Model* billboardModel(void)
{
int vertexCount = 4;
int triangleCount = 2;
GLfloat vertexArray[] = { -1.0f,5.0f,0.0f,
1.0f,5.0f,0.0f,
-1.0f,0.0f,0.0f,
1.0f,0.0f,0.0f};
GLfloat normalArray[] = { 0.0f,0.0f,1.0f,
0.0f,0.0f,1.0f,
0.0f,0.0f,1.0f,
0.0f,0.0f,1.0f,};
GLfloat texCoordArray[] = { 1.0f,0.0f,
0.0f,0.0f,
1.0f,1.0f,
0.0f,1.0f};
GLuint indexArray[] = { 0,2,1,1,2,3};
Model* m = LoadDataToModel(
vertexArray,
normalArray,
texCoordArray,
NULL,
indexArray,
vertexCount,
triangleCount*3);
return m;
}
Model* GenerateTerrain(TextureData *tex)
{
int vertexCount = tex->width * tex->height;
int triangleCount = (tex->width-1) * (tex->height-1) * 2;
int x, z;
GLfloat *vertexArray = malloc(sizeof(GLfloat) * 3 * vertexCount);
GLfloat *normalArray = malloc(sizeof(GLfloat) * 3 * vertexCount);
GLfloat *texCoordArray = malloc(sizeof(GLfloat) * 2 * vertexCount);
GLuint *indexArray = malloc(sizeof(GLuint) * triangleCount*3);
printf("bpp %d\n", tex->bpp);
for (x = 0; x < tex->width; x++)
for (z = 0; z < tex->height; z++)
{
// Vertex array. You need to scale this properly
vertexArray[(x + z * tex->width)*3 + 0] = x / 1.0;
vertexArray[(x + z * tex->width)*3 + 1] = tex->imageData[(x + z * tex->width) * (tex->bpp/8)] / 20.0;
vertexArray[(x + z * tex->width)*3 + 2] = z / 1.0;
// Normal vectors. You need to calculate these.
normalArray[(x + z * tex->width)*3 + 0] = 0.0;
normalArray[(x + z * tex->width)*3 + 1] = 1.0;
normalArray[(x + z * tex->width)*3 + 2] = 0.0;
// Texture coordinates. You may want to scale them.
texCoordArray[(x + z * tex->width)*2 + 0] = x; // (float)x / tex->width;
texCoordArray[(x + z * tex->width)*2 + 1] = z; // (float)z / tex->height;
}
for (x = 0; x < tex->width-1; x++)
for (z = 0; z < tex->height-1; z++)
{
// Triangle 1
indexArray[(x + z * (tex->width-1))*6 + 0] = x + z * tex->width;
indexArray[(x + z * (tex->width-1))*6 + 1] = x + (z+1) * tex->width;
indexArray[(x + z * (tex->width-1))*6 + 2] = x+1 + z * tex->width;
// Triangle 2
indexArray[(x + z * (tex->width-1))*6 + 3] = x+1 + z * tex->width;
indexArray[(x + z * (tex->width-1))*6 + 4] = x + (z+1) * tex->width;
indexArray[(x + z * (tex->width-1))*6 + 5] = x+1 + (z+1) * tex->width;
}
// End of terrain generation
// Create Model and upload to GPU:
Model* model = LoadDataToModel(
vertexArray,
normalArray,
texCoordArray,
NULL,
indexArray,
vertexCount,
triangleCount*3);
return model;
}
Model* controlModel(void)
{
int vertexCount = 8;
int triangleCount = 6;
GLfloat vertexArray[] = {0.0f,0.0f,0.13f,
0.15f,0.0f,-0.13f,
-0.15f,0.0f,-0.13f,
0.0f,0.3f,0.13f,
0.15f,0.3f,-0.13f,
-0.15f,0.3f,-0.13f,
0.0f,0.0f,0.13f,
0.0f,0.3f,0.13f,};
GLfloat normalArray[] = {0.0f,0.0f,0.13f,
0.1f,0.0f,-0.13f,
-0.1f,0.0f,-0.13f,
0.0f,0.0f,0.13f,
0.1f,0.0f,-0.13f,
-0.1f,0.0f,-0.13f};
GLfloat texCoordArray[] = { 0.0f,0.0f,
0.6667f,0.0f,
0.3333f,0.0f,
0.0f,1.0f,
0.6667f,1.0f,
0.3333f,1.0f,
1.0f,0.0f,
1.0f,1.0f};
GLuint indexArray[] = { 0,3,2,
3,5,2,
2,5,1,
5,4,1,
1,4,6,
4,7,6};
Model* m = LoadDataToModel(
vertexArray,
normalArray,
texCoordArray,
NULL,
indexArray,
vertexCount,
triangleCount*3);
return m;
}
Model* generateCanvas()
{
// Create canvas to draw on
GLfloat square[] = { -1, -1, 0,
-1, 1, 0,
1, 1, 0,
1, -1, 0 };
GLfloat squareTexCoord[] = { 0, 0,
0, 1,
1, 1,
1, 0 };
GLuint squareIndices[] = { 0, 1, 2, 0, 2, 3 };
return LoadDataToModel(square, NULL, squareTexCoord, NULL, squareIndices, 4, 6);
free(squareIndices);
free(square);
free(squareTexCoord);
}
Model* generateCube(GLfloat s) {
GLfloat vertexArray[3 * 8] = { -s, -s, s,
s, -s, s,
s, s, s,
-s, s, s,
-s, -s, -s,
s, -s, -s,
s, s, -s,
-s, s, -s};
GLuint indexArray[6 * 2 * 3] = {0, 1, 2, 2, 3, 0,
3, 2, 6, 6, 7, 3,
7, 6, 5, 5, 4, 7,
4, 0, 3, 3, 7, 4,
0, 1, 5, 5, 4, 0,
1, 5, 6, 6, 2, 1};
// Create Model and upload to GPU.
return LoadDataToModel(vertexArray, NULL, NULL, NULL, indexArray, 8, 6 * 2 * 3);
}
/////////////////////////////////////////
// M A I N
//
int main(int argc, char **argv)
{
glutInit(&argc, argv);
glutInitWindowSize(512, 512);
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
glutInitContextVersion(3, 2); // Might not be needed in Linux
glutCreateWindow("Them bones, them bones");
glutDisplayFunc(DisplayWindow);
glutTimerFunc(20, &OnTimer, 0);
glutKeyboardFunc( keyboardFunc );
glutReshapeFunc(reshape);
// Set up depth buffer
glEnable(GL_DEPTH_TEST);
// initiering
#ifdef WIN32
glewInit();
#endif
BuildCylinder();
setupBones();
initBoneWeights();
// Build Model from cylinder data
cylinderModel = LoadDataToModel(
(GLfloat*) g_vertsRes,
(GLfloat*) g_normalsRes,
(GLfloat*) g_boneWeightVis, // texCoords
NULL, // (GLfloat*) g_boneWeights, // colors
(GLuint*) g_poly, // indices
kMaxRow*kMaxCorners,
kMaxg_poly * 3);
g_shader = loadShaders("shader.vert" , "shader.frag");
glutMainLoop();
return 0;
}
Model * generate_terrain(int size)
{
int i, j, x, z;
int tri_count = (size-1)*(size-1)*2;
int count = size*size;
Point3D tmp_normal;
GLfloat *vertices = malloc(sizeof(GLfloat) * 3 * size * size);
GLfloat *normals = malloc(sizeof(GLfloat) * 3 * size * size);
GLuint *indices = malloc(sizeof(GLuint) * 3 * tri_count);
for(x=0;x < size; x++)
{
for(z = 0;z < size; z++)
{
vertices[(z + x*size)*3 + 0] = x*6;
vertices[(z + x*size)*3 + 1] = 0*(random()-.5);
vertices[(z + x*size)*3 + 2] = z*6;
}
}
for(x=0;x < size; x++)
{
for(z = 0;z < size; z++)
{
calc_normal(vertices, x, z, size, &tmp_normal);
normals[(z + x*size)*3 + 0] = tmp_normal.x;
normals[(z + x*size)*3 + 1] = tmp_normal.y;
normals[(z + x*size)*3 + 2] = tmp_normal.z;
}
}
for(x=0;x < size-1; x++)
{
for(z = 0;z < size-1; z++)
{
indices[(x + z*(size-1))*6 + 0] = x + z*size;
indices[(x + z*(size-1))*6 + 1] = x + (z+1)*size;
indices[(x + z*(size-1))*6 + 2] = x + 1 + z*size;
indices[(x + z*(size-1))*6 + 3] = x + 1 + z*size;
indices[(x + z*(size-1))*6 + 4] = x + (z+1)*size;
indices[(x + z*(size-1))*6 + 5] = x + 1 + (z+1)*size;
}
}
//int j=0;
//for(j=0;j < 30;j++)
// spatial_smooth(vertices, size);
GLfloat Xre[size*size*6*6];
GLfloat Xim[size*size*6*6];
//Xre = malloc(sizeof(GLfloat)*size*size);
//Xim = malloc(sizeof(GLfloat)*size*size);
fft(vertices, size, Xre, Xim);
filter(Xre, Xim, size);
ifft(vertices, size, Xre, Xim);
//printf("%f\n", Xre[0][0]);
Model * m = LoadDataToModel(
vertices,
normals,
NULL,
NULL,
indices,
size*size,
(size-1)*(size-1)*2*3);
return m;
}
Model* GenerateTerrain(TextureData *tex)
{
int vertexCount = tex->width * tex->height;
int triangleCount = (tex->width-1) * (tex->height-1) * 2;
int x, z;
GLfloat *vertexArray = malloc(sizeof(GLfloat) * 3 * vertexCount);
GLfloat *normalArray = malloc(sizeof(GLfloat) * 3 * vertexCount);
GLfloat *texCoordArray = malloc(sizeof(GLfloat) * 2 * vertexCount);
GLuint *indexArray = malloc(sizeof(GLuint) * triangleCount*3);
printf("bpp %d\n", tex->bpp);
for (x = 0; x < tex->width; x++)
for (z = 0; z < tex->height; z++)
{
// Vertex array. You need to scale this properly
vertexArray[(x + z * tex->width)*3 + 0] = x / 1.0;
vertexArray[(x + z * tex->width)*3 + 1] = tex->imageData[(x + z * tex->width) * (tex->bpp/8)] / 20.0;
vertexArray[(x + z * tex->width)*3 + 2] = z / 1.0;
// Normal vectors. You need to calculate these.
normalArray[(x + z * tex->width)*3 + 0] = 0.0;
normalArray[(x + z * tex->width)*3 + 1] = 1.0;
normalArray[(x + z * tex->width)*3 + 2] = 0.0;
// Texture coordinates. You may want to scale them.
texCoordArray[(x + z * tex->width)*2 + 0] = x; // (float)x / tex->width;
texCoordArray[(x + z * tex->width)*2 + 1] = z; // (float)z / tex->height;
}
// Normal vector calculation pass
// p3
// p2 p1 p4
// p5
// T1: v(x,z) -> v(x,z-1) -> v(x-1,z) = p1 -> p3 -> p2
// T2: v(x,z) -> v(x+1,z) -> v(x,z-1) = p1 -> p4 -> p3
// T3: v(x,z) -> v(x,z+1) -> v(x+1,z) = p1 -> p5 -> p4
// T4: v(x,z) -> v(x-1,z) -> v(x,z+1) = p1 -> p2 -> p5
vec3 n1, n2, n3, n4, p1, p2, p3, p4, p5;
for (x = 0; x < tex->width-1; x++)
for (z = 0; z < tex->height-1; z++)
{
if (z == 0 || x == 0) continue; // leave edges untouched for now
p1.x = vertexArray[(x + z * tex->width)*3 + 0];
p1.y = vertexArray[(x + z * tex->width)*3 + 1];
p1.z = vertexArray[(x + z * tex->width)*3 + 2];
p2.x = vertexArray[((x-1) + z * tex->width)*3 + 0];
p2.y = vertexArray[((x-1) + z * tex->width)*3 + 1];
p2.z = vertexArray[((x-1) + z * tex->width)*3 + 2];
p3.x = vertexArray[(x + (z-1) * tex->width)*3 + 0];
p3.y = vertexArray[(x + (z-1) * tex->width)*3 + 1];
p3.z = vertexArray[(x + (z-1) * tex->width)*3 + 2];
p4.x = vertexArray[((x+1) + z * tex->width)*3 + 0];
p4.y = vertexArray[((x+1) + z * tex->width)*3 + 1];
p4.z = vertexArray[((x+1) + z * tex->width)*3 + 2];
p5.x = vertexArray[(x + (z+1) * tex->width)*3 + 0];
p5.y = vertexArray[(x + (z+1) * tex->width)*3 + 1];
p5.z = vertexArray[(x + (z+1) * tex->width)*3 + 2];
/*printf("p1: "); printVec3(p1);
printf("p2: "); printVec3(p2);
printf("p3: "); printVec3(p3);
printf("p4: "); printVec3(p4);
printf("p5: "); printVec3(p5);
*/
n1 = Normalize(CalcNormalVector(p1,p3,p2));
n2 = Normalize(CalcNormalVector(p1,p4,p3));
n3 = Normalize(CalcNormalVector(p1,p5,p4));
n4 = Normalize(CalcNormalVector(p1,p2,p5));
/*printf("n1: "); printVec3(n1);
printf("n2: "); printVec3(n2);
printf("n3: "); printVec3(n3);
printf("n4: "); printVec3(n4);
*/
// Average the 4 triangle normals
n1 = VectorAdd(VectorAdd(n1,n2), VectorAdd(n3,n4));
n1 = Normalize(n1);
normalArray[(x + z * tex->width)*3 + 0] = n1.x;
normalArray[(x + z * tex->width)*3 + 1] = n1.y;
normalArray[(x + z * tex->width)*3 + 2] = n1.z;
//printf("result: "); printVec3(n1);
}
for (x = 0; x < tex->width-1; x++)
for (z = 0; z < tex->height-1; z++)
{
// Triangle 1
indexArray[(x + z * (tex->width-1))*6 + 0] = x + z * tex->width;
indexArray[(x + z * (tex->width-1))*6 + 1] = x + (z+1) * tex->width;
indexArray[(x + z * (tex->width-1))*6 + 2] = x+1 + z * tex->width;
// Triangle 2
indexArray[(x + z * (tex->width-1))*6 + 3] = x+1 + z * tex->width;
indexArray[(x + z * (tex->width-1))*6 + 4] = x + (z+1) * tex->width;
indexArray[(x + z * (tex->width-1))*6 + 5] = x+1 + (z+1) * tex->width;
}
// End of terrain generation
// Create Model and upload to GPU:
Model* model = LoadDataToModel(
vertexArray,
normalArray,
texCoordArray,
NULL,
indexArray,
vertexCount,
triangleCount*3);
return model;
}
void GenerateTerrain(Maze* maze)
{
GLfloat b;
GLfloat skirt = 0;
int pit_start = 2000;
if (maze->obstacle == 0) {
pit_start = maze->obstacle_x_pos - 5;
}
int x, z;
int height_g = height_;
int width_g = maze->length;
maze->width = height_g-1;
int vertexCount = width_g * height_g;
int triangleCount = (width_g-1) * (height_g-1) * 2;
GLfloat *vertexArray = new GLfloat[sizeof(GLfloat) * 3 * vertexCount];
GLfloat *normalArray = new GLfloat[sizeof(GLfloat) * 3 * vertexCount];
GLfloat *texCoordArray = new GLfloat[sizeof(GLfloat) * 2 * vertexCount];
GLuint *indexArray = new GLuint[sizeof(GLuint) * triangleCount*3];
GLfloat last_b, pit = 0;
for (x = 0; x < width_g; x++)
for (z = 0; z < height_g; z++)
{
//if (z < 2 || z > height_g -2) {
if (z == 0 || z == height_g -1) {
skirt = 1.5;
// }
//else
// skirt = 1;
}
else{
skirt = 0;
}
if (x > pit_start && x < pit_start + 10) {
pit = 30;
}
else{
pit = 0;
}
// Vertex array. You need to scale this properly
vertexArray[(x + z * width_g)*3 + 0] = x / 1.0;
if (x < width_g - height_g) {
vertexArray[(x + z * width_g)*3 + 1] = 1.0*b - skirt - pit; //+ x*0.1;
last_b = vertexArray[(x + z * width_g)*3 + 1] + skirt + pit;
}
else{
vertexArray[(x + z * width_g)*3 + 1] = last_b - skirt - pit;
}
vertexArray[(x + z * width_g)*3 + 2] = z / 1.0;
// Beräkna normalvektorer
vec3 vector1 = vec3(0,0,0);
vec3 vector2 = vec3(0,0,0);
vec3 normalvektor = vec3(0, 1, 0);
if(x > 0 && z > 0){
vector1.x = vertexArray[(x-1 + z * width_g)*3 + 0] - vertexArray[(x + z * width_g)*3 + 0];
vector1.y = vertexArray[(x-1 + z * width_g)*3 + 1] - vertexArray[(x + z * width_g)*3 + 1];
vector1.z = vertexArray[(x-1 + z * width_g)*3 + 2] - vertexArray[(x + z * width_g)*3 + 2];
vector2.x = vertexArray[(x + (z-1) * width_g)*3 + 0] - vertexArray[(x + z * width_g)*3 + 0];
vector2.y = vertexArray[(x + (z-1) * width_g)*3 + 1] - vertexArray[(x + z * width_g)*3 + 1];
vector2.z = vertexArray[(x + (z-1) * width_g)*3 + 2] - vertexArray[(x + z * width_g)*3 + 2];
normalvektor = CrossProduct(vector2, vector1);
}
// Normal vectors. You need to calculate these.
normalArray[(x + z * width_g)*3 + 0] = normalvektor.x;
normalArray[(x + z * width_g)*3 + 1] = normalvektor.y;
normalArray[(x + z * width_g)*3 + 2] = normalvektor.z;
// Texture coordinates. You may want to scale them.
texCoordArray[(x + z * width_g)*2 + 0] = 2.0*(float)x / width_g;
texCoordArray[(x + z * width_g)*2 + 1] = 2.0*(float)z / height_g;
}
for (x = 0; x < width_g-1; x++)
for (z = 0; z < height_g-1; z++)
{
// Triangle 1
indexArray[(x + z * (width_g-1))*6 + 0] = x + z * width_g;
indexArray[(x + z * (width_g-1))*6 + 1] = x + (z+1) * width_g;
indexArray[(x + z * (width_g-1))*6 + 2] = x+1 + z * width_g;
// Triangle 2
indexArray[(x + z * (width_g-1))*6 + 3] = x+1 + z * width_g;
indexArray[(x + z * (width_g-1))*6 + 4] = x + (z+1) * width_g;
indexArray[(x + z * (width_g-1))*6 + 5] = x+1 + (z+1) * width_g;
}
// End of terrain generation
// Create Model and upload to GPU:
maze->track = LoadDataToModel(
vertexArray,
normalArray,
texCoordArray,
NULL,
indexArray,
vertexCount,
triangleCount*3);
maze->length = width_g;
maze->width = height_g;
}
Model* GenerateTerrain(TextureData *tex)
{
int vertexCount = tex->width * tex->height;
int triangleCount = (tex->width-1) * (tex->height-1) * 2;
int x, z;
//GLfloat *vertexArray = malloc(sizeof(GLfloat) * 3 * vertexCount);
vertexArray = malloc(sizeof(GLfloat) * 3 * vertexCount);
GLfloat *normalArray = malloc(sizeof(GLfloat) * 3 * vertexCount);
for(int i = 0; i < 3*vertexCount;i++){
normalArray[i] = 0;
}
GLfloat *texCoordArray = malloc(sizeof(GLfloat) * 2 * vertexCount);
GLuint *indexArray = malloc(sizeof(GLuint) * triangleCount*3);
printf("bpp %d\n", tex->bpp);
// Temporary normal vector
Point3D normal;
for (x = 0; x < tex->width; x++)
for (z = 0; z < tex->height; z++)
{
// Vertex array. You need to scale this properly
vertexArray[(x + z * tex->width)*3 + 0] = x / 1.0;
vertexArray[(x + z * tex->width)*3 + 1] =
tex->imageData[(x + z * tex->width) * (tex->bpp/8)] / 5.0;
//vertexArray[(x + z * tex->width)*3 + 1] = 0;
vertexArray[(x + z * tex->width)*3 + 2] = z / 1.0;
// Normal vectors. You need to calculate these.
if(x==0){
// Doing something to get rid of warnings
int a = 0;
a += 1;
} else if(x>1 && x<(tex->width-1) && z > 0 && z < (tex->height-1)){
//printf("In general case: x=%d, z=%d\n", x, z);
//Lower triangle
make_vertice_normal(vertexArray, x, z, tex->width, false, &normal);
//printf("Normal: (%f,%f,%f)\n", normal.x, normal.y, normal.z);
ScalarMult(&normal, 1.0/6, &normal);
put_vertex_normal(normalArray, x, z-1, tex->width, &normal);
put_vertex_normal(normalArray, x-1, z, tex->width, &normal);
put_vertex_normal(normalArray, x, z, tex->width, &normal);
//Upper triangle
make_vertice_normal(vertexArray, x, z, tex->width, true, &normal);
ScalarMult(&normal, 1.0/6, &normal);
put_vertex_normal(normalArray, x-1, z, tex->width, &normal);
put_vertex_normal(normalArray, x-1, z+1, tex->width, &normal);
put_vertex_normal(normalArray, x, z, tex->width, &normal);
} else if(x==1 && z==0){
//printf("In bottom left corner: x=%d, z=%d\n", x, z);
//Upper triangle
make_vertice_normal(vertexArray, x, z, tex->width, true, &normal);
//printf("Normal: (%f,%f,%f)\n", normal.x, normal.y, normal.z);
put_vertex_normal(normalArray, 0, 0, tex->width, &normal);
ScalarMult(&normal, 1.0/3, &normal);
put_vertex_normal(normalArray, 0, 1, tex->width, &normal);
put_vertex_normal(normalArray, 1, 1, tex->width, &normal);
} else if(x==tex->width-1 && z == tex->height-1){
//printf("In top right corner: x=%d, z=%d\n", x, z);
//Lower triangle
make_vertice_normal(vertexArray, x, z, tex->width, false, &normal);
//printf("Normal: (%f,%f,%f)\n", normal.x, normal.y, normal.z);
put_vertex_normal(normalArray, x, z, tex->width, &normal);
ScalarMult(&normal, 1.0/3, &normal);
put_vertex_normal(normalArray, x, z-1, tex->width, &normal);
put_vertex_normal(normalArray, x-1, z, tex->width, &normal);
} else if(x==1 && z < tex->height-1){
//printf("In left edge: x=%d, z=%d\n", x, z);
// Left edge
// Lower triangle
make_vertice_normal(vertexArray, x, z, tex->width, false, &normal);
//printf("Normal: (%f,%f,%f)\n", normal.x, normal.y, normal.z);
ScalarMult(&normal, 1.0/3, &normal);
put_vertex_normal(normalArray, x, z-1, tex->width, &normal);
put_vertex_normal(normalArray, x-1, z, tex->width, &normal);
ScalarMult(&normal, 1.0/2, &normal);
put_vertex_normal(normalArray, x, z, tex->width, &normal);
// Upper Triangle
make_vertice_normal(vertexArray, x, z, tex->width, true, &normal);
//printf("Normal: (%f,%f,%f)\n", normal.x, normal.y, normal.z);
ScalarMult(&normal, 1.0/3, &normal);
put_vertex_normal(normalArray, x-1, z, tex->width, &normal);
put_vertex_normal(normalArray, x-1, z+1, tex->width, &normal);
ScalarMult(&normal, 1.0/2, &normal);
put_vertex_normal(normalArray, x, z, tex->width, &normal);
} else if(z==0){
//printf("In bottom edge: x=%d, z=%d\n", x, z);
// Bottom edge
// Upper Triangle
make_vertice_normal(vertexArray, x, z, tex->width, true, &normal);
//printf("Normal: (%f,%f,%f)\n", normal.x, normal.y, normal.z);
ScalarMult(&normal, 1.0/3, &normal);
put_vertex_normal(normalArray, x, z, tex->width, &normal);
put_vertex_normal(normalArray, x-1, z, tex->width, &normal);
ScalarMult(&normal, 1.0/2, &normal);
put_vertex_normal(normalArray, x-1, z+1, tex->width, &normal);
} else if(x==tex->width-1 && z < tex->height-1){
//printf("In right edge: x=%d, z=%d\n", x, z);
// Right edge
// Lower triangle
make_vertice_normal(vertexArray, x, z, tex->width, false, &normal);
//printf("Normal: (%f,%f,%f)\n", normal.x, normal.y, normal.z);
ScalarMult(&normal, 1.0/3, &normal);
put_vertex_normal(normalArray, x, z-1, tex->width, &normal);
put_vertex_normal(normalArray, x, z, tex->width, &normal);
ScalarMult(&normal, 1.0/2, &normal);
put_vertex_normal(normalArray, x-1, z, tex->width, &normal);
// Upper Triangle
make_vertice_normal(vertexArray, x, z, tex->width, true, &normal);
//printf("Normal: (%f,%f,%f)\n", normal.x, normal.y, normal.z);
ScalarMult(&normal, 1.0/3, &normal);
put_vertex_normal(normalArray, x, z, tex->width, &normal);
ScalarMult(&normal, 1.0/2, &normal);
put_vertex_normal(normalArray, x-1, z, tex->width, &normal);
put_vertex_normal(normalArray, x-1, z+1, tex->width, &normal);
} else if(z==tex->height-1){
//printf("In top edge: x=%d, z=%d\n", x, z);
// Top edge
// Lower triangle
make_vertice_normal(vertexArray, x, z, tex->width, false, &normal);
//printf("Normal: (%f,%f,%f)\n", normal.x, normal.y, normal.z);
ScalarMult(&normal, 1.0/3, &normal);
put_vertex_normal(normalArray, x-1, z, tex->width, &normal);
put_vertex_normal(normalArray, x, z, tex->width, &normal);
ScalarMult(&normal, 1.0/2, &normal);
put_vertex_normal(normalArray, x, z-1, tex->width, &normal);
}
// Texture coordinates. You may want to scale them.
texCoordArray[(x + z * tex->width)*2 + 0] = 5*(float)x / tex->width;
texCoordArray[(x + z * tex->width)*2 + 1] = 5*(float)z / tex->height;
}
for (x = 0; x < tex->width-1; x++)
for (z = 0; z < tex->height-1; z++)
{
// Triangle 1
indexArray[(x + z * (tex->width-1))*6 + 0] = x + z * tex->width;
indexArray[(x + z * (tex->width-1))*6 + 1] = x + (z+1) * tex->width;
indexArray[(x + z * (tex->width-1))*6 + 2] = x+1 + z * tex->width;
// Triangle 2
indexArray[(x + z * (tex->width-1))*6 + 3] = x+1 + z * tex->width;
indexArray[(x + z * (tex->width-1))*6 + 4] = x + (z+1) * tex->width;
indexArray[(x + z * (tex->width-1))*6 + 5] = x+1 + (z+1) * tex->width;
}
// End of terrain generation
// Create Model and upload to GPU:
Model* model = LoadDataToModel(
vertexArray,
normalArray,
texCoordArray,
NULL,
indexArray,
vertexCount,
triangleCount*3);
return model;
}
void init(void)
{
dumpInfo(); // shader info
// GL inits
glClearColor(0.1, 0.1, 0.3, 0);
glClearDepth(1.0);
glEnable(GL_TEXTURE_2D);
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
// Load shader
shader = loadShaders("shaders/projekt.vert", "shaders/projekt.frag");
phongshader = loadShaders("shaders/phong.vert", "shaders/phong.frag");
passShader = loadShaders("shaders/plaintextureshader.vert", "shaders/plaintextureshader.frag");
joinshader = loadShaders("shaders/joinshader.vert", "shaders/joinshader.frag");
lightShader = loadShaders("shaders/illuminati.vert", "shaders/illuminati.frag");
cameraDepthShader = loadShaders("shaders/cameraDepth.vert", "shaders/cameraDepth.frag");
lightDepthShader = loadShaders("shaders/lightDepth.vert", "shaders/lightDepth.frag");
thickness = loadShaders("shaders/thickness.vert", "shaders/thickness.frag");
//shadow shaders
projTexShaderId = loadShaders("shaders/depth1V.vert", "shaders/depth1F.frag");
projTexShaderId2 = loadShaders("shaders/depth2V.vert", "shaders/depth2F.frag");
projTexMapUniform = glGetUniformLocation(projTexShaderId,"textureUnit");
plainShaderId = loadShaders("shaders/plain.vert", "shaders/plain.frag");
// Init FBOs
fbo_phong = initFBO(W, H, 0);
//fbo2 = initFBO(W, H, 0);
fbo_depth = initFBO2(W,H, 0, 1);
fbo_depth2 = initFBO2(W,H, 0, 1);
fbo3 = initFBO(W, H, 0);
fbo_sub = initFBO(W,H,0);
fbo_lightDepth = initFBO(W,H,0);
squareModel = LoadDataToModel(
square, NULL, squareTexCoord, NULL,
squareIndices, 4, 6);
cam = SetVector(0, 0, 0.01);
point = SetVector(0, 0, -10);
axis = SetVector(0, 1, 0);
// load the model
bunny = LoadModelPlus("objects/bunny2/bunny_unwrap_noextras_blender.obj");
LoadTGATextureSimple("textures/badBunny.tga", &thicknessBunny);
modelMatrix = Mult( modelMatrix, ArbRotate(axis, -0.6));
statue = LoadModelPlus("good_objects/statue_unwrapped_blender.obj");
LoadTGATextureSimple("textures/statue.tga", &thicknessStatue);
box = LoadModelPlus("good_objects/box_standard_blender.obj");
LoadTGATextureSimple("textures/box.tga", &thicknessBox);
box_bulge = LoadModelPlus("good_objects/box_bulge.obj");
box_valley = LoadModelPlus("good_objects/box_valley.obj");
box_stretched = LoadModelPlus("good_objects/box_stretched.obj");
// load the scenemodels
bottom = LoadModelPlus("objects/bottom.obj");
side1 = LoadModelPlus("objects/side1.obj");
side2 = LoadModelPlus("objects/side2.obj");
// load sphere
sphere = LoadModelPlus("objects/sphere.obj");
printf("%d vertices\n", sphere->numVertices);
printf("%d indices\n", sphere->numIndices);
//Light stuff
lightPosition = SetVector(-5.0,5.0,-4.0);
sphereModelMatrix = Mult(T(lightPosition.x, lightPosition.y, lightPosition.z), sphereModelMatrix);
lightColor = SetVector(1.0,1.0,1.0);
//Colors
bunnyColor = SetVector(1.0,0.4,1.0);
sceneColor = SetVector(0.2,0.2,0.7);
glutTimerFunc(5, &OnTimer, 0);
moveValue = 0.002;
moveX = moveValue;
zprInit(&viewMatrix, cam, point);
//modelMatrix = Mult( T(0.0, -2.4,0.0),modelMatrix);
}
/*************************
* Use the GPGPU Shader *
*************************/
void calculateNextPos(vector<glm::vec3> &particle, FBOstruct *fboPos, FBOstruct *fboOldPos, FBOstruct *fboVel, FBOstruct *fboOldVel, GLuint velocityEulerShader, GLuint pass, GLuint PositionEulerShader)
{
// en enkel fyrkant att rita på
GLfloat square[] = { -1, -1, 0,
-1, 1, 0,
1, 1, 0,
1, -1, 0 };
GLfloat squareTexCoord[] = { 0, 0,
0, 1,
1, 1,
1, 0 };
GLuint squareIndices[] = { 0, 1, 2, 0, 2, 3 };
Model* squareModel = LoadDataToModel(
square, NULL, squareTexCoord, NULL,
squareIndices, 4, 6);
glUseProgram(velocityEulerShader);
use2FBO(fboVel, fboOldVel, fboOldPos, velocityEulerShader);
glClearColor(0.0, 0.0, 0.0, 0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
//send shared varible to shader, only need to be done the first time
glUniform1f(glGetUniformLocation(velocityEulerShader, "nrOfParticlesVertically"), nrOfParticlesVertically);
glUniform1f(glGetUniformLocation(velocityEulerShader, "nrOfParticlesHorizontally"), nrOfParticlesHorizontally);
glUniform1f(glGetUniformLocation(velocityEulerShader, "timestep"), timestep);
glUniform1f(glGetUniformLocation(velocityEulerShader, "particleMass"), particleMass);
glUniform3f(glGetUniformLocation(velocityEulerShader, "g"), g.x, g.y, g.z);
glUniform1f(glGetUniformLocation(velocityEulerShader, "kSt"), kSt);
glUniform1f(glGetUniformLocation(velocityEulerShader, "kSh"), kSh);
glUniform1f(glGetUniformLocation(velocityEulerShader, "kB"), kB);
glUniform1f(glGetUniformLocation(velocityEulerShader, "oaSt"), oaSt);
glUniform1f(glGetUniformLocation(velocityEulerShader, "oaSh"), oaSh);
glUniform1f(glGetUniformLocation(velocityEulerShader, "oaB"), oaB);
glUniform1f(glGetUniformLocation(velocityEulerShader, "cSt"), cSt);
glUniform1f(glGetUniformLocation(velocityEulerShader, "cSh"), cSh);
glUniform1f(glGetUniformLocation(velocityEulerShader, "cB"), cB);
DrawModel(squareModel, velocityEulerShader, "in_Position", NULL, "in_TexCoord");
glUseProgram(pass);
useFBO(fboOldVel, fboVel, 0L); //MÅSTE VARA PÅ VÄNSTER SIDA!!!!!
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
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");
//current position is updated to new position, need currnt position therfor updated ond 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);
glUniform1f(glGetUniformLocation(PositionEulerShader, "timestep"), timestep);
DrawModel(squareModel, PositionEulerShader, "in_Position", NULL, "in_TexCoord");
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];
};
}
/**************************************
* Create initial textures on the FBOs*
**************************************/
void initGPGPU(FBOstruct *fboPos, FBOstruct *fboOldPos, FBOstruct *fboVel, FBOstruct *fboOldVel)
{
// en enkel fyrkant att rita på
GLfloat square[] = {-1, -1, 0,
-1, 1, 0,
1, 1, 0,
1, -1, 0 };
GLfloat squareTexCoord[] = {0, 0,
0, 1,
1, 1,
1, 0 };
GLuint squareIndices[] = { 0, 1, 2, 0, 2, 3 };
Model* squareModel = LoadDataToModel(square, NULL, squareTexCoord, NULL,squareIndices, 4, 6);
GLuint initVelosity = loadShaders("Shaders/initVelocityVertexShader.glsl", "Shaders/initVelocityFragmentShader.glsl");
GLuint passOverValues = loadShaders("Shaders/passVertexShader.glsl", "Shaders/passFragmentShader.glsl");
GLuint initPosition = loadShaders("Shaders/initPositionVertexShader.glsl", "Shaders/initPositionFragmentShader.glsl");
/****************
* Velosity FBO *
****************/
useFBO(fboVel, 0L, 0L);
glClearColor(0.0, 0.0, 0.0, 0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glUseProgram(initVelosity);
GLint locHeight = glGetUniformLocation(initVelosity, "height");
GLint locWidth = glGetUniformLocation(initVelosity, "width");
if (locHeight != -1 && locWidth != -1)
{
glUniform1f(locWidth, nrOfParticlesHorizontally);
glUniform1f(locHeight, nrOfParticlesVertically);
}
DrawModel(squareModel, initVelosity, "in_Position", NULL, "in_TexCoord");
/******************************************************
* Old velosity *
* The same sa velosity, so just pass over the values *
******************************************************/
useFBO(fboOldVel, fboVel, 0L);
glClearColor(0.0, 0.0, 0.0, 0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glUseProgram(passOverValues);
DrawModel(squareModel, passOverValues, "in_Position", NULL, "in_TexCoord");
//test so everything whent fine
//const size_t SIZE = nrOfParticlesVertically*nrOfParticlesHorizontally * 4;
//float particlePixels[SIZE];
/*glReadPixels(0, 0, nrOfParticlesVertically*nrOfParticlesHorizontally, 1, GL_RGBA, GL_FLOAT, particlePixels);
for (int j = 0; j < SIZE; j += 4)
{
cout << " Init velosity: " << particlePixels[j] << " " << particlePixels[j + 1] << " " << particlePixels[j + 2] << " " << particlePixels[j + 3] << endl;
}*/
/***************
* Position FBO *
****************/
useFBO(fboPos, 0L, 0L);
glClearColor(0.0, 0.0, 0.0, 0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glUseProgram(initPosition);
locHeight = glGetUniformLocation(initPosition, "height");
locWidth = glGetUniformLocation(initPosition, "width");
GLint locSpringLenght = glGetUniformLocation(initPosition, "springRestLenght");
if (locHeight != -1 && locWidth != -1 && locSpringLenght != -1)
{
glUniform1f(locWidth, nrOfParticlesHorizontally);
glUniform1f(locHeight, nrOfParticlesVertically);
glUniform1f(locSpringLenght, springRestLenght);
}
DrawModel(squareModel, initPosition, "in_Position", NULL, "in_TexCoord");
/******************************************************
* Old Position *
* The same sa position, so just pass over the values *
******************************************************/
useFBO(fboOldPos, fboPos, 0L);
glClearColor(0.0, 0.0, 0.0, 0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glUseProgram(passOverValues);
DrawModel(squareModel, passOverValues, "in_Position", NULL, "in_TexCoord");
}
Model* GenerateTerrain(TextureData *tex)
{
int vertexCount = tex->width * tex->height;
int triangleCount = (tex->width-1) * (tex->height-1) * 2;
int x, z;
vertexArray = malloc(sizeof(GLfloat) * 3 * vertexCount);
GLfloat *normalArray = malloc(sizeof(GLfloat) * 3 * vertexCount);
GLfloat *texCoordArray = malloc(sizeof(GLfloat) * 2 * vertexCount);
GLuint *indexArray = malloc(sizeof(GLuint) * triangleCount*3);
printf("bpp %d\n", tex->bpp);
for (x = 0; x < tex->width; x++)
for (z = 0; z < tex->height; z++)
{
GLfloat y = tex->imageData[(x + z * tex->width) * (tex->bpp/8)] / 10.0;
// Vertex array. You need to scale this properly
vertexArray[(x + z * tex->width)*3 + 0] = x / 1.0;
vertexArray[(x + z * tex->width)*3 + 1] = y;
vertexArray[(x + z * tex->width)*3 + 2] = z / 1.0;
// CalcNormalVector
// Normal vectors. You need to calculate these.
vec3 NV;
//Can't access elements outside the array
if ((x==0) || (x==tex->width) || (z==0) || (z==tex->width))
{
NV.x = 0.0;
NV.y = 1.0;
NV.z = 0.0;
}
else
{
vec3 p1,p2,p3;
GLfloat xmx1 = vertexArray[( (x-1) + z * tex->width)*3 + 0];
GLfloat ymx1 = vertexArray[( (x-1) + z * tex->width)*3 + 1];
GLfloat zmx1 = vertexArray[( (x-1) + z * tex->width)*3 + 2];
GLfloat xpx1 = vertexArray[( x + (z+1) * tex->width)*3 + 0];
GLfloat ypx1 = vertexArray[( x + (z+1) * tex->width)*3 + 1];
GLfloat zpx1 = vertexArray[( x + (z+1) * tex->width)*3 + 2];
p1 = SetVector(x,y,z); //Consider using x+1 x-1 instead
p2 = SetVector(xmx1,ymx1,zmx1);
p3 = SetVector(xpx1,ypx1,zpx1);
NV = Normalize(CalcNormalVector(p1,p2,p3));
}
normalArray[(x + z * tex->width)*3 + 0] = NV.x;
normalArray[(x + z * tex->width)*3 + 1] = NV.y;
normalArray[(x + z * tex->width)*3 + 2] = NV.z;
// Texture coordinates. You may want to scale them.
texCoordArray[(x + z * tex->width)*2 + 0] = x; // (float)x / tex->width;
texCoordArray[(x + z * tex->width)*2 + 1] = z; // (float)z / tex->height;
}
for (x = 0; x < tex->width-1; x++)
for (z = 0; z < tex->height-1; z++)
{
// Triangle 1
indexArray[(x + z * (tex->width-1))*6 + 0] = x + z * tex->width;
indexArray[(x + z * (tex->width-1))*6 + 1] = x + (z+1) * tex->width;
indexArray[(x + z * (tex->width-1))*6 + 2] = x+1 + z * tex->width;
// Triangle 2
indexArray[(x + z * (tex->width-1))*6 + 3] = x+1 + z * tex->width;
indexArray[(x + z * (tex->width-1))*6 + 4] = x + (z+1) * tex->width;
indexArray[(x + z * (tex->width-1))*6 + 5] = x+1 + (z+1) * tex->width;
}
// End of terrain generation
// Create Model and upload to GPU:
Model* model = LoadDataToModel(
vertexArray,
normalArray,
texCoordArray,
NULL,
indexArray,
vertexCount,
triangleCount*3);
return model;
}