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#include "../../../include/odfaeg/Graphics/oitRenderComponent.h"
#include "glCheck.h"
#include <memory.h>
using namespace sf;
using namespace std;
namespace odfaeg {
namespace graphic {
OITRenderComponent::OITRenderComponent (RenderWindow& window, int layer, std::string expression, bool twoLayers, sf::ContextSettings settings) :
HeavyComponent(window, math::Vec3f(window.getView().getPosition().x, window.getView().getPosition().y, layer),
math::Vec3f(window.getView().getSize().x, window.getView().getSize().y, 0),
math::Vec3f(window.getView().getSize().x + window.getView().getSize().x * 0.5f, window.getView().getPosition().y + window.getView().getSize().y * 0.5f, layer)),
view(window.getView()),
expression(expression),
twoLayers(twoLayers) {
update = false;
sf::Vector3i resolution ((int) window.getSize().x, (int) window.getSize().y, window.getView().getSize().z);
settings.depthBits = 0;
frameBuffer.create(resolution.x, resolution.y,settings);
previousFrame.create(resolution.x, resolution.y, settings);
settings.depthBits = 24;
frontBuffer.create(resolution.x, resolution.y,settings);
depthBuffer.create(resolution.x, resolution.y,settings);
//frameBuffer.setAlphaTestEnabled(false);
frontBuffer.setView(window.getView());
depthBuffer.setView(window.getView());
frameBuffer.setView(window.getView());
previousFrame.setView(window.getView());
//averageBlendEqPart2.setAlphaTestEnabled(false);
frontBufferSprite = Sprite (frontBuffer.getTexture(), math::Vec3f(0, 0, 0), math::Vec3f(window.getView().getSize().x, window.getView().getSize().y, 0), IntRect(0, 0, window.getView().getSize().x, window.getView().getSize().y));
depthBufferSprite = Sprite (depthBuffer.getTexture(), math::Vec3f(0, 0, 0), math::Vec3f(window.getView().getSize().x, window.getView().getSize().y, 0), IntRect(0, 0, window.getView().getSize().x, window.getView().getSize().y));
frameBufferSprite = Sprite(frameBuffer.getTexture(), math::Vec3f(0, 0, 0), math::Vec3f(window.getView().getSize().x, window.getView().getSize().y, 0), IntRect(0, 0, window.getView().getSize().x, window.getView().getSize().y));
previousFrameBufferSprite = Sprite(previousFrame.getTexture(), math::Vec3f(0, 0, 0), math::Vec3f(view.getSize().x, view.getSize().y, 0), sf::IntRect(0, 0, view.getSize().x, view.getSize().y));
core::FastDelegate<bool> signal (&OITRenderComponent::needToUpdate, this);
core::FastDelegate<void> slot (&OITRenderComponent::drawNextFrame, this);
core::Command cmd(signal, slot);
getListener().connect("UPDATE", cmd);
viewUpdated = true;
firstDraw = true;
previousView = view;
//if (Shader::isAvailable()) {
const std::string vertexShader =
R"(#version 130
out mat4 projMat;
void main () {
gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
gl_FrontColor = gl_Color;
projMat = gl_ProjectionMatrix;
})";
const std::string simpleVertexShader =
R"(#version 130
void main () {
gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
gl_FrontColor = gl_Color;
})";
const std::string transfFragVertexShader =
R"(#version 130
out mat4 newViewMatrix;
out mat4 projMat;
void main() {
gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
gl_FrontColor = gl_Color;
newViewMatrix = gl_ModelViewMatrix;
projMat = gl_ProjectionMatrix;
})";
const std::string transfFragFragmentShader =
R"(#version 130
uniform mat4 oldViewMatrix;
in mat4 newViewMatrix;
in mat4 projMat;
uniform vec3 resolution;
uniform sampler2D oldFrameBuffer;
uniform vec4 viewport;
void main() {
vec4 ndcPos;
ndcPos.xy = ((2.0 * gl_FragCoord.xy) - (2.0 * viewport.xy)) / (viewport.zw) - 1;
ndcPos.z = (2.0 * gl_FragCoord.z - gl_DepthRange.near - gl_DepthRange.far) /
(gl_DepthRange.far - gl_DepthRange.near);
ndcPos.w = 1.0;
vec4 clipPos = ndcPos / gl_FragCoord.w;
vec4 eyePos = inverse(projMat) * clipPos;
vec4 worldPos = inverse(newViewMatrix) * eyePos;
eyePos = oldViewMatrix * worldPos;
clipPos = eyePos * projMat;
clipPos.xyz /= clipPos.w;
vec4 oldFragPos;
oldFragPos.x = (clipPos.x + 1) * viewport.z * 0.5 + viewport.x;
oldFragPos.y = (clipPos.y + 1) * viewport.w * 0.5 + viewport.y;
oldFragPos.z = (clipPos.z + 1) * 0.5;
oldFragPos.w = 1 / clipPos.w;
vec2 position = (gl_FragCoord.xy / resolution.xy);
gl_FragColor = texture2D(oldFrameBuffer, position);
})";
const std::string simpleFragShader =
R"(#version 130
uniform float haveTexture;
uniform sampler2D texture;
void main() {
vec4 texel = texture2D(texture, gl_TexCoord[0].xy);
vec4 colors[2];
colors[0] = gl_Color;
colors[1] = texel * gl_Color;
bool b = (haveTexture > 0.9);
gl_FragColor = colors[int(b)];
})";
const std::string depthGenFragShader =
R"(#version 130
in mat4 projMat;
uniform sampler2D texture;
uniform float haveTexture;
void main () {
vec4 texel = texture2D(texture, gl_TexCoord[0].xy);
vec4 colors[2];
colors[1] = texel * gl_Color;
colors[0] = gl_Color;
bool b = (haveTexture > 0.9);
vec4 color = colors[int(b)];
float z = (gl_FragCoord.w != 1.f) ? (inverse(projMat) * vec4(0, 0, 0, gl_FragCoord.w)).w : gl_FragCoord.z;
gl_FragColor = vec4(0, 0, z, color.a);
})";
const std::string frameBufferGenFragShader =
R"(#version 130
in mat4 projMat;
uniform sampler2D texture;
uniform float haveTexture;
uniform vec3 resolution;
uniform sampler2D depthBuffer;
void main () {
vec2 position = ( gl_FragCoord.xy / resolution.xy );
float max_z = texture2D(depthBuffer, position).z;
vec4 texel = texture2D(texture, gl_TexCoord[0].xy);
vec4 colors[2];
colors[1] = texel * gl_Color;
colors[0] = gl_Color;
bool b = (haveTexture > 0.9);
vec4 color = colors[int(b)];
float z = (gl_FragCoord.w != 1.f) ? (inverse(projMat) * vec4(0, 0, 0, gl_FragCoord.w)).w : gl_FragCoord.z;
colors[1] = color;
colors[0] = vec4(0, 0, 0, 0);
float epsilon = 0.0000000000000000000000000000000000000000000000001;
b = ((z - epsilon) < max_z || (z + epsilon) < max_z);
gl_FragColor = colors[int(b)];
})";
const std::string depthPeelingGenFragShader =
R"(#version 130
in mat4 projMat;
uniform sampler2D depthTexture;
void main () {
vec4 depth = texture2D(depthTexture, gl_TexCoord[0].xy);
float z = (gl_FragCoord.w != 1.f) ? (inverse(projMat) * vec4(0, 0, 0, gl_FragCoord.w)).w : gl_FragCoord.z;
vec4 colors[2];
colors[0] = vec4(0, 0, 0, 1);
colors[1] = vec4(0, 0, z, depth.a);
float epsilon = 0.0000000000000000000000000000000000000000000000001;
bool b = ((z + epsilon) < depth.z || (z - epsilon) < depth.z);
gl_FragColor = colors[int(b)];
})";
if (!depthBufferGenerator.loadFromMemory(vertexShader, depthGenFragShader))
throw core::Erreur(50, "Failed to load depth buffer generator shader", 0);
if (!frameBufferGenerator.loadFromMemory(vertexShader, frameBufferGenFragShader))
throw core::Erreur(51, "Failed to load frame buffer generator shader", 0);
if (!simpleShader.loadFromMemory(vertexShader, frameBufferGenFragShader))
throw core::Erreur(52, "Failed to load simple shader", 0);
if (!depthPeelingGenerator.loadFromMemory(vertexShader,depthPeelingGenFragShader))
throw core::Erreur(53, "Failed to load depth peeling shader", 0);
if (!transformFragShader.loadFromMemory(transfFragVertexShader, transfFragFragmentShader)) {
throw core::Erreur(54, "Failed to load transform frag shader");
}
//throw core::Erreur(52, "Failed to load specular texture generator shader", 0);
frameBufferGenerator.setParameter("resolution",resolution.x, resolution.y, resolution.z);
frameBufferGenerator.setParameter("depthBuffer", depthBuffer.getTexture());
frameBufferGenerator.setParameter("texture", Shader::CurrentTexture);
depthBufferGenerator.setParameter("texture", Shader::CurrentTexture);
depthPeelingGenerator.setParameter("depthTexture", Shader::CurrentTexture);
simpleShader.setParameter("texture",Shader::CurrentTexture);
transformFragShader.setParameter("resolution", resolution.x, resolution.y, resolution.z);
transformFragShader.setParameter("oldFrameBuffer", previousFrame.getTexture());
//specularTextureGenerator->setParameter("specularTexture",specularTexture->getTexture());
backgroundColor = sf::Color::Transparent;
/*GLuint pboId;
glCheck(glGenBuffers(2, pboIds));
glCheck(glBindBuffer(GL_PIXEL_PACK_BUFFER, pboIds[0]));
glCheck(glBufferData(GL_PIXEL_PACK_BUFFER, view.getSize().x * view.getSize().y * 4, 0, GL_STREAM_READ));
glCheck(glBindBuffer(GL_PIXEL_PACK_BUFFER, pboIds[1]));
glCheck(glBufferData(GL_PIXEL_PACK_BUFFER, view.getSize().x * view.getSize().y * 4, 0, GL_STREAM_READ));
glCheck(glBindBuffer(GL_PIXEL_PACK_BUFFER, 0));*/
/*} else {
throw core::Erreur(55, "Shader not supported!", 0);
}*/
}
void OITRenderComponent::pushEvent(sf::Event event, RenderWindow& rw) {
if (event.type == sf::Event::Resized && &getWindow() == &rw && isAutoResized()) {
std::cout<<"recompute size"<<std::endl;
recomputeSize();
getListener().pushEvent(event);
getView().reset(physic::BoundingBox(getView().getViewport().getPosition().x, getView().getViewport().getPosition().y, getView().getViewport().getPosition().z, event.size.width, event.size.height, getView().getViewport().getDepth()));
}
}
bool OITRenderComponent::needToUpdate() {
return update;
}
void OITRenderComponent::changeVisibleEntities(Entity* toRemove, Entity* toAdd, EntityManager* em) {
/*bool removed;
em->removeAnimatedVisibleEntity(toRemove, visibleEntities, view, removed);
if (removed) {
em->insertAnimatedVisibleEntity(toAdd, visibleEntities, view);
loadEntitiesOnComponent(visibleEntities);
update = true;
}*/
}
std::string OITRenderComponent::getExpression() {
return expression;
}
void OITRenderComponent::setBackgroundColor(sf::Color color) {
this->backgroundColor = color;
}
void OITRenderComponent::clear() {
frameBuffer.clear(backgroundColor);
}
Sprite& OITRenderComponent::getFrameBufferSprite () {
return frameBufferSprite;
}
Sprite& OITRenderComponent::getDepthBufferSprite() {
return depthBufferSprite;
}
Sprite& OITRenderComponent::getFrontBufferSprite() {
return frontBufferSprite;
}
const Texture& OITRenderComponent::getDepthBufferTexture() {
return depthBuffer.getTexture();
}
const Texture& OITRenderComponent::getFrameBufferTexture() {
return frameBuffer.getTexture();
}
const Texture& OITRenderComponent::getFrontBufferTexture() {
return frontBuffer.getTexture();
}
bool OITRenderComponent::loadEntitiesOnComponent(std::vector<Entity*> vEntities)
{
if (firstDraw) {
batcher.clear();
for (unsigned int i = 0; i < vEntities.size(); i++) {
if ( vEntities[i]->isLeaf()) {
for (unsigned int j = 0; j < vEntities[i]->getFaces().size(); j++) {
batcher.addFace( vEntities[i]->getFaces()[j], view.getViewMatrix(), view.getProjMatrix());
}
}
}
m_instances = batcher.getInstances();
visibleEntities.clear();
insertNewEntities(vEntities);
update = true;
} else if (viewUpdated) {
/*batcher.clear();
physic::BoundingBox viewArea = view.getViewVolume();
viewArea.setSize(viewArea.getSize().x, viewArea.getSize().y + 100, viewArea.getSize().z);
std::vector<Entity*>::iterator it;
for (it = visibleEntities.begin(); it != visibleEntities.end();) {
physic::BoundingBox bounds = (*it)->getGlobalBounds();
if (!bounds.intersects(viewArea)) {
it = visibleEntities.erase(it);
} else {
for (unsigned int j = 0; j < (*it)->getFaces().size(); j++) {
batcher.addFace((*it)->getFaces()[j], view.getViewMatrix(), view.getProjMatrix());
}
visibleEntities.push_back(*it);
it++;
}
}
std::cout<<"v entities : "<<visibleEntities.size()<<std::endl;
physic::BoundingBox oldViewArea = previousView.getViewVolume();
oldViewArea.setSize(oldViewArea.getSize().x, oldViewArea.getSize().y - 100, oldViewArea.getSize().z);
m_instances = batcher.getInstances();
std::vector<Entity*> newEntities;
for (it = vEntities.begin(); it != vEntities.end(); it++) {
physic::BoundingBox bounds = (*it)->getGlobalBounds();
if (bounds.intersects(viewArea) && !bounds.intersects(oldViewArea)) {
newEntities.push_back(*it);
}
}
insertNewEntities(newEntities);*/
}
return true;
}
void OITRenderComponent::setView(View view) {
std::cout<<"change view"<<std::endl;
previousView = this->view;
this->view = view;
frameBuffer.setView(view);
depthBuffer.setView(view);
frontBuffer.setView(view);
previousFrame.setView(view);
viewUpdated = true;
}
void OITRenderComponent::setExpression(std::string expression) {
update = true;
this->expression = expression;
}
void OITRenderComponent::drawNextFrame() {
update = false;
if (!firstDraw && viewUpdated) {
transformFragShader.setParameter("oldViewMatrix", previousView.getViewMatrix().getMatrix().transpose());
transformFragShader.setParameter("viewport", previousView.getViewport().getPosition().x, previousView.getViewport().getPosition().y, previousView.getViewport().getSize().x, previousView.getViewport().getSize().y);
currentStates.blendMode = BlendNone;
//currentStates.shader = &transformFragShader;
for (unsigned int i = 0; i < m_instances.size(); i++) {
frameBuffer.draw(m_instances[i].getAllVertices(), currentStates);
}
frameBuffer.display();
}
if (viewUpdated || firstDraw) {
depthBuffer.clear(sf::Color::Transparent);
frontBuffer.clear(sf::Color::Transparent);
currentStates.blendMode = BlendNone;
for (unsigned int i = 0; i < m_newInstances.size(); i++) {
if (m_newInstances[i].getMaterial().getTexture() == nullptr) {
depthBufferGenerator.setParameter("haveTexture", 0);
simpleShader.setParameter("haveTexture", 0);
} else {
depthBufferGenerator.setParameter("haveTexture", 1);
simpleShader.setParameter("haveTexture", 1);
}
currentStates.shader=&depthBufferGenerator;
currentStates.texture=m_newInstances[i].getMaterial().getTexture();
depthBuffer.draw(m_newInstances[i].getAllVertices(),currentStates);
currentStates.shader = nullptr;/*&simpleShader;*/
frontBuffer.draw(m_newInstances[i].getAllVertices(), currentStates);
}
frontBuffer.display();
frontBufferSprite.setCenter(view.getPosition());
//simpleShader.setParameter("haveTexture", 1);
currentStates.blendMode = sf::BlendMode(sf::BlendMode::Factor::OneMinusDstAlpha, sf::BlendMode::Factor::DstAlpha, sf::BlendMode::Add, sf::BlendMode::Factor::OneMinusDstAlpha, sf::BlendMode::Factor::One, sf::BlendMode::Equation::Add);
frameBuffer.draw(frontBufferSprite, currentStates);
if (twoLayers) {
currentStates.shader=&frameBufferGenerator;
currentStates.blendMode=sf::BlendMode(sf::BlendMode::Factor::OneMinusDstAlpha, sf::BlendMode::Factor::DstAlpha, sf::BlendMode::Equation::Add, sf::BlendMode::Factor::OneMinusDstAlpha, sf::BlendMode::Factor::One, sf::BlendMode::Equation::Add);
for (unsigned int i = 0; i < m_newInstances.size(); i++) {
if (m_newInstances[i].getMaterial().getTexture() == nullptr)
frameBufferGenerator.setParameter("haveTexture", 0);
else
frameBufferGenerator.setParameter("haveTexture", 1);
currentStates.texture = m_newInstances[i].getMaterial().getTexture();
frameBuffer.draw(m_newInstances[i].getAllVertices(), currentStates);
}
} else {
/*depthBuffer.bind();
glCheck(glBindBuffer(GL_PIXEL_PACK_BUFFER, pboIds[0]));
glCheck(glReadBuffer(GL_COLOR_ATTACHMENT0_EXT));
glCheck(glReadPixels(0, view.getSize().y - (view.getPosition().y + view.getSize().y), view.getSize().x, view.getSize().y, GL_RGBA, GL_UNSIGNED_BYTE, 0));
glCheck(glBindBuffer(GL_PIXEL_PACK_BUFFER, pboIds[1]));
GLubyte* src = (GLubyte*) glMapBuffer(GL_PIXEL_PACK_BUFFER, GL_READ_ONLY);
unsigned int nbLayers = 0;
unsigned int layerValue = 0;
if(src) {
for (unsigned int i = 0; i < view.getSize().x * view.getSize().y; i++) {
if ((unsigned int) (src[i*4+2]) > layerValue) {
nbLayers++;
layerValue = (unsigned int) (src[i*4+2]);
}
}
}
glCheck(glUnmapBuffer(GL_PIXEL_PACK_BUFFER));
glCheck(glBindBuffer(GL_PIXEL_PACK_BUFFER, 0));*/
/*unsigned int nbLayers = 0;
unsigned int size = view.getSize().x * view.getSize().y * 4;
const sf::Uint8 * data = new unsigned char[size];
depthBuffer.display();
sf::Image img = depthBuffer.getTexture().copyToImage();
data = img.getPixelsPtr();
for (unsigned int i = 0; i < size / 4; i++) {
if ((float)(data[i*4+2]) > nbLayers) {
nbLayers++;
}
//std:cout<<"depthBufferdata "<<" i : "<<((float)(data[i*4]))<<","<<((float)(data[i*4+1]))<<","<<((float)(data[i*4+2]))<<","<<((float)(data[i*3]))<<std::endl;
}*/
unsigned int nbLayers = newBatcher.getNbLayers()-1;
std::cout<<"nb layers : "<<nbLayers<<std::endl;
for (unsigned int i = 0; i < nbLayers; i++) {
currentStates.shader = &frameBufferGenerator;
currentStates.blendMode = sf::BlendNone;
frontBuffer.clear(sf::Color::Transparent);
for (unsigned int i = 0; i < m_newInstances.size(); i++) {
if (m_newInstances[i].getMaterial().getTexture() == nullptr) {
frameBufferGenerator.setParameter("haveTexture", 0);
} else {
frameBufferGenerator.setParameter("haveTexture", 1);
}
currentStates.texture=m_newInstances[i].getMaterial().getTexture();
frontBuffer.draw(m_newInstances[i].getAllVertices(), currentStates);
}
frontBuffer.display();
frontBufferSprite.setCenter(view.getPosition());
currentStates.shader = &depthPeelingGenerator;
currentStates.texture = &depthBuffer.getTexture();
depthBuffer.setActive();
glCheck(glClear(GL_DEPTH_BUFFER_BIT));
for (unsigned int i = 0; i < m_newInstances.size(); i++) {
depthBuffer.draw(m_newInstances[i].getAllVertices(), currentStates);
}
depthBuffer.display();
//Problem, depthTexture is emplty!!!
currentStates.shader = nullptr;/*&simpleShader;
simpleShader.setParameter("haveTexture", 1);*/
currentStates.blendMode = sf::BlendMode(sf::BlendMode::Factor::OneMinusDstAlpha, sf::BlendMode::Factor::DstAlpha, sf::BlendMode::Add, sf::BlendMode::Factor::OneMinusDstAlpha, sf::BlendMode::Factor::One, sf::BlendMode::Equation::Add);
frameBuffer.draw(frontBufferSprite, currentStates);
}
}
/*for (unsigned int j = 0; j < m_newInstances.size(); j++) {
m_instances.push_back(m_newInstances[j]);
}
m_newInstances.clear();
newBatcher.clear();*/
for (unsigned int i = 0; i < drawables.size(); i++) {
frameBuffer.draw(drawables[i].first.get(), drawables[i].second);
}
frameBuffer.display();
previousFrame.clear(backgroundColor);
currentStates.blendMode = sf::BlendNone;
currentStates.shader = nullptr;
frameBufferSprite.setCenter(view.getPosition());
previousFrame.draw(frameBufferSprite, currentStates);
previousFrame.display();
previousFrameBufferSprite.setCenter(view.getPosition());
//std::cout<<"view updated!"<<std::endl;
firstDraw = false;
viewUpdated = false;
} else {
//std::cout<<"draw previous frame!"<<std::endl;
currentStates.blendMode = sf::BlendNone;
currentStates.shader = nullptr;
frameBuffer.draw(previousFrameBufferSprite, currentStates);
frameBuffer.display();
const Texture& text = frameBuffer.getTexture();
Image img = text.copyToImage();
bool found = false;
for (unsigned int x = 0; x < img.getSize().x && !found; x++) {
for (unsigned int y = 0; y < img.getSize().y && !found; y++) {
if ((int) img.getPixel(x, y).r > 0) {
std::cout<<(int) img.getPixel(x, y).r<<std::endl;
found = true;
}
}
}
}
}
std::vector<Entity*> OITRenderComponent::getEntities() {
return visibleEntities;
}
void OITRenderComponent::draw(Drawable& drawable, RenderStates states) {
update = true;
drawables.push_back(std::make_pair(std::ref(drawable), states));
}
void OITRenderComponent::draw(RenderTarget& target, RenderStates states) {
frameBufferSprite.setCenter(target.getView().getPosition());
target.draw(frameBufferSprite, states);
drawables.clear();
}
View& OITRenderComponent::getView() {
return view;
}
int OITRenderComponent::getLayer() {
return getPosition().z;
}
void OITRenderComponent::removeEntities(physic::BoundingBox box) {
std::vector<Entity*>::iterator it;
for (it = visibleEntities.begin(); it != visibleEntities.end();) {
physic::BoundingBox bounds = (*it)->getGlobalBounds();
if (bounds.intersects(box)) {
it = visibleEntities.erase(it);
} else {
it++;
}
}
}
void OITRenderComponent::insertNewEntities(std::vector<Entity*> vEntities) {
newBatcher.clear();
for (unsigned int i = 0; i < vEntities.size(); i++) {
if ( vEntities[i]->isLeaf()) {
for (unsigned int j = 0; j < vEntities[i]->getFaces().size(); j++) {
newBatcher.addFace( vEntities[i]->getFaces()[j], view.getViewMatrix(), view.getProjMatrix());
}
}
visibleEntities.push_back(vEntities[i]);
}
m_newInstances = newBatcher.getInstances();
update = true;
}
void OITRenderComponent::updateParticleSystems() {
for (unsigned int i = 0; i < visibleEntities.size(); i++) {
if (dynamic_cast<physic::ParticleSystem*>(visibleEntities[i]) != nullptr) {
static_cast<physic::ParticleSystem*>(visibleEntities[i])->update();
}
}
loadEntitiesOnComponent(visibleEntities);
update = true;
}
OITRenderComponent::~OITRenderComponent() {
//glDeleteBuffers(2, pboIds);
}
}
} |
Render textures et SFML.
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