move shaders to .glsl files and stringify to .h file.

add crude screenshot facility (using F1 key), it can also be used for debugging
start with shadows using shadowmap, not working yet
add experimental 'ignore' body index in raycast, using b3HitInfo.m_m_hitResult2

Demos3/GpuDemos/shadows/ShadowMapDemo.cpp

@@ -0,0 +1,62 @@
+#include "ShadowMapDemo.h"
+#include "ShadowMapDemoInternalData.h"
+#include "OpenGLWindow/GLInstancingRenderer.h"
+#include "OpenGLWindow/ShapeData.h"
+
+ShadowMapDemo::ShadowMapDemo()
+{
+	m_shadowData = new ShadowMapDemoInternalData;
+}
+
+ShadowMapDemo::~ShadowMapDemo()
+{
+	delete m_shadowData;
+}
+
+
+void    ShadowMapDemo::initPhysics(const ConstructionInfo& ci)
+{
+	m_shadowData->m_instancingRenderer = ci.m_instancingRenderer;
+
+	int sphereShape = registerGraphicsSphereShape(ci,0.1,false);
+	float pos[4]={0,3,0,0};
+	float orn[4]={0,0,0,1};
+	float color[4]={1,0,0,1};
+	float scaling[4]={1,1,1,1};
+
+	ci.m_instancingRenderer->registerGraphicsInstance(sphereShape,pos,orn,color,scaling);
+	
+
+	int strideInBytes = 9*sizeof(float);
+	int numVertices = sizeof(cube_vertices)/strideInBytes;
+	int numIndices = sizeof(cube_vertices)/sizeof(int);
+	//int shapeId = ci.m_instancingRenderer->registerShape(&cube_vertices[0],numVertices,cube_indices,numIndices);
+	int boxShape = ci.m_instancingRenderer->registerShape(&cube_vertices[0],numVertices,cube_indices,numIndices);
+	pos[1]=0.f;
+	scaling[0]=scaling[2]=10.f;
+	color[0]=1.f;
+	color[1]=1.f;
+	color[2]=1.f;
+	color[3]=1.f;
+	ci.m_instancingRenderer->registerGraphicsInstance(boxShape ,pos,orn,color,scaling);
+
+
+	m_shadowData->m_instancingRenderer->setCameraTargetPosition(pos);
+	m_shadowData->m_instancingRenderer->setCameraDistance(15);
+	ci.m_instancingRenderer->writeTransforms();
+}
+	
+void    ShadowMapDemo::exitPhysics()
+{
+}
+	
+void ShadowMapDemo::renderScene()
+{
+	m_shadowData->m_instancingRenderer->renderScene(B3_CREATE_SHADOWMAP_RENDERMODE);
+	//m_shadowData->m_instancingRenderer->renderScene();
+	m_shadowData->m_instancingRenderer->renderScene(B3_USE_SHADOWMAP_RENDERMODE);
+}
+	
+void ShadowMapDemo::clientMoveAndDisplay()
+{
+}

Demos3/GpuDemos/shadows/ShadowMapDemo.h

@@ -0,0 +1,36 @@
+#ifndef SHADOW_MAP_DEMO_H
+#define SHADOW_MAP_DEMO_H
+
+#include "../GpuDemo.h"
+
+class ShadowMapDemo : public GpuDemo
+{
+	struct ShadowMapDemoInternalData* m_shadowData;
+
+public:
+
+	ShadowMapDemo();
+	virtual ~ShadowMapDemo();
+
+	virtual const char* getName()
+	{
+		return "ShadowMapDemo";
+	}
+	
+	virtual void    initPhysics(const ConstructionInfo& ci);
+	
+	virtual void    exitPhysics();
+	
+	virtual void renderScene();
+	
+	virtual void clientMoveAndDisplay();
+
+	static GpuDemo* MyCreateFunc()
+	{
+		GpuDemo* demo = new ShadowMapDemo;
+		return demo;
+	}
+
+};
+
+#endif //SHADOW_MAP_DEMO_H

Demos3/GpuDemos/shadows/ShadowMapDemoInternalData.h

@@ -0,0 +1,11 @@
+#ifndef SHADOW_MAP_INTERNAL_DATA_H
+#define SHADOW_MAP_INTERNAL_DATA_H
+
+
+struct ShadowMapDemoInternalData
+{
+	  class GLInstancingRenderer*   m_instancingRenderer;
+};
+
+#endif //SHADOW_MAP_INTERNAL_DATA_H
+