer_samples = session_params.samples;
/* Update tile manager if we're doing resumable render. */
update_resumable_tile_manager(effective_layer_samples);
/* Update session itself. */
session->reset(buffer_params, effective_layer_samples);
/* render */
session->start();
session->wait();
if(session->progress.get_cancel())
break;
}
/* free result without merging */
end_render_result(b_engine, b_rr, true, false);
if(session->progress.get_cancel())
break;
}
double total_time, render_time;
session->progress.get_time(total_time, render_time);
VLOG(1) << "Total render time: " << total_time;
VLOG(1) << "Render time (without synchronization): " << render_time;
/* clear callback */
session->write_render_tile_cb = function_null;
session->update_render_tile_cb = function_null;
/* free all memory used (host and device), so we wouldn't leave render
* engine with extra memory allocated
*/
session->device_free();
delete sync;
sync = NULL;
}
static void populate_bake_data(BakeData *data, const
int object_id,
BL::BakePixel& pixel_array,
const int num_pixels)
{
BL::BakePixel bp = pixel_array;
int i;
for(i=0; i < num_pixels; i++) {
if(bp.object_id() == object_id) {
data->set(i, bp.primitive_id(), bp.uv(), bp.du_dx(), bp.du_dy(), bp.dv_dx(), bp.dv_dy());
} else {
data->set_null(i);
}
bp = bp.next();
}
}
static int bake_pass_filter_get(const int pass_filter)
{
int flag = BAKE_FILTER_NONE;
if((pass_filter & BL::BakeSettings::pass_filter_DIRECT) != 0)
flag |= BAKE_FILTER_DIRECT;
if((pass_filter & BL::BakeSettings::pass_filter_INDIRECT) != 0)
flag |= BAKE_FILTER_INDIRECT;
if((pass_filter & BL::BakeSettings::pass_filter_COLOR) != 0)
flag |= BAKE_FILTER_COLOR;
if((pass_filter & BL::BakeSettings::pass_filter_DIFFUSE) != 0)
flag |= BAKE_FILTER_DIFFUSE;
if((pass_filter & BL::BakeSettings::pass_filter_GLOSSY) != 0)
flag |= BAKE_FILTER_GLOSSY;
if((pass_filter & BL::BakeSettings::pass_filter_TRANSMISSION) != 0)
flag |= BAKE_FILTER_TRANSMISSION;
if((pass_filter & BL::BakeSettings::pass_filter_SUBSURFACE) != 0)
flag |= BAKE_FILTER_SUBSURFACE;
if((pass_filter & BL::BakeSettings::pass_filter_EMIT) != 0)
flag |= BAKE_FILTER_EMISSION;
if((pass_filter & BL::BakeSettings::pass_filter_AO) != 0)
flag |= BAKE_FILTER_AO;
return flag;
}
void BlenderSession::bake(BL::Object& b_object,
const string& pass_type,
const int pass_filter,
const int object_id,
BL::BakePixel& pixel_array,
const size_t num_pixels,
const int /*depth*/,
float result[])
{
ShaderEvalType shader_type = get_shader_type(pass_type);
size_t object_index = OBJECT_NONE;
int tri_offset = 0;
/* Set baking flag in advance, so kernel loading can check if we need
* any baking capabilities.
*/
scene->bake_manager->set_baking(true);
/* ensure kernels are loaded before we do any scene updates */
session->load_kernels();
if(session->progress.get_cancel())
return;
if(shader_type == SHADER_EVAL_UV) {
/* force UV to be available */
Pass::add(PASS_UV, scene->film->passes);
}
int bake_pass_filter = bake_pass_filter_get(pass_filter);
bake_pass_filter = BakeManager::shader_type_to_pass_filter(shader_type, bake_pass_filter);
/* force use_light_pass to be true if we bake more than just colors */
if (bake_pass_filter & ~BAKE_FILTER_COLOR) {
Pass::add(PASS_LIGHT, scene->film->passes);
}
/* create device and update scene */
scene->film->tag_update(scene);
scene->integrator->tag_update(scene);
/* update scene */
BL::Object b_camera_override(b_engine.camera_override());
sync->sync_camera(b_render, b_camera_override, width, height, "");
sync->sync_data(b_render,
b_v3d,
b_camera_override,
width, height,
&python_thread_state,
b_rlay_name.c_str());
/* get buffer parameters */
SessionParams session_params = BlenderSync::get_session_params(b_engine, b_userpref, b_scene, background);
BufferParams buffer_params = BlenderSync::get_buffer_params(b_render, b_v3d, b_rv3d, scene->camera, width, height);
scene->bake_manager->set_shader_limit((size_t)b_engine.tile_x(), (size_t)b_engine.tile_y());
/* set number of samples */
session->tile_manager.set_samples(session_params.samples);
session->reset(buffer_params, session_params.samples);
session->update_scene();
/* find object index. todo: is arbitrary - copied from mesh_displace.cpp */
for(size_t i = 0; i < scene->objects.size(); i++) {
if(strcmp(scene->objects[i]->name.c_str(), b_object.name().c_str()) == 0) {
object_index = i;
tri_offset = scene->objects[i]->mesh->tri_offset;
break;
}
}
/* when used, non-instanced convention: object = ~object */
int object = ~object_index;
BakeData *bake_data = scene->bake_manager->init(object, tri_offset, num_pixels);
populate_bake_data(bake_data, object_id, pixel_array, num_pixels);
/* set number of samples */
session->tile_manager.set_samples(session_params.samples);
session->reset(buffer_params, session_params.samples);
session->update_scene();
session->progress.set_update_callback(function_bind(&BlenderSession::update_bake_progress, this));
scene->bake_manager->bake(scene->device, &scene->dscene, scene, session->progress, shader_type, bake_pass_filter, bake_data, result);
/* free all memory used (host and device), so we wouldn't leave render
* engine with extra memory allocated
*/
session->device_free();
delete sync;
sync = NULL;
}
void BlenderSession::do_write_update_render_result(BL::RenderResult& b_rr,
BL::RenderLayer& b_rlay,
RenderTile& rtile,
bool do_update_only)
{
RenderBuffers *buffers = rtile.buffers;
/* copy data from device */
if(!buffers->copy_from_device())
return;
BufferParams& params = buffers->params;
float exposure = scene->film->exposure;
vector<float> pixels(params.width*params.height*4);
/* Adjust absolute sample number to the range. */
int sample = rtile.sample;
const int range_start_sample = session->tile_manager.range_start_sample;
if(range_start_sample != -1) {
sample -= range_start_sample;
}
if(!do_update_only) {
/* copy each pass */
BL::RenderLayer::passes_iterator b_iter;
for(b_rlay.passes.begin(b_iter); b_iter != b_rlay.passes.end(); ++b_iter) {
BL::RenderPass b_pass(*b_iter);
/* find matching pass type */
PassType pass_type = get_pass_type(b_pass);
int components = b_pass.channels();
/* copy pixels */
if(!buffers->get_pass_rect(pass_type, exposure, sample, components, &pixels[0]))
memset(&pixels[0], 0, pixels.size()*sizeof(float));
b_pass.rect(&pixels[0]);
}
}
else {
/* copy combined pass */
BL::RenderPass b_combined_pass(b_rlay.passes.find_by_type(BL::RenderPass::type_COMBINED, b_rview_name.c_str()));
if(buffers->get_pass_rect(PASS_COMBINED, exposure, sample, 4, &pixels[0]))
b_combined_pass.rect(&pixels[0]);
}
/* tag result as updated */
b_engine.update_result(b_rr);
}
void BlenderSession::write_render_result(BL::RenderResult& b_rr,
BL::RenderLayer& b_rlay,
RenderTile& rtile)
{
do_write_update_render_result(b_rr, b_rlay, rtile, false);
}
void BlenderSession::update_render_result(BL::RenderResult& b_rr,
BL::RenderLayer& b_rlay,
RenderTile& rtile)
{
do_write_update_render_result(b_rr, b_rlay, rtile, true);
}
void BlenderSession::synchronize()
{
/* only used for viewport render */
if(!b_v3d)
return;
/* on session/scene parameter changes, we recreate session entirely */
SessionParams session_params = BlenderSync::get_session_params(b_engine, b_userpref, b_scene, background);
const bool is_cpu = session_params.device.type == DEVICE_CPU;
SceneParams scene_params = BlenderSync::get_scene_params(b_scene, background, is_cpu);
bool session_pause = BlenderSync::get_session_pause(b_scene, background);
if(session->params.modified(session_params) ||
scene->params.modified(scene_params))
{
free_session();
create_session();
session->start();
return;
}
/* increase samples, but never decrease */
session->set_samples(session_params.samples);
session->set_pause(session_pause);
/* copy recalc flags, outside of mutex so we can decide to do the real
* synchronization at a later time to not block on running updates */
sync->sync_recalc();
/* don't do synchronization if on pause */
if(session_pause) {
tag_update();
return;
}
/* try to acquire mutex. if we don't want to or can't, come back later */
if(!session->ready_to_reset() || !session->scene->mutex.try_lock()) {
tag_update();
return;
}
/* data and camera synchronize */
BL::Object b_camera_override(b_engine.camera_override());
sync->sync_data(b_render,
b_v3d,
b_camera_override,
width, height,
&python_thread_state,
b_rlay_name.c_str());
if(b_rv3d)
sync->sync_view(b_v3d, b_rv3d, width, height);
else
sync->sync_camera(b_render, b_camera_override, width, height, "");
/* unlock */
session->scene->mutex.unlock();
/* reset if needed */
if(scene->need_reset()) {
BufferParams buffer_params = BlenderSync::get_buffer_params(b_render, b_v3d, b_rv3d, scene->camera, width, height);
session->reset(buffer_params, session_params.samples);
/* reset time */
start_resize_time = 0.0;
}
}
bool BlenderSession::draw(int w, int h)
{
/* pause in redraw in case update is not being called due to final render */
session->set_pause(BlenderSync::get_session_pause(b_scene, background));
/* before drawing, we verify camera and viewport size changes, because
* we do not get update callbacks for those, we must detect them here */
if(session->ready_to_reset()) {
bool reset = false;
/* if dimensions changed, reset */
if(width != w || height != h) {
if(start_resize_time == 0.0) {
/* don't react immediately to resizes to avoid flickery resizing
* of the viewport, and some window managers changing the window
* size temporarily on unminimize */
start_resize_time = time_dt();
tag_redraw();
}
else if(time_dt() - start_resize_time < 0.2) {
tag_redraw();
}
else {
width = w;
height = h;
reset = true;
}
}
/* try to acquire mutex. if we can't, come back later */
if(!session->scene->mutex.try_lock()) {
tag_update();
}
else {
/* update camera from 3d view */
sync->sync_view(b_v3d, b_rv3d, width, height);
if(scene->camera->need_update)
reset = true;
session->scene->mutex.unlock();
}
/* reset if requested */
if(reset) {
SessionParams session_params = BlenderSync::get_session_params(b_engine, b_userpref, b_scene, background);
BufferParams buffer_params = BlenderSync::get_buffer_params(b_render, b_v3d, b_rv3d, scene->camera, width, height);
bool session_pause = BlenderSync::get_session_pause(b_scene, background);
if(session_pause == false) {
session->reset(buffer_params, session_params.samples);
start_resize_time = 0.0;
}
}
}
else {
tag_update();
}
/* update status and progress for 3d view draw */
update_status_progress();
/* draw */
BufferParams buffer_params = BlenderSync::get_buffer_params(b_render, b_v3d, b_rv3d, scene->camera, width, height);
DeviceDrawParams draw_params;
if(session->params.display_buffer_linear) {
draw_params.bind_display_space_shader_cb = function_bind(&BL::RenderEngine::bind_display_space_shader, &b_engine, b_scene);
draw_params.unbind_display_space_shader_cb = function_bind(&BL::RenderEngine::unbind_display_space_shader, &b_engine);
}
return !session->draw(buffer_params, draw_params);
}
void BlenderSession::get_status(string& status, string& substatus)
{
session->progress.get_status(status, substatus);
}
void BlenderSession::get_progress(float& progress, double& total_time, double& render_time)
{
double tile_time;
int tile, sample, samples_per_tile;
int tile_total = session->tile_manager.state.num_tiles;
int samples = session->tile_manager.state.sample + 1;
int total_samples = session->tile_manager.get_num_effective_samples();
session->progress.get_tile(tile, total_time, render_time, tile_time);
sample = session->progress.get_sample();
samples_per_tile = session->tile_manager.get_num_effective_samples();
if(background && samples_per_tile && tile_total)
progress = ((float)sample / (float)(tile_total * samples_per_tile));
else if(!background && samples > 0 && total_samples != INT_MAX)
progress = ((float)samples) / total_samples;
else
progress = 0.0;
}
void BlenderSession::update_bake_progress()
{
float progress;
int sample, samples_per_task, parts_total;
sample = session->progress.get_sample();
samples_per_task = scene->bake_manager->num_samples;
parts_total = scene->bake_manager->num_parts;
if(samples_per_task)
progress = ((float)sample / (float)(parts_total * samples_per_task));
else
progress = 0.0;
if(progress != last_progress) {
b_engine.update_progress(progress);
last_progress = progress;
}
}
void BlenderSession::update_status_progress()
{
string timestatus, status, substatus;
string scene = "";
float progress;
double total_time, remaining_time = 0, render_time;
char time_str[128];
float mem_used = (float)session->stats.mem_used / 1024.0f / 1024.0f;
float mem_peak = (float)session->stats.mem_peak / 1024.0f / 1024.0f;
get_status(status, substatus);
get_progress(progress, total_time, render_time);
if(progress > 0)
remaining_time = (1.0 - (double)progress) * (render_time / (double)progress);
if(background) {
scene += " | " + b_scene.name();
if(b_rlay_name != "")
scene += ", " + b_rlay_name;
if(b_rview_name != "")
scene += ", " + b_rview_name;
}
else {
BLI_timecode_string_from_time_simple(time_str, sizeof(time_str), total_time);
timestatus = "Time:" + string(time_str) + " | ";
}
if(remaining_time > 0) {
BLI_timecode_string_from_time_simple(time_str, sizeof(time_str), remaining_time);
timestatus += "Remaining:" + string(time_str) + " | ";
}
timestatus += string_printf("Mem:%.2fM, Peak:%.2fM", (double)mem_used, (double)mem_peak);
if(status.size() > 0)
status = " | " + status;
if(substatus.size() > 0)
status += " | " + substatus;
if(status != last_status) {
b_engine.update_stats("", (timestatus + scene + status).c_str());
b_engine.update_memory_stats(mem_used, mem_peak);
last_status = status;
}
if(progress != last_progress) {
b_engine.update_progress(progress);
last_progress = progress;
}
if(session->progress.get_error()) {
string error = session->progress.get_error_message();
if(error != last_error) {
/* TODO(sergey): Currently C++ RNA API doesn't let us to
* use mnemonic name for the variable. Would be nice to
* have this figured out.
*
* For until then, 1 << 5 means RPT_ERROR.
*/
b_engine.report(1 << 5, error.c_str());
b_engine.error_set(error.c_str());
last_error = error;
}
}
}
void BlenderSession::tag_update()
{
/* tell blender that we want to get another update callback */
b_engine.tag_update();
}
void BlenderSession::tag_redraw()
{
if(background) {
/* update stats and progress, only for background here because
* in 3d view we do it in draw for thread safety reasons */
update_status_progress();
/* offline render, redraw if timeout passed */
if(time_dt() - last_redraw_time > 1.0) {
b_engine.tag_redraw();
last_redraw_time = time_dt();
}
}
else {
/* tell blender that we want to redraw */
b_engine.tag_redraw();
}
}
void BlenderSession::test_cancel()
{
/* test if we need to cancel rendering */
if(background)
if(b_engine.test_break())
session->progress.set_cancel("Cancelled");
}
/* builtin image file name is actually an image datablock name with
* absolute sequence frame number concatenated via '@' character
*
* this function splits frame from builtin name
*/
int BlenderSession::builtin_image_frame(const string &builtin_name)
{
int last = builtin_name.find_last_of('@');
return atoi(builtin_name.substr(last + 1, builtin_name.size() - last - 1).c_str());
}
void BlenderSession::builtin_image_info(const string &builtin_name, void *builtin_data, bool &is_float, int &width, int &height, int &depth, int &channels)
{
/* empty image */
is_float = false;
width = 1;
height = 1;
depth = 0;
channels = 0;
if(!builtin_data)
return;
/* recover ID pointer */
PointerRNA ptr;
RNA_id_pointer_create((ID*)builtin_data, &ptr);
BL::ID b_id(ptr);
if(b_id.is_a(&RNA_Image)) {
/* image data */
BL::Image b_image(b_id);
is_float = b_image.is_float();
width = b_image.size()[0];
height = b_image.size()[1];
depth = 1;
channels = b_image.channels();
}
else if(b_id.is_a(&RNA_Object)) {
/* smoke volume data */
BL::Object b_ob(b_id);
BL::SmokeDomainSettings b_domain = object_smoke_domain_find(b_ob);
is_float = true;
depth = 1;
channels = 1;
if(!b_domain)
return;
if(builtin_name == Attribute::standard_name(ATTR_STD_VOLUME_DENSITY) ||
builtin_name == Attribute::standard_name(ATTR_STD_VOLUME_FLAME))
channels = 1;
else if(builtin_name == Attribute::standard_name(ATTR_STD_VOLUME_COLOR))
channels = 4;
else
return;
int3 resolution = get_int3(b_domain.domain_resolution());
int amplify = (b_domain.use_high_resolution())? b_domain.amplify() + 1: 1;
width = resolution.x * amplify;
height = resolution.y * amplify;
depth = resolution.z * amplify;
}
else {
/* TODO(sergey): Check we're indeed in shader node tree. */
PointerRNA ptr;
RNA_pointer_create(NULL, &RNA_Node, builtin_data, &ptr);
BL::Node b_node(ptr);
if(b_node.is_a(&RNA_ShaderNodeTexPointDensity)) {
BL::ShaderNodeTexPointDensity b_point_density_node(b_node);
channels = 4;
width = height = depth = b_point_density_node.resolution();
is_float = true;
}
}
}
bool BlenderSession::builtin_image_pixels(const string &builtin_name, void *builtin_data, unsigned char *pixels)
{
if(!builtin_data)
return false;
int frame = builtin_image_frame(builtin_name);
PointerRNA ptr;
RNA_id_pointer_create((ID*)builtin_data, &ptr);
BL::Image b_image(ptr);
int width = b_image.size()[0];
int height = b_image.size()[1];
int channels = b_image.channels();
unsigned char *image_pixels;
image_pixels = image_get_pixels_for_frame(b_image, frame);
size_t num_pixels = ((size_t)width) * height;
if(image_pixels) {
memcpy(pixels, image_pixels, num_pixels * channels * sizeof(unsigned char));
MEM_freeN(image_pixels);
}
else {
if(channels == 1) {
memset(pixels, 0, num_pixels * sizeof(unsigned char));
}
else {
unsigned char *cp = pixels;
for(size_t i = 0; i < num_pixels; i++, cp += channels) {
cp[0] = 255;
cp[1] = 0;
cp[2] = 255;
if(channels == 4)
cp[3] = 255;
}
}
}
/* premultiply, byte images are always straight for blender */
unsigned char *cp = pixels;
for(size_t i = 0; i < num_pixels; i++, cp += channels) {
cp[0] = (cp[0] * cp[3]) >> 8;
cp[1] = (cp[1] * cp[3]) >> 8;
cp[2] = (cp[2] * cp[3]) >> 8;
}
return true;
}
bool BlenderSession::builtin_image_float_pixels(const string &builtin_name, void *builtin_data, float *pixels)
{
if(!builtin_data)
return false;
PointerRNA ptr;
RNA_id_pointer_create((ID*)builtin_data, &ptr);
BL::ID b_id(ptr);
if(b_id.is_a(&RNA_Image)) {
/* image data */
BL::Image b_image(b_id);
int frame = builtin_image_frame(builtin_name);
int width = b_image.size()[0];
int height = b_image.size()[1];
int channels = b_image.channels();
float *image_pixels;
image_pixels = image_get_float_pixels_for_frame(b_image, frame);
size_t num_pixels = ((size_t)width) * height;
if(image_pixels) {
memcpy(pixels, image_pixels, num_pixels * channels * sizeof(float));
MEM_freeN(image_pixels);
}
else {
if(channels == 1) {
memset(pixels, 0, num_pixels * sizeof(float));
}
else {
float *fp = pixels;
for(int i = 0; i < num_pixels; i++, fp += channels) {
fp[0] = 1.0f;
fp[1] = 0.0f;
fp[2] = 1.0f;
if(channels == 4)
fp[3] = 1.0f;
}
}
}
return true;
}
else if(b_id.is_a(&RNA_Object)) {
/* smoke volume data */
BL::Object b_ob(b_id);
BL::SmokeDomainSettings b_domain = object_smoke_domain_find(b_ob);
if(!b_domain)
return false;
int3 resolution = get_int3(b_domain.domain_resolution());
int length, amplify = (b_domain.use_high_resolution())? b_domain.amplify() + 1: 1;
int width = resolution.x * amplify;
int height = resolution.y * amplify;
int depth = resolution.z * amplify;
size_t num_pixels = ((size_t)width) * height * depth;
if(builtin_name == Attribute::standard_name(ATTR_STD_VOLUME_DENSITY)) {
SmokeDomainSettings_density_grid_get_length(&b_domain.ptr, &length);
if(length == num_pixels) {
SmokeDomainSettings_density_grid_get(&b_domain.ptr, pixels);
return true;
}
}
else if(builtin_name == Attribute::standard_name(ATTR_STD_VOLUME_FLAME)) {
/* this is in range 0..1, and interpreted by the OpenGL smoke viewer
* as 1500..3000 K with the first part faded to zero density */
SmokeDomainSettings_flame_grid_get_length(&b_domain.ptr, &length);
if(length == num_pixels) {
SmokeDomainSettings_flame_grid_get(&b_domain.ptr, pixels);
return true;
}
}
else if(builtin_name == Attribute::standard_name(ATTR_STD_VOLUME_COLOR)) {
/* the RGB is "premultiplied" by density for better interpolation results */
SmokeDomainSettings_color_grid_get_length(&b_domain.ptr, &length);
if(length == num_pixels*4) {
SmokeDomainSettings_color_grid_get(&b_domain.ptr, pixels);
return true;
}
}
else {
fprintf(stderr, "Cycles error: unknown volume attribute, skipping\n");
pixels[0] = 0.0f;
return false;
}
fprintf(stderr, "Cycles error: unexpected smoke volume resolution, skipping\n");
}
else {
/* TODO(sergey): Check we're indeed in shader node tree. */
PointerRNA ptr;
RNA_pointer_create(NULL, &RNA_Node, builtin_data, &ptr);
BL::Node b_node(ptr);
if(b_node.is_a(&RNA_ShaderNodeTexPointDensity)) {
BL::ShaderNodeTexPointDensity b_point_density_node(b_node);
int length;
int settings = background ? 1 : 0; /* 1 - render settings, 0 - vewport settings. */
b_point_density_node.calc_point_density(b_scene, settings, &length, &pixels);
}
}
return false;
}
void BlenderSession::update_resumable_tile_manager(int num_samples)
{
const int num_resumable_chunks = BlenderSession::num_resumable_chunks,
current_resumable_chunk = BlenderSession::current_resumable_chunk;
if(num_resumable_chunks == 0) {
return;
}
int num_samples_per_chunk = (int)ceilf((float)num_samples / num_resumable_chunks);
int range_start_sample = num_samples_per_chunk * (current_resumable_chunk - 1);
int range_num_samples = num_samples_per_chunk;
if(range_start_sample + range_num_samples > num_samples) {
range_num_samples = num_samples - range_num_samples;
}
VLOG(1) << "Samples range start is " << range_start_sample << ", "
<< "number of samples to render is " << range_num_samples;
session->tile_manager.range_start_sample = range_start_sample;
session->tile_manager.range_num_samples = range_num_samples;
}
CCL_NAMESPACE_END
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