Merge branch 'master' into blender2.8

6 files changed, 23 insertions, 0 deletions

diff --git a/intern/cycles/kernel/filter/filter_reconstruction.h b/intern/cycles/kernel/filter/filter_reconstruction.h
index b7bf322f9ce..58740d5b06a 100644
--- a/intern/cycles/kernel/filter/filter_reconstruction.h
+++ b/intern/cycles/kernel/filter/filter_reconstruction.h
@@ -61,8 +61,13 @@ ccl_device_inline void kernel_filter_construct_gramian(int x, int y,
 	                                make_int2(x+dx, y+dy), buffer + q_offset,
 	                                pass_stride, *rank, design_row, transform, stride);
 
+#ifdef __KERNEL_GPU__
 	math_trimatrix_add_gramian_strided(XtWX, (*rank)+1, design_row, weight, stride);
 	math_vec3_add_strided(XtWY, (*rank)+1, design_row, weight * q_color, stride);
+#else
+	math_trimatrix_add_gramian(XtWX, (*rank)+1, design_row, weight);
+	math_vec3_add(XtWY, (*rank)+1, design_row, weight * q_color);
+#endif
 }
 
 ccl_device_inline void kernel_filter_finalize(int x, int y,
diff --git a/intern/cycles/kernel/shaders/node_math.osl b/intern/cycles/kernel/shaders/node_math.osl
index f309ef7c6f3..c5fcbc311d3 100644
--- a/intern/cycles/kernel/shaders/node_math.osl
+++ b/intern/cycles/kernel/shaders/node_math.osl
@@ -95,6 +95,8 @@ shader node_math(
 		Value = safe_modulo(Value1, Value2);
 	else if (type == "absolute")
 		Value = fabs(Value1);
+	else if (type == "arctan2")
+		Value = atan2(Value1, Value2);
 
 	if (use_clamp)
 		Value = clamp(Value, 0.0, 1.0);
diff --git a/intern/cycles/kernel/svm/svm_math_util.h b/intern/cycles/kernel/svm/svm_math_util.h
index 1ce7777aac3..8e6bc73ddc7 100644
--- a/intern/cycles/kernel/svm/svm_math_util.h
+++ b/intern/cycles/kernel/svm/svm_math_util.h
@@ -92,6 +92,8 @@ ccl_device float svm_math(NodeMath type, float Fac1, float Fac2)
 		Fac = safe_modulo(Fac1, Fac2);
 	else if(type == NODE_MATH_ABSOLUTE)
 		Fac = fabsf(Fac1);
+	else if(type == NODE_MATH_ARCTAN2)
+		Fac = atan2f(Fac1, Fac2);
 	else if(type == NODE_MATH_CLAMP)
 		Fac = saturate(Fac1);
 	else
diff --git a/intern/cycles/kernel/svm/svm_types.h b/intern/cycles/kernel/svm/svm_types.h
index 4c3a5975fb8..dc62e25b340 100644
--- a/intern/cycles/kernel/svm/svm_types.h
+++ b/intern/cycles/kernel/svm/svm_types.h
@@ -259,6 +259,7 @@ typedef enum NodeMath {
 	NODE_MATH_GREATER_THAN,
 	NODE_MATH_MODULO,
 	NODE_MATH_ABSOLUTE,
+	NODE_MATH_ARCTAN2,
 	NODE_MATH_CLAMP /* used for the clamp UI option */
 } NodeMath;
 
diff --git a/intern/cycles/render/nodes.cpp b/intern/cycles/render/nodes.cpp
index 01399c85bc0..c468924fa66 100644
--- a/intern/cycles/render/nodes.cpp
+++ b/intern/cycles/render/nodes.cpp
@@ -4953,6 +4953,7 @@ NODE_DEFINE(MathNode)
 	type_enum.insert("greater_than", NODE_MATH_GREATER_THAN);
 	type_enum.insert("modulo", NODE_MATH_MODULO);
 	type_enum.insert("absolute", NODE_MATH_ABSOLUTE);
+	type_enum.insert("arctan2", NODE_MATH_ARCTAN2);
 	SOCKET_ENUM(type, "Type", type_enum, NODE_MATH_ADD);
 
 	SOCKET_BOOLEAN(use_clamp, "Use Clamp", false);
diff --git a/intern/cycles/util/util_math_matrix.h b/intern/cycles/util/util_math_matrix.h
index 382dad64ea5..9ffcb9659b2 100644
--- a/intern/cycles/util/util_math_matrix.h
+++ b/intern/cycles/util/util_math_matrix.h
@@ -144,6 +144,18 @@ ccl_device_inline void math_trimatrix_add_gramian_strided(ccl_global float *A,
 	}
 }
 
+ccl_device_inline void math_trimatrix_add_gramian(ccl_global float *A,
+                                                  int n,
+                                                  const float *ccl_restrict v,
+                                                  float weight)
+{
+	for(int row = 0; row < n; row++) {
+		for(int col = 0; col <= row; col++) {
+			MATHS(A, row, col, 1) += v[row]*v[col]*weight;
+		}
+	}
+}
+
 /* Transpose matrix A inplace. */
 ccl_device_inline void math_matrix_transpose(ccl_global float *A, int n, int stride)
 {