1 files changed, 82 insertions, 0 deletions
diff --git a/intern/cycles/kernel/svm/white_noise.h b/intern/cycles/kernel/svm/white_noise.h
new file mode 100644
index 00000000000..d275a3f7068
--- /dev/null
+++ b/intern/cycles/kernel/svm/white_noise.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright 2011-2013 Blender Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+CCL_NAMESPACE_BEGIN
+
+ccl_device_noinline void svm_node_tex_white_noise(KernelGlobals kg,
+                                                  ccl_private ShaderData *sd,
+                                                  ccl_private float *stack,
+                                                  uint dimensions,
+                                                  uint inputs_stack_offsets,
+                                                  uint ouptuts_stack_offsets)
+{
+  uint vector_stack_offset, w_stack_offset, value_stack_offset, color_stack_offset;
+  svm_unpack_node_uchar2(inputs_stack_offsets, &vector_stack_offset, &w_stack_offset);
+  svm_unpack_node_uchar2(ouptuts_stack_offsets, &value_stack_offset, &color_stack_offset);
+
+  float3 vector = stack_load_float3(stack, vector_stack_offset);
+  float w = stack_load_float(stack, w_stack_offset);
+
+  if (stack_valid(color_stack_offset)) {
+    float3 color;
+    switch (dimensions) {
+      case 1:
+        color = hash_float_to_float3(w);
+        break;
+      case 2:
+        color = hash_float2_to_float3(make_float2(vector.x, vector.y));
+        break;
+      case 3:
+        color = hash_float3_to_float3(vector);
+        break;
+      case 4:
+        color = hash_float4_to_float3(make_float4(vector.x, vector.y, vector.z, w));
+        break;
+      default:
+        color = make_float3(1.0f, 0.0f, 1.0f);
+        kernel_assert(0);
+        break;
+    }
+    stack_store_float3(stack, color_stack_offset, color);
+  }
+
+  if (stack_valid(value_stack_offset)) {
+    float value;
+    switch (dimensions) {
+      case 1:
+        value = hash_float_to_float(w);
+        break;
+      case 2:
+        value = hash_float2_to_float(make_float2(vector.x, vector.y));
+        break;
+      case 3:
+        value = hash_float3_to_float(vector);
+        break;
+      case 4:
+        value = hash_float4_to_float(make_float4(vector.x, vector.y, vector.z, w));
+        break;
+      default:
+        value = 0.0f;
+        kernel_assert(0);
+        break;
+    }
+    stack_store_float(stack, value_stack_offset, value);
+  }
+}
+
+CCL_NAMESPACE_END