diff options
| -rw-r--r-- | test/fractals.cxx | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/test/fractals.cxx b/test/fractals.cxx index 4892d6180..2bf32ca44 100644 --- a/test/fractals.cxx +++ b/test/fractals.cxx @@ -312,7 +312,7 @@ long TreeSeed; /* for srand48 - remember so we can build "same tree" /* * recursive tree drawing thing, fleshed out from class notes pseudocode */ -void FractalTree(int level) +void FractalTree(int level, long level_seed) { long savedseed; /* need to save seeds while building tree too */ @@ -328,26 +328,25 @@ void FractalTree(int level) glTranslatef(0, 1, 0); glScalef(0.7, 0.7, 0.7); - savedseed = (long)((ulong)drand48()*ULONG_MAX); + srand48(level_seed+1); glPushMatrix(); glRotatef(110 + drand48()*40, 0, 1, 0); glRotatef(30 + drand48()*20, 0, 0, 1); - FractalTree(level + 1); + FractalTree(level + 1, level_seed+4); glPopMatrix(); - srand48(savedseed); - savedseed = (long)((ulong)drand48()*ULONG_MAX); + srand48(level_seed+2); glPushMatrix(); glRotatef(-130 + drand48()*40, 0, 1, 0); glRotatef(30 + drand48()*20, 0, 0, 1); - FractalTree(level + 1); + FractalTree(level + 1, level_seed+5); glPopMatrix(); - srand48(savedseed); + srand48(level_seed+3); glPushMatrix(); glRotatef(-20 + drand48()*40, 0, 1, 0); glRotatef(30 + drand48()*20, 0, 0, 1); - FractalTree(level + 1); + FractalTree(level + 1, level_seed+6); glPopMatrix(); glPopMatrix(); @@ -421,7 +420,7 @@ void CreateTree(void) glPushAttrib(GL_LIGHTING_BIT); glCallList(TREE_MAT); glTranslatef(0, -1, 0); - FractalTree(0); + FractalTree(0, TreeSeed); glPopAttrib(); glPopMatrix(); glEndList(); |