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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2021 Blender Foundation.
*/
#include "BLI_hash_tables.hh"
#include "BLI_rect.h"
#include "BLI_vector.hh"
#include "RE_pipeline.h"
#include "eevee_instance.hh"
#include "eevee_renderpasses.hh"
namespace blender::eevee {
class Instance;
/* -------------------------------------------------------------------- */
/** \name RenderPasses
* \{ */
void RenderPasses::init(const int extent[2], const rcti *output_rect)
{
const Scene *scene = inst_.scene;
eRenderPassBit enabled_passes;
if (inst_.render_layer) {
enabled_passes = to_render_passes_bits(inst_.render_layer->passflag);
/* Cannot output motion vectors when using motion blur. */
if (scene->eevee.flag & SCE_EEVEE_MOTION_BLUR_ENABLED) {
enabled_passes &= ~RENDERPASS_VECTOR;
}
}
else if (inst_.v3d) {
enabled_passes = to_render_passes_bits(inst_.v3d->shading.render_pass);
/* We need the depth pass for compositing overlays or GPencil. */
if (!DRW_state_is_scene_render()) {
enabled_passes |= RENDERPASS_DEPTH;
}
}
else {
enabled_passes = RENDERPASS_COMBINED;
}
const bool use_log_encoding = scene->eevee.flag & SCE_EEVEE_FILM_LOG_ENCODING;
rcti fallback_rect;
if (BLI_rcti_is_empty(output_rect)) {
BLI_rcti_init(&fallback_rect, 0, extent[0], 0, extent[1]);
output_rect = &fallback_rect;
}
/* HACK to iterate over all passes. */
enabled_passes_ = RENDERPASS_ALL;
for (RenderPassItem rpi : *this) {
bool enable = (enabled_passes & rpi.pass_bit) != 0;
if (enable && rpi.film == nullptr) {
rpi.film = new Film(inst_,
to_render_passes_data_type(rpi.pass_bit, use_log_encoding),
to_render_passes_name(rpi.pass_bit));
}
else if (!enable && rpi.film != nullptr) {
/* Delete unused passes. */
delete rpi.film;
rpi.film = nullptr;
}
if (rpi.film) {
rpi.film->init(extent, output_rect);
}
}
enabled_passes_ = enabled_passes;
}
/** \} */
} // namespace blender::eevee
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