Add Chromium-only Blender WebEngine parity work

blender-5.2.0/intern/cycles/kernel/svm/camera.h

@@ -0,0 +1,37 @@
+/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
+ *
+ * SPDX-License-Identifier: Apache-2.0 */
+
+#pragma once
+
+#include "kernel/globals.h"
+
+#include "kernel/svm/node_types.h"
+#include "kernel/svm/util.h"
+
+CCL_NAMESPACE_BEGIN
+
+ccl_device_noinline void svm_node_camera(KernelGlobals kg,
+                                         ccl_private ShaderData *sd,
+                                         ccl_private float *ccl_restrict stack,
+                                         const ccl_global SVMNodeCamera &ccl_restrict node)
+{
+  const Transform tfm = kernel_data.cam.worldtocamera;
+  const float3 vector = transform_point(&tfm, sd->P);
+  const float zdepth = vector.z;
+  const float distance = len(vector);
+
+  if (stack_valid(node.vector_offset)) {
+    stack_store_float3(stack, node.vector_offset, normalize(vector));
+  }
+
+  if (stack_valid(node.zdepth_offset)) {
+    stack_store_float(stack, node.zdepth_offset, zdepth);
+  }
+
+  if (stack_valid(node.distance_offset)) {
+    stack_store_float(stack, node.distance_offset, distance);
+  }
+}
+
+CCL_NAMESPACE_END