Add back lighting system

Code is taken from latest irrlicht trunk; this is relevant because there have been fixes to stencil shadows since 1.8.5 (irrlicht SVN revision 5933).

1 files changed, 113 insertions, 3 deletions

diff --git a/source/Irrlicht/CSceneManager.cpp b/source/Irrlicht/CSceneManager.cpp
index 8a16dd2..6882a5b 100644
--- a/source/Irrlicht/CSceneManager.cpp
+++ b/source/Irrlicht/CSceneManager.cpp
@@ -21,7 +21,15 @@
 #include "CBillboardSceneNode.h"

 #include "CAnimatedMeshSceneNode.h"

 #include "CCameraSceneNode.h"

+#include "CLightSceneNode.h"

 #include "CMeshSceneNode.h"

+

+#ifdef _IRR_COMPILE_WITH_SHADOW_VOLUME_SCENENODE_

+#include "CShadowVolumeSceneNode.h"

+#else

+#include "IShadowVolumeSceneNode.h"

+#endif // _IRR_COMPILE_WITH_SHADOW_VOLUME_SCENENODE_

+

 #include "CDummyTransformationSceneNode.h"

 #include "CEmptySceneNode.h"

 

@@ -234,6 +242,22 @@ ICameraSceneNode* CSceneManager::addCameraSceneNode(ISceneNode* parent,
 }

 

 

+//! Adds a dynamic light scene node. The light will cast dynamic light on all

+//! other scene nodes in the scene, which have the material flag video::MTF_LIGHTING

+//! turned on. (This is the default setting in most scene nodes).

+ILightSceneNode* CSceneManager::addLightSceneNode(ISceneNode* parent,

+	const core::vector3df& position, video::SColorf color, f32 range, s32 id)

+{

+	if (!parent)

+		parent = this;

+

+	ILightSceneNode* node = new CLightSceneNode(parent, this, id, position, color, range);

+	node->drop();

+

+	return node;

+}

+

+

 //! Adds a billboard scene node to the scene. A billboard is like a 3d sprite: A 2d element,

 //! which always looks to the camera. It is usually used for things like explosions, fire,

 //! lensflares and things like that.

@@ -432,6 +456,15 @@ u32 CSceneManager::registerNodeForRendering(ISceneNode* node, E_SCENE_NODE_RENDE
 			}

 		}

 		break;

+	case ESNRP_LIGHT:

+		// TODO: Point Light culling..

+		// Lighting model in irrlicht has to be redone..

+		//if (!isCulled(node))

+		{

+			LightList.push_back(node);

+			taken = 1;

+		}

+		break;

 	case ESNRP_SKY_BOX:

 		SkyBoxList.push_back(node);

 		taken = 1;

@@ -483,6 +516,13 @@ u32 CSceneManager::registerNodeForRendering(ISceneNode* node, E_SCENE_NODE_RENDE
 			}

 		}

 		break;

+	case ESNRP_SHADOW:

+		if (!isCulled(node))

+		{

+			ShadowNodeList.push_back(node);

+			taken = 1;

+		}

+		break;

 	case ESNRP_GUI:

 		if (!isCulled(node))

 		{

@@ -490,9 +530,6 @@ u32 CSceneManager::registerNodeForRendering(ISceneNode* node, E_SCENE_NODE_RENDE
 			taken = 1;

 		}

 

-	// as of yet unused

-	case ESNRP_LIGHT:

-	case ESNRP_SHADOW:

 	case ESNRP_NONE: // ignore this one

 		break;

 	}

@@ -503,10 +540,12 @@ u32 CSceneManager::registerNodeForRendering(ISceneNode* node, E_SCENE_NODE_RENDE
 void CSceneManager::clearAllRegisteredNodesForRendering()

 {

 	CameraList.clear();

+	LightList.clear();

 	SkyBoxList.clear();

 	SolidNodeList.clear();

 	TransparentNodeList.clear();

 	TransparentEffectNodeList.clear();

+	ShadowNodeList.clear();

 	GuiNodeList.clear();

 }

 

@@ -557,6 +596,36 @@ void CSceneManager::drawAll()
 		CameraList.set_used(0);

 	}

 

+	//render lights scenes

+	{

+		CurrentRenderPass = ESNRP_LIGHT;

+		Driver->getOverrideMaterial().Enabled = ((Driver->getOverrideMaterial().EnablePasses & CurrentRenderPass) != 0);

+

+		core::vector3df camWorldPos(0, 0, 0);

+		if (ActiveCamera)

+			camWorldPos = ActiveCamera->getAbsolutePosition();

+

+		core::array<DistanceNodeEntry> SortedLights;

+		SortedLights.set_used(LightList.size());

+		for (s32 light = (s32)LightList.size() - 1; light >= 0; --light)

+			SortedLights[light].setNodeAndDistanceFromPosition(LightList[light], camWorldPos);

+

+		SortedLights.set_sorted(false);

+		SortedLights.sort();

+

+		for(s32 light = (s32)LightList.size() - 1; light >= 0; --light)

+			LightList[light] = SortedLights[light].Node;

+

+		Driver->deleteAllDynamicLights();

+

+		Driver->setAmbientLight(AmbientLight);

+

+		u32 maxLights = LightList.size();

+

+		for (i=0; i< maxLights; ++i)

+			LightList[i]->render();

+	}

+

 	// render skyboxes

 	{

 		CurrentRenderPass = ESNRP_SKY_BOX;

@@ -581,6 +650,21 @@ void CSceneManager::drawAll()
 		SolidNodeList.set_used(0);

 	}

 

+	// render shadows

+	{

+		CurrentRenderPass = ESNRP_SHADOW;

+		Driver->getOverrideMaterial().Enabled = ((Driver->getOverrideMaterial().EnablePasses & CurrentRenderPass) != 0);

+

+		for (i=0; i<ShadowNodeList.size(); ++i)

+			ShadowNodeList[i]->render();

+

+		if (!ShadowNodeList.empty())

+			Driver->drawStencilShadow(true,ShadowColor, ShadowColor,

+				ShadowColor, ShadowColor);

+

+		ShadowNodeList.set_used(0);

+	}

+

 	// render transparent objects.

 	{

 		CurrentRenderPass = ESNRP_TRANSPARENT;

@@ -616,12 +700,38 @@ void CSceneManager::drawAll()
 

 		GuiNodeList.set_used(0);

 	}

+

+	LightList.set_used(0);

 	clearDeletionList();

 

 	CurrentRenderPass = ESNRP_NONE;

 }

 

 

+//! Sets the color of stencil buffers shadows drawn by the scene manager.

+void CSceneManager::setShadowColor(video::SColor color)

+{

+	ShadowColor = color;

+}

+

+

+//! Returns the current color of shadows.

+video::SColor CSceneManager::getShadowColor() const

+{

+	return ShadowColor;

+}

+

+IShadowVolumeSceneNode* CSceneManager::createShadowVolumeSceneNode(const IMesh* shadowMesh, ISceneNode* parent, s32 id, bool zfailmethod, f32 infinity)

+{

+#ifdef _IRR_COMPILE_WITH_SHADOW_VOLUME_SCENENODE_

+	return new CShadowVolumeSceneNode(shadowMesh, parent, this, id, zfailmethod, infinity);

+#else

+	return 0;

+#endif

+}

+

+

+

 //! Adds an external mesh loader.

 void CSceneManager::addExternalMeshLoader(IMeshLoader* externalLoader)

 {