1 files changed, 50 insertions, 0 deletions
diff --git a/intern/cycles/kernel/kernel_path_common.h b/intern/cycles/kernel/kernel_path_common.h
new file mode 100644
index 00000000000..1912dfa16ed
--- /dev/null
+++ b/intern/cycles/kernel/kernel_path_common.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2011-2015 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.
+ */
+
+CCL_NAMESPACE_BEGIN
+
+ccl_device_inline void kernel_path_trace_setup(KernelGlobals *kg,
+                                               ccl_global uint *rng_state,
+                                               int sample,
+                                               int x, int y,
+                                               ccl_addr_space RNG *rng,
+                                               ccl_addr_space Ray *ray)
+{
+	float filter_u;
+	float filter_v;
+
+	int num_samples = kernel_data.integrator.aa_samples;
+
+	path_rng_init(kg, rng_state, sample, num_samples, rng, x, y, &filter_u, &filter_v);
+
+	/* sample camera ray */
+
+	float lens_u = 0.0f, lens_v = 0.0f;
+
+	if(kernel_data.cam.aperturesize > 0.0f)
+		path_rng_2D(kg, rng, sample, num_samples, PRNG_LENS_U, &lens_u, &lens_v);
+
+	float time = 0.0f;
+
+#ifdef __CAMERA_MOTION__
+	if(kernel_data.cam.shuttertime != -1.0f)
+		time = path_rng_1D(kg, rng, sample, num_samples, PRNG_TIME);
+#endif
+
+	camera_sample(kg, x, y, filter_u, filter_v, lens_u, lens_v, time, ray);
+}
+
+CCL_NAMESPACE_END