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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2021 Blender Foundation.
*/
/** \file
* \ingroup eevee
*
* An instance contains all structures needed to do a complete render.
*/
#include <sstream>
#include "BKE_global.h"
#include "BKE_object.h"
#include "BLI_rect.h"
#include "DEG_depsgraph_query.h"
#include "DNA_ID.h"
#include "DNA_lightprobe_types.h"
#include "DNA_modifier_types.h"
#include "eevee_instance.hh"
namespace blender::eevee {
/* -------------------------------------------------------------------- */
/** \name Initialization
*
* Initialization functions need to be called once at the start of a frame.
* Active camera, render extent and enabled render passes are immutable until next init.
* This takes care of resizing output buffers and view in case a parameter changed.
* IMPORTANT: xxx.init() functions are NOT meant to acquire and allocate DRW resources.
* Any attempt to do so will likely produce use after free situations.
* \{ */
void Instance::init(const int2 &output_res,
const rcti *output_rect,
RenderEngine *render_,
Depsgraph *depsgraph_,
const LightProbe *light_probe_,
Object *camera_object_,
const RenderLayer *render_layer_,
const DRWView *drw_view_,
const View3D *v3d_,
const RegionView3D *rv3d_)
{
UNUSED_VARS(light_probe_, output_rect);
render = render_;
depsgraph = depsgraph_;
camera_orig_object = camera_object_;
render_layer = render_layer_;
drw_view = drw_view_;
v3d = v3d_;
rv3d = rv3d_;
info = "";
update_eval_members();
main_view.init(output_res);
}
void Instance::set_time(float time)
{
BLI_assert(render);
DRW_render_set_time(render, depsgraph, floorf(time), fractf(time));
update_eval_members();
}
void Instance::update_eval_members()
{
scene = DEG_get_evaluated_scene(depsgraph);
view_layer = DEG_get_evaluated_view_layer(depsgraph);
camera_eval_object = (camera_orig_object) ?
DEG_get_evaluated_object(depsgraph, camera_orig_object) :
nullptr;
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Sync
*
* Sync will gather data from the scene that can change over a time step (i.e: motion steps).
* IMPORTANT: xxx.sync() functions area responsible for creating DRW resources (i.e: DRWView) as
* well as querying temp texture pool. All DRWPasses should be ready by the end end_sync().
* \{ */
void Instance::begin_sync()
{
materials.begin_sync();
velocity.begin_sync();
pipelines.sync();
main_view.sync();
world.sync();
}
void Instance::object_sync(Object *ob)
{
const bool is_renderable_type = ELEM(ob->type, OB_CURVES, OB_GPENCIL, OB_MESH);
const int ob_visibility = DRW_object_visibility_in_active_context(ob);
const bool partsys_is_visible = (ob_visibility & OB_VISIBLE_PARTICLES) != 0 &&
(ob->type == OB_MESH);
const bool object_is_visible = DRW_object_is_renderable(ob) &&
(ob_visibility & OB_VISIBLE_SELF) != 0;
if (!is_renderable_type || (!partsys_is_visible && !object_is_visible)) {
return;
}
ObjectHandle &ob_handle = sync.sync_object(ob);
if (partsys_is_visible && ob != DRW_context_state_get()->object_edit) {
LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
if (md->type == eModifierType_ParticleSystem) {
sync.sync_curves(ob, ob_handle, md);
}
}
}
if (object_is_visible) {
switch (ob->type) {
case OB_LAMP:
break;
case OB_MESH:
case OB_CURVES_LEGACY:
case OB_SURF:
case OB_FONT:
case OB_MBALL: {
sync.sync_mesh(ob, ob_handle);
break;
}
case OB_VOLUME:
break;
case OB_CURVES:
sync.sync_curves(ob, ob_handle);
break;
case OB_GPENCIL:
sync.sync_gpencil(ob, ob_handle);
break;
default:
break;
}
}
ob_handle.reset_recalc_flag();
}
void Instance::end_sync()
{
velocity.end_sync();
}
void Instance::render_sync()
{
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Rendering
* \{ */
/**
* Conceptually renders one sample per pixel.
* Everything based on random sampling should be done here (i.e: DRWViews jitter)
**/
void Instance::render_sample()
{
main_view.render();
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Interface
* \{ */
void Instance::render_frame(RenderLayer *render_layer, const char *view_name)
{
UNUSED_VARS(render_layer, view_name);
}
void Instance::draw_viewport(DefaultFramebufferList *dfbl)
{
UNUSED_VARS(dfbl);
render_sample();
velocity.step_swap();
if (materials.queued_shaders_count > 0) {
std::stringstream ss;
ss << "Compiling Shaders " << materials.queued_shaders_count;
info = ss.str();
}
}
/** \} */
} // namespace blender::eevee
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