ripple/ripple.cpp
2017-12-11 17:20:40 -05:00

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#include <stdlib.h>
#include <iostream>
#include "inf2705.h"
#include "constants.h"
#include "FBO.h"
#include "Packets.h"
#include "util.h"
#define SOL 1
enum {LocAttrib, LocUniform}; /* Shader location type */
enum {
RWMP_SHADER,
APD_SHADER,
DPO_SHADER,
DMM_SHADER,
DT_SHADER,
RAA_SHADER,
NB_SHADERS
}; /* Shaders stages */
// variables pour l'utilisation des nuanceurs
GLuint prog; // votre programme de nuanceurs
GLuint progRasterizeWaveMeshPosition;
GLuint progAddPacketDisplacement;
GLuint progDisplayPacketOutlined;
GLuint progDisplayMicroMesh;
GLuint progDisplayTerrain;
GLuint progRenderAA;
GLint locVertex = -1;
GLint locNormal = -1;
GLint locTexCoord = -1;
GLint locmatrModel = -1;
GLint locmatrVisu = -1;
GLint locmatrProj = -1;
GLint locmatrNormale = -1;
GLint loclaTexture = -1;
// Locations for RasterizeWaveMeshPosition shader
GLint locVertexRWMP = -1;
GLint locTexCoordRWMP = -1;
GLint locmatrModelRWMP = -1;
GLint locmatrVisuRWMP = -1;
GLint locmatrProjRWMP = -1;
GLint locmatrNormaleRWMP = -1;
// Locations for AddPacketDisplacement shader
GLuint locPosAPD = -1;
GLuint locAtt1APD = -1;
GLuint locAtt2APD = -1;
GLuint locmatrModelAPD = -1;
GLuint locmatrVisuAPD = -1;
GLuint locmatrProjAPD = -1;
GLuint locTexAPD = -1;
// Locations for DisplayPacketOutlined shader
GLuint locPosDPO = -1;
GLuint locAtt1DPO = -1;
GLuint locAtt2DPO = -1;
GLuint locmatrModelDPO = -1;
GLuint locmatrVisuDPO = -1;
GLuint locmatrProjDPO = -1;
GLuint locTexDPO = -1;
// Locations for DisplayMicroMesh shader
GLuint locVertexDMM = -1;
GLuint locTexCoordDMM = -1;
GLuint locmatrModelDMM = -1;
GLuint locmatrVisuDMM = -1;
GLuint locmatrProjDMM = -1;
GLuint locTerrainTexDMM = -1;
GLuint locWaterPosTexDMM = -1;
GLuint locWaterHeightTexDMM = -1;
// Locationss for DisplayTerrain shader
GLuint locVertexDT = -1;
GLuint locmatrModelDT = -1;
GLuint locmatrVisuDT = -1;
GLuint locmatrProjDT = -1;
GLuint locTerrainTexDT = -1;
// Locations for RenderAA shader
GLuint locVertexRAA = -1;
GLuint locTexCoordRAA = -1;
GLuint locmatrModelRAA = -1;
GLuint locmatrVisuRAA = -1;
GLuint locmatrProjRAA = -1;
GLuint locTexRAA = -1;
GLuint indLightSource;
GLuint indFrontMaterial;
GLuint indLightModel;
GLuint progBase; // le programme de nuanceurs de base
GLint locVertexBase = -1;
GLint locColorBase = -1;
GLint locmatrModelBase = -1;
GLint locmatrVisuBase = -1;
GLint locmatrProjBase = -1;
GLuint vao[NB_SHADERS];
GLuint vbo[5];
GLuint ubo[4];
GLuint vbosQuad[2]; /* Vertex & Tex Coord */
GLuint vboPacket;
GLuint vboHeightField;
GLuint vboDMM[2]; /* Vertex & Index */
// matrices de du pipeline graphique
MatricePipeline matrModel;
MatricePipeline matrVisu;
MatricePipeline matrProj;
MatricePipeline matrProjWide;
// les formes
FormeSphere *sphere = NULL, *sphereLumi = NULL;
FormeTheiere *theiere = NULL;
FormeTore *tore = NULL;
FormeCylindre *cylindre = NULL;
FormeCylindre *cone = NULL;
// variables pour définir le point de vue
double thetaCam = 180.0; // angle de rotation de la caméra (coord. sphériques)
double phiCam = 0.0; // angle de rotation de la caméra (coord. sphériques)
double distCam = 0.0; // distance (coord. sphériques)
glm::vec3 cameraPos = glm::vec3(10.17, 22.13, 59.49);
float movementIncr = 0.8;
/* Movement direction */
float goF = 0; /* Forward */
float goR = 0; /* Right */
float goB = 0; /* Back */
float goL = 0; /* Left */
float goU = 0; /* Up */
float goD = 0; /* Down */
// variables d'état
bool enPerspective = false; // indique si on est en mode Perspective (true) ou Ortho (false)
bool enmouvement = true; // le modèle est en mouvement/rotation automatique ou non
bool afficheAxes = false; // indique si on affiche les axes
GLenum modePolygone = GL_FILL; // comment afficher les polygones
// FBOs
FBO *posFBO;
FBO *heightFBO;
FBO *aaFBO;
// Terrain mesh size
const int terrainW = 1024;
const int terrainH = 1024;
// Wave Packets
Packets *packets;
int packetBudget = 100000;
/* Wave packets:
* vec4: xy = position, zw = direction
* vec4: x = amplitude, y = wavelength, z = phase offset, w = enveloppe size
* vec4: for rendering x = center of wave bending circle*/
GLfloat packetData[PACKET_GPU_BUFFER_SIZE * 3 * 4];
int nIndexDMM = 0;
bool debug = false;
int printonce = 0;
////////////////////////////////////////
// déclaration des variables globales //
////////////////////////////////////////
/* Heightmap for the terrain */
GLuint texTerrain = 0;
/* Forward declarations */
void displayPacketOutlined(int count);
void addPacketDisplacement(int count);
void displayTerrain();
void displayMicroMesh();
void verifierAngles()
{
if ( thetaCam > 360.0 )
thetaCam -= 360.0;
else if ( thetaCam < 0.0 )
thetaCam += 360.0;
const GLdouble MINPHI = -90.0, MAXPHI = 90.0;
if ( phiCam > MAXPHI )
phiCam = MAXPHI;
else if ( phiCam < MINPHI )
phiCam = MINPHI;
}
void calculerPhysique( )
{
verifierAngles();
}
void updatePackets()
{
// Compute wave packets
if (enmouvement)
packets->AdvectWavePackets(INIT_WAVE_SPEED);
if (!debug)
heightFBO->CommencerCapture();
int displayedPackets = 0;
int packetChunk =0;
/* Standard wave packets */
for (int i = 0; i < packets->m_usedPackets; ++i) {
int pk = packets->m_usedPacket[i];
/* Test for 3rd vertex (sliding point) */
if (!packets->m_packet[pk].use3rd) {
/* Position */
packetData[packetChunk++] = packets->m_packet[pk].midPos.x();
packetData[packetChunk++] = packets->m_packet[pk].midPos.y();
/* Direction */
packetData[packetChunk++] = packets->m_packet[pk].travelDir.x();
packetData[packetChunk++] = packets->m_packet[pk].travelDir.y();
/* Att1 */
packetData[packetChunk++] = packets->m_packet[pk].ampOld;
packetData[packetChunk++] = 2.0f * M_PI / packets->m_packet[pk].k;
packetData[packetChunk++] = packets->m_packet[pk].phase;
packetData[packetChunk++] = packets->m_packet[pk].envelope;
/* Att2 */
packetData[packetChunk++] = packets->m_packet[pk].bending;
packetData[packetChunk++] = 0.0;
packetData[packetChunk++] = 0.0;
packetData[packetChunk++] = 0.0;
displayedPackets++;
if (packetChunk >= PACKET_GPU_BUFFER_SIZE * 3 * 4) {
glBindBuffer(GL_ARRAY_BUFFER, vboPacket);
/* TODO Use Buffer mapping for better performance */
glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(packetData), packetData);
glBindBuffer(GL_ARRAY_BUFFER, 0);
addPacketDisplacement(displayedPackets);
displayedPackets = 0;
packetChunk = 0;
}
}
}
printonce++;
// printf("PacketData[0] = %f , %f\n", packetData[0], packetData[1]);
/* Ghost packets */
for (int i = 0; i < packets->m_usedGhosts; ++i) {
int pk = packets->m_usedGhost[i];
/* Position */
packetData[packetChunk++] = packets->m_ghostPacket[pk].pos.x();
packetData[packetChunk++] = packets->m_ghostPacket[pk].pos.y();
/* Direction */
packetData[packetChunk++] = packets->m_ghostPacket[pk].dir.x();
packetData[packetChunk++] = packets->m_ghostPacket[pk].dir.y();
/* Att1 */
packetData[packetChunk++] = packets->m_ghostPacket[pk].ampOld;
packetData[packetChunk++] = 2.0f * M_PI / packets->m_ghostPacket[pk].k;
packetData[packetChunk++] = packets->m_ghostPacket[pk].phase;
packetData[packetChunk++] = packets->m_ghostPacket[pk].envelope;
/* Att2 */
packetData[packetChunk++] = packets->m_ghostPacket[pk].bending;
packetData[packetChunk++] = 0.0;
packetData[packetChunk++] = 0.0;
packetData[packetChunk++] = 0.0;
displayedPackets++;
if (packetChunk >= PACKET_GPU_BUFFER_SIZE * 3 * 4) {
glBindBuffer(GL_ARRAY_BUFFER, vboPacket);
glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(packetData), packetData);
glBindBuffer(GL_ARRAY_BUFFER, 0);
addPacketDisplacement(displayedPackets);
displayedPackets = 0;
packetChunk = 0;
}
}
glBindBuffer(GL_ARRAY_BUFFER, vboPacket);
glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(packetData), packetData);
glBindBuffer(GL_ARRAY_BUFFER, 0);
addPacketDisplacement(displayedPackets);
if (!debug)
heightFBO->TerminerCapture();
}
void chargerTextures()
{
unsigned char *pixels;
GLsizei largeur, hauteur;
if ( ( pixels = ChargerImage( WATER_TERRAIN_FILE, largeur, hauteur ) ) != NULL )
{
glGenTextures( 1, &texTerrain );
glBindTexture( GL_TEXTURE_2D, texTerrain );
glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, largeur, hauteur, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glBindTexture( GL_TEXTURE_2D, 0 );
delete[] pixels;
}
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP );
}
/* Create program and link it
* Input : filenames for vertex, geometry and fragment shader, or NULL*/
GLuint createShader(const GLchar *shaders[3])
{
GLuint prog;
GLenum shaderType[3] = {
GL_VERTEX_SHADER,
GL_GEOMETRY_SHADER,
GL_FRAGMENT_SHADER
};
prog = glCreateProgram();
for (int i = 0; i < 3; ++i) {
if (shaders[i] != NULL) {
printf("Compiling %s ...\n", shaders[i]);
const GLchar *shaderStr = ProgNuanceur::lireNuanceur(shaders[i]);
if (shaderStr == NULL)
break;
GLuint s = glCreateShader(shaderType[i]);
glShaderSource( s, 1, &shaderStr, NULL );
glCompileShader( s );
glAttachShader( prog, s );
ProgNuanceur::afficherLogCompile( s );
delete [] shaderStr;
}
}
glLinkProgram(prog);
ProgNuanceur::afficherLogLink(prog);
return prog;
}
GLuint
getloc(GLuint prog, const GLchar *name, const int type)
{
GLuint loc;
switch (type) {
case LocAttrib:
loc = glGetAttribLocation(prog, name);
break;
case LocUniform:
loc = glGetUniformLocation(prog, name);
break;
}
if (loc == -1)
fprintf(stderr, "Cannot find location for %s\n", name);
return loc;
}
void chargerNuanceurs()
{
// charger le nuanceur de base
{
// créer le programme
progBase = glCreateProgram();
// attacher le nuanceur de sommets
{
GLuint nuanceurObj = glCreateShader( GL_VERTEX_SHADER );
glShaderSource( nuanceurObj, 1, &ProgNuanceur::chainesSommetsMinimal, NULL );
glCompileShader( nuanceurObj );
glAttachShader( progBase, nuanceurObj );
ProgNuanceur::afficherLogCompile( nuanceurObj );
}
// attacher le nuanceur de fragments
{
GLuint nuanceurObj = glCreateShader( GL_FRAGMENT_SHADER );
glShaderSource( nuanceurObj, 1, &ProgNuanceur::chainesFragmentsMinimal, NULL );
glCompileShader( nuanceurObj );
glAttachShader( progBase, nuanceurObj );
ProgNuanceur::afficherLogCompile( nuanceurObj );
}
// faire l'édition des liens du programme
glLinkProgram( progBase );
ProgNuanceur::afficherLogLink( progBase );
// demander la "Location" des variables
locVertexBase = getloc( progBase, "Vertex", LocAttrib );
locColorBase = getloc( progBase, "Color", LocAttrib );
locmatrModelBase = getloc( progBase, "matrModel", LocUniform );
locmatrVisuBase = getloc( progBase, "matrVisu", LocUniform );
locmatrProjBase = getloc( progBase, "matrProj", LocUniform );
}
// Load RasterizeWaveMeshPosition shader
{
// créer le programme
const GLchar *shaders[3] = {"rasterizeWaveMeshPosition.vert", NULL, "rasterizeWaveMeshPosition.frag"};
progRasterizeWaveMeshPosition = createShader(shaders);
// demander la "Location" des variables
locVertexRWMP = getloc( progRasterizeWaveMeshPosition, "Vertex" , LocAttrib);
locTexCoordRWMP = getloc( progRasterizeWaveMeshPosition, "TexCoord" , LocAttrib);
locmatrModelRWMP = getloc( progRasterizeWaveMeshPosition, "matrModel" , LocUniform);
locmatrVisuRWMP = getloc( progRasterizeWaveMeshPosition, "matrVisu" , LocUniform);
locmatrProjRWMP = getloc( progRasterizeWaveMeshPosition, "matrProj" , LocUniform);
}
// Load AddPacketDisplacement shader
{
// créer le programme
const GLchar *shaders[3] = {"addPacketDisplacement.vert", "addPacketDisplacement.geom", "addPacketDisplacement.frag"};
progAddPacketDisplacement = createShader(shaders);
// demander la "Location" des variables
locPosAPD = getloc( progAddPacketDisplacement, "Pos" , LocAttrib);
locAtt1APD = getloc( progAddPacketDisplacement, "Att1" , LocAttrib);
locAtt2APD = getloc( progAddPacketDisplacement, "Att2" , LocAttrib);
locmatrModelAPD = getloc( progAddPacketDisplacement, "matrModel" , LocUniform);
locmatrVisuAPD = getloc( progAddPacketDisplacement, "matrVisu" , LocUniform);
locmatrProjAPD = getloc( progAddPacketDisplacement, "matrProj" , LocUniform);
}
// Load DisplayPacketOutlined shader
{
const GLchar *shaders[3] = {"displayPacketOutlined.vert", "displayPacketOutlined.geom", "displayPacketOutlined.frag"};
progDisplayPacketOutlined = createShader(shaders);
locPosDPO = getloc( progDisplayPacketOutlined, "Pos" , LocAttrib);
locAtt1DPO = getloc( progDisplayPacketOutlined, "Att1" , LocAttrib);
locAtt2DPO = getloc( progDisplayPacketOutlined, "Att2" , LocAttrib);
locmatrModelDPO = getloc( progDisplayPacketOutlined, "matrModel" , LocUniform);
locmatrVisuDPO = getloc( progDisplayPacketOutlined, "matrVisu" , LocUniform);
locmatrProjDPO = getloc( progDisplayPacketOutlined, "matrProj" , LocUniform);
locTexDPO = getloc( progDisplayPacketOutlined, "tex" , LocUniform);
}
// Load DisplayMicroMesh shader
{
const GLchar *shaders[3] = {"displayMicroMesh.vert", "displayMicroMesh.geom", "displayMicroMesh.frag"};
progDisplayMicroMesh = createShader(shaders);
locVertexDMM = getloc( progDisplayMicroMesh, "Vertex" , LocAttrib);
locTexCoordDMM = getloc( progDisplayMicroMesh, "TexCoord" , LocAttrib);
locmatrModelDMM = getloc( progDisplayMicroMesh, "matrModel" , LocUniform);
locmatrVisuDMM = getloc( progDisplayMicroMesh, "matrVisu" , LocUniform);
locmatrProjDMM = getloc( progDisplayMicroMesh, "matrProj" , LocUniform);
locTerrainTexDMM = getloc( progDisplayMicroMesh, "terrain" , LocUniform);
locWaterPosTexDMM = getloc( progDisplayMicroMesh, "waterPos" , LocUniform);
locWaterHeightTexDMM = getloc( progDisplayMicroMesh, "waterHeight" , LocUniform);
}
// Load DisplayTerrain shader
{
const GLchar *shaders[3] = {"displayTerrain.vert", NULL, "displayTerrain.frag"};
progDisplayTerrain = createShader(shaders);
locVertexDT = getloc( progDisplayTerrain, "Vertex" , LocAttrib);
locmatrModelDT = getloc( progDisplayTerrain, "matrModel" , LocUniform);
locmatrVisuDT = getloc( progDisplayTerrain, "matrVisu" , LocUniform);
locmatrProjDT = getloc( progDisplayTerrain, "matrProj" , LocUniform);
locTerrainTexDT = getloc( progDisplayTerrain, "terrain" , LocUniform);
}
// Load RenderAA shader
{
const GLchar *shaders[3] = {"renderAA.vert", NULL, "RenderAA.frag"};
progRenderAA = createShader(shaders);
locVertexRAA = getloc( progRenderAA, "Vertex" , LocAttrib);
locTexCoordRAA = getloc( progRenderAA, "TexCoord" , LocAttrib);
locmatrModelRAA = getloc( progRenderAA, "matrModel" , LocUniform);
locmatrVisuRAA = getloc( progRenderAA, "matrVisu" , LocUniform);
locmatrProjRAA = getloc( progRenderAA, "matrProj" , LocUniform);
locTexRAA = getloc( progRenderAA, "tex" , LocUniform);
}
}
// Create a screen space quad
void initQuad()
{
GLfloat vertices[3*2*2] = {
-1.0, -1.0, 1.0, -1.0, -1.0, 1.0,
1.0, -1.0, 1.0, 1.0, -1.0, 1.0
};
GLfloat texcoords[3*2*2] = {
0.0, 1.0, 1.0, 1.0, 0.0, 0.0,
1.0, 1.0, 1.0, 0.0, 0.0, 0.0
};
// allouer les objets OpenGL
/* TODO Add support for RenderAA shader */
glGenBuffers( 2, vbosQuad );
/* Prepare VAO for RasterizeWaveMeshPosition shader */
glBindVertexArray(vao[RWMP_SHADER]);
// Bind vertices VBO
glBindBuffer( GL_ARRAY_BUFFER, vbosQuad[0] );
glBufferData( GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW );
glVertexAttribPointer( locVertexRWMP, 2, GL_FLOAT, GL_FALSE, 0, 0 );
glEnableVertexAttribArray(locVertexRWMP);
// Bind texture coord VBO
glBindBuffer( GL_ARRAY_BUFFER, vbosQuad[1] );
glBufferData( GL_ARRAY_BUFFER, sizeof(texcoords), texcoords, GL_STATIC_DRAW );
glVertexAttribPointer( locTexCoordRWMP, 2, GL_FLOAT, GL_FALSE, 0, 0 );
glEnableVertexAttribArray(locTexCoordRWMP);
/* Prepare VAO for RenderAA shader */
glBindVertexArray(vao[RAA_SHADER]);
// Bind vertices VBO
glBindBuffer( GL_ARRAY_BUFFER, vbosQuad[0] );
glVertexAttribPointer( locVertexRAA, 2, GL_FLOAT, GL_FALSE, 0, 0 );
glEnableVertexAttribArray(locVertexRAA);
// Bind texture coord VBO
glBindBuffer( GL_ARRAY_BUFFER, vbosQuad[1] );
glVertexAttribPointer( locTexCoordRAA, 2, GL_FLOAT, GL_FALSE, 0, 0 );
glEnableVertexAttribArray(locTexCoordRAA);
}
// Create the buffer to store wave packets
void initPacketMesh()
{
glGenBuffers(1, &vboPacket);
glBindVertexArray(vao[APD_SHADER]);
glBindBuffer(GL_ARRAY_BUFFER, vboPacket);
glBufferData(GL_ARRAY_BUFFER, sizeof(packetData), NULL, GL_DYNAMIC_DRAW);
glVertexAttribPointer(locPosAPD, 4, GL_FLOAT, GL_FALSE, sizeof(GLfloat) * 12, (void*)0);
glVertexAttribPointer(locAtt1APD, 4, GL_FLOAT, GL_FALSE, sizeof(GLfloat) * 12, (void*)(4*sizeof(GLfloat)));
glVertexAttribPointer(locAtt2APD, 4, GL_FLOAT, GL_FALSE, sizeof(GLfloat) * 12, (void*)(8*sizeof(GLfloat)));
glEnableVertexAttribArray(locPosAPD);
glEnableVertexAttribArray(locAtt1APD);
glEnableVertexAttribArray(locAtt2APD);
glBindVertexArray(vao[DPO_SHADER]);
glBindBuffer(GL_ARRAY_BUFFER, vboPacket);
/* No need to initialize the buffer a second time */
glVertexAttribPointer(locPosDPO, 4, GL_FLOAT, GL_FALSE, sizeof(GLfloat) * 12, (void*)0);
glVertexAttribPointer(locAtt1DPO, 4, GL_FLOAT, GL_FALSE, sizeof(GLfloat) * 12, (void*)(4*sizeof(GLfloat)));
glVertexAttribPointer(locAtt2DPO, 4, GL_FLOAT, GL_FALSE, sizeof(GLfloat) * 12, (void*)(8*sizeof(GLfloat)));
glEnableVertexAttribArray(locPosDPO);
glEnableVertexAttribArray(locAtt1DPO);
glEnableVertexAttribArray(locAtt2DPO);
glBindVertexArray(0);
}
void initHeightFieldMesh()
{
GLfloat *data = new GLfloat[terrainW * terrainH * 6 * 2];
/* TODO Benchmark usefullness of parallel for */
#pragma omp parallel for
for (int y=0; y<terrainH; ++y) {
for (int x=0; x<terrainW; ++x) {
data[(y*terrainW + x) * 12 + 0] = 2.0 * (float)(x) / terrainW - 1.0;
data[(y*terrainW + x) * 12 + 1] = 2.0 * (float)(y) / terrainH - 1.0;
data[(y*terrainW + x) * 12 + 2] = 2.0 * (float)(x) / terrainW - 1.0;
data[(y*terrainW + x) * 12 + 3] = 2.0 * (float)(y+1) / terrainH - 1.0;
data[(y*terrainW + x) * 12 + 4] = 2.0 * (float)(x+1) / terrainW - 1.0;
data[(y*terrainW + x) * 12 + 5] = 2.0 * (float)(y) / terrainH - 1.0;
data[(y*terrainW + x) * 12 + 6] = 2.0 * (float)(x) / terrainW - 1.0;
data[(y*terrainW + x) * 12 + 7] = 2.0 * (float)(y+1) / terrainH - 1.0;
data[(y*terrainW + x) * 12 + 8] = 2.0 * (float)(x+1) / terrainW - 1.0;
data[(y*terrainW + x) * 12 + 9] = 2.0 * (float)(y+1) / terrainH - 1.0;
data[(y*terrainW + x) * 12 + 10] = 2.0 * (float)(x+1) / terrainW - 1.0;
data[(y*terrainW + x) * 12 + 11] = 2.0 * (float)(y) / terrainH - 1.0;
}
}
glGenBuffers(1, &vboHeightField);
glBindVertexArray(vao[DT_SHADER]);
glBindBuffer(GL_ARRAY_BUFFER, vboHeightField);
glBufferData(GL_ARRAY_BUFFER, sizeof(GLfloat) * terrainW * terrainH * 12, data, GL_STATIC_DRAW);
glVertexAttribPointer(locVertexDT, 2, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(locVertexDT);
glBindVertexArray(0);
delete [] data;
}
// initialisation d'openGL
void initialiser()
{
// Create FBOs
posFBO = new FBO();
heightFBO = new FBO();
aaFBO = new FBO();
// Create Packets
packets = new Packets(packetBudget);
// couleur de l'arrière-plan
glClearColor( 0.5, 0.6, 0.8, 0.0 );
// activer les etats openGL
glEnable( GL_DEPTH_TEST );
// charger les textures
chargerTextures();
// allouer les UBO pour les variables uniformes
glGenBuffers( 4, ubo );
glGenVertexArrays(NB_SHADERS, vao);
// charger les nuanceurs
chargerNuanceurs();
// Initialize VBOs
initQuad();
initPacketMesh();
initHeightFieldMesh();
}
void conclure()
{
glUseProgram( 0 );
glDeleteVertexArrays( NB_SHADERS, vao );
glDeleteBuffers( 4, vbo );
glDeleteBuffers( 4, ubo );
delete sphere;
delete sphereLumi;
delete theiere;
delete tore;
delete cylindre;
delete cone;
delete posFBO;
delete heightFBO;
delete aaFBO;
delete packets;
}
void rasterizeWaveMeshPosition()
{
glUseProgram(progRasterizeWaveMeshPosition);
glClearColor(0.0, 0.0, 0.0, 0.0);
glUniformMatrix4fv( locmatrProjRWMP, 1, GL_FALSE, matrProjWide );
glUniformMatrix4fv( locmatrVisuRWMP, 1, GL_FALSE, matrVisu );
glUniformMatrix4fv( locmatrModelRWMP, 1, GL_FALSE, matrModel );
glBindVertexArray(vao[RWMP_SHADER]);
glDrawArrays(GL_TRIANGLES, 0, 6);
glBindVertexArray(0);
glUseProgram(0);
}
void displayPacketOutlined(int count)
{
glUseProgram(progDisplayPacketOutlined);
glBindVertexArray(vao[DPO_SHADER]);
glUniformMatrix4fv(locmatrModelDPO, 1, GL_FALSE, matrModel);
glUniformMatrix4fv(locmatrVisuDPO, 1, GL_FALSE, matrVisu);
glUniformMatrix4fv(locmatrProjDPO, 1, GL_FALSE, matrProj);
glDrawArrays(GL_POINTS, 0, count);
glBindVertexArray(0);
glUseProgram(0);
}
void addPacketDisplacement(int count)
{
glUseProgram(progAddPacketDisplacement);
glClearColor(0.0, 0.0, 0.0, 0.0);
glBindVertexArray(vao[APD_SHADER]);
glUniformMatrix4fv(locmatrModelAPD, 1, GL_FALSE, matrModel);
glUniformMatrix4fv(locmatrVisuAPD, 1, GL_FALSE, matrVisu);
glUniformMatrix4fv(locmatrProjAPD, 1, GL_FALSE, matrProjWide);
glEnable(GL_BLEND);
glDisable(GL_DEPTH_TEST);
glBlendFunc(GL_ONE, GL_ONE);
glBlendEquation(GL_FUNC_ADD);
glDrawArrays(GL_POINTS, 0, count);
glEnable(GL_DEPTH_TEST);
glDisable(GL_BLEND);
glBindVertexArray(0);
glUseProgram(0);
}
void displayTerrain()
{
glUseProgram(progDisplayTerrain);
glBindVertexArray(vao[DT_SHADER]);
glUniformMatrix4fv(locmatrModelDT, 1, GL_FALSE, matrModel);
glUniformMatrix4fv(locmatrVisuDT, 1, GL_FALSE, matrVisu);
glUniformMatrix4fv(locmatrProjDT, 1, GL_FALSE, matrProj);
glActiveTexture(GL_TEXTURE0); /* Default value, can be omitted */
glBindTexture(GL_TEXTURE_2D, texTerrain);
glUniform1i(locTerrainTexDT, 0);
glDrawArrays(GL_TRIANGLES, 0, terrainW * terrainH * 12);
glBindVertexArray(0);
glUseProgram(0);
}
void displayMicroMesh()
{
glUseProgram(progDisplayMicroMesh);
glBindVertexArray(vao[DMM_SHADER]);
glUniformMatrix4fv(locmatrModelDMM, 1, GL_FALSE, matrModel);
glUniformMatrix4fv(locmatrVisuDMM, 1, GL_FALSE, matrVisu);
glUniformMatrix4fv(locmatrProjDMM, 1, GL_FALSE, matrProj);
/* Setup textures */
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, texTerrain);
glUniform1i(locTerrainTexDMM, 0);
glActiveTexture(GL_TEXTURE0 + 1);
glBindTexture(GL_TEXTURE_2D, posFBO->GetRGBTex());
glUniform1i(locWaterPosTexDMM, 1);
glActiveTexture(GL_TEXTURE0 + 2);
glBindTexture(GL_TEXTURE_2D, heightFBO->GetRGBTex());
glUniform1i(locWaterHeightTexDMM, 2);
glDrawElements(GL_TRIANGLES, nIndexDMM, GL_UNSIGNED_INT, 0);
glBindVertexArray(0);
glUseProgram(0);
}
void afficherModele()
{
// Dessiner le modèle
matrModel.PushMatrix(); {
/* Create texture terrain positions */
posFBO->CommencerCapture();
rasterizeWaveMeshPosition();
posFBO->TerminerCapture();
updatePackets();
glClearColor( 0.5, 0.6, 0.8, 0.0 );
displayTerrain();
if (!debug)
displayMicroMesh();
} matrModel.PopMatrix();
}
// fonction d'affichage
void FenetreTP::afficherScene()
{
// effacer l'ecran et le tampon de profondeur
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
glUseProgram( progBase );
// définir le pipeline graphique
matrProj.Perspective( 30.0, (GLdouble)largeur_ / (GLdouble)hauteur_, 0.5, 4000.0 );
matrProjWide.Perspective( 60.0, (GLdouble)largeur_ / (GLdouble)hauteur_, 0.1, 15000.0 );
glUniformMatrix4fv( locmatrProjBase, 1, GL_FALSE, matrProj );
//matrVisu.LookAt( 0.0, 3.0, distCam, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0 );
// appliquer les rotations
glm::vec3 view = glm::vec3(0.0, 0.0, 1.0);
view = glm::rotate(view, (GLfloat)glm::radians(phiCam), glm::vec3(-1.0, 0.0, 0.0));
view = glm::rotate(view, (GLfloat)glm::radians(thetaCam), glm::vec3(0.0, 1.0, 0.0));
glm::vec3 forward = glm::normalize(glm::vec3(view.x, 0.0, view.z));
glm::vec3 up = glm::vec3(0.0, 1.0, 0.0);
glm::vec3 right = glm::normalize(glm::cross(forward, up));
cameraPos += movementIncr * ((goF - goB) * forward + (goR - goL) * right + (goU - goD) * up);
matrVisu.LookAt( cameraPos, cameraPos + view, glm::vec3(0.0, 1.0, 0.0));
glUniformMatrix4fv( locmatrVisuBase, 1, GL_FALSE, matrVisu );
matrModel.LoadIdentity();
glUniformMatrix4fv( locmatrModelBase, 1, GL_FALSE, matrModel );
// afficher les axes
if ( afficheAxes ) FenetreTP::afficherAxes( 1.0 );
afficherModele();
}
// fonction de redimensionnement de la fenêtre graphique
void FenetreTP::redimensionner( GLsizei w, GLsizei h )
{
std::cout << "Resizing to " << w << "×" << h << std::endl;
glViewport( 0, 0, w, h );
posFBO->Liberer();
posFBO->Init(WAVETEX_WIDTH_FACTOR * w, WAVETEX_HEIGHT_FACTOR * h);
heightFBO->Liberer();
heightFBO->Init(WAVETEX_WIDTH_FACTOR * w, WAVETEX_HEIGHT_FACTOR * h);
aaFBO->Liberer();
aaFBO->Init(AA_OVERSAMPLE_FACTOR * w, AA_OVERSAMPLE_FACTOR * h);
/* Create/resize display mesh */
int meshW = WAVEMESH_WIDTH_FACTOR * w; /*Ça fait un gros mouton */
int meshH = WAVEMESH_HEIGHT_FACTOR * h;
GLfloat *mesh = new GLfloat[meshW * meshH * 2];
nIndexDMM = 3 * 2 * (meshW - 1) * (meshH -1);
GLuint *index = new GLuint[nIndexDMM];
#pragma omp parallel for
for (int y = 0; y < meshH; ++y) {
for (int x = 0; x < meshW; ++x) {
mesh[(y * meshW + x) * 2 + 0] = (x + 0.5) / meshW;
mesh[(y * meshW + x) * 2 + 1] = (y + 0.5) / meshH;
}
}
#pragma omp parallel for
for (int y = 0; y < meshH - 1; ++y) {
for (int x = 0; x < meshW - 1; ++x) {
index[(y * (meshW - 1) + x) * 6 + 0] = y * meshW + x;
index[(y * (meshW - 1) + x) * 6 + 1] = y * meshW + x + 1;
index[(y * (meshW - 1) + x) * 6 + 2] = (y + 1) * meshW + x;
index[(y * (meshW - 1) + x) * 6 + 3] = y * meshW + x + 1;
index[(y * (meshW - 1) + x) * 6 + 4] = (y + 1) * meshW + x + 1;
index[(y * (meshW - 1) + x) * 6 + 5] = (y + 1) * meshW + x;
}
}
glGenBuffers(2, vboDMM);
glBindVertexArray(vao[DMM_SHADER]);
glBindBuffer(GL_ARRAY_BUFFER, vboDMM[0]);
glBufferData(GL_ARRAY_BUFFER, sizeof(GLfloat) * meshW * meshH * 2, mesh, GL_STATIC_DRAW);
glVertexAttribPointer(locVertexDMM, 2, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(locVertexDMM);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboDMM[1]);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(GLuint) * nIndexDMM, index, GL_STATIC_DRAW);
glBindVertexArray(0);
delete [] mesh;
delete [] index;
}
/* Key up */
void FenetreTP::clavierRelache( TP_touche touche)
{
switch ( touche )
{
/* Mouvement camera */
case TP_z: /* Forward */
goF = 0;
break;
case TP_s: /* Backward */
goB = 0;
break;
case TP_q: /* Left */
goL = 0;
break;
case TP_d: /* Right */
goR = 0;
break;
case TP_ESPACE:
goU = 0;
break;
case TP_CONTROLEGAUCHE:
goD = 0;
break;
default:
break;
}
}
// fonction de gestion du clavier
void FenetreTP::clavier( TP_touche touche )
{
// traitement des touches q et echap
switch ( touche )
{
case TP_ECHAP:
quit();
break;
/* Mouvement camera */
case TP_z: /* Forward */
goF = 1;
break;
case TP_s: /* Backward */
goB = 1;
break;
case TP_q: /* Left */
goL = 1;
break;
case TP_d: /* Right */
goR = 1;
break;
case TP_ESPACE: /* Up */
goU = 1;
break;
case TP_CONTROLEGAUCHE: /* Down */
goD = 1;
break;
case TP_h:
debug = !debug;
printf("Debug is %s!\n", (debug ? "active" : "inactive"));
break;
case TP_x: // Activer/désactiver l'affichage des axes
afficheAxes = !afficheAxes;
std::cout << "// Affichage des axes ? " << ( afficheAxes ? "OUI" : "NON" ) << std::endl;
break;
case TP_v: // Recharger les fichiers des nuanceurs et recréer le programme
chargerNuanceurs();
std::cout << "// Recharger nuanceurs" << std::endl;
break;
case TP_r:
packets->Reset();
printonce = 0;
printf("Reseting...\n");
break;
case TP_e:
// Send one wave front "One ping only."
packets->CreateCircularWavefront(0.0, 0.0, 2.0, 0.2, 1.0, 10000);
printonce = 0;
printf("Sending a circular wavefront...\n");
break;
case TP_f:
// Send one wave front "One ping only."
packets->CreateLinearWavefront(0.0, 0.0, 1.0, 0.0, 2.0, 0.2, 1.0, 10000);
printonce = 0;
printf("Sending a linear wavefront...\n");
break;
case TP_a:
// Send one packet
packets->CreateSpreadingPacket(0.0, 0.0, 1.0, 0.0, 1.0, 2.0, 0.2, 1.0, 10000);
printonce = 0;
printf("Sending a spreading packet...\n");
break;
case TP_0:
thetaCam = 0.0; phiCam = 0.0; distCam = 30.0; // placer les choses afin d'avoir une belle vue
break;
case TP_g: // Permuter l'affichage en fil de fer ou plein
modePolygone = ( modePolygone == GL_FILL ) ? GL_LINE : GL_FILL;
glPolygonMode( GL_FRONT_AND_BACK, modePolygone );
break;
case TP_p: // Permuter la rotation automatique du modèle
enmouvement = !enmouvement;
printf("Simulation %s\n", (enmouvement ? "running" : "stopped"));
break;
default:
std::cout << " touche inconnue : " << (char) touche << std::endl;
imprimerTouches();
break;
}
}
// fonction callback pour un clic de souris
int dernierX = 0; // la dernière valeur en X de position de la souris
int dernierY = 0; // la derniere valeur en Y de position de la souris
static enum { deplaceCam, deplaceSpotDirection, deplaceSpotPosition } deplace = deplaceCam;
static bool pressed = false;
void FenetreTP::sourisClic( int button, int state, int x, int y )
{
pressed = ( state == TP_PRESSE );
if ( pressed )
{
// on vient de presser la souris
dernierX = x;
dernierY = y;
switch ( button )
{
case TP_BOUTON_GAUCHE: // Tourner l'objet
deplace = deplaceCam;
break;
case TP_BOUTON_MILIEU: // Modifier l'orientation du spot
deplace = deplaceSpotDirection;
break;
case TP_BOUTON_DROIT: // Déplacer la lumière
deplace = deplaceSpotPosition;
break;
}
}
else
{
// on vient de relâcher la souris
}
}
void FenetreTP::sourisWheel(int x, int y) {}
// fonction de mouvement de la souris
void FenetreTP::sourisMouvement( int x, int y )
{
if ( pressed )
{
int dx = x - dernierX;
int dy = y - dernierY;
switch ( deplace )
{
case deplaceCam:
thetaCam -= dx / 9.0;
phiCam -= dy / 9.0;
break;
}
dernierX = x;
dernierY = y;
verifierAngles();
}
}
int main( int argc, char *argv[] )
{
// créer une fenêtre
FenetreTP fenetre( "Ripple" );
// allouer des ressources et définir le contexte OpenGL
initialiser();
bool boucler = true;
while ( boucler )
{
// mettre à jour la physique
calculerPhysique( );
// affichage
fenetre.afficherScene();
fenetre.swap();
// récupérer les événements et appeler la fonction de rappel
boucler = fenetre.gererEvenement();
}
// détruire les ressources OpenGL allouées
conclure();
return 0;
}