385ee5c70b
This allows light sources to be specified in physical light units in addition to the regular energy multiplier. In order to avoid loss of precision at high values, brightness values are premultiplied by an exposure normalization value. In support of Physical Light Units this PR also renames CameraEffects to CameraAttributes.
587 lines
18 KiB
C++
587 lines
18 KiB
C++
/*************************************************************************/
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/* light_storage.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifdef GLES3_ENABLED
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#include "light_storage.h"
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#include "config.h"
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#include "texture_storage.h"
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using namespace GLES3;
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LightStorage *LightStorage::singleton = nullptr;
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LightStorage *LightStorage::get_singleton() {
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return singleton;
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}
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LightStorage::LightStorage() {
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singleton = this;
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}
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LightStorage::~LightStorage() {
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singleton = nullptr;
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}
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/* Light API */
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void LightStorage::_light_initialize(RID p_light, RS::LightType p_type) {
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Light light;
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light.type = p_type;
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light.param[RS::LIGHT_PARAM_ENERGY] = 1.0;
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light.param[RS::LIGHT_PARAM_INDIRECT_ENERGY] = 1.0;
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light.param[RS::LIGHT_PARAM_VOLUMETRIC_FOG_ENERGY] = 1.0;
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light.param[RS::LIGHT_PARAM_SPECULAR] = 0.5;
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light.param[RS::LIGHT_PARAM_RANGE] = 1.0;
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light.param[RS::LIGHT_PARAM_SIZE] = 0.0;
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light.param[RS::LIGHT_PARAM_ATTENUATION] = 1.0;
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light.param[RS::LIGHT_PARAM_SPOT_ANGLE] = 45;
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light.param[RS::LIGHT_PARAM_SPOT_ATTENUATION] = 1.0;
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light.param[RS::LIGHT_PARAM_SHADOW_MAX_DISTANCE] = 0;
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light.param[RS::LIGHT_PARAM_SHADOW_SPLIT_1_OFFSET] = 0.1;
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light.param[RS::LIGHT_PARAM_SHADOW_SPLIT_2_OFFSET] = 0.3;
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light.param[RS::LIGHT_PARAM_SHADOW_SPLIT_3_OFFSET] = 0.6;
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light.param[RS::LIGHT_PARAM_SHADOW_FADE_START] = 0.8;
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light.param[RS::LIGHT_PARAM_SHADOW_NORMAL_BIAS] = 1.0;
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light.param[RS::LIGHT_PARAM_SHADOW_OPACITY] = 1.0;
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light.param[RS::LIGHT_PARAM_SHADOW_BIAS] = 0.02;
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light.param[RS::LIGHT_PARAM_SHADOW_BLUR] = 0;
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light.param[RS::LIGHT_PARAM_SHADOW_PANCAKE_SIZE] = 20.0;
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light.param[RS::LIGHT_PARAM_TRANSMITTANCE_BIAS] = 0.05;
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light_owner.initialize_rid(p_light, light);
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}
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RID LightStorage::directional_light_allocate() {
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return light_owner.allocate_rid();
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}
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void LightStorage::directional_light_initialize(RID p_rid) {
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_light_initialize(p_rid, RS::LIGHT_DIRECTIONAL);
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}
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RID LightStorage::omni_light_allocate() {
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return light_owner.allocate_rid();
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}
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void LightStorage::omni_light_initialize(RID p_rid) {
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_light_initialize(p_rid, RS::LIGHT_OMNI);
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}
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RID LightStorage::spot_light_allocate() {
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return light_owner.allocate_rid();
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}
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void LightStorage::spot_light_initialize(RID p_rid) {
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_light_initialize(p_rid, RS::LIGHT_SPOT);
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}
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void LightStorage::light_free(RID p_rid) {
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light_set_projector(p_rid, RID()); //clear projector
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// delete the texture
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Light *light = light_owner.get_or_null(p_rid);
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light->dependency.deleted_notify(p_rid);
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light_owner.free(p_rid);
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}
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void LightStorage::light_set_color(RID p_light, const Color &p_color) {
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Light *light = light_owner.get_or_null(p_light);
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ERR_FAIL_COND(!light);
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light->color = p_color;
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}
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void LightStorage::light_set_param(RID p_light, RS::LightParam p_param, float p_value) {
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Light *light = light_owner.get_or_null(p_light);
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ERR_FAIL_COND(!light);
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ERR_FAIL_INDEX(p_param, RS::LIGHT_PARAM_MAX);
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if (light->param[p_param] == p_value) {
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return;
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}
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switch (p_param) {
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case RS::LIGHT_PARAM_RANGE:
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case RS::LIGHT_PARAM_SPOT_ANGLE:
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case RS::LIGHT_PARAM_SHADOW_MAX_DISTANCE:
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case RS::LIGHT_PARAM_SHADOW_SPLIT_1_OFFSET:
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case RS::LIGHT_PARAM_SHADOW_SPLIT_2_OFFSET:
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case RS::LIGHT_PARAM_SHADOW_SPLIT_3_OFFSET:
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case RS::LIGHT_PARAM_SHADOW_NORMAL_BIAS:
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case RS::LIGHT_PARAM_SHADOW_PANCAKE_SIZE:
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case RS::LIGHT_PARAM_SHADOW_BIAS: {
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light->version++;
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light->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_LIGHT);
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} break;
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case RS::LIGHT_PARAM_SIZE: {
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if ((light->param[p_param] > CMP_EPSILON) != (p_value > CMP_EPSILON)) {
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//changing from no size to size and the opposite
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light->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_LIGHT_SOFT_SHADOW_AND_PROJECTOR);
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}
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} break;
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default: {
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}
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}
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light->param[p_param] = p_value;
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}
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void LightStorage::light_set_shadow(RID p_light, bool p_enabled) {
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Light *light = light_owner.get_or_null(p_light);
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ERR_FAIL_COND(!light);
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light->shadow = p_enabled;
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light->version++;
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light->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_LIGHT);
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}
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void LightStorage::light_set_projector(RID p_light, RID p_texture) {
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GLES3::TextureStorage *texture_storage = GLES3::TextureStorage::get_singleton();
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Light *light = light_owner.get_or_null(p_light);
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ERR_FAIL_COND(!light);
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if (light->projector == p_texture) {
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return;
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}
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if (light->type != RS::LIGHT_DIRECTIONAL && light->projector.is_valid()) {
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texture_storage->texture_remove_from_decal_atlas(light->projector, light->type == RS::LIGHT_OMNI);
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}
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light->projector = p_texture;
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if (light->type != RS::LIGHT_DIRECTIONAL) {
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if (light->projector.is_valid()) {
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texture_storage->texture_add_to_decal_atlas(light->projector, light->type == RS::LIGHT_OMNI);
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}
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light->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_LIGHT_SOFT_SHADOW_AND_PROJECTOR);
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}
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}
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void LightStorage::light_set_negative(RID p_light, bool p_enable) {
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Light *light = light_owner.get_or_null(p_light);
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ERR_FAIL_COND(!light);
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light->negative = p_enable;
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}
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void LightStorage::light_set_cull_mask(RID p_light, uint32_t p_mask) {
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Light *light = light_owner.get_or_null(p_light);
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ERR_FAIL_COND(!light);
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light->cull_mask = p_mask;
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light->version++;
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light->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_LIGHT);
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}
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void LightStorage::light_set_distance_fade(RID p_light, bool p_enabled, float p_begin, float p_shadow, float p_length) {
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Light *light = light_owner.get_or_null(p_light);
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ERR_FAIL_COND(!light);
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light->distance_fade = p_enabled;
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light->distance_fade_begin = p_begin;
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light->distance_fade_shadow = p_shadow;
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light->distance_fade_length = p_length;
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}
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void LightStorage::light_set_reverse_cull_face_mode(RID p_light, bool p_enabled) {
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Light *light = light_owner.get_or_null(p_light);
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ERR_FAIL_COND(!light);
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light->reverse_cull = p_enabled;
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light->version++;
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light->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_LIGHT);
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}
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void LightStorage::light_set_bake_mode(RID p_light, RS::LightBakeMode p_bake_mode) {
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Light *light = light_owner.get_or_null(p_light);
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ERR_FAIL_COND(!light);
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light->bake_mode = p_bake_mode;
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light->version++;
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light->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_LIGHT);
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}
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void LightStorage::light_omni_set_shadow_mode(RID p_light, RS::LightOmniShadowMode p_mode) {
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Light *light = light_owner.get_or_null(p_light);
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ERR_FAIL_COND(!light);
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light->omni_shadow_mode = p_mode;
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light->version++;
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light->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_LIGHT);
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}
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RS::LightOmniShadowMode LightStorage::light_omni_get_shadow_mode(RID p_light) {
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const Light *light = light_owner.get_or_null(p_light);
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ERR_FAIL_COND_V(!light, RS::LIGHT_OMNI_SHADOW_CUBE);
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return light->omni_shadow_mode;
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}
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void LightStorage::light_directional_set_shadow_mode(RID p_light, RS::LightDirectionalShadowMode p_mode) {
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Light *light = light_owner.get_or_null(p_light);
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ERR_FAIL_COND(!light);
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light->directional_shadow_mode = p_mode;
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light->version++;
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light->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_LIGHT);
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}
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void LightStorage::light_directional_set_blend_splits(RID p_light, bool p_enable) {
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Light *light = light_owner.get_or_null(p_light);
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ERR_FAIL_COND(!light);
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light->directional_blend_splits = p_enable;
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light->version++;
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light->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_LIGHT);
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}
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bool LightStorage::light_directional_get_blend_splits(RID p_light) const {
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const Light *light = light_owner.get_or_null(p_light);
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ERR_FAIL_COND_V(!light, false);
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return light->directional_blend_splits;
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}
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void LightStorage::light_directional_set_sky_mode(RID p_light, RS::LightDirectionalSkyMode p_mode) {
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Light *light = light_owner.get_or_null(p_light);
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ERR_FAIL_COND(!light);
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light->directional_sky_mode = p_mode;
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}
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RS::LightDirectionalSkyMode LightStorage::light_directional_get_sky_mode(RID p_light) const {
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const Light *light = light_owner.get_or_null(p_light);
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ERR_FAIL_COND_V(!light, RS::LIGHT_DIRECTIONAL_SKY_MODE_LIGHT_AND_SKY);
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return light->directional_sky_mode;
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}
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RS::LightDirectionalShadowMode LightStorage::light_directional_get_shadow_mode(RID p_light) {
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const Light *light = light_owner.get_or_null(p_light);
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ERR_FAIL_COND_V(!light, RS::LIGHT_DIRECTIONAL_SHADOW_ORTHOGONAL);
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return light->directional_shadow_mode;
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}
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RS::LightBakeMode LightStorage::light_get_bake_mode(RID p_light) {
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const Light *light = light_owner.get_or_null(p_light);
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ERR_FAIL_COND_V(!light, RS::LIGHT_BAKE_DISABLED);
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return light->bake_mode;
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}
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uint64_t LightStorage::light_get_version(RID p_light) const {
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const Light *light = light_owner.get_or_null(p_light);
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ERR_FAIL_COND_V(!light, 0);
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return light->version;
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}
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AABB LightStorage::light_get_aabb(RID p_light) const {
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const Light *light = light_owner.get_or_null(p_light);
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ERR_FAIL_COND_V(!light, AABB());
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switch (light->type) {
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case RS::LIGHT_SPOT: {
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float len = light->param[RS::LIGHT_PARAM_RANGE];
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float size = Math::tan(Math::deg_to_rad(light->param[RS::LIGHT_PARAM_SPOT_ANGLE])) * len;
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return AABB(Vector3(-size, -size, -len), Vector3(size * 2, size * 2, len));
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};
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case RS::LIGHT_OMNI: {
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float r = light->param[RS::LIGHT_PARAM_RANGE];
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return AABB(-Vector3(r, r, r), Vector3(r, r, r) * 2);
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};
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case RS::LIGHT_DIRECTIONAL: {
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return AABB();
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};
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}
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ERR_FAIL_V(AABB());
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}
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/* PROBE API */
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RID LightStorage::reflection_probe_allocate() {
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return RID();
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}
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void LightStorage::reflection_probe_initialize(RID p_rid) {
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}
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void LightStorage::reflection_probe_free(RID p_rid) {
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}
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void LightStorage::reflection_probe_set_update_mode(RID p_probe, RS::ReflectionProbeUpdateMode p_mode) {
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}
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void LightStorage::reflection_probe_set_intensity(RID p_probe, float p_intensity) {
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}
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void LightStorage::reflection_probe_set_ambient_mode(RID p_probe, RS::ReflectionProbeAmbientMode p_mode) {
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}
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void LightStorage::reflection_probe_set_ambient_color(RID p_probe, const Color &p_color) {
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}
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void LightStorage::reflection_probe_set_ambient_energy(RID p_probe, float p_energy) {
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}
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void LightStorage::reflection_probe_set_max_distance(RID p_probe, float p_distance) {
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}
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void LightStorage::reflection_probe_set_extents(RID p_probe, const Vector3 &p_extents) {
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}
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void LightStorage::reflection_probe_set_origin_offset(RID p_probe, const Vector3 &p_offset) {
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}
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void LightStorage::reflection_probe_set_as_interior(RID p_probe, bool p_enable) {
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}
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void LightStorage::reflection_probe_set_enable_box_projection(RID p_probe, bool p_enable) {
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}
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void LightStorage::reflection_probe_set_enable_shadows(RID p_probe, bool p_enable) {
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}
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void LightStorage::reflection_probe_set_cull_mask(RID p_probe, uint32_t p_layers) {
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}
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void LightStorage::reflection_probe_set_resolution(RID p_probe, int p_resolution) {
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}
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AABB LightStorage::reflection_probe_get_aabb(RID p_probe) const {
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return AABB();
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}
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RS::ReflectionProbeUpdateMode LightStorage::reflection_probe_get_update_mode(RID p_probe) const {
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return RenderingServer::REFLECTION_PROBE_UPDATE_ONCE;
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}
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uint32_t LightStorage::reflection_probe_get_cull_mask(RID p_probe) const {
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return 0;
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}
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Vector3 LightStorage::reflection_probe_get_extents(RID p_probe) const {
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return Vector3();
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}
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Vector3 LightStorage::reflection_probe_get_origin_offset(RID p_probe) const {
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return Vector3();
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}
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float LightStorage::reflection_probe_get_origin_max_distance(RID p_probe) const {
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return 0.0;
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}
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bool LightStorage::reflection_probe_renders_shadows(RID p_probe) const {
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return false;
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}
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void LightStorage::reflection_probe_set_mesh_lod_threshold(RID p_probe, float p_ratio) {
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}
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float LightStorage::reflection_probe_get_mesh_lod_threshold(RID p_probe) const {
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return 0.0;
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}
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/* LIGHTMAP CAPTURE */
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RID LightStorage::lightmap_allocate() {
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return lightmap_owner.allocate_rid();
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}
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void LightStorage::lightmap_initialize(RID p_rid) {
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lightmap_owner.initialize_rid(p_rid, Lightmap());
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}
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void LightStorage::lightmap_free(RID p_rid) {
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Lightmap *lightmap = lightmap_owner.get_or_null(p_rid);
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lightmap->dependency.deleted_notify(p_rid);
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lightmap_owner.free(p_rid);
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}
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void LightStorage::lightmap_set_textures(RID p_lightmap, RID p_light, bool p_uses_spherical_haromics) {
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}
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void LightStorage::lightmap_set_probe_bounds(RID p_lightmap, const AABB &p_bounds) {
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}
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void LightStorage::lightmap_set_probe_interior(RID p_lightmap, bool p_interior) {
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}
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void LightStorage::lightmap_set_probe_capture_data(RID p_lightmap, const PackedVector3Array &p_points, const PackedColorArray &p_point_sh, const PackedInt32Array &p_tetrahedra, const PackedInt32Array &p_bsp_tree) {
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}
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void LightStorage::lightmap_set_baked_exposure_normalization(RID p_lightmap, float p_exposure) {
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}
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PackedVector3Array LightStorage::lightmap_get_probe_capture_points(RID p_lightmap) const {
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return PackedVector3Array();
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}
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PackedColorArray LightStorage::lightmap_get_probe_capture_sh(RID p_lightmap) const {
|
|
return PackedColorArray();
|
|
}
|
|
|
|
PackedInt32Array LightStorage::lightmap_get_probe_capture_tetrahedra(RID p_lightmap) const {
|
|
return PackedInt32Array();
|
|
}
|
|
|
|
PackedInt32Array LightStorage::lightmap_get_probe_capture_bsp_tree(RID p_lightmap) const {
|
|
return PackedInt32Array();
|
|
}
|
|
|
|
AABB LightStorage::lightmap_get_aabb(RID p_lightmap) const {
|
|
return AABB();
|
|
}
|
|
|
|
void LightStorage::lightmap_tap_sh_light(RID p_lightmap, const Vector3 &p_point, Color *r_sh) {
|
|
}
|
|
|
|
bool LightStorage::lightmap_is_interior(RID p_lightmap) const {
|
|
return false;
|
|
}
|
|
|
|
void LightStorage::lightmap_set_probe_capture_update_speed(float p_speed) {
|
|
}
|
|
|
|
float LightStorage::lightmap_get_probe_capture_update_speed() const {
|
|
return 0;
|
|
}
|
|
|
|
/* LIGHT SHADOW MAPPING */
|
|
/*
|
|
|
|
RID LightStorage::canvas_light_occluder_create() {
|
|
CanvasOccluder *co = memnew(CanvasOccluder);
|
|
co->index_id = 0;
|
|
co->vertex_id = 0;
|
|
co->len = 0;
|
|
|
|
return canvas_occluder_owner.make_rid(co);
|
|
}
|
|
|
|
void LightStorage::canvas_light_occluder_set_polylines(RID p_occluder, const PoolVector<Vector2> &p_lines) {
|
|
CanvasOccluder *co = canvas_occluder_owner.get(p_occluder);
|
|
ERR_FAIL_COND(!co);
|
|
|
|
co->lines = p_lines;
|
|
|
|
if (p_lines.size() != co->len) {
|
|
if (co->index_id) {
|
|
glDeleteBuffers(1, &co->index_id);
|
|
} if (co->vertex_id) {
|
|
glDeleteBuffers(1, &co->vertex_id);
|
|
}
|
|
|
|
co->index_id = 0;
|
|
co->vertex_id = 0;
|
|
co->len = 0;
|
|
}
|
|
|
|
if (p_lines.size()) {
|
|
PoolVector<float> geometry;
|
|
PoolVector<uint16_t> indices;
|
|
int lc = p_lines.size();
|
|
|
|
geometry.resize(lc * 6);
|
|
indices.resize(lc * 3);
|
|
|
|
PoolVector<float>::Write vw = geometry.write();
|
|
PoolVector<uint16_t>::Write iw = indices.write();
|
|
|
|
PoolVector<Vector2>::Read lr = p_lines.read();
|
|
|
|
const int POLY_HEIGHT = 16384;
|
|
|
|
for (int i = 0; i < lc / 2; i++) {
|
|
vw[i * 12 + 0] = lr[i * 2 + 0].x;
|
|
vw[i * 12 + 1] = lr[i * 2 + 0].y;
|
|
vw[i * 12 + 2] = POLY_HEIGHT;
|
|
|
|
vw[i * 12 + 3] = lr[i * 2 + 1].x;
|
|
vw[i * 12 + 4] = lr[i * 2 + 1].y;
|
|
vw[i * 12 + 5] = POLY_HEIGHT;
|
|
|
|
vw[i * 12 + 6] = lr[i * 2 + 1].x;
|
|
vw[i * 12 + 7] = lr[i * 2 + 1].y;
|
|
vw[i * 12 + 8] = -POLY_HEIGHT;
|
|
|
|
vw[i * 12 + 9] = lr[i * 2 + 0].x;
|
|
vw[i * 12 + 10] = lr[i * 2 + 0].y;
|
|
vw[i * 12 + 11] = -POLY_HEIGHT;
|
|
|
|
iw[i * 6 + 0] = i * 4 + 0;
|
|
iw[i * 6 + 1] = i * 4 + 1;
|
|
iw[i * 6 + 2] = i * 4 + 2;
|
|
|
|
iw[i * 6 + 3] = i * 4 + 2;
|
|
iw[i * 6 + 4] = i * 4 + 3;
|
|
iw[i * 6 + 5] = i * 4 + 0;
|
|
}
|
|
|
|
//if same buffer len is being set, just use BufferSubData to avoid a pipeline flush
|
|
|
|
if (!co->vertex_id) {
|
|
glGenBuffers(1, &co->vertex_id);
|
|
glBindBuffer(GL_ARRAY_BUFFER, co->vertex_id);
|
|
glBufferData(GL_ARRAY_BUFFER, lc * 6 * sizeof(real_t), vw.ptr(), GL_STATIC_DRAW);
|
|
} else {
|
|
glBindBuffer(GL_ARRAY_BUFFER, co->vertex_id);
|
|
glBufferSubData(GL_ARRAY_BUFFER, 0, lc * 6 * sizeof(real_t), vw.ptr());
|
|
}
|
|
|
|
glBindBuffer(GL_ARRAY_BUFFER, 0); //unbind
|
|
|
|
if (!co->index_id) {
|
|
glGenBuffers(1, &co->index_id);
|
|
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, co->index_id);
|
|
glBufferData(GL_ELEMENT_ARRAY_BUFFER, lc * 3 * sizeof(uint16_t), iw.ptr(), GL_DYNAMIC_DRAW);
|
|
} else {
|
|
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, co->index_id);
|
|
glBufferSubData(GL_ELEMENT_ARRAY_BUFFER, 0, lc * 3 * sizeof(uint16_t), iw.ptr());
|
|
}
|
|
|
|
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); //unbind
|
|
|
|
co->len = lc;
|
|
}
|
|
}
|
|
*/
|
|
|
|
#endif // !GLES3_ENABLED
|