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rasterizer_scene_gles3.cpp
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rasterizer_scene_gles3.cpp
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/*************************************************************************/
/* rasterizer_scene_gles3.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 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 "rasterizer_scene_gles3.h"
#include "core/math/math_funcs.h"
#include "core/os/os.h"
#include "core/project_settings.h"
#include "rasterizer_canvas_gles3.h"
#include "servers/camera/camera_feed.h"
#include "servers/visual/visual_server_raster.h"
#ifndef GLES_OVER_GL
#define glClearDepth glClearDepthf
#endif
static const GLenum _cube_side_enum[6] = {
GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
GL_TEXTURE_CUBE_MAP_POSITIVE_X,
GL_TEXTURE_CUBE_MAP_NEGATIVE_Y,
GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
GL_TEXTURE_CUBE_MAP_NEGATIVE_Z,
GL_TEXTURE_CUBE_MAP_POSITIVE_Z,
};
static _FORCE_INLINE_ void store_transform(const Transform &p_mtx, float *p_array) {
p_array[0] = p_mtx.basis.elements[0][0];
p_array[1] = p_mtx.basis.elements[1][0];
p_array[2] = p_mtx.basis.elements[2][0];
p_array[3] = 0;
p_array[4] = p_mtx.basis.elements[0][1];
p_array[5] = p_mtx.basis.elements[1][1];
p_array[6] = p_mtx.basis.elements[2][1];
p_array[7] = 0;
p_array[8] = p_mtx.basis.elements[0][2];
p_array[9] = p_mtx.basis.elements[1][2];
p_array[10] = p_mtx.basis.elements[2][2];
p_array[11] = 0;
p_array[12] = p_mtx.origin.x;
p_array[13] = p_mtx.origin.y;
p_array[14] = p_mtx.origin.z;
p_array[15] = 1;
}
static _FORCE_INLINE_ void store_camera(const CameraMatrix &p_mtx, float *p_array) {
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
p_array[i * 4 + j] = p_mtx.matrix[i][j];
}
}
}
/* SHADOW ATLAS API */
RID RasterizerSceneGLES3::shadow_atlas_create() {
ShadowAtlas *shadow_atlas = memnew(ShadowAtlas);
shadow_atlas->fbo = 0;
shadow_atlas->depth = 0;
shadow_atlas->size = 0;
shadow_atlas->smallest_subdiv = 0;
for (int i = 0; i < 4; i++) {
shadow_atlas->size_order[i] = i;
}
return shadow_atlas_owner.make_rid(shadow_atlas);
}
void RasterizerSceneGLES3::shadow_atlas_set_size(RID p_atlas, int p_size) {
ShadowAtlas *shadow_atlas = shadow_atlas_owner.getornull(p_atlas);
ERR_FAIL_COND(!shadow_atlas);
ERR_FAIL_COND(p_size < 0);
p_size = next_power_of_2(p_size);
if (p_size == shadow_atlas->size)
return;
// erasing atlas
if (shadow_atlas->fbo) {
glDeleteTextures(1, &shadow_atlas->depth);
glDeleteFramebuffers(1, &shadow_atlas->fbo);
shadow_atlas->depth = 0;
shadow_atlas->fbo = 0;
}
for (int i = 0; i < 4; i++) {
//clear subdivisions
shadow_atlas->quadrants[i].shadows.resize(0);
shadow_atlas->quadrants[i].shadows.resize(1 << shadow_atlas->quadrants[i].subdivision);
}
//erase shadow atlas reference from lights
for (Map<RID, uint32_t>::Element *E = shadow_atlas->shadow_owners.front(); E; E = E->next()) {
LightInstance *li = light_instance_owner.getornull(E->key());
ERR_CONTINUE(!li);
li->shadow_atlases.erase(p_atlas);
}
//clear owners
shadow_atlas->shadow_owners.clear();
shadow_atlas->size = p_size;
if (shadow_atlas->size) {
glGenFramebuffers(1, &shadow_atlas->fbo);
glBindFramebuffer(GL_FRAMEBUFFER, shadow_atlas->fbo);
// Create a texture for storing the depth
glActiveTexture(GL_TEXTURE0);
glGenTextures(1, &shadow_atlas->depth);
glBindTexture(GL_TEXTURE_2D, shadow_atlas->depth);
glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT24, shadow_atlas->size, shadow_atlas->size, 0,
GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT,
GL_TEXTURE_2D, shadow_atlas->depth, 0);
glViewport(0, 0, shadow_atlas->size, shadow_atlas->size);
glClearDepth(0.0f);
glClear(GL_DEPTH_BUFFER_BIT);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
}
}
void RasterizerSceneGLES3::shadow_atlas_set_quadrant_subdivision(RID p_atlas, int p_quadrant, int p_subdivision) {
ShadowAtlas *shadow_atlas = shadow_atlas_owner.getornull(p_atlas);
ERR_FAIL_COND(!shadow_atlas);
ERR_FAIL_INDEX(p_quadrant, 4);
ERR_FAIL_INDEX(p_subdivision, 16384);
uint32_t subdiv = next_power_of_2(p_subdivision);
if (subdiv & 0xaaaaaaaa) { //sqrt(subdiv) must be integer
subdiv <<= 1;
}
subdiv = int(Math::sqrt((float)subdiv));
//obtain the number that will be x*x
if (shadow_atlas->quadrants[p_quadrant].subdivision == subdiv)
return;
//erase all data from quadrant
for (int i = 0; i < shadow_atlas->quadrants[p_quadrant].shadows.size(); i++) {
if (shadow_atlas->quadrants[p_quadrant].shadows[i].owner.is_valid()) {
shadow_atlas->shadow_owners.erase(shadow_atlas->quadrants[p_quadrant].shadows[i].owner);
LightInstance *li = light_instance_owner.getornull(shadow_atlas->quadrants[p_quadrant].shadows[i].owner);
ERR_CONTINUE(!li);
li->shadow_atlases.erase(p_atlas);
}
}
shadow_atlas->quadrants[p_quadrant].shadows.resize(0);
shadow_atlas->quadrants[p_quadrant].shadows.resize(subdiv * subdiv);
shadow_atlas->quadrants[p_quadrant].subdivision = subdiv;
//cache the smallest subdiv (for faster allocation in light update)
shadow_atlas->smallest_subdiv = 1 << 30;
for (int i = 0; i < 4; i++) {
if (shadow_atlas->quadrants[i].subdivision) {
shadow_atlas->smallest_subdiv = MIN(shadow_atlas->smallest_subdiv, shadow_atlas->quadrants[i].subdivision);
}
}
if (shadow_atlas->smallest_subdiv == 1 << 30) {
shadow_atlas->smallest_subdiv = 0;
}
//resort the size orders, simple bublesort for 4 elements..
int swaps = 0;
do {
swaps = 0;
for (int i = 0; i < 3; i++) {
if (shadow_atlas->quadrants[shadow_atlas->size_order[i]].subdivision < shadow_atlas->quadrants[shadow_atlas->size_order[i + 1]].subdivision) {
SWAP(shadow_atlas->size_order[i], shadow_atlas->size_order[i + 1]);
swaps++;
}
}
} while (swaps > 0);
}
bool RasterizerSceneGLES3::_shadow_atlas_find_shadow(ShadowAtlas *shadow_atlas, int *p_in_quadrants, int p_quadrant_count, int p_current_subdiv, uint64_t p_tick, int &r_quadrant, int &r_shadow) {
for (int i = p_quadrant_count - 1; i >= 0; i--) {
int qidx = p_in_quadrants[i];
if (shadow_atlas->quadrants[qidx].subdivision == (uint32_t)p_current_subdiv) {
return false;
}
//look for an empty space
int sc = shadow_atlas->quadrants[qidx].shadows.size();
ShadowAtlas::Quadrant::Shadow *sarr = shadow_atlas->quadrants[qidx].shadows.ptrw();
int found_free_idx = -1; //found a free one
int found_used_idx = -1; //found existing one, must steal it
uint64_t min_pass = 0; // pass of the existing one, try to use the least recently used one (LRU fashion)
for (int j = 0; j < sc; j++) {
if (!sarr[j].owner.is_valid()) {
found_free_idx = j;
break;
}
LightInstance *sli = light_instance_owner.getornull(sarr[j].owner);
ERR_CONTINUE(!sli);
if (sli->last_scene_pass != scene_pass) {
//was just allocated, don't kill it so soon, wait a bit..
if (p_tick - sarr[j].alloc_tick < shadow_atlas_realloc_tolerance_msec)
continue;
if (found_used_idx == -1 || sli->last_scene_pass < min_pass) {
found_used_idx = j;
min_pass = sli->last_scene_pass;
}
}
}
if (found_free_idx == -1 && found_used_idx == -1)
continue; //nothing found
if (found_free_idx == -1 && found_used_idx != -1) {
found_free_idx = found_used_idx;
}
r_quadrant = qidx;
r_shadow = found_free_idx;
return true;
}
return false;
}
bool RasterizerSceneGLES3::shadow_atlas_update_light(RID p_atlas, RID p_light_intance, float p_coverage, uint64_t p_light_version) {
ShadowAtlas *shadow_atlas = shadow_atlas_owner.getornull(p_atlas);
ERR_FAIL_COND_V(!shadow_atlas, false);
LightInstance *li = light_instance_owner.getornull(p_light_intance);
ERR_FAIL_COND_V(!li, false);
if (shadow_atlas->size == 0 || shadow_atlas->smallest_subdiv == 0) {
return false;
}
uint32_t quad_size = shadow_atlas->size >> 1;
int desired_fit = MIN(quad_size / shadow_atlas->smallest_subdiv, next_power_of_2(quad_size * p_coverage));
int valid_quadrants[4];
int valid_quadrant_count = 0;
int best_size = -1; //best size found
int best_subdiv = -1; //subdiv for the best size
//find the quadrants this fits into, and the best possible size it can fit into
for (int i = 0; i < 4; i++) {
int q = shadow_atlas->size_order[i];
int sd = shadow_atlas->quadrants[q].subdivision;
if (sd == 0)
continue; //unused
int max_fit = quad_size / sd;
if (best_size != -1 && max_fit > best_size)
break; //too large
valid_quadrants[valid_quadrant_count++] = q;
best_subdiv = sd;
if (max_fit >= desired_fit) {
best_size = max_fit;
}
}
ERR_FAIL_COND_V(valid_quadrant_count == 0, false);
uint64_t tick = OS::get_singleton()->get_ticks_msec();
//see if it already exists
if (shadow_atlas->shadow_owners.has(p_light_intance)) {
//it does!
uint32_t key = shadow_atlas->shadow_owners[p_light_intance];
uint32_t q = (key >> ShadowAtlas::QUADRANT_SHIFT) & 0x3;
uint32_t s = key & ShadowAtlas::SHADOW_INDEX_MASK;
bool should_realloc = shadow_atlas->quadrants[q].subdivision != (uint32_t)best_subdiv && (shadow_atlas->quadrants[q].shadows[s].alloc_tick - tick > shadow_atlas_realloc_tolerance_msec);
bool should_redraw = shadow_atlas->quadrants[q].shadows[s].version != p_light_version;
if (!should_realloc) {
shadow_atlas->quadrants[q].shadows.write[s].version = p_light_version;
//already existing, see if it should redraw or it's just OK
return should_redraw;
}
int new_quadrant, new_shadow;
//find a better place
if (_shadow_atlas_find_shadow(shadow_atlas, valid_quadrants, valid_quadrant_count, shadow_atlas->quadrants[q].subdivision, tick, new_quadrant, new_shadow)) {
//found a better place!
ShadowAtlas::Quadrant::Shadow *sh = &shadow_atlas->quadrants[new_quadrant].shadows.write[new_shadow];
if (sh->owner.is_valid()) {
//is taken, but is invalid, erasing it
shadow_atlas->shadow_owners.erase(sh->owner);
LightInstance *sli = light_instance_owner.get(sh->owner);
sli->shadow_atlases.erase(p_atlas);
}
//erase previous
shadow_atlas->quadrants[q].shadows.write[s].version = 0;
shadow_atlas->quadrants[q].shadows.write[s].owner = RID();
sh->owner = p_light_intance;
sh->alloc_tick = tick;
sh->version = p_light_version;
li->shadow_atlases.insert(p_atlas);
//make new key
key = new_quadrant << ShadowAtlas::QUADRANT_SHIFT;
key |= new_shadow;
//update it in map
shadow_atlas->shadow_owners[p_light_intance] = key;
//make it dirty, as it should redraw anyway
return true;
}
//no better place for this shadow found, keep current
//already existing, see if it should redraw or it's just OK
shadow_atlas->quadrants[q].shadows.write[s].version = p_light_version;
return should_redraw;
}
int new_quadrant, new_shadow;
//find a better place
if (_shadow_atlas_find_shadow(shadow_atlas, valid_quadrants, valid_quadrant_count, -1, tick, new_quadrant, new_shadow)) {
//found a better place!
ShadowAtlas::Quadrant::Shadow *sh = &shadow_atlas->quadrants[new_quadrant].shadows.write[new_shadow];
if (sh->owner.is_valid()) {
//is taken, but is invalid, erasing it
shadow_atlas->shadow_owners.erase(sh->owner);
LightInstance *sli = light_instance_owner.get(sh->owner);
sli->shadow_atlases.erase(p_atlas);
}
sh->owner = p_light_intance;
sh->alloc_tick = tick;
sh->version = p_light_version;
li->shadow_atlases.insert(p_atlas);
//make new key
uint32_t key = new_quadrant << ShadowAtlas::QUADRANT_SHIFT;
key |= new_shadow;
//update it in map
shadow_atlas->shadow_owners[p_light_intance] = key;
//make it dirty, as it should redraw anyway
return true;
}
//no place to allocate this light, apologies
return false;
}
void RasterizerSceneGLES3::set_directional_shadow_count(int p_count) {
directional_shadow.light_count = p_count;
directional_shadow.current_light = 0;
}
int RasterizerSceneGLES3::get_directional_light_shadow_size(RID p_light_intance) {
ERR_FAIL_COND_V(directional_shadow.light_count == 0, 0);
int shadow_size;
if (directional_shadow.light_count == 1) {
shadow_size = directional_shadow.size;
} else {
shadow_size = directional_shadow.size / 2; //more than 4 not supported anyway
}
LightInstance *light_instance = light_instance_owner.getornull(p_light_intance);
ERR_FAIL_COND_V(!light_instance, 0);
switch (light_instance->light_ptr->directional_shadow_mode) {
case VS::LIGHT_DIRECTIONAL_SHADOW_ORTHOGONAL:
break; //none
case VS::LIGHT_DIRECTIONAL_SHADOW_PARALLEL_2_SPLITS:
case VS::LIGHT_DIRECTIONAL_SHADOW_PARALLEL_4_SPLITS: shadow_size /= 2; break;
}
return shadow_size;
}
//////////////////////////////////////////////////////
RID RasterizerSceneGLES3::reflection_atlas_create() {
ReflectionAtlas *reflection_atlas = memnew(ReflectionAtlas);
reflection_atlas->subdiv = 0;
reflection_atlas->color = 0;
reflection_atlas->size = 0;
for (int i = 0; i < 6; i++) {
reflection_atlas->fbo[i] = 0;
}
return reflection_atlas_owner.make_rid(reflection_atlas);
}
void RasterizerSceneGLES3::reflection_atlas_set_size(RID p_ref_atlas, int p_size) {
ReflectionAtlas *reflection_atlas = reflection_atlas_owner.getornull(p_ref_atlas);
ERR_FAIL_COND(!reflection_atlas);
int size = next_power_of_2(p_size);
if (size == reflection_atlas->size)
return;
if (reflection_atlas->size) {
for (int i = 0; i < 6; i++) {
glDeleteFramebuffers(1, &reflection_atlas->fbo[i]);
reflection_atlas->fbo[i] = 0;
}
glDeleteTextures(1, &reflection_atlas->color);
reflection_atlas->color = 0;
}
reflection_atlas->size = size;
for (int i = 0; i < reflection_atlas->reflections.size(); i++) {
//erase probes reference to this
if (reflection_atlas->reflections[i].owner.is_valid()) {
ReflectionProbeInstance *reflection_probe_instance = reflection_probe_instance_owner.getornull(reflection_atlas->reflections[i].owner);
reflection_atlas->reflections.write[i].owner = RID();
ERR_CONTINUE(!reflection_probe_instance);
reflection_probe_instance->reflection_atlas_index = -1;
reflection_probe_instance->atlas = RID();
reflection_probe_instance->render_step = -1;
}
}
if (reflection_atlas->size) {
bool use_float = true;
GLenum internal_format = use_float ? GL_RGBA16F : GL_RGB10_A2;
GLenum format = GL_RGBA;
GLenum type = use_float ? GL_HALF_FLOAT : GL_UNSIGNED_INT_2_10_10_10_REV;
// Create a texture for storing the color
glActiveTexture(GL_TEXTURE0);
glGenTextures(1, &reflection_atlas->color);
glBindTexture(GL_TEXTURE_2D, reflection_atlas->color);
int mmsize = reflection_atlas->size;
glTexStorage2DCustom(GL_TEXTURE_2D, 6, internal_format, mmsize, mmsize, format, type);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 5);
for (int i = 0; i < 6; i++) {
glGenFramebuffers(1, &reflection_atlas->fbo[i]);
glBindFramebuffer(GL_FRAMEBUFFER, reflection_atlas->fbo[i]);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, reflection_atlas->color, i);
GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
ERR_CONTINUE(status != GL_FRAMEBUFFER_COMPLETE);
glDisable(GL_SCISSOR_TEST);
glViewport(0, 0, mmsize, mmsize);
glClearColor(0, 0, 0, 0);
glClear(GL_COLOR_BUFFER_BIT); //it needs to be cleared, to avoid generating garbage
mmsize >>= 1;
}
}
}
void RasterizerSceneGLES3::reflection_atlas_set_subdivision(RID p_ref_atlas, int p_subdiv) {
ReflectionAtlas *reflection_atlas = reflection_atlas_owner.getornull(p_ref_atlas);
ERR_FAIL_COND(!reflection_atlas);
int subdiv = next_power_of_2(p_subdiv);
if (subdiv & 0xaaaaaaaa) { //sqrt(subdiv) must be integer
subdiv <<= 1;
}
subdiv = int(Math::sqrt((float)subdiv));
if (reflection_atlas->subdiv == subdiv)
return;
if (subdiv) {
for (int i = 0; i < reflection_atlas->reflections.size(); i++) {
//erase probes reference to this
if (reflection_atlas->reflections[i].owner.is_valid()) {
ReflectionProbeInstance *reflection_probe_instance = reflection_probe_instance_owner.getornull(reflection_atlas->reflections[i].owner);
reflection_atlas->reflections.write[i].owner = RID();
ERR_CONTINUE(!reflection_probe_instance);
reflection_probe_instance->reflection_atlas_index = -1;
reflection_probe_instance->atlas = RID();
reflection_probe_instance->render_step = -1;
}
}
}
reflection_atlas->subdiv = subdiv;
reflection_atlas->reflections.resize(subdiv * subdiv);
}
////////////////////////////////////////////////////
RID RasterizerSceneGLES3::reflection_probe_instance_create(RID p_probe) {
RasterizerStorageGLES3::ReflectionProbe *probe = storage->reflection_probe_owner.getornull(p_probe);
ERR_FAIL_COND_V(!probe, RID());
ReflectionProbeInstance *rpi = memnew(ReflectionProbeInstance);
rpi->probe_ptr = probe;
rpi->self = reflection_probe_instance_owner.make_rid(rpi);
rpi->probe = p_probe;
rpi->reflection_atlas_index = -1;
rpi->render_step = -1;
rpi->last_pass = 0;
return rpi->self;
}
void RasterizerSceneGLES3::reflection_probe_instance_set_transform(RID p_instance, const Transform &p_transform) {
ReflectionProbeInstance *rpi = reflection_probe_instance_owner.getornull(p_instance);
ERR_FAIL_COND(!rpi);
rpi->transform = p_transform;
}
void RasterizerSceneGLES3::reflection_probe_release_atlas_index(RID p_instance) {
ReflectionProbeInstance *rpi = reflection_probe_instance_owner.getornull(p_instance);
ERR_FAIL_COND(!rpi);
if (rpi->reflection_atlas_index == -1)
return;
ReflectionAtlas *reflection_atlas = reflection_atlas_owner.getornull(rpi->atlas);
ERR_FAIL_COND(!reflection_atlas);
ERR_FAIL_INDEX(rpi->reflection_atlas_index, reflection_atlas->reflections.size());
ERR_FAIL_COND(reflection_atlas->reflections[rpi->reflection_atlas_index].owner != rpi->self);
reflection_atlas->reflections.write[rpi->reflection_atlas_index].owner = RID();
rpi->reflection_atlas_index = -1;
rpi->atlas = RID();
rpi->render_step = -1;
}
bool RasterizerSceneGLES3::reflection_probe_instance_needs_redraw(RID p_instance) {
ReflectionProbeInstance *rpi = reflection_probe_instance_owner.getornull(p_instance);
ERR_FAIL_COND_V(!rpi, false);
return rpi->reflection_atlas_index == -1 || rpi->probe_ptr->update_mode == VS::REFLECTION_PROBE_UPDATE_ALWAYS;
}
bool RasterizerSceneGLES3::reflection_probe_instance_has_reflection(RID p_instance) {
ReflectionProbeInstance *rpi = reflection_probe_instance_owner.getornull(p_instance);
ERR_FAIL_COND_V(!rpi, false);
return rpi->reflection_atlas_index != -1;
}
bool RasterizerSceneGLES3::reflection_probe_instance_begin_render(RID p_instance, RID p_reflection_atlas) {
ReflectionProbeInstance *rpi = reflection_probe_instance_owner.getornull(p_instance);
ERR_FAIL_COND_V(!rpi, false);
rpi->render_step = 0;
if (rpi->reflection_atlas_index != -1) {
return true; //got one already
}
ReflectionAtlas *reflection_atlas = reflection_atlas_owner.getornull(p_reflection_atlas);
ERR_FAIL_COND_V(!reflection_atlas, false);
if (reflection_atlas->size == 0 || reflection_atlas->subdiv == 0) {
return false;
}
int best_free = -1;
int best_used = -1;
uint64_t best_used_frame = 0;
for (int i = 0; i < reflection_atlas->reflections.size(); i++) {
if (reflection_atlas->reflections[i].owner == RID()) {
best_free = i;
break;
}
if (rpi->render_step < 0 && reflection_atlas->reflections[i].last_frame < storage->frame.count &&
(best_used == -1 || reflection_atlas->reflections[i].last_frame < best_used_frame)) {
best_used = i;
best_used_frame = reflection_atlas->reflections[i].last_frame;
}
}
if (best_free == -1 && best_used == -1) {
return false; // sorry, can not do. Try again next frame.
}
if (best_free == -1) {
//find best from what is used
best_free = best_used;
ReflectionProbeInstance *victim_rpi = reflection_probe_instance_owner.getornull(reflection_atlas->reflections[best_free].owner);
ERR_FAIL_COND_V(!victim_rpi, false);
victim_rpi->atlas = RID();
victim_rpi->reflection_atlas_index = -1;
}
reflection_atlas->reflections.write[best_free].owner = p_instance;
reflection_atlas->reflections.write[best_free].last_frame = storage->frame.count;
rpi->reflection_atlas_index = best_free;
rpi->atlas = p_reflection_atlas;
rpi->render_step = 0;
return true;
}
bool RasterizerSceneGLES3::reflection_probe_instance_postprocess_step(RID p_instance) {
ReflectionProbeInstance *rpi = reflection_probe_instance_owner.getornull(p_instance);
ERR_FAIL_COND_V(!rpi, true);
ReflectionAtlas *reflection_atlas = reflection_atlas_owner.getornull(rpi->atlas);
ERR_FAIL_COND_V(!reflection_atlas, false);
ERR_FAIL_COND_V(rpi->render_step >= 6, true);
glBindFramebuffer(GL_FRAMEBUFFER, reflection_atlas->fbo[rpi->render_step]);
state.cube_to_dp_shader.bind();
int target_size = reflection_atlas->size / reflection_atlas->subdiv;
int cubemap_index = reflection_cubemaps.size() - 1;
for (int i = reflection_cubemaps.size() - 1; i >= 0; i--) {
//find appropriate cubemap to render to
if (reflection_cubemaps[i].size > target_size * 2)
break;
cubemap_index = i;
}
glDisable(GL_BLEND);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_CUBE_MAP, reflection_cubemaps[cubemap_index].cubemap);
glDisable(GL_CULL_FACE);
storage->shaders.cubemap_filter.set_conditional(CubemapFilterShaderGLES3::USE_DUAL_PARABOLOID, true);
storage->shaders.cubemap_filter.bind();
int cell_size = reflection_atlas->size / reflection_atlas->subdiv;
for (int i = 0; i < rpi->render_step; i++) {
cell_size >>= 1; //mipmaps!
}
int x = (rpi->reflection_atlas_index % reflection_atlas->subdiv) * cell_size;
int y = (rpi->reflection_atlas_index / reflection_atlas->subdiv) * cell_size;
int width = cell_size;
int height = cell_size;
storage->shaders.cubemap_filter.set_conditional(CubemapFilterShaderGLES3::USE_DIRECT_WRITE, rpi->render_step == 0);
storage->shaders.cubemap_filter.set_conditional(CubemapFilterShaderGLES3::LOW_QUALITY, rpi->probe_ptr->update_mode == VS::REFLECTION_PROBE_UPDATE_ALWAYS);
for (int i = 0; i < 2; i++) {
storage->shaders.cubemap_filter.set_uniform(CubemapFilterShaderGLES3::Z_FLIP, i == 0);
storage->shaders.cubemap_filter.set_uniform(CubemapFilterShaderGLES3::ROUGHNESS, rpi->render_step / 5.0);
uint32_t local_width = width, local_height = height;
uint32_t local_x = x, local_y = y;
local_height /= 2;
local_y += i * local_height;
glViewport(local_x, local_y, local_width, local_height);
_copy_screen();
}
storage->shaders.cubemap_filter.set_conditional(CubemapFilterShaderGLES3::USE_DIRECT_WRITE, false);
storage->shaders.cubemap_filter.set_conditional(CubemapFilterShaderGLES3::LOW_QUALITY, false);
rpi->render_step++;
return rpi->render_step == 6;
}
/* ENVIRONMENT API */
RID RasterizerSceneGLES3::environment_create() {
Environment *env = memnew(Environment);
return environment_owner.make_rid(env);
}
void RasterizerSceneGLES3::environment_set_background(RID p_env, VS::EnvironmentBG p_bg) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->bg_mode = p_bg;
}
void RasterizerSceneGLES3::environment_set_sky(RID p_env, RID p_sky) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->sky = p_sky;
}
void RasterizerSceneGLES3::environment_set_sky_custom_fov(RID p_env, float p_scale) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->sky_custom_fov = p_scale;
}
void RasterizerSceneGLES3::environment_set_sky_orientation(RID p_env, const Basis &p_orientation) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->sky_orientation = p_orientation;
}
void RasterizerSceneGLES3::environment_set_bg_color(RID p_env, const Color &p_color) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->bg_color = p_color;
}
void RasterizerSceneGLES3::environment_set_bg_energy(RID p_env, float p_energy) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->bg_energy = p_energy;
}
void RasterizerSceneGLES3::environment_set_canvas_max_layer(RID p_env, int p_max_layer) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->canvas_max_layer = p_max_layer;
}
void RasterizerSceneGLES3::environment_set_ambient_light(RID p_env, const Color &p_color, float p_energy, float p_sky_contribution) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->ambient_color = p_color;
env->ambient_energy = p_energy;
env->ambient_sky_contribution = p_sky_contribution;
}
void RasterizerSceneGLES3::environment_set_camera_feed_id(RID p_env, int p_camera_feed_id) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->camera_feed_id = p_camera_feed_id;
}
void RasterizerSceneGLES3::environment_set_dof_blur_far(RID p_env, bool p_enable, float p_distance, float p_transition, float p_amount, VS::EnvironmentDOFBlurQuality p_quality) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->dof_blur_far_enabled = p_enable;
env->dof_blur_far_distance = p_distance;
env->dof_blur_far_transition = p_transition;
env->dof_blur_far_amount = p_amount;
env->dof_blur_far_quality = p_quality;
}
void RasterizerSceneGLES3::environment_set_dof_blur_near(RID p_env, bool p_enable, float p_distance, float p_transition, float p_amount, VS::EnvironmentDOFBlurQuality p_quality) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->dof_blur_near_enabled = p_enable;
env->dof_blur_near_distance = p_distance;
env->dof_blur_near_transition = p_transition;
env->dof_blur_near_amount = p_amount;
env->dof_blur_near_quality = p_quality;
}
void RasterizerSceneGLES3::environment_set_glow(RID p_env, bool p_enable, int p_level_flags, float p_intensity, float p_strength, float p_bloom_threshold, VS::EnvironmentGlowBlendMode p_blend_mode, float p_hdr_bleed_threshold, float p_hdr_bleed_scale, float p_hdr_luminance_cap, bool p_bicubic_upscale) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->glow_enabled = p_enable;
env->glow_levels = p_level_flags;
env->glow_intensity = p_intensity;
env->glow_strength = p_strength;
env->glow_bloom = p_bloom_threshold;
env->glow_blend_mode = p_blend_mode;
env->glow_hdr_bleed_threshold = p_hdr_bleed_threshold;
env->glow_hdr_bleed_scale = p_hdr_bleed_scale;
env->glow_hdr_luminance_cap = p_hdr_luminance_cap;
env->glow_bicubic_upscale = p_bicubic_upscale;
}
void RasterizerSceneGLES3::environment_set_fog(RID p_env, bool p_enable, float p_begin, float p_end, RID p_gradient_texture) {
}
void RasterizerSceneGLES3::environment_set_ssr(RID p_env, bool p_enable, int p_max_steps, float p_fade_in, float p_fade_out, float p_depth_tolerance, bool p_roughness) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->ssr_enabled = p_enable;
env->ssr_max_steps = p_max_steps;
env->ssr_fade_in = p_fade_in;
env->ssr_fade_out = p_fade_out;
env->ssr_depth_tolerance = p_depth_tolerance;
env->ssr_roughness = p_roughness;
}
void RasterizerSceneGLES3::environment_set_ssao(RID p_env, bool p_enable, float p_radius, float p_intensity, float p_radius2, float p_intensity2, float p_bias, float p_light_affect, float p_ao_channel_affect, const Color &p_color, VS::EnvironmentSSAOQuality p_quality, VisualServer::EnvironmentSSAOBlur p_blur, float p_bilateral_sharpness) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->ssao_enabled = p_enable;
env->ssao_radius = p_radius;
env->ssao_intensity = p_intensity;
env->ssao_radius2 = p_radius2;
env->ssao_intensity2 = p_intensity2;
env->ssao_bias = p_bias;
env->ssao_light_affect = p_light_affect;
env->ssao_ao_channel_affect = p_ao_channel_affect;
env->ssao_color = p_color;
env->ssao_filter = p_blur;
env->ssao_quality = p_quality;
env->ssao_bilateral_sharpness = p_bilateral_sharpness;
}
void RasterizerSceneGLES3::environment_set_tonemap(RID p_env, VS::EnvironmentToneMapper p_tone_mapper, float p_exposure, float p_white, bool p_auto_exposure, float p_min_luminance, float p_max_luminance, float p_auto_exp_speed, float p_auto_exp_scale) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->tone_mapper = p_tone_mapper;
env->tone_mapper_exposure = p_exposure;
env->tone_mapper_exposure_white = p_white;
env->auto_exposure = p_auto_exposure;
env->auto_exposure_speed = p_auto_exp_speed;
env->auto_exposure_min = p_min_luminance;
env->auto_exposure_max = p_max_luminance;
env->auto_exposure_grey = p_auto_exp_scale;
}
void RasterizerSceneGLES3::environment_set_adjustment(RID p_env, bool p_enable, float p_brightness, float p_contrast, float p_saturation, RID p_ramp) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->adjustments_enabled = p_enable;
env->adjustments_brightness = p_brightness;
env->adjustments_contrast = p_contrast;
env->adjustments_saturation = p_saturation;
env->color_correction = p_ramp;
}
void RasterizerSceneGLES3::environment_set_fog(RID p_env, bool p_enable, const Color &p_color, const Color &p_sun_color, float p_sun_amount) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->fog_enabled = p_enable;
env->fog_color = p_color;
env->fog_sun_color = p_sun_color;
env->fog_sun_amount = p_sun_amount;
}
void RasterizerSceneGLES3::environment_set_fog_depth(RID p_env, bool p_enable, float p_depth_begin, float p_depth_end, float p_depth_curve, bool p_transmit, float p_transmit_curve) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->fog_depth_enabled = p_enable;
env->fog_depth_begin = p_depth_begin;
env->fog_depth_end = p_depth_end;
env->fog_depth_curve = p_depth_curve;
env->fog_transmit_enabled = p_transmit;
env->fog_transmit_curve = p_transmit_curve;
}
void RasterizerSceneGLES3::environment_set_fog_height(RID p_env, bool p_enable, float p_min_height, float p_max_height, float p_height_curve) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->fog_height_enabled = p_enable;
env->fog_height_min = p_min_height;
env->fog_height_max = p_max_height;
env->fog_height_curve = p_height_curve;
}
bool RasterizerSceneGLES3::is_environment(RID p_env) {
return environment_owner.owns(p_env);
}
VS::EnvironmentBG RasterizerSceneGLES3::environment_get_background(RID p_env) {
const Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND_V(!env, VS::ENV_BG_MAX);
return env->bg_mode;
}
int RasterizerSceneGLES3::environment_get_canvas_max_layer(RID p_env) {
const Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND_V(!env, -1);
return env->canvas_max_layer;
}
RID RasterizerSceneGLES3::light_instance_create(RID p_light) {