tobast/mpri-graphics-project
2
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

Randomizing face colour for each face

Browse source 
Allows to easily identify each face.
This commit is contained in:
Théophile Bastian 2018-02-06 21:26:18 +01:00
parent 6e89298950
commit 66d6d89aeb
1 changed files with 7 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
render/GlutRender.cpp
View file

@ -3,6 +3,8 @@
#include <GL/gl.h> #include <GL/gl.h>
#include <GL/glut.h> #include <GL/glut.h>
#include <cstring> #include <cstring>
#include <random>
#include <ctime>
GlutRender& GlutRender::get_instance() { GlutRender& GlutRender::get_instance() {
static GlutRender instance; static GlutRender instance;
@ -67,6 +69,10 @@ void GlutRender::display() {
glLoadIdentity(); glLoadIdentity();
glTranslatef(0., 0., -6.); glTranslatef(0., 0., -6.);
std::default_random_engine rand_engine(time(NULL));
std::uniform_real_distribution<double> distribution;
auto rand_color = std::bind(distribution, rand_engine);
for(Mesh* mesh: meshes) { for(Mesh* mesh: meshes) {
const Point& mesh_center = mesh->get_center(); const Point& mesh_center = mesh->get_center();
@ -77,7 +83,7 @@ void GlutRender::display() {
Point p0 = face.pt(0, points) + mesh_center, Point p0 = face.pt(0, points) + mesh_center,
p1 = face.pt(1, points) + mesh_center, p1 = face.pt(1, points) + mesh_center,
p2 = face.pt(2, points) + mesh_center; p2 = face.pt(2, points) + mesh_center;
glColor3f(1.0f, 1.0f, 0.0f); glColor3f(rand_color(), rand_color(), rand_color());
glVertex3f(p0[0], p0[1], p0[2]); glVertex3f(p0[0], p0[1], p0[2]);
glVertex3f(p1[0], p1[1], p1[2]); glVertex3f(p1[0], p1[1], p1[2]);
glVertex3f(p2[0], p2[1], p2[2]); glVertex3f(p2[0], p2[1], p2[2]);