Changeset 2723Tweet

Timestamp:

Aug 15, 2008, 9:05:58 PM (14 years ago)

Author:

Sam Hocevar

Message:

• Fix OpenGL orientation (it's supposed to be right-handed).
• Add a grayscale plane to illustrate non-orthogonality.

File:

• research/2008-rubik/colorcube/visu.c (modified) (2 diffs)

research/2008-rubik/colorcube/visu.c

@@ -71 +71 @@
 
 #define F(x) ((x)*1.01 - 0.005)
-#define CP       glColor4f(x0,y0,z0,0.5); glVertex3f(y0,x0,z0)
-#define BP       glColor3f(0.0,0.0,0.0); glVertex3f(F(y0),F(x0),F(z0))
+#define CP       glColor4f(x0,y0,z0,0.5); glVertex3f(x0,y0,z0)
+#define BP       glColor3f(0.0,0.0,0.0); glVertex3f(F(x0),F(y0),F(z0))
 #define BLACK    x0 = y0 = z0 = 0.0
 #define RED      x0 = 1.0; y0 = z0 = 0.0
@@ -127 +127 @@
             WHITE; BP; XRED; BP;
         glEnd();
+        glTranslatef(.5, .5, .4);
+        glColor4f(.5, .5, .5, .5);
+        glBegin(GL_QUADS);
+            glVertex3f(0.891063,-0.45388,0);
+            glVertex3f(0.0773943,0.151941,-0.985355);
+            glVertex3f(-0.891063,0.45388,0);
+            glVertex3f(-0.0773943,-0.151941,0.985355);
+        glEnd();
     glPopMatrix();