Fix T40370: cycles CUDA baking timeout with high number of AA samples.

Now baking does one AA sample at a time, just like final render. There is
also some code for shader antialiasing that solves T40369 but it is disabled
for now because there may be unpredictable side effects.

4 files changed, 41 insertions, 2 deletions

diff --git a/intern/cycles/render/bake.cpp b/intern/cycles/render/bake.cpp
index aa317ab672f..c68f6e1f08e 100644
--- a/intern/cycles/render/bake.cpp
+++ b/intern/cycles/render/bake.cpp
@@ -15,6 +15,7 @@
  */
 
 #include "bake.h"
+#include "integrator.h"
 
 CCL_NAMESPACE_BEGIN
 
@@ -152,6 +153,7 @@ bool BakeManager::bake(Device *device, DeviceScene *dscene, Scene *scene, Progre
 	task.shader_eval_type = shader_type;
 	task.shader_x = 0;
 	task.shader_w = d_output.size();
+	task.num_samples = is_aa_pass(shader_type)? scene->integrator->aa_samples: 1;
 	task.get_cancel = function_bind(&Progress::get_cancel, &progress);
 
 	device->task_add(task);
@@ -203,4 +205,35 @@ void BakeManager::device_free(Device *device, DeviceScene *dscene)
 {
 }
 
+bool BakeManager::is_aa_pass(ShaderEvalType type)
+{
+	switch(type) {
+		case SHADER_EVAL_UV:
+		case SHADER_EVAL_NORMAL:
+			return false;
+		default:
+			return true;
+	}
+}
+
+bool BakeManager::is_light_pass(ShaderEvalType type)
+{
+	switch(type) {
+		case SHADER_EVAL_AO:
+		case SHADER_EVAL_COMBINED:
+		case SHADER_EVAL_SHADOW:
+		case SHADER_EVAL_DIFFUSE_DIRECT:
+		case SHADER_EVAL_GLOSSY_DIRECT:
+		case SHADER_EVAL_TRANSMISSION_DIRECT:
+		case SHADER_EVAL_SUBSURFACE_DIRECT:
+		case SHADER_EVAL_DIFFUSE_INDIRECT:
+		case SHADER_EVAL_GLOSSY_INDIRECT:
+		case SHADER_EVAL_TRANSMISSION_INDIRECT:
+		case SHADER_EVAL_SUBSURFACE_INDIRECT:
+			return true;
+		default:
+			return false;
+	}
+}
+
 CCL_NAMESPACE_END
diff --git a/intern/cycles/render/bake.h b/intern/cycles/render/bake.h
index ea403f7d39a..f91ba589b8b 100644
--- a/intern/cycles/render/bake.h
+++ b/intern/cycles/render/bake.h
@@ -17,10 +17,11 @@
 #ifndef __BAKE_H__
 #define __BAKE_H__
 
-#include "util_vector.h"
 #include "device.h"
 #include "scene.h"
-#include "session.h"
+
+#include "util_progress.h"
+#include "util_vector.h"
 
 CCL_NAMESPACE_BEGIN
 
@@ -64,6 +65,9 @@ public:
 	void device_update(Device *device, DeviceScene *dscene, Scene *scene, Progress& progress);
 	void device_free(Device *device, DeviceScene *dscene);
 
+	static bool is_light_pass(ShaderEvalType type);
+	static bool is_aa_pass(ShaderEvalType type);
+
 	bool need_update;
 
 private:
diff --git a/intern/cycles/render/light.cpp b/intern/cycles/render/light.cpp
index 1325627ef05..9a0a7ead696 100644
--- a/intern/cycles/render/light.cpp
+++ b/intern/cycles/render/light.cpp
@@ -66,6 +66,7 @@ static void shade_background_pixels(Device *device, DeviceScene *dscene, int res
 	main_task.shader_eval_type = SHADER_EVAL_BACKGROUND;
 	main_task.shader_x = 0;
 	main_task.shader_w = width*height;
+	main_task.num_samples = 1;
 	main_task.get_cancel = function_bind(&Progress::get_cancel, &progress);
 
 	/* disabled splitting for now, there's an issue with multi-GPU mem_copy_from */
diff --git a/intern/cycles/render/mesh_displace.cpp b/intern/cycles/render/mesh_displace.cpp
index 661fd9c66c1..4c0ee76299c 100644
--- a/intern/cycles/render/mesh_displace.cpp
+++ b/intern/cycles/render/mesh_displace.cpp
@@ -119,6 +119,7 @@ bool MeshManager::displace(Device *device, DeviceScene *dscene, Scene *scene, Me
 	task.shader_eval_type = SHADER_EVAL_DISPLACE;
 	task.shader_x = 0;
 	task.shader_w = d_output.size();
+	task.num_samples = 1;
 	task.get_cancel = function_bind(&Progress::get_cancel, &progress);
 
 	device->task_add(task);