godot/servers/rendering/renderer_rd/environment/fog.cpp

129 lines
4.7 KiB
C++

/*************************************************************************/
/* fog.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "fog.h"
using namespace RendererRD;
Fog *Fog::singleton = nullptr;
Fog::Fog() {
singleton = this;
}
Fog::~Fog() {
singleton = nullptr;
}
/* FOG VOLUMES */
RID Fog::fog_volume_allocate() {
return fog_volume_owner.allocate_rid();
}
void Fog::fog_volume_initialize(RID p_rid) {
fog_volume_owner.initialize_rid(p_rid, FogVolume());
}
void Fog::fog_free(RID p_rid) {
FogVolume *fog_volume = fog_volume_owner.get_or_null(p_rid);
fog_volume->dependency.deleted_notify(p_rid);
fog_volume_owner.free(p_rid);
}
void Fog::fog_volume_set_shape(RID p_fog_volume, RS::FogVolumeShape p_shape) {
FogVolume *fog_volume = fog_volume_owner.get_or_null(p_fog_volume);
ERR_FAIL_COND(!fog_volume);
if (p_shape == fog_volume->shape) {
return;
}
fog_volume->shape = p_shape;
fog_volume->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_AABB);
}
void Fog::fog_volume_set_extents(RID p_fog_volume, const Vector3 &p_extents) {
FogVolume *fog_volume = fog_volume_owner.get_or_null(p_fog_volume);
ERR_FAIL_COND(!fog_volume);
fog_volume->extents = p_extents;
fog_volume->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_AABB);
}
void Fog::fog_volume_set_material(RID p_fog_volume, RID p_material) {
FogVolume *fog_volume = fog_volume_owner.get_or_null(p_fog_volume);
ERR_FAIL_COND(!fog_volume);
fog_volume->material = p_material;
}
RID Fog::fog_volume_get_material(RID p_fog_volume) const {
FogVolume *fog_volume = fog_volume_owner.get_or_null(p_fog_volume);
ERR_FAIL_COND_V(!fog_volume, RID());
return fog_volume->material;
}
RS::FogVolumeShape Fog::fog_volume_get_shape(RID p_fog_volume) const {
FogVolume *fog_volume = fog_volume_owner.get_or_null(p_fog_volume);
ERR_FAIL_COND_V(!fog_volume, RS::FOG_VOLUME_SHAPE_BOX);
return fog_volume->shape;
}
AABB Fog::fog_volume_get_aabb(RID p_fog_volume) const {
FogVolume *fog_volume = fog_volume_owner.get_or_null(p_fog_volume);
ERR_FAIL_COND_V(!fog_volume, AABB());
switch (fog_volume->shape) {
case RS::FOG_VOLUME_SHAPE_ELLIPSOID:
case RS::FOG_VOLUME_SHAPE_CONE:
case RS::FOG_VOLUME_SHAPE_CYLINDER:
case RS::FOG_VOLUME_SHAPE_BOX: {
AABB aabb;
aabb.position = -fog_volume->extents;
aabb.size = fog_volume->extents * 2;
return aabb;
}
default: {
// Need some size otherwise will get culled
return AABB(Vector3(-1, -1, -1), Vector3(2, 2, 2));
}
}
return AABB();
}
Vector3 Fog::fog_volume_get_extents(RID p_fog_volume) const {
const FogVolume *fog_volume = fog_volume_owner.get_or_null(p_fog_volume);
ERR_FAIL_COND_V(!fog_volume, Vector3());
return fog_volume->extents;
}