// runs the raytrace over all tests and saves the corresponding images
int main(int argc, char** argv) {
// test that glfw and glew are linked properly
uiloop();
message("GLFW and GLEW seem to work\n\n");
// test max_component function
vec3f v(1,2,-3);
float max_val = max_component(v);
message("Result of max_component: %f\n", max_val);
// test sum of three vectors
vec3f va(1,0,0);
vec3f vb(0,4,0);
vec3f vc(0,0,2);
vec3f vabc = sum_three(va, vb, vc);
message("Result of sum_three: %s\n", tostring(vabc).c_str());
// test sum of vectors
vector<vec3f> vs = {
{3.14,1.5,2.7},
{2.71,8.2,8.2},
{1.61,8.0,3.4},
{1.41,4.2,1.4},
};
vec3f vsum = sum_many(vs);
message("Result of sum_many: %s\n", tostring(vsum).c_str());
message("\nThis message indicates a successful build!\n\n");
return 0;
}
EXPORT bool scatter_front(
Front *front)
{
COMPONENT max_comp;
INTERFACE *intfc = front->interf;
RECT_GRID *gr = front->rect_grid;
bool status;
bool sav_copy = copy_intfc_states();
bool sav_intrp = interpolate_intfc_states(intfc);
int i, dim = gr->dim;
DEBUG_ENTER(scatter_front)
max_comp = max_component(intfc);
pp_global_imax(&max_comp,1L);
add_time_start(3);
if ((dim == 3) && debugging("consistency"))
{
(void) printf("Check consistency of interface "
"before scatter_front()\n");
if (!consistent_interface(intfc))
{
screen("ERROR in scatter_front(), input interface is "
"inconsistent\n");
clean_up(ERROR);
}
(void) printf("Interface into scatter_front is consistent\n");
}
if (dim == 2)
{
for (i = 0; i < dim; ++i)
if ((gr->lbuf[i] > 0) || (gr->ubuf[i] > 0))
break;
if (i == dim)
{
DEBUG_LEAVE(scatter_front)
status = FUNCTION_SUCCEEDED; /* No subdomains to process */
return pp_min_status(status);
}
}
set_copy_intfc_states(YES);
interpolate_intfc_states(intfc) = NO;
status = form_subintfc_via_communication(front);
//if(dim == 3)
// delete_outside_surface(front->interf);
max_comp = max_component(intfc);
pp_global_imax(&max_comp,1L);
max_component(intfc) = max_comp;
interpolate_intfc_states(intfc) = sav_intrp;
set_copy_intfc_states(sav_copy);
if ((status) && (dim == 3) && debugging("consistency"))
{
(void) printf("Check consistency of interface ");
(void) printf("after scatter_front()\n");
if (!consistent_interface(intfc))
{
screen("ERROR in scatter_front(), output interface is "
"inconsistent\n");
clean_up(ERROR);
}
}
DEBUG_LEAVE(scatter_front)
status = pp_min_status(status);
add_time_end(3);
return status;
} /*end scatter_front*/
Shape* read_ply(const string& filename, bool flipface, bool normalize, bool flipyz) {
FILE* f = fopen(filename.c_str(), "rt");
if(not f) ERROR("cannot open file %s", filename.c_str());
char line[LINE_SIZE];
// magic
fgets(line, LINE_SIZE, f);
if(not _startswith(line, "ply")) ERROR("unknown file format");
// format
fgets(line, LINE_SIZE, f);
if(not _startswith(line, "format")) ERROR("unknown file format");
// skip till vertex
fgets(line, LINE_SIZE, f);
while(not _startswith(line, "element vertex")) fgets(line, LINE_SIZE, f);
// vertex
int vertex_num = 0;
sscanf(line, "element vertex %d", &vertex_num);
// vertex props
int vertex_pos = -1, vertex_norm = -1, vertex_uv = -1, vertex_col8 = -1, vertex_colf = -1;
int vertex_vals = 0;
fgets(line, LINE_SIZE, f);
while(_startswith(line, "property")) {
if(_startswith(line, "property float x") or _startswith(line, "property float32 x")) vertex_pos = vertex_vals;
if(_startswith(line, "property float nx") or _startswith(line, "property float32 nx")) vertex_norm = vertex_vals;
if(_startswith(line, "property uchar diffuse_red") or _startswith(line, "property uint8 diffuse_red")) vertex_col8 = vertex_vals;
if(_startswith(line, "property uchar red") or _startswith(line, "property uint8 red")) vertex_col8 = vertex_vals;
if(_startswith(line, "property float diffuse_red") or _startswith(line, "property float32 diffuse_red")) vertex_colf = vertex_vals;
if(_startswith(line, "property float red") or _startswith(line, "property float32 red")) vertex_colf = vertex_vals;
vertex_vals ++;
fgets(line, LINE_SIZE, f);
}
// skip till faces
while(not _startswith(line, "element face")) fgets(line, LINE_SIZE, f);
// face
int face_num = 0;
sscanf(line, "element face %d", &face_num);
// face props
int face_start = -1;
int face_vals = 0;
fgets(line, LINE_SIZE, f);
while(_startswith(line, "property")) {
if(_startswith(line, "property list uchar int vertex_ind")) face_start = face_vals;
if(_startswith(line, "property list uchar uint vertex_ind")) face_start = face_vals;
if(_startswith(line, "property list uint8 int32 vertex_ind")) face_start = face_vals;
if(_startswith(line, "property list char int vertex_ind")) face_start = face_vals;
if(_startswith(line, "property list int8 int32 vertex_ind")) face_start = face_vals;
face_vals ++;
fgets(line, LINE_SIZE, f);
}
ERROR_IF_NOT(face_start>=0, "bad face start");
// skip till end of header
while(not _startswith(line, "end_header")) fgets(line, LINE_SIZE, f);
// read vertex data
vector<vec3f> pos; vector<vec3f> norm; vector<vec2f> uv;
for(int i = 0; i < vertex_num; i ++) {
vector<float> vdata;
for(int j = 0; j < vertex_vals; j ++) {
float v;
fscanf(f, "%f", &v);
vdata.push_back(v);
}
pos.push_back( vec3f(vdata[vertex_pos+0],vdata[vertex_pos+1],vdata[vertex_pos+2]) );
if(vertex_norm >= 0) norm.push_back( vec3f(vdata[vertex_norm+0],vdata[vertex_norm+1],vdata[vertex_norm+2]) );
if(vertex_uv >= 0) uv.push_back( vec2f(vdata[vertex_uv+0],vdata[vertex_uv+1] ));
}
if(normalize) {
range3f bbox;
for(auto v : pos) bbox = runion(bbox,v);
vec3f c = center(bbox); float s = 1/max_component(size(bbox));
for(vec3f& v : pos) v = (v-c)*s;
}
if(flipyz) {
for(vec3f& v : pos) swap(v.y,v.z);
for(vec3f& v : norm) swap(v.y,v.z);
}
// read vertex data
vector<vec3i> triangles; vector<vec4i> quads;
for(int i = 0; i < face_num; i ++) {
int n = 0; fscanf(f, "%d", &n);
if(n == 3) { vec3i face; for(int j=0;j<3;j++) fscanf(f, "%d", &(face[j])); triangles.push_back(face); }
if(n == 4) { vec4i face; for(int j=0;j<4;j++) fscanf(f, "%d", &(face[j])); quads.push_back(face); }
if(n != 3 and n != 4) ERROR("unsupported face type");
}
if(flipface) {
for(vec3i& t : triangles) swap(t.y,t.z);
for(vec4i& t : quads) swap(t.y,t.w);
}
fclose(f);
if(triangles.size() == 0 and quads.size() > 0) {
auto mesh = new Mesh();
mesh->pos = pos;
mesh->norm = norm;
mesh->texcoord = uv;
mesh->quad = quads;
return mesh;
} else if(triangles.size() > 0 and quads.size() == 0) {
auto mesh = new TriangleMesh();
mesh->pos = pos;
mesh->norm = norm;
mesh->texcoord = uv;
mesh->triangle = triangles;
return mesh;
} else if(triangles.size() > 0 and quads.size() > 0) {
auto mesh = new Mesh();
mesh->pos = pos;
mesh->norm = norm;
mesh->texcoord = uv;
mesh->triangle = triangles;
mesh->quad = quads;
return mesh;
} else { WARNING("empty mesh"); return 0; }
}
EXPORT COMPONENT new_component(
COMPONENT comp)
{
COMPONENT mincomp, maxcomp;
HYPER_SURF **hs;
INTERFACE *intfc;
struct Table *firstIT, *T;
static COMPONENT last_reused_comp = NO_COMP;
if (comp != NO_COMP)
{
firstIT = interface_table_list();
switch (comp)
{
case UNUSED_COMP:
maxcomp = INT_MIN; mincomp = INT_MAX;
for (T = firstIT; T != NULL; T = T->next)
{
intfc = T->interface;
maxcomp = max(maxcomp,max_component(intfc));
mincomp = min(mincomp,min_component(intfc));
}
++maxcomp;
for (comp = mincomp; comp <= maxcomp; ++comp)
{
if (comp == last_reused_comp)
continue;
for (T = firstIT; T != NULL; T = T->next)
{
intfc = T->interface;
if (is_exterior_comp(comp,intfc) ||
is_excluded_comp(comp,intfc))
break;
if (intfc->hss != NULL)
{
for (hs = intfc->hss; *hs; ++hs)
{
if ((positive_component(*hs) == comp) ||
(negative_component(*hs) == comp))
break;
}
if (*hs)
break;
}
}
if (T == NULL)
break;
}
last_reused_comp = comp;
break;
case NEW_COMP:
comp = INT_MIN;
for (T = firstIT; T != NULL; T = T->next)
{
intfc = T->interface;
comp = max(comp,max_component(intfc));
}
++comp;
last_reused_comp = NO_COMP;
break;
default:
last_reused_comp = NO_COMP;
break;
}
for (T = firstIT; T != NULL; T = T->next)
{
intfc = T->interface;
max_component(intfc) = max(comp,max_component(intfc));
min_component(intfc) = min(comp,min_component(intfc));
}
}
return comp;
} /*end new_component*/