mirror of
https://github.com/ApfelTeeSaft/vb01.git
synced 2026-08-26 19:33:45 +00:00
rendering classes refactoring
This commit is contained in:
devZoGok
+123
-110
@@ -16,6 +16,7 @@ using namespace std;
|
||||
namespace vb01{
|
||||
ParticleEmitter::ParticleEmitter(int numParticles){
|
||||
this->numParticles = numParticles;
|
||||
|
||||
Vertex v1, v2, v3, v4, v5, v6;
|
||||
ParticleEmitter::Vertex vertices[] = {v1, v2, v3, v4, v5, v6};
|
||||
u32 indices[] = {0, 1, 2, 3, 4, 5};
|
||||
@@ -25,73 +26,74 @@ namespace vb01{
|
||||
}
|
||||
|
||||
void ParticleEmitter::setupParticles(Vertex vertices[]){
|
||||
particles=new Particle*[numParticles];
|
||||
particles = new Particle*[numParticles];
|
||||
|
||||
Vector2 size=Vector2(.5,.5);
|
||||
vertices[0].pos=Vector3(size.x/2,size.y/2,0);
|
||||
vertices[0].texCoords=Vector2(1,1);
|
||||
Vector2 size = Vector2(.5,.5);
|
||||
vertices[0].pos = Vector3(size.x / 2, size.y / 2, 0);
|
||||
vertices[0].texCoords = Vector2(1, 1);
|
||||
|
||||
vertices[1].pos=Vector3(-size.x/2,size.y/2,0);
|
||||
vertices[1].texCoords=Vector2(0,1);
|
||||
vertices[1].pos = Vector3(-size.x / 2, size.y / 2, 0);
|
||||
vertices[1].texCoords = Vector2(0, 1);
|
||||
|
||||
vertices[2].pos=Vector3(-size.x/2,-size.y/2,0);
|
||||
vertices[2].pos = Vector3(-size.x / 2,-size.y / 2, 0);
|
||||
vertices[2].texCoords=Vector2(0,0);
|
||||
|
||||
vertices[3].pos=Vector3(-size.x/2,-size.y/2,0);
|
||||
vertices[3].texCoords=Vector2(0,0);
|
||||
vertices[3].pos = Vector3(-size.x / 2, -size.y / 2, 0);
|
||||
vertices[3].texCoords = Vector2(0, 0);
|
||||
|
||||
vertices[4].pos=Vector3(size.x/2,-size.y/2,0);
|
||||
vertices[4].texCoords=Vector2(1,0);
|
||||
vertices[4].pos = Vector3(size.x / 2, -size.y / 2, 0);
|
||||
vertices[4].texCoords = Vector2(1, 0);
|
||||
|
||||
vertices[5].pos=Vector3(size.x/2,size.y/2,0);
|
||||
vertices[5].texCoords=Vector2(1,1);
|
||||
vertices[5].pos = Vector3(size.x / 2, size.y / 2, 0);
|
||||
vertices[5].texCoords = Vector2(1, 1);
|
||||
|
||||
matrices=new mat4[numParticles];
|
||||
matrices = new mat4[numParticles];
|
||||
|
||||
for(int i=0;i<numParticles;i++){
|
||||
Particle *p=new Particle;
|
||||
p->dir=direction;
|
||||
particles[i]=p;
|
||||
matrices[i]=mat4(1.f);
|
||||
for(int i = 0; i < numParticles; i++){
|
||||
Particle *p = new Particle;
|
||||
p->dir = direction;
|
||||
particles[i] = p;
|
||||
matrices[i] = mat4(1.f);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
void ParticleEmitter::setupDisplay(Vertex vertices[], u32 indices[]){
|
||||
u32 MBO;
|
||||
glGenVertexArrays(1,&VAO);
|
||||
glGenBuffers(1,&VBO);
|
||||
glGenBuffers(1,&EBO);
|
||||
glGenVertexArrays(1, &VAO);
|
||||
glGenBuffers(1, &VBO);
|
||||
glGenBuffers(1, &EBO);
|
||||
glBindVertexArray(VAO);
|
||||
glBindBuffer(GL_ARRAY_BUFFER,VBO);
|
||||
glBufferData(GL_ARRAY_BUFFER,6*sizeof(Vertex),vertices,GL_STATIC_DRAW);
|
||||
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER,EBO);
|
||||
glBufferData(GL_ELEMENT_ARRAY_BUFFER,6*sizeof(u32),indices,GL_STATIC_DRAW);
|
||||
glVertexAttribPointer(0,3,GL_FLOAT,GL_FALSE,sizeof(Vertex),(void*)0);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, VBO);
|
||||
glBufferData(GL_ARRAY_BUFFER, 6 * sizeof(Vertex), vertices, GL_STATIC_DRAW);
|
||||
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
|
||||
glBufferData(GL_ELEMENT_ARRAY_BUFFER, 6 * sizeof(u32), indices, GL_STATIC_DRAW);
|
||||
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)0);
|
||||
glEnableVertexAttribArray(0);
|
||||
glVertexAttribPointer(1,2,GL_FLOAT,GL_FALSE,sizeof(Vertex),(void*)(offsetof(Vertex,texCoords)));
|
||||
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)(offsetof(Vertex, texCoords)));
|
||||
glEnableVertexAttribArray(1);
|
||||
glGenBuffers(1,&MBO);
|
||||
glBindBuffer(GL_ARRAY_BUFFER,MBO);
|
||||
glBufferData(GL_ARRAY_BUFFER,numParticles*sizeof(mat4),&matrices[0],GL_STATIC_DRAW);
|
||||
glVertexAttribPointer(2,4,GL_FLOAT,GL_FALSE,sizeof(mat4),(void*)0);
|
||||
|
||||
glGenBuffers(1, &MBO);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, MBO);
|
||||
glBufferData(GL_ARRAY_BUFFER, numParticles * sizeof(mat4), &matrices[0], GL_STATIC_DRAW);
|
||||
glVertexAttribPointer(2, 4, GL_FLOAT, GL_FALSE, sizeof(mat4), (void*)0);
|
||||
glEnableVertexAttribArray(2);
|
||||
glVertexAttribPointer(3,4,GL_FLOAT,GL_FALSE,sizeof(mat4),(void*)(1*sizeof(vec4)));
|
||||
glVertexAttribPointer(3, 4, GL_FLOAT, GL_FALSE, sizeof(mat4), (void*)(1 * sizeof(vec4)));
|
||||
glEnableVertexAttribArray(3);
|
||||
glVertexAttribPointer(4,4,GL_FLOAT,GL_FALSE,sizeof(mat4),(void*)(2*sizeof(vec4)));
|
||||
glVertexAttribPointer(4, 4, GL_FLOAT, GL_FALSE, sizeof(mat4), (void*)(2 * sizeof(vec4)));
|
||||
glEnableVertexAttribArray(4);
|
||||
glVertexAttribPointer(5,4,GL_FLOAT,GL_FALSE,sizeof(mat4),(void*)(3*sizeof(vec4)));
|
||||
glVertexAttribPointer(5, 4, GL_FLOAT, GL_FALSE, sizeof(mat4), (void*)(3 * sizeof(vec4)));
|
||||
glEnableVertexAttribArray(5);
|
||||
|
||||
glVertexAttribDivisor(2,1);
|
||||
glVertexAttribDivisor(3,1);
|
||||
glVertexAttribDivisor(4,1);
|
||||
glVertexAttribDivisor(5,1);
|
||||
glVertexAttribDivisor(2, 1);
|
||||
glVertexAttribDivisor(3, 1);
|
||||
glVertexAttribDivisor(4, 1);
|
||||
glVertexAttribDivisor(5, 1);
|
||||
}
|
||||
|
||||
ParticleEmitter::~ParticleEmitter(){
|
||||
glDeleteVertexArrays(1,&VAO);
|
||||
glDeleteBuffers(1,&VBO);
|
||||
glDeleteVertexArrays(1, &VAO);
|
||||
glDeleteBuffers(1, &VBO);
|
||||
|
||||
delete material;
|
||||
|
||||
@@ -99,96 +101,107 @@ namespace vb01{
|
||||
}
|
||||
|
||||
void ParticleEmitter::makeHeap(int offset){
|
||||
bool heap=false;
|
||||
bool heap = false;
|
||||
while(!heap){
|
||||
bool end=true;
|
||||
for(int i=0;2*i+1+offset<numParticles;i++){
|
||||
if(2*i+2+offset<numParticles&&(particles[i+offset]->d<particles[2*i+1+offset]->d||particles[i+offset]->d<particles[2*i+2+offset]->d)){
|
||||
bool leftChild=particles[2*i+1+offset]->d>particles[2*i+2+offset]->d;
|
||||
swap(particles[i+offset],leftChild?particles[2*i+1+offset]:particles[2*i+2+offset]);
|
||||
bool end = true;
|
||||
for(int i = 0; 2 * i + 1 + offset < numParticles; i++){
|
||||
if(2 * i + 2 + offset < numParticles && (particles[i + offset]->d < particles[2 * i + 1 + offset]->d || particles[i + offset]->d < particles[2 * i + 2 + offset]->d)){
|
||||
bool leftChild = particles[2 * i + 1 + offset]->d > particles[2 * i + 2 + offset]->d;
|
||||
swap(particles[i + offset], leftChild ? particles[2 * i + 1 + offset] : particles[2 * i + 2 + offset]);
|
||||
}
|
||||
else if(2*i+2+offset==numParticles&&particles[i+offset]->d<particles[2*i+1+offset]->d)
|
||||
swap(particles[i+offset],particles[2*i+1+offset]);
|
||||
else if(2 * i + 2 + offset == numParticles && particles[i + offset]->d < particles[2 * i + 1 + offset]->d)
|
||||
swap(particles[i + offset], particles[2 * i + 1 + offset]);
|
||||
}
|
||||
for(int i=0;2*i+1<numParticles;i++){
|
||||
if(2*i+2+offset<numParticles&&(particles[i+offset]->d<particles[2*i+1+offset]->d||particles[i+offset]->d<particles[2*i+2+offset]->d))
|
||||
end=false;
|
||||
else if(2*i+2+offset==numParticles&&particles[i+offset]->d<particles[2*i+1+offset]->d)
|
||||
end=false;
|
||||
for(int i = 0; 2 * i + 1 < numParticles; i++){
|
||||
if(2 * i + 2 + offset < numParticles && (particles[i + offset]->d < particles[2 * i + 1 + offset]->d || particles[i + offset]->d < particles[2 * i + 2 + offset]->d))
|
||||
end = false;
|
||||
else if(2 * i + 2 + offset == numParticles && particles[i + offset]->d < particles[2 * i + 1 + offset]->d)
|
||||
end = false;
|
||||
}
|
||||
if(end)
|
||||
heap=true;
|
||||
heap = true;
|
||||
}
|
||||
}
|
||||
|
||||
void ParticleEmitter::heapSort(){
|
||||
for(int i=0;i<numParticles;i++)
|
||||
for(int i = 0; i < numParticles; i++)
|
||||
makeHeap(i);
|
||||
}
|
||||
|
||||
void ParticleEmitter::update(){
|
||||
Root *root=Root::getSingleton();
|
||||
Camera *cam=root->getCamera();
|
||||
float fov=cam->getFov(),width=root->getWidth(),height=root->getHeight();
|
||||
float nearPlane=cam->getNearPlane(),farPlane=cam->getFarPlane();
|
||||
Vector3 pos=node->getPosition();
|
||||
Vector3 camDir=cam->getDirection(),up=cam->getUp(),left=cam->getLeft(),camPos=cam->getPosition();
|
||||
Root *root = Root::getSingleton();
|
||||
Camera *cam = root->getCamera();
|
||||
float fov = cam->getFov(), width = root->getWidth(), height = root->getHeight();
|
||||
float nearPlane = cam->getNearPlane(), farPlane = cam->getFarPlane();
|
||||
Vector3 pos = node->getPosition();
|
||||
Vector3 camDir = cam->getDirection(), up = cam->getUp(), left = cam->getLeft(), camPos = cam->getPosition();
|
||||
|
||||
mat4 view=lookAt(vec3(camPos.x,camPos.y,camPos.z),vec3(camPos.x+camDir.x,camPos.y+camDir.y,camPos.z+camDir.z),vec3(up.x,up.y,up.z));
|
||||
mat4 proj=perspective(radians(fov),width/height,nearPlane,farPlane);
|
||||
mat4 view = lookAt(vec3(camPos.x, camPos.y, camPos.z), vec3(camPos.x + camDir.x, camPos.y + camDir.y, camPos.z + camDir.z), vec3(up.x, up.y, up.z));
|
||||
mat4 proj = perspective(radians(fov), width / height, nearPlane, farPlane);
|
||||
|
||||
updateParticles(camDir, camPos);
|
||||
|
||||
material->update();
|
||||
Shader *shader=material->getShader();
|
||||
shader->setMat4(view,"view");
|
||||
shader->setMat4(proj,"proj");
|
||||
shader->setVec4(startColor,"startColor");
|
||||
shader->setVec4(endColor,"endColor");
|
||||
shader->setVec2(startSize,"startSize");
|
||||
shader->setVec2(endSize,"endSize");
|
||||
|
||||
Vector3 nodePos=node->localToGlobalPosition(Vector3::VEC_ZERO);
|
||||
Vector3 nodeDir=node->getGlobalAxis(2);
|
||||
Vector3 nodeUp=node->getGlobalAxis(1);
|
||||
Vector3 nodeLeft=node->getGlobalAxis(0);
|
||||
for(int i=0;i<numParticles;i++){
|
||||
Vector3 dir=particles[i]->dir;
|
||||
if(getTime()-particles[i]->time>=particles[i]->timeToLive){
|
||||
particles[i]->time=getTime();
|
||||
float factor=(float)(rand()%100)/100;
|
||||
float s1=float(rand()%(int)spread)/180*PI,s2=float(rand()%360)/180*PI;
|
||||
Vector3 ra1=(Vector3(0,1,0).cross(dir)).norm(),ra2=dir.norm();
|
||||
if(ra1==Vector3::VEC_ZERO) ra1=Vector3(1,0,0);
|
||||
dir=Quaternion(s1,ra1)*dir;
|
||||
dir=Quaternion(s2,ra2)*dir;
|
||||
particles[i]->timeToLive=s64(1000*((highLife-lowLife)*factor+lowLife));
|
||||
//particles[i].mat=translate(mat4(1.f),vec3(nodePos.x,nodePos.y,nodePos.z));
|
||||
particles[i]->trans=nodePos;
|
||||
}
|
||||
//dir=nodeLeft*dir.x+nodeUp*dir.y+nodeDir*dir.z;
|
||||
particles[i]->dir=dir.norm()*direction.getLengthSq()+gravity;
|
||||
float lifePercentage=(float)(getTime()-particles[i]->time)/particles[i]->timeToLive;
|
||||
particles[i]->color=startColor+(endColor-startColor)*lifePercentage;
|
||||
particles[i]->size=startSize+(endSize-startSize)*lifePercentage;
|
||||
//particles[i].mat=translate(particles[i].mat,vec3(dir.x,dir.y,dir.z));
|
||||
particles[i]->trans=particles[i]->trans+dir;
|
||||
|
||||
shader->setVec3(particles[i]->trans,"trans["+to_string(i)+"]");
|
||||
shader->setFloat(lifePercentage,"lifePercentage["+to_string(i)+"]");
|
||||
//shader->setVec2(particles[i]->size,"size["+to_string(i)+"]");
|
||||
|
||||
Vector3 v0=particles[i]->trans;
|
||||
particles[i]->d=cos(camDir.getAngleBetween((v0-camPos).norm()))*camPos.getDistanceFrom(v0);
|
||||
}
|
||||
shader->setMat4(view, "view");
|
||||
shader->setMat4(proj, "proj");
|
||||
shader->setVec4(startColor, "startColor");
|
||||
shader->setVec4(endColor, "endColor");
|
||||
shader->setVec2(startSize, "startSize");
|
||||
shader->setVec2(endSize, "endSize");
|
||||
for(int i = 0; i < numParticles; i++)
|
||||
shader->setVec3(particles[i]->trans, "trans[" + to_string(i) + "]");
|
||||
|
||||
heapSort();
|
||||
glBindVertexArray(VAO);
|
||||
glPolygonMode(GL_FRONT_AND_BACK,GL_FILL);
|
||||
glDrawElementsInstanced(GL_TRIANGLES,6,GL_UNSIGNED_INT,0,numParticles);
|
||||
render();
|
||||
}
|
||||
|
||||
void ParticleEmitter::updateParticles(Vector3 camDir, Vector3 camPos){
|
||||
Shader *shader=material->getShader();
|
||||
Vector3 nodePos = node->localToGlobalPosition(Vector3::VEC_ZERO);
|
||||
Vector3 nodeDir = node->getGlobalAxis(2);
|
||||
Vector3 nodeUp = node->getGlobalAxis(1);
|
||||
Vector3 nodeLeft = node->getGlobalAxis(0);
|
||||
|
||||
for(int i = 0; i < numParticles; i++){
|
||||
Vector3 dir = particles[i]->dir;
|
||||
if(getTime() - particles[i]->time >= particles[i]->timeToLive){
|
||||
particles[i]->time = getTime();
|
||||
float factor = (float)(rand() % 100) / 100;
|
||||
float s1 = float(rand() % (int)spread) / 180 * PI, s2 = float(rand() % 360) / 180 * PI;
|
||||
Vector3 ra1 = (Vector3(0, 1, 0).cross(dir)).norm(), ra2 = dir.norm();
|
||||
if(ra1 == Vector3::VEC_ZERO)
|
||||
ra1 = Vector3::VEC_I;
|
||||
dir = Quaternion(s1, ra1) * dir;
|
||||
dir = Quaternion(s2, ra2) * dir;
|
||||
|
||||
particles[i]->timeToLive = s64(1000 * ((highLife - lowLife) * factor + lowLife));
|
||||
|
||||
particles[i]->trans = nodePos;
|
||||
}
|
||||
|
||||
particles[i]->dir = dir.norm() * direction.getLengthSq() + gravity;
|
||||
float lifePercentage = (float)(getTime() - particles[i]->time) / particles[i]->timeToLive;
|
||||
particles[i]->color = startColor + (endColor - startColor) * lifePercentage;
|
||||
particles[i]->size = startSize + (endSize - startSize) * lifePercentage;
|
||||
particles[i]->trans = particles[i]->trans + dir;
|
||||
|
||||
Vector3 trans = particles[i]->trans;
|
||||
particles[i]->d = cos(camDir.getAngleBetween((trans - camPos).norm())) * camPos.getDistanceFrom(trans);
|
||||
|
||||
shader->setFloat(lifePercentage, "lifePercentage[" + to_string(i) + "]");
|
||||
}
|
||||
}
|
||||
|
||||
void ParticleEmitter::setDirection(Vector3 dir){
|
||||
this->direction=dir;
|
||||
for(int i=0;i<numParticles;i++)
|
||||
particles[i]->dir=dir;
|
||||
this->direction = dir;
|
||||
for(int i = 0; i < numParticles; i++)
|
||||
particles[i]->dir = dir;
|
||||
}
|
||||
|
||||
void ParticleEmitter::render(){
|
||||
glBindVertexArray(VAO);
|
||||
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
|
||||
glDrawElementsInstanced(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0, numParticles);
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user