Merge of first part of changes from the apricot branch, especially

the features that are needed to run the game. Compile tested with
scons, make, but not cmake, that seems to have an issue not related
to these changes. The changes include:

* GLSL support in the viewport and game engine, enable in the game
  menu in textured draw mode.
* Synced and merged part of the duplicated blender and gameengine/
  gameplayer drawing code.
* Further refactoring of game engine drawing code, especially mesh
  storage changed a lot.
* Optimizations in game engine armatures to avoid recomputations.
* A python function to get the framerate estimate in game.

* An option take object color into account in materials.
* An option to restrict shadow casters to a lamp's layers.
* Increase from 10 to 18 texture slots for materials, lamps, word.
  An extra texture slot shows up once the last slot is used.

* Memory limit for undo, not enabled by default yet because it
  needs the .B.blend to be changed.
* Multiple undo for image painting.

* An offset for dupligroups, so not all objects in a group have to
  be at the origin.

1 files changed, 220 insertions, 317 deletions

diff --git a/source/gameengine/GamePlayer/common/GPC_RenderTools.cpp b/source/gameengine/GamePlayer/common/GPC_RenderTools.cpp
index a64c85f6c17..78d8eaf2aa3 100644
--- a/source/gameengine/GamePlayer/common/GPC_RenderTools.cpp
+++ b/source/gameengine/GamePlayer/common/GPC_RenderTools.cpp
@@ -27,141 +27,256 @@
  * ***** END GPL LICENSE BLOCK *****
  */
 
-#include <assert.h>
-
-#ifdef WIN32
-#pragma warning (disable : 4786)
-#include <windows.h>
-#endif 
-
 #include "GL/glew.h"
 
-#include <iostream>
-
-#include "GPC_RenderTools.h"
-
 #include "RAS_IRenderTools.h"
 #include "RAS_IRasterizer.h"
 #include "RAS_LightObject.h"
 #include "RAS_ICanvas.h"
 #include "RAS_GLExtensionManager.h"
 
-// next two includes/dependencies come from the shadow feature
-// it needs the gameobject and the sumo physics scene for a raycast
 #include "KX_GameObject.h"
-
-#include "GPC_PolygonMaterial.h"
 #include "KX_PolygonMaterial.h"
-#include "Value.h"
+#include "KX_BlenderMaterial.h"
+#include "KX_RayCast.h"
+#include "KX_IPhysicsController.h"
+
+#include "PHY_IPhysicsEnvironment.h"
 
-//#include "KX_BlenderGL.h" // for text printing
-//#include "KX_BlenderClientObject.h"
 #include "STR_String.h"
-#include "RAS_BucketManager.h" // for polymaterial (needed for textprinting)
-
-
-// Blender includes
-/* This list includes only data type definitions */
-#include "DNA_object_types.h"
-#include "DNA_material_types.h"
-#include "DNA_image_types.h"
-#include "DNA_lamp_types.h"
-#include "DNA_group_types.h"
-#include "DNA_scene_types.h"
-#include "DNA_camera_types.h"
-#include "DNA_property_types.h"
-#include "DNA_text_types.h"
-#include "DNA_sensor_types.h"
-#include "DNA_controller_types.h"
-#include "DNA_actuator_types.h"
-#include "DNA_mesh_types.h"
-#include "DNA_meshdata_types.h"
-#include "DNA_view3d_types.h"
-#include "DNA_world_types.h"
-
-#include "BKE_global.h"
-#include "BKE_image.h"
-#include "BKE_bmfont.h"
+
+#include "GPU_draw.h"
+
+#include "BKE_bmfont.h" // for text printing
 #include "BKE_bmfont_types.h"
-#include "BKE_main.h"
 
-#include "IMB_imbuf_types.h"
-// End of Blender includes
+#include "GPC_RenderTools.h"
 
-#include "KX_Scene.h"
-#include "KX_RayCast.h"
-#include "KX_IPhysicsController.h"
-#include "PHY_IPhysicsEnvironment.h"
-#include "KX_BlenderMaterial.h"
+unsigned int GPC_RenderTools::m_numgllights;
 
 GPC_RenderTools::GPC_RenderTools()
 {
 	m_font = BMF_GetFont(BMF_kHelvetica10);
+
 	glGetIntegerv(GL_MAX_LIGHTS, (GLint*) &m_numgllights);
 	if (m_numgllights < 8)
 		m_numgllights = 8;
 }
 
-
 GPC_RenderTools::~GPC_RenderTools()
 {
 }
 
+void GPC_RenderTools::BeginFrame(RAS_IRasterizer* rasty)
+{
+	m_clientobject = NULL;
+	m_lastlightlayer = -1;
+	m_lastlighting = false;
+	DisableOpenGLLights();
+}
 
 void GPC_RenderTools::EndFrame(RAS_IRasterizer* rasty)
 {
 }
 
+/* ProcessLighting performs lighting on objects. the layer is a bitfield that
+ * contains layer information. There are 20 'official' layers in blender. A
+ * light is applied on an object only when they are in the same layer. OpenGL
+ * has a maximum of 8 lights (simultaneous), so 20 * 8 lights are possible in
+ * a scene. */
 
-void GPC_RenderTools::BeginFrame(RAS_IRasterizer* rasty)
+void GPC_RenderTools::ProcessLighting(int layer, const MT_Transform& viewmat)
 {
-	m_clientobject=NULL;
-	m_modified=true;
-	DisableOpenGLLights();
+	if(m_lastlightlayer == layer)
+		return;
 
-}
+	m_lastlightlayer = layer;
 
-int GPC_RenderTools::ProcessLighting(int layer)
-{
-	int result = false;
+	bool enable = false;
 
-	if (layer < 0)
-	{
-		DisableOpenGLLights();
-		result = false;
-	} else
+	if (layer >= 0)
 	{
 		if (m_clientobject)
-		{	
-			if (applyLights(layer))
-			{
-				EnableOpenGLLights();
-				result = true;
-			} else
-			{
-				DisableOpenGLLights();
-				result = false;
-			}
+		{
+			if (layer == RAS_LIGHT_OBJECT_LAYER)
+				layer = static_cast<KX_GameObject*>(m_clientobject)->GetLayer();
+
+			enable = applyLights(layer, viewmat);
 		}
 	}
-	return result;
+
+	if(enable)
+		EnableOpenGLLights();
+	else
+		DisableOpenGLLights();
 }
 
 void GPC_RenderTools::EnableOpenGLLights()
 {
+	if(m_lastlighting == true)
+		return;
+
 	glEnable(GL_LIGHTING);
 	glEnable(GL_COLOR_MATERIAL);
-	glColorMaterial(GL_FRONT_AND_BACK,GL_DIFFUSE);
+
+	glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
+	glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, true);
 	if (GLEW_EXT_separate_specular_color || GLEW_VERSION_1_2)
 		glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
+	
+	m_lastlighting = true;
 }
 
-void GPC_RenderTools::RenderText2D(RAS_TEXT_RENDER_MODE mode, 
-								   const char* text, 
-								   int xco, 
-								   int yco, 
-								   int width, 
-								   int height)
+void GPC_RenderTools::DisableOpenGLLights()
+{
+	if(m_lastlighting == false)
+		return;
+
+	glDisable(GL_LIGHTING);
+	glDisable(GL_COLOR_MATERIAL);
+
+	m_lastlighting = false;
+}
+
+
+void GPC_RenderTools::SetClientObject(RAS_IRasterizer *rasty, void* obj)
+{
+	if (m_clientobject != obj)
+	{
+		bool ccw = (obj == NULL || !((KX_GameObject*)obj)->IsNegativeScaling());
+		rasty->SetFrontFace(ccw);
+
+		m_clientobject = obj;
+	}
+}
+
+bool GPC_RenderTools::RayHit(KX_ClientObjectInfo* client, KX_RayCast* result, void * const data)
+{
+	double* const oglmatrix = (double* const) data;
+	MT_Point3 resultpoint(result->m_hitPoint);
+	MT_Vector3 resultnormal(result->m_hitNormal);
+	MT_Vector3 left(oglmatrix[0],oglmatrix[1],oglmatrix[2]);
+	MT_Vector3 dir = -(left.cross(resultnormal)).safe_normalized();
+	left = (dir.cross(resultnormal)).safe_normalized();
+	// for the up vector, we take the 'resultnormal' returned by the physics
+	
+	double maat[16]={
+			left[0],        left[1],        left[2], 0,
+				dir[0],         dir[1],         dir[2], 0,
+		resultnormal[0],resultnormal[1],resultnormal[2], 0,
+				0,              0,              0, 1};
+	glTranslated(resultpoint[0],resultpoint[1],resultpoint[2]);
+	//glMultMatrixd(oglmatrix);
+	glMultMatrixd(maat);
+	return true;
+}
+
+void GPC_RenderTools::applyTransform(RAS_IRasterizer* rasty,double* oglmatrix,int objectdrawmode )
+{
+	/* FIXME:
+	blender: intern/moto/include/MT_Vector3.inl:42: MT_Vector3 operator/(const
+	MT_Vector3&, double): Assertion `!MT_fuzzyZero(s)' failed. 
+	
+	Program received signal SIGABRT, Aborted. 
+	[Switching to Thread 16384 (LWP 1519)] 
+	0x40477571 in kill () from /lib/libc.so.6 
+	(gdb) bt 
+	#7  0x08334368 in MT_Vector3::normalized() const () 
+	#8  0x0833e6ec in GPC_RenderTools::applyTransform(RAS_IRasterizer*, double*, int) () 
+	*/
+
+	if (objectdrawmode & RAS_IPolyMaterial::BILLBOARD_SCREENALIGNED ||
+		objectdrawmode & RAS_IPolyMaterial::BILLBOARD_AXISALIGNED)
+	{
+		// rotate the billboard/halo
+		//page 360/361 3D Game Engine Design, David Eberly for a discussion
+		// on screen aligned and axis aligned billboards
+		// assumed is that the preprocessor transformed all billboard polygons
+		// so that their normal points into the positive x direction (1.0 , 0.0 , 0.0)
+		// when new parenting for objects is done, this rotation
+		// will be moved into the object
+		
+		MT_Point3 objpos (oglmatrix[12],oglmatrix[13],oglmatrix[14]);
+		MT_Point3 campos = rasty->GetCameraPosition();
+		MT_Vector3 dir = (campos - objpos).safe_normalized();
+		MT_Vector3 up(0,0,1.0);
+
+		KX_GameObject* gameobj = (KX_GameObject*) this->m_clientobject;
+		// get scaling of halo object
+		MT_Vector3  size = gameobj->GetSGNode()->GetLocalScale();
+		
+		bool screenaligned = (objectdrawmode & RAS_IPolyMaterial::BILLBOARD_SCREENALIGNED)!=0;//false; //either screen or axisaligned
+		if (screenaligned)
+		{
+			up = (up - up.dot(dir) * dir).safe_normalized();
+		} else
+		{
+			dir = (dir - up.dot(dir)*up).safe_normalized();
+		}
+
+		MT_Vector3 left = dir.normalized();
+		dir = (left.cross(up)).normalized();
+
+		// we have calculated the row vectors, now we keep
+		// local scaling into account:
+
+		left *= size[0];
+		dir  *= size[1];
+		up   *= size[2];
+		double maat[16]={
+			left[0], left[1],left[2], 0,
+				dir[0], dir[1],dir[2],0,
+				up[0],up[1],up[2],0,
+				0,0,0,1};
+			glTranslated(objpos[0],objpos[1],objpos[2]);
+			glMultMatrixd(maat);
+			
+	} else
+	{
+		if (objectdrawmode & RAS_IPolyMaterial::SHADOW)
+		{
+			// shadow must be cast to the ground, physics system needed here!
+			MT_Point3 frompoint(oglmatrix[12],oglmatrix[13],oglmatrix[14]);
+			KX_GameObject *gameobj = (KX_GameObject*) this->m_clientobject;
+			MT_Vector3 direction = MT_Vector3(0,0,-1);
+
+			direction.normalize();
+			direction *= 100000;
+
+			MT_Point3 topoint = frompoint + direction;
+
+			KX_Scene* kxscene = (KX_Scene*) m_auxilaryClientInfo;
+			PHY_IPhysicsEnvironment* physics_environment = kxscene->GetPhysicsEnvironment();
+			KX_IPhysicsController* physics_controller = gameobj->GetPhysicsController();
+			
+			KX_GameObject *parent = gameobj->GetParent();
+			if (!physics_controller && parent)
+				physics_controller = parent->GetPhysicsController();
+			if (parent)
+				parent->Release();
+				
+			KX_RayCast::Callback<GPC_RenderTools> callback(this, physics_controller, oglmatrix);
+			if (!KX_RayCast::RayTest(physics_environment, frompoint, topoint, callback))
+			{
+				// couldn't find something to cast the shadow on...
+				glMultMatrixd(oglmatrix);
+			}
+		} else
+		{
+
+			// 'normal' object
+			glMultMatrixd(oglmatrix);
+		}
+	}
+}
+
+
+void GPC_RenderTools::RenderText2D(RAS_TEXT_RENDER_MODE mode,
+										 const char* text,
+										 int xco,
+										 int yco,									 
+										 int width,
+										 int height)
 {
 	STR_String tmpstr(text);
 	int lines;
@@ -234,21 +349,19 @@ void GPC_RenderTools::RenderText2D(RAS_TEXT_RENDER_MODE mode,
 		glDisable(GL_LIGHTING);
 }
 
-/**
- * Copied from KX_BlenderRenderTools.cpp in KX_blenderhook
- * Renders text into a (series of) polygon(s), using a texture font,
- * Each character consists of one polygon (one quad or two triangles)
- */
+/* Render Text renders text into a (series of) polygon, using a texture font,
+ * Each character consists of one polygon (one quad or two triangles) */
+
 void GPC_RenderTools::RenderText(
 	int mode,
 	RAS_IPolyMaterial* polymat,
-	float v1[3], float v2[3], float v3[3], float v4[3])
+	float v1[3], float v2[3], float v3[3], float v4[3], int glattrib)
 {
 	STR_String mytext = ((CValue*)m_clientobject)->GetPropertyText("Text");
 	
 	const unsigned int flag = polymat->GetFlag();
 	struct MTFace* tface = 0;
-	unsigned int* col = 0;
+	unsigned int *col = 0;
 
 	if(flag & RAS_BLENDERMAT) {
 		KX_BlenderMaterial *bl_mat = static_cast<KX_BlenderMaterial*>(polymat);
@@ -259,110 +372,29 @@ void GPC_RenderTools::RenderText(
 		tface = blenderpoly->GetMTFace();
 		col = blenderpoly->GetMCol();
 	}
-		
-	BL_RenderText(mode, mytext, mytext.Length(), tface, col, v1, v2, v3, v4);
+	
+	GPU_render_text(tface, mode, mytext, mytext.Length(), col, v1, v2, v3, v4, glattrib);
 }
 
 
-
-/**
- * Copied from KX_BlenderGL.cpp in KX_blenderhook
- */
-void GPC_RenderTools::BL_RenderText(
-	int mode,
-	const char* textstr,
-	int textlen,
-	struct MTFace* tface,
-	unsigned int* col,
-	float v1[3],float v2[3],float v3[3],float v4[3])
+void GPC_RenderTools::PushMatrix()
 {
-	struct Image* ima;
-
-	if (mode & TF_BMFONT) {
-			//char string[MAX_PROPSTRING];
-//			float tmat[4][4];
-			int characters, index, character;
-			float centerx, centery, sizex, sizey, transx, transy, movex, movey, advance;
-			
-//			bProperty *prop;
-
-			// string = "Frank van Beek";
-
-			characters = textlen;
-
-			ima = (struct Image*) tface->tpage;
-			if (ima == NULL) {
-				characters = 0;
-			}
-
-			if(!col) glColor3f(1.0f, 1.0f, 1.0f);
-
-			glPushMatrix();
-			for (index = 0; index < characters; index++) {
-				// lets calculate offset stuff
-				character = textstr[index];
-				
-				// space starts at offset 1
-				// character = character - ' ' + 1;
-				
-				matrixGlyph((ImBuf *)ima->ibufs.first, character, & centerx, &centery, &sizex, &sizey, &transx, &transy, &movex, &movey, &advance);
-				
-				glBegin(GL_POLYGON);
-				// printf(" %c %f %f %f %f\n", character, tface->uv[0][0], tface->uv[0][1], );
-				// glTexCoord2f((tface->uv[0][0] - centerx) * sizex + transx, (tface->uv[0][1] - centery) * sizey + transy);
-				glTexCoord2f((tface->uv[0][0] - centerx) * sizex + transx, (tface->uv[0][1] - centery) * sizey + transy);
-
-				if(col) BL_spack(col[0]);
-				// glVertex3fv(v1);
-				glVertex3f(sizex * v1[0] + movex, sizey * v1[1] + movey, v1[2]);
-				
-				glTexCoord2f((tface->uv[1][0] - centerx) * sizex + transx, (tface->uv[1][1] - centery) * sizey + transy);
-				if(col) BL_spack(col[1]);
-				// glVertex3fv(v2);
-				glVertex3f(sizex * v2[0] + movex, sizey * v2[1] + movey, v2[2]);
-	
-				glTexCoord2f((tface->uv[2][0] - centerx) * sizex + transx, (tface->uv[2][1] - centery) * sizey + transy);
-				if(col) BL_spack(col[2]);
-				// glVertex3fv(v3);
-				glVertex3f(sizex * v3[0] + movex, sizey * v3[1] + movey, v3[2]);
-	
-				if(v4) {
-					// glTexCoord2f((tface->uv[3][0] - centerx) * sizex + transx, 1.0 - (1.0 - tface->uv[3][1]) * sizey - transy);
-					glTexCoord2f((tface->uv[3][0] - centerx) * sizex + transx, (tface->uv[3][1] - centery) * sizey + transy);
-					if(col) BL_spack(col[3]);
-					// glVertex3fv(v4);
-					glVertex3f(sizex * v4[0] + movex, sizey * v4[1] + movey, v4[2]);
-				}
-				glEnd();
-
-				glTranslatef(advance, 0.0, 0.0);
-			}
-			glPopMatrix();
-
-		}
+	glPushMatrix();
 }
 
-
-RAS_IPolyMaterial* GPC_RenderTools::CreateBlenderPolyMaterial(
-			const STR_String &texname,
-			bool ba,const STR_String& matname,int tile,int tilexrep,int tileyrep,int mode,bool transparant, bool zsort,
-			int lightlayer,bool bIsTriangle,void* clientobject,void* tface)
+void GPC_RenderTools::PopMatrix()
 {
-	assert(!"Deprecated");
-/*	return new GPC_PolygonMaterial(texname, ba,matname,tile,tilexrep,tileyrep,
-			mode,transparant,zsort,lightlayer,bIsTriangle,clientobject,tface);
-			*/
-	return NULL;
+	glPopMatrix();
 }
 
 
-int GPC_RenderTools::applyLights(int objectlayer)
+int GPC_RenderTools::applyLights(int objectlayer, const MT_Transform& viewmat)
 {
-// taken from blender source, incompatibility between Blender Object / GameObject	
-
-	int count;
+	// taken from blender source, incompatibility between Blender Object / GameObject	
+	float glviewmat[16];
+	unsigned int count;
 	float vec[4];
-	
+
 	vec[3]= 1.0;
 	
 	for(count=0; count<m_numgllights; count++)
@@ -371,23 +403,20 @@ int GPC_RenderTools::applyLights(int objectlayer)
 	//std::vector<struct	RAS_LightObject*> m_lights;
 	std::vector<struct	RAS_LightObject*>::iterator lit = m_lights.begin();
 
+	viewmat.getValue(glviewmat);
 	
+	glPushMatrix();
+	glLoadMatrixf(glviewmat);
 	for (lit = m_lights.begin(), count = 0; !(lit==m_lights.end()) && count < m_numgllights; ++lit)
 	{
 		RAS_LightObject* lightdata = (*lit);
 		if (lightdata->m_layer & objectlayer)
 		{
-
-			glPushMatrix();
-			glLoadMatrixf(m_viewmat);
-			
-			
 			vec[0] = (*(lightdata->m_worldmatrix))(0,3);
 			vec[1] = (*(lightdata->m_worldmatrix))(1,3);
 			vec[2] = (*(lightdata->m_worldmatrix))(2,3);
 			vec[3] = 1;
 
-
 			if(lightdata->m_type==RAS_LightObject::LIGHT_SUN) {
 				
 				vec[0] = (*(lightdata->m_worldmatrix))(0,2);
@@ -443,141 +472,16 @@ int GPC_RenderTools::applyLights(int objectlayer)
 			}
 			glLightfv((GLenum)(GL_LIGHT0+count), GL_SPECULAR, vec);
 			glEnable((GLenum)(GL_LIGHT0+count));
-			
-			count++;
 
-			glPopMatrix();
+			count++;
 		}
 	}
+	glPopMatrix();
 
 	return count;
 
 }
 
-void GPC_RenderTools::SetClientObject(void* obj)
-{
-	if (m_clientobject != obj)
-	{
-		if (obj == NULL || !((KX_GameObject*)obj)->IsNegativeScaling())
-		{
-			glFrontFace(GL_CCW);
-		} else 
-		{
-			glFrontFace(GL_CW);
-		}
-		m_clientobject = obj;
-		m_modified = true;
-	}
-}
-
-bool GPC_RenderTools::RayHit(KX_ClientObjectInfo* client, KX_RayCast* result, void * const data)
-{
-	double* const oglmatrix = (double* const) data;
-	MT_Point3 resultpoint(result->m_hitPoint);
-	MT_Vector3 resultnormal(result->m_hitNormal);
-	MT_Vector3 left(oglmatrix[0],oglmatrix[1],oglmatrix[2]);
-	MT_Vector3 dir = -(left.cross(resultnormal)).safe_normalized();
-	left = (dir.cross(resultnormal)).safe_normalized();
-	// for the up vector, we take the 'resultnormal' returned by the physics
-	
-	double maat[16]={
-			left[0],        left[1],        left[2], 0,
-				dir[0],         dir[1],         dir[2], 0,
-		resultnormal[0],resultnormal[1],resultnormal[2], 0,
-				0,              0,              0, 1};
-	glTranslated(resultpoint[0],resultpoint[1],resultpoint[2]);
-	//glMultMatrixd(oglmatrix);
-	glMultMatrixd(maat);
-	return true;
-}
-
-void GPC_RenderTools::applyTransform(RAS_IRasterizer* rasty,double* oglmatrix,int objectdrawmode )
-{
-	if (objectdrawmode & RAS_IPolyMaterial::BILLBOARD_SCREENALIGNED ||
-		objectdrawmode & RAS_IPolyMaterial::BILLBOARD_AXISALIGNED)
-	{
-		// rotate the billboard/halo
-		//page 360/361 3D Game Engine Design, David Eberly for a discussion
-		// on screen aligned and axis aligned billboards
-		// assumed is that the preprocessor transformed all billboard polygons
-		// so that their normal points into the positive x direction (1.0 , 0.0 , 0.0)
-		// when new parenting for objects is done, this rotation
-		// will be moved into the object
-		
-		MT_Point3 objpos (oglmatrix[12],oglmatrix[13],oglmatrix[14]);
-		MT_Point3 campos = rasty->GetCameraPosition();
-		MT_Vector3 dir = (campos - objpos).safe_normalized();
-		MT_Vector3 up(0,0,1.0);
-
-		KX_GameObject* gameobj = (KX_GameObject*) this->m_clientobject;
-		// get scaling of halo object
-		MT_Vector3  size = gameobj->GetSGNode()->GetLocalScale();
-		
-		bool screenaligned = (objectdrawmode & RAS_IPolyMaterial::BILLBOARD_SCREENALIGNED)!=0;//false; //either screen or axisaligned
-		if (screenaligned)
-		{
-			up = (up - up.dot(dir) * dir).safe_normalized();
-		} else
-		{
-			dir = (dir - up.dot(dir)*up).safe_normalized();
-		}
-		
-		MT_Vector3 left  = dir.normalized();
-		dir = (left.cross(up)).normalized();
-
-		// we have calculated the row vectors, now we keep
-		// local scaling into account:
-
-		left *= size[0];
-		dir  *= size[1];
-		up   *= size[2];
-		double maat[16]={
-			left[0], left[1],left[2], 0,
-				dir[0], dir[1],dir[2],0,
-				up[0],up[1],up[2],0,
-				0,0,0,1};
-			glTranslated(objpos[0],objpos[1],objpos[2]);
-			glMultMatrixd(maat);
-			
-	} else
-	{
-		if (objectdrawmode & RAS_IPolyMaterial::SHADOW)
-		{
-			// shadow must be cast to the ground, physics system needed here!
-			MT_Point3 frompoint(oglmatrix[12],oglmatrix[13],oglmatrix[14]);
-			KX_GameObject *gameobj = (KX_GameObject*) this->m_clientobject;
-			MT_Vector3 direction = MT_Vector3(0,0,-1);
-
-			direction.normalize();
-			direction *= 100000;
-
-			MT_Point3 topoint = frompoint + direction;
-
-			KX_Scene* kxscene = (KX_Scene*) m_auxilaryClientInfo;
-			PHY_IPhysicsEnvironment* physics_environment = kxscene->GetPhysicsEnvironment();
-			KX_IPhysicsController* physics_controller = gameobj->GetPhysicsController();
-			
-			KX_GameObject *parent = gameobj->GetParent();
-			if (!physics_controller && parent)
-				physics_controller = parent->GetPhysicsController();
-			if (parent)
-				parent->Release();
-				
-			KX_RayCast::Callback<GPC_RenderTools> callback(this, physics_controller, oglmatrix);
-			if (!KX_RayCast::RayTest(physics_environment, frompoint, topoint, callback))
-			{
-				// couldn't find something to cast the shadow on...
-				glMultMatrixd(oglmatrix);
-			}
-		} else
-		{
-
-			// 'normal' object
-			glMultMatrixd(oglmatrix);
-		}
-	}
-}
-
 void GPC_RenderTools::MotionBlur(RAS_IRasterizer* rasterizer)
 {
 	int state = rasterizer->GetMotionBlurState();
@@ -608,7 +512,6 @@ void GPC_RenderTools::Update2DFilter(vector<STR_String>& propNames, void* gameOb
 
 void GPC_RenderTools::Render2DFilters(RAS_ICanvas* canvas)
 {
-	m_filtermanager.RenderFilters( canvas);
+	m_filtermanager.RenderFilters(canvas);
 }
 
-unsigned int GPC_RenderTools::m_numgllights;