add initial examples, replacing the 'Demos/Demos3'. Will make it work cross-platform, OpenGL3/OpenGL2 and add more examples to it.

examples/OpenGLWindow/Shaders/createShadowMapInstancingPS.glsl

@@ -0,0 +1,10 @@
+#version 330
+precision highp float;
+
+
+layout(location = 0) out float fragmentdepth;
+
+void main(void)
+{
+	fragmentdepth = gl_FragCoord.z;
+}

examples/OpenGLWindow/Shaders/createShadowMapInstancingPS.h

@@ -0,0 +1,10 @@
+//this file is autogenerated using stringify.bat (premake --stringify) in the build folder of this project
+static const char* createShadowMapInstancingFragmentShader= \
+"#version 330\n"
+"precision highp float;\n"
+"layout(location = 0) out float fragmentdepth;\n"
+"void main(void)\n"
+"{\n"
+"	fragmentdepth = gl_FragCoord.z;\n"
+"}\n"
+;

examples/OpenGLWindow/Shaders/createShadowMapInstancingVS.glsl

@@ -0,0 +1,55 @@
+#version 330
+precision highp float;
+
+
+layout (location = 0) in vec4 position;
+layout (location = 1) in vec4 instance_position;
+layout (location = 2) in vec4 instance_quaternion;
+layout (location = 3) in vec2 uvcoords;
+layout (location = 4) in vec3 vertexnormal;
+layout (location = 5) in vec4 instance_color;
+layout (location = 6) in vec3 instance_scale;
+
+
+uniform mat4 depthMVP;
+
+
+vec4 quatMul ( in vec4 q1, in vec4 q2 )
+{
+    vec3  im = q1.w * q2.xyz + q1.xyz * q2.w + cross ( q1.xyz, q2.xyz );
+    vec4  dt = q1 * q2;
+    float re = dot ( dt, vec4 ( -1.0, -1.0, -1.0, 1.0 ) );
+    return vec4 ( im, re );
+}
+
+vec4 quatFromAxisAngle(vec4 axis, in float angle)
+{
+    float cah = cos(angle*0.5);
+    float sah = sin(angle*0.5);
+	float d = inversesqrt(dot(axis,axis));
+	vec4 q = vec4(axis.x*sah*d,axis.y*sah*d,axis.z*sah*d,cah);
+	return q;
+}
+//
+// vector rotation via quaternion
+//
+vec4 quatRotate3 ( in vec3 p, in vec4 q )
+{
+    vec4 temp = quatMul ( q, vec4 ( p, 0.0 ) );
+    return quatMul ( temp, vec4 ( -q.x, -q.y, -q.z, q.w ) );
+}
+vec4 quatRotate ( in vec4 p, in vec4 q )
+{
+    vec4 temp = quatMul ( q, p );
+    return quatMul ( temp, vec4 ( -q.x, -q.y, -q.z, q.w ) );
+}
+
+
+void main(void)
+{
+	vec4 q = instance_quaternion;
+	vec4 localcoord = quatRotate3( position.xyz*instance_scale,q);
+	vec4 vertexPos = depthMVP * vec4( (instance_position+localcoord).xyz,1);
+	gl_Position = vertexPos;
+}
+

examples/OpenGLWindow/Shaders/createShadowMapInstancingVS.h

@@ -0,0 +1,48 @@
+//this file is autogenerated using stringify.bat (premake --stringify) in the build folder of this project
+static const char* createShadowMapInstancingVertexShader= \
+"#version 330\n"
+"precision highp float;\n"
+"layout (location = 0) in vec4 position;\n"
+"layout (location = 1) in vec4 instance_position;\n"
+"layout (location = 2) in vec4 instance_quaternion;\n"
+"layout (location = 3) in vec2 uvcoords;\n"
+"layout (location = 4) in vec3 vertexnormal;\n"
+"layout (location = 5) in vec4 instance_color;\n"
+"layout (location = 6) in vec3 instance_scale;\n"
+"uniform mat4 depthMVP;\n"
+"vec4 quatMul ( in vec4 q1, in vec4 q2 )\n"
+"{\n"
+"    vec3  im = q1.w * q2.xyz + q1.xyz * q2.w + cross ( q1.xyz, q2.xyz );\n"
+"    vec4  dt = q1 * q2;\n"
+"    float re = dot ( dt, vec4 ( -1.0, -1.0, -1.0, 1.0 ) );\n"
+"    return vec4 ( im, re );\n"
+"}\n"
+"vec4 quatFromAxisAngle(vec4 axis, in float angle)\n"
+"{\n"
+"    float cah = cos(angle*0.5);\n"
+"    float sah = sin(angle*0.5);\n"
+"	float d = inversesqrt(dot(axis,axis));\n"
+"	vec4 q = vec4(axis.x*sah*d,axis.y*sah*d,axis.z*sah*d,cah);\n"
+"	return q;\n"
+"}\n"
+"//\n"
+"// vector rotation via quaternion\n"
+"//\n"
+"vec4 quatRotate3 ( in vec3 p, in vec4 q )\n"
+"{\n"
+"    vec4 temp = quatMul ( q, vec4 ( p, 0.0 ) );\n"
+"    return quatMul ( temp, vec4 ( -q.x, -q.y, -q.z, q.w ) );\n"
+"}\n"
+"vec4 quatRotate ( in vec4 p, in vec4 q )\n"
+"{\n"
+"    vec4 temp = quatMul ( q, p );\n"
+"    return quatMul ( temp, vec4 ( -q.x, -q.y, -q.z, q.w ) );\n"
+"}\n"
+"void main(void)\n"
+"{\n"
+"	vec4 q = instance_quaternion;\n"
+"	vec4 localcoord = quatRotate3( position.xyz*instance_scale,q);\n"
+"	vec4 vertexPos = depthMVP * vec4( (instance_position+localcoord).xyz,1);\n"
+"	gl_Position = vertexPos;\n"
+"}\n"
+;

examples/OpenGLWindow/Shaders/instancingPS.glsl

@@ -0,0 +1,36 @@
+#version 330
+precision highp float;
+
+in Fragment
+{
+     vec4 color;
+} fragment;
+
+in Vert
+{
+	vec2 texcoord;
+} vert;
+
+uniform sampler2D Diffuse;
+in vec3 lightDir,normal,ambient;
+out vec4 color;
+
+void main_textured(void)
+{
+   color  = vec4(0.1,0.2,0.3,0.3);
+}
+
+void main(void)
+{
+    vec4 texel = fragment.color*texture(Diffuse,vert.texcoord);//fragment.color;
+	vec3 ct,cf;
+	float intensity,at,af;
+	intensity = max(dot(lightDir,normalize(normal)),0);
+	cf = intensity*vec3(1.0,1.0,1.0)+ambient;
+	af = 1.0;
+		
+	ct = texel.rgb;
+	at = texel.a;
+		
+	color  = vec4(ct * cf, at * af);	
+}

examples/OpenGLWindow/Shaders/instancingPS.h

@@ -0,0 +1,34 @@
+//this file is autogenerated using stringify.bat (premake --stringify) in the build folder of this project
+static const char* instancingFragmentShader= \
+"#version 330\n"
+"precision highp float;\n"
+"in Fragment\n"
+"{\n"
+"     vec4 color;\n"
+"} fragment;\n"
+"in Vert\n"
+"{\n"
+"	vec2 texcoord;\n"
+"} vert;\n"
+"uniform sampler2D Diffuse;\n"
+"in vec3 lightDir,normal,ambient;\n"
+"out vec4 color;\n"
+"void main_textured(void)\n"
+"{\n"
+"   color  = vec4(0.1,0.2,0.3,0.3);\n"
+"}\n"
+"void main(void)\n"
+"{\n"
+"    vec4 texel = fragment.color*texture(Diffuse,vert.texcoord);//fragment.color;\n"
+"	vec3 ct,cf;\n"
+"	float intensity,at,af;\n"
+"	intensity = max(dot(lightDir,normalize(normal)),0);\n"
+"	cf = intensity*vec3(1.0,1.0,1.0)+ambient;\n"
+"	af = 1.0;\n"
+"		\n"
+"	ct = texel.rgb;\n"
+"	at = texel.a;\n"
+"		\n"
+"	color  = vec4(ct * cf, at * af);	\n"
+"}\n"
+;

examples/OpenGLWindow/Shaders/instancingVS.glsl

@@ -0,0 +1,82 @@
+#version 330
+precision highp float;
+
+
+layout (location = 0) in vec4 position;
+layout (location = 1) in vec4 instance_position;
+layout (location = 2) in vec4 instance_quaternion;
+layout (location = 3) in vec2 uvcoords;
+layout (location = 4) in vec3 vertexnormal;
+layout (location = 5) in vec4 instance_color;
+layout (location = 6) in vec3 instance_scale;
+
+
+uniform mat4 ModelViewMatrix;
+uniform mat4 ProjectionMatrix;
+
+out Fragment
+{
+     vec4 color;
+} fragment;
+
+out Vert
+{
+	vec2 texcoord;
+} vert;
+
+
+vec4 quatMul ( in vec4 q1, in vec4 q2 )
+{
+    vec3  im = q1.w * q2.xyz + q1.xyz * q2.w + cross ( q1.xyz, q2.xyz );
+    vec4  dt = q1 * q2;
+    float re = dot ( dt, vec4 ( -1.0, -1.0, -1.0, 1.0 ) );
+    return vec4 ( im, re );
+}
+
+vec4 quatFromAxisAngle(vec4 axis, in float angle)
+{
+    float cah = cos(angle*0.5);
+    float sah = sin(angle*0.5);
+	float d = inversesqrt(dot(axis,axis));
+	vec4 q = vec4(axis.x*sah*d,axis.y*sah*d,axis.z*sah*d,cah);
+	return q;
+}
+//
+// vector rotation via quaternion
+//
+vec4 quatRotate3 ( in vec3 p, in vec4 q )
+{
+    vec4 temp = quatMul ( q, vec4 ( p, 0.0 ) );
+    return quatMul ( temp, vec4 ( -q.x, -q.y, -q.z, q.w ) );
+}
+vec4 quatRotate ( in vec4 p, in vec4 q )
+{
+    vec4 temp = quatMul ( q, p );
+    return quatMul ( temp, vec4 ( -q.x, -q.y, -q.z, q.w ) );
+}
+
+out vec3 lightDir,normal,ambient;
+
+void main(void)
+{
+	vec4 q = instance_quaternion;
+	ambient = vec3(0.3,.3,0.3);
+		
+		
+	vec4 local_normal = (quatRotate3( vertexnormal,q));
+	vec3 light_pos = vec3(-0.3,0.1,0.1);
+	normal = local_normal.xyz;//normalize(ModelViewMatrix * local_normal).xyz;
+
+	lightDir = normalize(light_pos);//gl_LightSource[0].position.xyz));
+//	lightDir = normalize(vec3(gl_LightSource[0].position));
+		
+	vec4 axis = vec4(1,1,1,0);
+	vec4 localcoord = quatRotate3( position.xyz*instance_scale,q);
+	vec4 vertexPos = ProjectionMatrix * ModelViewMatrix *(instance_position+localcoord);
+
+	gl_Position = vertexPos;
+	
+	fragment.color = instance_color;
+	vert.texcoord = uvcoords;
+}
+

examples/OpenGLWindow/Shaders/instancingVS.h

@@ -0,0 +1,71 @@
+//this file is autogenerated using stringify.bat (premake --stringify) in the build folder of this project
+static const char* instancingVertexShader= \
+"#version 330\n"
+"precision highp float;\n"
+"layout (location = 0) in vec4 position;\n"
+"layout (location = 1) in vec4 instance_position;\n"
+"layout (location = 2) in vec4 instance_quaternion;\n"
+"layout (location = 3) in vec2 uvcoords;\n"
+"layout (location = 4) in vec3 vertexnormal;\n"
+"layout (location = 5) in vec4 instance_color;\n"
+"layout (location = 6) in vec3 instance_scale;\n"
+"uniform mat4 ModelViewMatrix;\n"
+"uniform mat4 ProjectionMatrix;\n"
+"out Fragment\n"
+"{\n"
+"     vec4 color;\n"
+"} fragment;\n"
+"out Vert\n"
+"{\n"
+"	vec2 texcoord;\n"
+"} vert;\n"
+"vec4 quatMul ( in vec4 q1, in vec4 q2 )\n"
+"{\n"
+"    vec3  im = q1.w * q2.xyz + q1.xyz * q2.w + cross ( q1.xyz, q2.xyz );\n"
+"    vec4  dt = q1 * q2;\n"
+"    float re = dot ( dt, vec4 ( -1.0, -1.0, -1.0, 1.0 ) );\n"
+"    return vec4 ( im, re );\n"
+"}\n"
+"vec4 quatFromAxisAngle(vec4 axis, in float angle)\n"
+"{\n"
+"    float cah = cos(angle*0.5);\n"
+"    float sah = sin(angle*0.5);\n"
+"	float d = inversesqrt(dot(axis,axis));\n"
+"	vec4 q = vec4(axis.x*sah*d,axis.y*sah*d,axis.z*sah*d,cah);\n"
+"	return q;\n"
+"}\n"
+"//\n"
+"// vector rotation via quaternion\n"
+"//\n"
+"vec4 quatRotate3 ( in vec3 p, in vec4 q )\n"
+"{\n"
+"    vec4 temp = quatMul ( q, vec4 ( p, 0.0 ) );\n"
+"    return quatMul ( temp, vec4 ( -q.x, -q.y, -q.z, q.w ) );\n"
+"}\n"
+"vec4 quatRotate ( in vec4 p, in vec4 q )\n"
+"{\n"
+"    vec4 temp = quatMul ( q, p );\n"
+"    return quatMul ( temp, vec4 ( -q.x, -q.y, -q.z, q.w ) );\n"
+"}\n"
+"out vec3 lightDir,normal,ambient;\n"
+"void main(void)\n"
+"{\n"
+"	vec4 q = instance_quaternion;\n"
+"	ambient = vec3(0.3,.3,0.3);\n"
+"		\n"
+"		\n"
+"	vec4 local_normal = (quatRotate3( vertexnormal,q));\n"
+"	vec3 light_pos = vec3(-0.3,0.1,0.1);\n"
+"	normal = local_normal.xyz;//normalize(ModelViewMatrix * local_normal).xyz;\n"
+"	lightDir = normalize(light_pos);//gl_LightSource[0].position.xyz));\n"
+"//	lightDir = normalize(vec3(gl_LightSource[0].position));\n"
+"		\n"
+"	vec4 axis = vec4(1,1,1,0);\n"
+"	vec4 localcoord = quatRotate3( position.xyz*instance_scale,q);\n"
+"	vec4 vertexPos = ProjectionMatrix * ModelViewMatrix *(instance_position+localcoord);\n"
+"	gl_Position = vertexPos;\n"
+"	\n"
+"	fragment.color = instance_color;\n"
+"	vert.texcoord = uvcoords;\n"
+"}\n"
+;

examples/OpenGLWindow/Shaders/linesPS.glsl

@@ -0,0 +1,10 @@
+
+#version 150
+
+in vec4 colourV;
+out vec4 fragColour;
+
+void main(void)
+{
+    fragColour = colourV;
+}

examples/OpenGLWindow/Shaders/linesPS.h

@@ -0,0 +1,10 @@
+//this file is autogenerated using stringify.bat (premake --stringify) in the build folder of this project
+static const char* linesFragmentShader= \
+"#version 150\n"
+"in vec4 colourV;\n"
+"out vec4 fragColour;\n"
+"void main(void)\n"
+"{\n"
+"    fragColour = colourV;\n"
+"}\n"
+;

examples/OpenGLWindow/Shaders/linesVS.glsl

@@ -0,0 +1,17 @@
+#version 150   
+
+uniform mat4 ModelViewMatrix;
+uniform mat4 ProjectionMatrix;
+uniform vec4 colour;
+
+in vec4 position;
+
+
+out vec4 colourV;
+
+void main (void)
+{
+    colourV = colour;
+		gl_Position = ProjectionMatrix * ModelViewMatrix * position;
+		
+}

examples/OpenGLWindow/Shaders/linesVS.h

@@ -0,0 +1,15 @@
+//this file is autogenerated using stringify.bat (premake --stringify) in the build folder of this project
+static const char* linesVertexShader= \
+"#version 150   \n"
+"uniform mat4 ModelViewMatrix;\n"
+"uniform mat4 ProjectionMatrix;\n"
+"uniform vec4 colour;\n"
+"in vec4 position;\n"
+"out vec4 colourV;\n"
+"void main (void)\n"
+"{\n"
+"    colourV = colour;\n"
+"		gl_Position = ProjectionMatrix * ModelViewMatrix * position;\n"
+"		\n"
+"}\n"
+;

examples/OpenGLWindow/Shaders/pointSpritePS.glsl

@@ -0,0 +1,37 @@
+
+#version 330
+precision highp float;
+
+in Fragment
+{
+     vec4 color;
+} fragment;
+
+
+in vec3 ambient;
+
+out vec4 color;
+
+void main_textured(void)
+{
+    color =  fragment.color;//texture2D(Diffuse,vert.texcoord);//fragment.color;
+}
+
+void main(void)
+{
+	vec3 N;
+	N.xy = gl_PointCoord.st*vec2(2.0, -2.0) + vec2(-1.0, 1.0);
+    float mag = dot(N.xy, N.xy);
+    if (mag > 1.0) discard; 
+    vec4 texel = fragment.color;//vec4(1,0,0,1);//fragment.color*texture(Diffuse,vert.texcoord);//fragment.color;
+	vec3 ct;
+	float at,af;
+	af = 1.0;
+		
+	ct = texel.rgb;
+	at = texel.a;
+		
+ vec3 lightDir= vec3(1,0,0);
+	float diffuse = max(0.0, dot(lightDir, N));
+	color  = vec4(ct * diffuse, at * af);	
+}

examples/OpenGLWindow/Shaders/pointSpritePS.h

@@ -0,0 +1,33 @@
+//this file is autogenerated using stringify.bat (premake --stringify) in the build folder of this project
+static const char* pointSpriteFragmentShader= \
+"#version 330\n"
+"precision highp float;\n"
+"in Fragment\n"
+"{\n"
+"     vec4 color;\n"
+"} fragment;\n"
+"in vec3 ambient;\n"
+"out vec4 color;\n"
+"void main_textured(void)\n"
+"{\n"
+"    color =  fragment.color;//texture2D(Diffuse,vert.texcoord);//fragment.color;\n"
+"}\n"
+"void main(void)\n"
+"{\n"
+"	vec3 N;\n"
+"	N.xy = gl_PointCoord.st*vec2(2.0, -2.0) + vec2(-1.0, 1.0);\n"
+"    float mag = dot(N.xy, N.xy);\n"
+"    if (mag > 1.0) discard; \n"
+"    vec4 texel = fragment.color;//vec4(1,0,0,1);//fragment.color*texture(Diffuse,vert.texcoord);//fragment.color;\n"
+"	vec3 ct;\n"
+"	float at,af;\n"
+"	af = 1.0;\n"
+"		\n"
+"	ct = texel.rgb;\n"
+"	at = texel.a;\n"
+"		\n"
+" vec3 lightDir= vec3(1,0,0);\n"
+"	float diffuse = max(0.0, dot(lightDir, N));\n"
+"	color  = vec4(ct * diffuse, at * af);	\n"
+"}\n"
+;

examples/OpenGLWindow/Shaders/pointSpriteVS.glsl

@@ -0,0 +1,46 @@
+#version 330
+precision highp float;
+
+
+
+layout (location = 0) in vec4 position;
+layout (location = 1) in vec4 instance_position;
+layout (location = 3) in vec2 uvcoords;
+layout (location = 4) in vec3 vertexnormal;
+layout (location = 5) in vec4 instance_color;
+layout (location = 6) in vec3 instance_scale;
+
+
+uniform float screenWidth = 700.f;
+uniform mat4 ModelViewMatrix;
+uniform mat4 ProjectionMatrix;
+
+out Fragment
+{
+     vec4 color;
+} fragment;
+
+
+
+//
+// vector rotation via quaternion
+//
+
+out vec3 ambient;
+
+void main(void)
+{
+	ambient = vec3(0.3,.3,0.3);
+		
+		
+	vec4 axis = vec4(1,1,1,0);
+	vec4 vertexPos = ProjectionMatrix * ModelViewMatrix *(instance_position);
+	vec3 posEye = vec3(ModelViewMatrix * vec4(instance_position.xyz, 1.0));
+   float dist = length(posEye);
+	float pointRadius = 1.f;
+    gl_PointSize = instance_scale.x * pointRadius * (screenWidth / dist);
+
+	gl_Position = vertexPos;
+	
+	fragment.color = instance_color;
+}

examples/OpenGLWindow/Shaders/pointSpriteVS.h

@@ -0,0 +1,37 @@
+//this file is autogenerated using stringify.bat (premake --stringify) in the build folder of this project
+static const char* pointSpriteVertexShader= \
+"#version 330\n"
+"precision highp float;\n"
+"layout (location = 0) in vec4 position;\n"
+"layout (location = 1) in vec4 instance_position;\n"
+"layout (location = 3) in vec2 uvcoords;\n"
+"layout (location = 4) in vec3 vertexnormal;\n"
+"layout (location = 5) in vec4 instance_color;\n"
+"layout (location = 6) in vec3 instance_scale;\n"
+"uniform float screenWidth = 700.f;\n"
+"uniform mat4 ModelViewMatrix;\n"
+"uniform mat4 ProjectionMatrix;\n"
+"out Fragment\n"
+"{\n"
+"     vec4 color;\n"
+"} fragment;\n"
+"//\n"
+"// vector rotation via quaternion\n"
+"//\n"
+"out vec3 ambient;\n"
+"void main(void)\n"
+"{\n"
+"	ambient = vec3(0.3,.3,0.3);\n"
+"		\n"
+"		\n"
+"	vec4 axis = vec4(1,1,1,0);\n"
+"	vec4 vertexPos = ProjectionMatrix * ModelViewMatrix *(instance_position);\n"
+"	vec3 posEye = vec3(ModelViewMatrix * vec4(instance_position.xyz, 1.0));\n"
+"   float dist = length(posEye);\n"
+"	float pointRadius = 1.f;\n"
+"    gl_PointSize = instance_scale.x * pointRadius * (screenWidth / dist);\n"
+"	gl_Position = vertexPos;\n"
+"	\n"
+"	fragment.color = instance_color;\n"
+"}\n"
+;

examples/OpenGLWindow/Shaders/useShadowMapInstancingPS.glsl

@@ -0,0 +1,56 @@
+#version 330 core
+//precision highp float;
+
+in Fragment
+{
+     vec4 color;
+} fragment;
+
+in Vert
+{
+	vec2 texcoord;
+} vert;
+
+uniform sampler2D Diffuse;
+uniform sampler2DShadow shadowMap;
+
+in vec3 lightDir,normal,ambient;
+in vec4 ShadowCoord;
+
+out vec4 color;
+
+
+
+void main(void)
+{
+    vec4 texel = fragment.color*texture(Diffuse,vert.texcoord);//fragment.color;
+	vec3 ct,cf;
+	float intensity,at,af;
+	
+	intensity = clamp( dot( normalize(normal),lightDir ), 0,1 );
+	
+	cf = ambient;
+	af = 1.0;
+		
+	ct = texel.rgb;
+	at = texel.a;
+		
+	//float bias = 0.005f;
+	
+	float bias = 0.0001*tan(acos(intensity));
+	bias = clamp(bias, 0,0.01);
+
+
+	float visibility = texture(shadowMap, vec3(ShadowCoord.xy,(ShadowCoord.z-bias)/ShadowCoord.w));
+	
+	intensity*=2;
+	if (intensity>1)
+		intensity=1.f;
+	
+	visibility *= intensity;
+	
+	if (visibility<0.6)
+		visibility=0.6f;
+		
+	color  = vec4(ct * visibility, fragment.color.w);
+}

examples/OpenGLWindow/Shaders/useShadowMapInstancingPS.h

@@ -0,0 +1,49 @@
+//this file is autogenerated using stringify.bat (premake --stringify) in the build folder of this project
+static const char* useShadowMapInstancingFragmentShader= \
+"#version 330 core\n"
+"//precision highp float;\n"
+"in Fragment\n"
+"{\n"
+"     vec4 color;\n"
+"} fragment;\n"
+"in Vert\n"
+"{\n"
+"	vec2 texcoord;\n"
+"} vert;\n"
+"uniform sampler2D Diffuse;\n"
+"uniform sampler2DShadow shadowMap;\n"
+"in vec3 lightDir,normal,ambient;\n"
+"in vec4 ShadowCoord;\n"
+"out vec4 color;\n"
+"void main(void)\n"
+"{\n"
+"    vec4 texel = fragment.color*texture(Diffuse,vert.texcoord);//fragment.color;\n"
+"	vec3 ct,cf;\n"
+"	float intensity,at,af;\n"
+"	\n"
+"	intensity = clamp( dot( normalize(normal),lightDir ), 0,1 );\n"
+"	\n"
+"	cf = ambient;\n"
+"	af = 1.0;\n"
+"		\n"
+"	ct = texel.rgb;\n"
+"	at = texel.a;\n"
+"		\n"
+"	//float bias = 0.005f;\n"
+"	\n"
+"	float bias = 0.0001*tan(acos(intensity));\n"
+"	bias = clamp(bias, 0,0.01);\n"
+"	float visibility = texture(shadowMap, vec3(ShadowCoord.xy,(ShadowCoord.z-bias)/ShadowCoord.w));\n"
+"	\n"
+"	intensity*=2;\n"
+"	if (intensity>1)\n"
+"		intensity=1.f;\n"
+"	\n"
+"	visibility *= intensity;\n"
+"	\n"
+"	if (visibility<0.6)\n"
+"		visibility=0.6f;\n"
+"		\n"
+"	color  = vec4(ct * visibility, fragment.color.w);\n"
+"}\n"
+;

examples/OpenGLWindow/Shaders/useShadowMapInstancingVS.glsl

@@ -0,0 +1,86 @@
+#version 330 
+precision highp float;
+
+
+layout (location = 0) in vec4 position;
+layout (location = 1) in vec4 instance_position;
+layout (location = 2) in vec4 instance_quaternion;
+layout (location = 3) in vec2 uvcoords;
+layout (location = 4) in vec3 vertexnormal;
+layout (location = 5) in vec4 instance_color;
+layout (location = 6) in vec3 instance_scale;
+
+
+uniform mat4 ModelViewMatrix;
+uniform mat4 ProjectionMatrix;
+uniform mat4 DepthBiasModelViewProjectionMatrix;
+uniform mat4 MVP;
+uniform vec3 lightDirIn;
+
+out vec4 ShadowCoord;
+
+out Fragment
+{
+     vec4 color;
+} fragment;
+
+out Vert
+{
+	vec2 texcoord;
+} vert;
+
+
+vec4 quatMul ( in vec4 q1, in vec4 q2 )
+{
+    vec3  im = q1.w * q2.xyz + q1.xyz * q2.w + cross ( q1.xyz, q2.xyz );
+    vec4  dt = q1 * q2;
+    float re = dot ( dt, vec4 ( -1.0, -1.0, -1.0, 1.0 ) );
+    return vec4 ( im, re );
+}
+
+vec4 quatFromAxisAngle(vec4 axis, in float angle)
+{
+    float cah = cos(angle*0.5);
+    float sah = sin(angle*0.5);
+	float d = inversesqrt(dot(axis,axis));
+	vec4 q = vec4(axis.x*sah*d,axis.y*sah*d,axis.z*sah*d,cah);
+	return q;
+}
+//
+// vector rotation via quaternion
+//
+vec4 quatRotate3 ( in vec3 p, in vec4 q )
+{
+    vec4 temp = quatMul ( q, vec4 ( p, 0.0 ) );
+    return quatMul ( temp, vec4 ( -q.x, -q.y, -q.z, q.w ) );
+}
+vec4 quatRotate ( in vec4 p, in vec4 q )
+{
+    vec4 temp = quatMul ( q, p );
+    return quatMul ( temp, vec4 ( -q.x, -q.y, -q.z, q.w ) );
+}
+
+out vec3 lightDir,normal,ambient;
+
+void main(void)
+{
+	vec4 q = instance_quaternion;
+	ambient = vec3(0.3,.3,0.3);
+			
+	vec4 worldNormal = (quatRotate3( vertexnormal,q));
+	
+	normal = normalize(worldNormal).xyz;
+
+	lightDir = lightDirIn;
+		
+	vec4 axis = vec4(1,1,1,0);
+	vec4 localcoord = quatRotate3( position.xyz*instance_scale,q);
+	vec4 vertexPos = MVP* vec4((instance_position+localcoord).xyz,1);
+
+	gl_Position = vertexPos;
+	ShadowCoord = DepthBiasModelViewProjectionMatrix * vec4((instance_position+localcoord).xyz,1);
+
+	fragment.color = instance_color;
+	vert.texcoord = uvcoords;
+}
+

examples/OpenGLWindow/Shaders/useShadowMapInstancingVS.h

@@ -0,0 +1,73 @@
+//this file is autogenerated using stringify.bat (premake --stringify) in the build folder of this project
+static const char* useShadowMapInstancingVertexShader= \
+"#version 330 \n"
+"precision highp float;\n"
+"layout (location = 0) in vec4 position;\n"
+"layout (location = 1) in vec4 instance_position;\n"
+"layout (location = 2) in vec4 instance_quaternion;\n"
+"layout (location = 3) in vec2 uvcoords;\n"
+"layout (location = 4) in vec3 vertexnormal;\n"
+"layout (location = 5) in vec4 instance_color;\n"
+"layout (location = 6) in vec3 instance_scale;\n"
+"uniform mat4 ModelViewMatrix;\n"
+"uniform mat4 ProjectionMatrix;\n"
+"uniform mat4 DepthBiasModelViewProjectionMatrix;\n"
+"uniform mat4 MVP;\n"
+"uniform vec3 lightDirIn;\n"
+"out vec4 ShadowCoord;\n"
+"out Fragment\n"
+"{\n"
+"     vec4 color;\n"
+"} fragment;\n"
+"out Vert\n"
+"{\n"
+"	vec2 texcoord;\n"
+"} vert;\n"
+"vec4 quatMul ( in vec4 q1, in vec4 q2 )\n"
+"{\n"
+"    vec3  im = q1.w * q2.xyz + q1.xyz * q2.w + cross ( q1.xyz, q2.xyz );\n"
+"    vec4  dt = q1 * q2;\n"
+"    float re = dot ( dt, vec4 ( -1.0, -1.0, -1.0, 1.0 ) );\n"
+"    return vec4 ( im, re );\n"
+"}\n"
+"vec4 quatFromAxisAngle(vec4 axis, in float angle)\n"
+"{\n"
+"    float cah = cos(angle*0.5);\n"
+"    float sah = sin(angle*0.5);\n"
+"	float d = inversesqrt(dot(axis,axis));\n"
+"	vec4 q = vec4(axis.x*sah*d,axis.y*sah*d,axis.z*sah*d,cah);\n"
+"	return q;\n"
+"}\n"
+"//\n"
+"// vector rotation via quaternion\n"
+"//\n"
+"vec4 quatRotate3 ( in vec3 p, in vec4 q )\n"
+"{\n"
+"    vec4 temp = quatMul ( q, vec4 ( p, 0.0 ) );\n"
+"    return quatMul ( temp, vec4 ( -q.x, -q.y, -q.z, q.w ) );\n"
+"}\n"
+"vec4 quatRotate ( in vec4 p, in vec4 q )\n"
+"{\n"
+"    vec4 temp = quatMul ( q, p );\n"
+"    return quatMul ( temp, vec4 ( -q.x, -q.y, -q.z, q.w ) );\n"
+"}\n"
+"out vec3 lightDir,normal,ambient;\n"
+"void main(void)\n"
+"{\n"
+"	vec4 q = instance_quaternion;\n"
+"	ambient = vec3(0.3,.3,0.3);\n"
+"			\n"
+"	vec4 worldNormal = (quatRotate3( vertexnormal,q));\n"
+"	\n"
+"	normal = normalize(worldNormal).xyz;\n"
+"	lightDir = lightDirIn;\n"
+"		\n"
+"	vec4 axis = vec4(1,1,1,0);\n"
+"	vec4 localcoord = quatRotate3( position.xyz*instance_scale,q);\n"
+"	vec4 vertexPos = MVP* vec4((instance_position+localcoord).xyz,1);\n"
+"	gl_Position = vertexPos;\n"
+"	ShadowCoord = DepthBiasModelViewProjectionMatrix * vec4((instance_position+localcoord).xyz,1);\n"
+"	fragment.color = instance_color;\n"
+"	vert.texcoord = uvcoords;\n"
+"}\n"
+;