int main(int argc, char *argv[]) {
Image *src;
int i, j;
float x, y, z;
Vector N;
Lighting *l;
Point p;
Point V;
Point lp;
Color BlueGrey;
Color Sun;
Color Cb;
Color Cs;
Color c;
int rows = 500, cols = 500;
color_set(&BlueGrey, 0.2, 0.25, 0.3);
color_set(&Sun, 0.9, 0.85, 0.8);
color_set(&Cb, 0.7, 0.2, 0.1);
color_set(&Cs, 0.3, 0.3, 0.3);
point_set(&V, 0.0, 4.0, 0.0, 1.0);
point_set(&lp, 1.0, 5.0, 1.0, 1.0);
src = image_create(rows, cols);
// add an ambient light and a point light, slightly below and to the right of the viewer
l = lighting_create();
lighting_add( l, LightAmbient, &BlueGrey, NULL, NULL, 0.0, 0.0 );
lighting_add( l, LightPoint, &Sun, NULL, &lp, 0.0, 0.0 );
// for each pixel in the image
for(i=0;i<rows;i++) {
// the z value is defined by the pixel (faux parallel projections)
z = -1 + i * (2.0/(rows-1));
for(j=0;j<cols;j++) {
// the x value is defined by the pixel (faux parallel projection)
x = -1 + j * (2.0/(cols-1));
y = 1.0 - x*x - z*z;
if( y <= 0.0 )
continue;
y = sqrt(y);
// the surface point and normal vector are the same since the sphere is centered on 0
p.val[0] = x;
p.val[1] = y;
p.val[2] = z;
vector_set( &N, x, y, z );
lighting_shading( l, &N, &V, &p, &Cb, &Cs, 32, 1, &c);
image_setColor( src, i, j, c );
}
}
image_write( src, "test9d.ppm");
return(0);
}
int main(int argc, char* argv[]){
Image* src;
Module *scene;
Module* GRAPHICS;
View3D view;
Matrix vtm, gtm;
DrawState *ds;
Lighting *light;
Point center;//center of animation
Polygon poly;//polygon that holds the animation path points
int frameNum;//holds the frame number for animation
char filename[100];//holds the frame name
Color Red;
Color Blue;
Color Green;
Color Grey;
Color Lemon;
Color Black;
Color White;
Color Yellow;
Color DarkAmbiant;
Color randColor[10];
//setting colors
Color_set(&Red, 1.0, 0.2, 0.1 );
Color_set(&Blue, 0.1, 0.1, 1.0);
Color_set(&Green, 0.1, 1, 0.1 );
Color_set(&White, 1, 1, 1 );
Color_set(&Grey, 0.7, 0.7, 0.7 );
Color_set(&Lemon, 1.0, 1.0, 0.8);
Color_set(&Black, 0.05, 0.05, 0.05);
Color_set(&Yellow, 1, 0.894118, 0.709804);
Color_set(&DarkAmbiant, 0.3, 0.3, 0.3);
Color_set(&randColor[0], 0, 1, 1);
Color_set(&randColor[1], 0.498039, 1, 0);
Color_set(&randColor[2], 1, 0.54902, 0);
Color_set(&randColor[3], 1, 0.0784314, 0.576471);
Color_set(&randColor[4], 1, 0.843137, 0);
Color_set(&randColor[5], 0.960784, 1, 0.980392);
Color_set(&randColor[6], 1, 0.647059, 0);
Color_set(&randColor[7], 1, 0.270588, 0);
Color_set(&randColor[8], 0, 1, 0.498039);
Color_set(&randColor[9], 1, 1, 0);
// setting the view
point_set3D( &(view.vrp), 35, 60, 30 );
vector_set( &(view.vpn), -view.vrp.val[0]+35, -view.vrp.val[1], -view.vrp.val[2]);
vector_set( &(view.vup), 0, 1, 0 );
view.d = 1;
view.du = 1.6;
view.dv = 0.9;
view.f = 1;
view.b = 200;
view.screenx = 1280;
view.screeny = 720;
matrix_setView3D( &vtm, &view );
matrix_identity( >m );
//creating GRAPHICS module
GRAPHICS = module_create();
module_alphabet_G(GRAPHICS);
module_identity(GRAPHICS);
module_translate(GRAPHICS, 10, 0, 0);
module_alphabet_R(GRAPHICS);
module_identity(GRAPHICS);
module_translate(GRAPHICS, 20, 0, 0);
module_alphabet_A(GRAPHICS);
module_identity(GRAPHICS);
module_translate(GRAPHICS, 30, 0, 0);
module_alphabet_P(GRAPHICS);
module_identity(GRAPHICS);
module_translate(GRAPHICS, 40, 0, 0);
module_alphabet_H(GRAPHICS);
module_identity(GRAPHICS);
module_translate(GRAPHICS, 50, 0, 0);
module_alphabet_I(GRAPHICS);
module_identity(GRAPHICS);
module_translate(GRAPHICS, 56, 0, 0);
module_alphabet_C(GRAPHICS);
module_identity(GRAPHICS);
module_translate(GRAPHICS, 68, 0, 0);
module_alphabet_S(GRAPHICS);
// setting the light
light = lighting_create();
lighting_add( light, LightAmbient, &Lemon, NULL, NULL, 0, 0);
lighting_add(light, LightPoint, &White , NULL, &view.vrp, 0, 0);
lighting_add(light, LightSpot, &White, &view.vpn, &view.vrp, cos(10*M_PI/180), 40);
//setting drawstate
ds = drawstate_create();
point_copy(&(ds->viewer), &(view.vrp) );
ds->shade = ShadePhong;
// ds->shade = ShadeDepth;
drawstate_setBody(ds, Black);
drawstate_setSurface(ds, Red);
drawstate_setSurfaceCoeff(ds, 10);
//Animation
frameNum =0;
//path #1
point_set3D(¢er, 40, 0, -10);
view_rotate_circle(&poly, ¢er, 100, 50, 0, 0, 0);
polygon_print(&poly, stdout);
for(int k=0; k<100; k++){
frameNum++;
point_set3D( &(view.vrp), poly.vertex[k].val[0], poly.vertex[k].val[1], poly.vertex[k].val[2]);
vector_set( &(view.vpn), -view.vrp.val[0], -view.vrp.val[1], -view.vrp.val[2] );
matrix_setView3D( &vtm, &view );
//creating scene module
scene = module_create();
module_module(scene, GRAPHICS);
// image
src = image_create( view.screeny, view.screenx );
image_fillrgb(src, 1.0, 1.0, 0.8);
//Drawing
module_draw( scene, &vtm, >m, ds, light, src );
sprintf(filename, "../images/frame_%.4d.ppm",frameNum);
image_write( src, filename);
}
//path #2
point_set3D(¢er, 40, 0, -10);
view_rotate_circle(&poly, ¢er, 100, 90, 0, 0 , 0);
// polygon_print(&poly, stdout);
for(int k=0; k<100; k++){
if(frameNum == 119){
point_print(&view.vrp, stdout);
break;
}
view_rotate_circle(&poly, ¢er, 50, 50+k, 0-2*k, 0 , 0);
frameNum++;
point_set3D( &(view.vrp), poly.vertex[k].val[0], poly.vertex[k].val[1], poly.vertex[k].val[2]);
vector_set( &(view.vpn), -view.vrp.val[0], -view.vrp.val[1], -view.vrp.val[2] );
matrix_setView3D( &vtm, &view );
//creating scene module
scene = module_create();
module_module(scene, GRAPHICS);
// image
src = image_create( view.screeny, view.screenx );
image_fillrgb(src, 1.0, 1.0, 0.8);
//Drawing
module_draw( scene, &vtm, >m, ds, light, src );
sprintf(filename, "../images/frame_%.4d.ppm",frameNum);
image_write( src, filename);
}
//path #3
for(int k=0; k<120; k++){
frameNum++;
if(frameNum <= 160){
point_set3D( &(view.vrp), -3.345+(k), 36.298+(k), 28.391-(k/2.0));
vector_set( &(view.vpn), -view.vrp.val[0]+k, -view.vrp.val[1], -view.vrp.val[2]);
matrix_setView3D( &vtm, &view );
}
//creating scene module
scene = module_create();
module_module(scene, GRAPHICS);
if(frameNum == 160){
light = lighting_create();
lighting_add( light, LightAmbient, &Grey, NULL, NULL, 0, 0);
}
// setting the light
if(frameNum == 165){
Point plight1;
point_set3D(&plight1, -5, 10, -10);
lighting_add(light, LightSpot, &White, &view.vpn, &plight1, cos(10*M_PI/180), 40);
}
if(frameNum == 175){
Point plight2;
point_set3D(&plight2, 85, 10, -10);
lighting_add(light, LightSpot, &White, &view.vpn, &plight2, cos(10*M_PI/180), 40);
}
if(frameNum == 180){
lighting_add(light, LightSpot, &White, &view.vpn, &view.vrp, cos(10*M_PI/180), 40);
}
if(frameNum >= 183){
light = lighting_create();
lighting_add( light, LightAmbient, &Grey, NULL, NULL, 0, 0);
int output1 = 0 + (rand() % (int)(10 - 0 + 1));
int output2 = 0 + (rand() % (int)(10 - 0 + 1));
int output3 = 0 + (rand() % (int)(10 - 0 + 1));
Point plight1;
point_set3D(&plight1, -5, 10, -10);
lighting_add(light, LightSpot, &randColor[output1], &view.vpn, &plight1, cos(10*M_PI/180), 40);
Point plight2;
point_set3D(&plight2, 85, 10, -10);
lighting_add(light, LightSpot, &randColor[output2], &view.vpn, &plight2, cos(10*M_PI/180), 40);
lighting_add(light, LightSpot, &randColor[output3], &view.vpn, &view.vrp, cos(10*M_PI/180), 40);
}
// image
src = image_create( view.screeny, view.screenx );
image_fillrgb(src, 1.0, 1.0, 0.8);
//setting drawstate
ds = drawstate_create();
point_copy(&(ds->viewer), &(view.vrp) );
ds->shade = ShadePhong;
// ds->shade = ShadeDepth;
drawstate_setBody(ds, Black);
drawstate_setSurface(ds, Red);
drawstate_setSurfaceCoeff(ds, 10);
//Drawing
module_draw( scene, &vtm, >m, ds, light, src );
sprintf(filename, "../images/frame_%.4d.ppm",frameNum);
image_write( src, filename);
}
//***Uncomment for making the .gif animation***
printf("Making the demo.gif file....\n");
system("convert -delay 10 ../images/frame_*.ppm ../images/demo.gif");
printf("Cleaning up...\n");
system("rm -f ../images/frame_*.ppm");
printf("Finished Successfully :)\n");
return(0);
}