From 7f793b35b2c3a49d5a3ee617b2a5417022157aa0 Mon Sep 17 00:00:00 2001
From: Daniel Genrich <daniel.genrich@gmx.net>
Date: Mon, 23 Jul 2012 09:18:32 +0000
Subject: Start to work on Smoke + Cycles.

Goal is a proof of concept, then cleaning code up :-)
---
 intern/cycles/blender/blender_object.cpp | 25 +++++++++++++++++++++++++
 intern/cycles/blender/blender_sync.h     |  1 +
 intern/cycles/render/object.h            |  5 +++++
 3 files changed, 31 insertions(+)

diff --git a/intern/cycles/blender/blender_object.cpp b/intern/cycles/blender/blender_object.cpp
index a928bd9a6ea..2a34da078ea 100644
--- a/intern/cycles/blender/blender_object.cpp
+++ b/intern/cycles/blender/blender_object.cpp
@@ -53,6 +53,26 @@ bool BlenderSync::BKE_object_is_modified(BL::Object b_ob)
 	return false;
 }
 
+/* Only looking for Smoke domains */
+// TODO DG: disable rendering of smoke flow??
+bool BlenderSync::BKE_modifiers_isSmokeEnabled(BL::Object b_ob)
+{
+	BL::Object::modifiers_iterator b_modifiers;
+	for(b_ob.modifiers.begin(b_modifiers); b_modifiers != b_ob.modifiers.end(); ++b_modifiers) {
+		BL::Modifier mod = (*b_modifiers);
+
+		if (mod.is_a(&RNA_SmokeModifier)) {
+			BL::SmokeModifier smd(mod);
+
+			if(smd.smoke_type() == BL::SmokeModifier::smoke_type_DOMAIN) {
+				return true;
+			}
+		}
+	}
+
+	return false;
+}
+
 bool BlenderSync::object_is_mesh(BL::Object b_ob)
 {
 	BL::ID b_ob_data = b_ob.data();
@@ -242,6 +262,11 @@ void BlenderSync::sync_object(BL::Object b_parent, int b_index, BL::Object b_ob,
 	/* mesh sync */
 	object->mesh = sync_mesh(b_ob, object_updated);
 
+	if(BKE_modifiers_isSmokeEnabled(b_ob))
+	{
+		// TODO DG sync_volume(b_ob);
+	}
+
 	if(use_holdout != object->use_holdout) {
 		object->use_holdout = use_holdout;
 		scene->object_manager->tag_update(scene);
diff --git a/intern/cycles/blender/blender_sync.h b/intern/cycles/blender/blender_sync.h
index 8c31c4b86ba..b614fca6363 100644
--- a/intern/cycles/blender/blender_sync.h
+++ b/intern/cycles/blender/blender_sync.h
@@ -90,6 +90,7 @@ private:
 	/* util */
 	void find_shader(BL::ID id, vector<uint>& used_shaders, int default_shader);
 	bool BKE_object_is_modified(BL::Object b_ob);
+	bool BKE_modifiers_isSmokeEnabled(BL::Object b_ob);
 	bool object_is_mesh(BL::Object b_ob);
 	bool object_is_light(BL::Object b_ob);
 	bool object_use_particles(BL::Object b_ob);
diff --git a/intern/cycles/render/object.h b/intern/cycles/render/object.h
index 6d674731b07..bacfb8f18a4 100644
--- a/intern/cycles/render/object.h
+++ b/intern/cycles/render/object.h
@@ -57,6 +57,11 @@ public:
 	int particle_id;
 	vector<Particle> particles;
 
+	/* Voxel / 3D volume data */
+	bool use_volume;
+	int3 resolution;
+	vector<float3> grid;
+
 	Object();
 	~Object();
 
-- 
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