Cleanup: Remove unused Voronoi texture code.

Let's finally delete this code, after 4 years of being unused,
there really is no excuse anymore.

If we decide to extend the procedural textures in SVM, we can do this anytime in the future.

1 files changed, 86 insertions, 0 deletions

diff --git a/intern/cycles/kernel/svm/svm_voronoi.h b/intern/cycles/kernel/svm/svm_voronoi.h
index 5a2e6e97dd3..d612d7e973f 100644
--- a/intern/cycles/kernel/svm/svm_voronoi.h
+++ b/intern/cycles/kernel/svm/svm_voronoi.h
@@ -18,6 +18,92 @@ CCL_NAMESPACE_BEGIN
 
 /* Voronoi */
 
+ccl_device float voronoi_F1_distance(float3 p)
+{
+	/* returns squared distance in da */
+	float da = 1e10f;
+
+#ifndef __KERNEL_SSE2__
+	int ix = floor_to_int(p.x), iy = floor_to_int(p.y), iz = floor_to_int(p.z);
+
+	for(int xx = -1; xx <= 1; xx++) {
+		for(int yy = -1; yy <= 1; yy++) {
+			for(int zz = -1; zz <= 1; zz++) {
+				float3 ip = make_float3(ix + xx, iy + yy, iz + zz);
+				float3 vp = ip + cellnoise_color(ip);
+				float d = len_squared(p - vp);
+				da = min(d, da);
+			}
+		}
+	}
+#else
+	ssef vec_p = load4f(p);
+	ssei xyzi = quick_floor_sse(vec_p);
+
+	for(int xx = -1; xx <= 1; xx++) {
+		for(int yy = -1; yy <= 1; yy++) {
+			for(int zz = -1; zz <= 1; zz++) {
+				ssef ip = ssef(xyzi + ssei(xx, yy, zz, 0));
+				ssef vp = ip + cellnoise_color(ip);
+				float d = len_squared<1, 1, 1, 0>(vec_p - vp);
+				da = min(d, da);
+			}
+		}
+	}
+#endif
+
+	return da;
+}
+
+ccl_device float3 voronoi_F1_color(float3 p)
+{
+	/* returns color of the nearest point */
+	float da = 1e10f;
+
+#ifndef __KERNEL_SSE2__
+	float3 pa;
+	int ix = floor_to_int(p.x), iy = floor_to_int(p.y), iz = floor_to_int(p.z);
+
+	for(int xx = -1; xx <= 1; xx++) {
+		for(int yy = -1; yy <= 1; yy++) {
+			for(int zz = -1; zz <= 1; zz++) {
+				float3 ip = make_float3(ix + xx, iy + yy, iz + zz);
+				float3 vp = ip + cellnoise_color(ip);
+				float d = len_squared(p - vp);
+
+				if(d < da) {
+					da = d;
+					pa = vp;
+				}
+			}
+		}
+	}
+
+	return cellnoise_color(pa);
+#else
+	ssef pa, vec_p = load4f(p);
+	ssei xyzi = quick_floor_sse(vec_p);
+
+	for(int xx = -1; xx <= 1; xx++) {
+		for(int yy = -1; yy <= 1; yy++) {
+			for(int zz = -1; zz <= 1; zz++) {
+				ssef ip = ssef(xyzi + ssei(xx, yy, zz, 0));
+				ssef vp = ip + cellnoise_color(ip);
+				float d = len_squared<1, 1, 1, 0>(vec_p - vp);
+
+				if(d < da) {
+					da = d;
+					pa = vp;
+				}
+			}
+		}
+	}
+
+	ssef color = cellnoise_color(pa);
+	return (float3 &)color;
+#endif
+}
+
 ccl_device_noinline float4 svm_voronoi(NodeVoronoiColoring coloring, float3 p)
 {
 	if(coloring == NODE_VORONOI_INTENSITY) {