// Loader for inline data to Model (almost same as LoadModelPlus)
Model* LoadDataToModel(
GLfloat *vertices,
GLfloat *normals,
GLfloat *texCoords,
GLfloat *colors,
GLuint *indices,
int numVert,
int numInd)
{
Model* m = (Model*)malloc(sizeof(Model));
memset(m, 0, sizeof(Model));
m->vertexArray = vertices;
m->texCoordArray = texCoords;
m->normalArray = normals;
m->indexArray = indices;
m->numVertices = numVert;
m->numIndices = numInd;
glGenVertexArrays(1, &m->vao);
glGenBuffers(1, &m->vb);
glGenBuffers(1, &m->ib);
glGenBuffers(1, &m->nb);
if (m->texCoordArray != NULL)
glGenBuffers(1, &m->tb);
ReloadModelData(m);
return m;
}
void calculateNextPos2(vector<glm::vec3> &particle, FBOstruct *fboPos, FBOstruct *fboOldPos, FBOstruct *fboVel, FBOstruct *fboOldVel, Model* squareModel, GLuint velocityEulerShader, GLuint pass, GLuint PositionEulerShader)
{
ReloadModelData(squareModel);
//update old velosity
glUseProgram(pass);
useFBO(fboOldVel, fboVel, 0L);
glClearColor(0.0, 0.0, 0.0, 0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
DrawModel(squareModel, pass, "in_Position", NULL, "in_TexCoord");
//old position is updated to current position
glUseProgram(pass);
useFBO(fboOldPos, fboPos, 0L);
glClearColor(0.0, 0.0, 0.0, 0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
DrawModel(squareModel, pass, "in_Position", NULL, "in_TexCoord");
//update velosity
glUseProgram(velocityEulerShader);
use2FBO(fboVel, fboOldVel, fboOldPos, velocityEulerShader);
glClearColor(0.0, 0.0, 0.0, 0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
DrawModel(squareModel, velocityEulerShader, "in_Position", NULL, "in_TexCoord");
//current position is updated to new position, need currnt position therfor updated old position first
glUseProgram(PositionEulerShader);
use2FBO(fboPos, fboVel, fboOldPos, PositionEulerShader);
glClearColor(0.0, 0.0, 0.0, 0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
DrawModel(squareModel, PositionEulerShader, "in_Position", NULL, "in_TexCoord");
// position vector is updated
const size_t SIZE = nrOfParticlesVertically*nrOfParticlesHorizontally * 4;
float particlePixels[SIZE];
glReadPixels(0, 0, nrOfParticlesVertically*nrOfParticlesHorizontally, 1, GL_RGBA, GL_FLOAT, particlePixels);
for (int i = 0, j = 0; i < particle.size(); i++, j += 4)
{
//cout << "Position vector: " << particlePixels[j] << " " << particlePixels[j + 1] << " " << particlePixels[j + 2] << endl;
particle.at(i).x = particlePixels[j];
particle.at(i).y = particlePixels[j + 1];
particle.at(i).z = particlePixels[j + 2];
};
}
Model* LoadModelPlus(const char* name/*,
GLuint program,
char* vertexVariableName,
char* normalVariableName,
char* texCoordVariableName*/)
{
Model *m;
m = LoadModel(name);
glGenVertexArrays(1, &m->vao);
glGenBuffers(1, &m->vb);
glGenBuffers(1, &m->ib);
glGenBuffers(1, &m->nb);
if (m->texCoordArray != NULL)
glGenBuffers(1, &m->tb);
ReloadModelData(m);
return m;
}
