From 7d46b0d1db496a6ab124d265215c32d77876a373 Mon Sep 17 00:00:00 2001
From: Erik Reckase <e.reckase@gmail.com>
Date: Thu, 5 May 2011 18:09:23 -0600
Subject: [PATCH] Done with 77.  Will pick and choose the rest.

---
 cuburn/code/variations.py | 81 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 81 insertions(+)

diff --git a/cuburn/code/variations.py b/cuburn/code/variations.py
index 6d6678f..d9cb4bb 100644
--- a/cuburn/code/variations.py
+++ b/cuburn/code/variations.py
@@ -765,4 +765,85 @@ var(69, 'oscope', """
         oy += w*ty;
     """)
 
+var(70, 'polar2', """
+    float p2v = w / M_PI;
+    ox += p2v * atan2f(x,y);
+    oy += 0.5f * p2v * logf(tx*tx + ty*ty);
+    """)
+
+var(71, 'popcorn2', """
+    float c = {{px.get('xf.popcorn2_c')}};
+    ox += w * (tx + {{px.get('xf.popcorn2_x')}} * sinf(tanf(ty*c)));
+    oy += w * (ty + {{px.get('xf.popcorn2_y')}} * sinf(tanf(tx*c)));
+    """)
+
+var(72, 'scry', """
+    /* note that scry does not multiply by weight, but as the */
+    /* values still approach 0 as the weight approaches 0, it */
+    /* should be ok                                           */ 
+    float t = tx*tx + ty*ty;
+    float r = 1.0f / (sqrtf(t) * (t + 1.0f/w));
+    ox += tx*r;
+    oy += ty*r;
+    """)
+
+var(73, 'separation', """
+    float sx2 = {{px.get('xf.separation_x * xf.separation_x', 'sx2')}};
+    float sy2 = {{px.get('xf.separation_y * xf.separation_y', 'sy2')}};
+    
+    if (tx > 0.0f)
+        ox += w * (sqrtf(tx*tx + sx2) - tx*{{ps.get('xf.separation_xinside')}});
+    else
+        ox -= w * (sqrtf(tx*tx + sx2) + tx*{{ps.get('xf.separation_xinside')}});
+   
+    if (ty > 0.0f)
+        oy += w * (sqrtf(ty*ty + sy2) - ty*{{ps.get('xf.separation_yinside')}});
+    else
+        oy -= w * (sqrtf(ty*ty + sy2) + ty*{{ps.get('xf.separation_yinside')}});
+    """)
+
+var(74, 'split', """
+    if (cosf(tx*{{px.get('xf.split_xsize')}}*M_PI) >= 0.0f)
+        oy += w*ty;
+    else
+        oy -= w*ty;
+      
+    if (cosf(ty*{{px.get('xf.split_ysize')}}*M_PI) >= 0.0f)
+        ox += w*tx;
+    else
+        ox -= w*tx;
+    """)
+
+var(75, 'splits', """
+    if (tx >= 0.0f)
+        ox += w*(tx + {{ps.get('xf.splits_x')}});
+    else
+        ox += w*(tx - {{ps.get('xf.splits_x')}});
+      
+    if (f->ty >= 0)
+        oy += w*(ty + {{ps.get('xf.splits_y')}});
+    else
+        oy += w*(ty - {{ps.get('xf.splits_y')}});
+    """)
+
+var(76, 'stripes', """
+    float roundx = floorf(tx + 0.5f);
+    float offsetx = tx - roundx;
+    ox += w * (offsetx * (1.0f - {{ps.get('xf.stripes_space')}}) + roundx);
+    oy += w * (ty + offsetx*offsetx*{{ps.get('xf.stripes_warp')}});
+    """)
+
+var(77, 'wedge', """
+    float r = sqrtf(tx*tx + ty*ty);
+    float a = atan2f(ty, tx) + {{ps.get('xf.wedge_swirl')}} * r;
+    float wc = {{ps.get('xf.wedge_count')}};
+    float wa = {{ps.get('xf.wedge_angle')}};
+    float c = floorf((wc * a + M_PI) * M_1_PI * 0.5f);
+    float comp_fac = 1 - wa * wc * M_1_PI * 0.5f;
+    a = a * comp_fac + c * wa;
+    r = w * (r + {{ps.get('xf.wedge_hole')}});
+    ox += r * cosf(a);
+    oy += r * sinf(a);
+    """)
+