3 files changed, 118 insertions, 0 deletions

diff --git a/matchblox/shaders/grayscale.frag b/matchblox/shaders/grayscale.frag
new file mode 100644
index 0000000..0f4ddaf
--- /dev/null
+++ b/matchblox/shaders/grayscale.frag
@@ -0,0 +1,44 @@
+uniform vec3 g_ConversionWeights;

+uniform sampler2D g_TexSampler;

+

+

+varying vec4 ambient, diffuse;

+varying vec3 normal, lightdir, halfvector;

+

+void main()

+{

+	float NdotL, NdotHV, gray;

+	vec3  n     = normalize(normal);

+	vec4  texcolor = texture2D(g_TexSampler, gl_TexCoord[0].st),

+	      fragcolor = ambient,

+	      color;

+	

+	//compute the dot pruduct of the normalized normal and light direction

+	NdotL = max(dot(n, lightdir), 0.0);

+	

+	if (NdotL > 0.0)

+	{

+		//add diffuse light component

+		fragcolor += diffuse * NdotL;

+		

+		//compute the dot product of the normal and half vector (of the lightdir and eye position)

+		NdotHV = max(dot(n, halfvector), 0.0);

+		

+		fragcolor += gl_FrontMaterial.specular * gl_LightSource[0].specular * 

+					 pow(NdotHV, gl_FrontMaterial.shininess);

+	}

+	

+	//modulate the fragment color with the texel color for the final color

+ 	color =  texcolor * fragcolor;

+	

+	//convert to grayscale using NTSC conversion weights 

+	//gray = dot(color.rgb, vec3(0.299, 0.587, 0.114));

+	gray = dot(color.rgb, g_ConversionWeights);

+	//gray = color.r * 0.299 + color.g * 0.587 + color.b * 0.114;

+

+	//copy grayscale to rgb components and use the alpha from the final color

+	gl_FragColor = vec4(gray, gray, gray, color.a);

+	

+	// convert grayscale to sepia

+    //gl_FragColor = vec4(gray * vec3(1.2, 1.0, 0.8), color.a);

+}
\ No newline at end of file
diff --git a/matchblox/shaders/grayscale.gdp b/matchblox/shaders/grayscale.gdp
new file mode 100644
index 0000000..e913f9a
--- /dev/null
+++ b/matchblox/shaders/grayscale.gdp
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes"?>

+<GLSLang>

+  <Metadata>

+    <Author Author="" />

+    <Email Email="" />

+    <Company Company="" />

+    <Shader Shader="" />

+    <ShaderDescription ShaderDescription="" />

+    <License License="" />

+    <Version Version="" />

+  </Metadata>

+  <VPCount numero="1">

+    <Filenames>

+      <Filename0 VertexProgram=".\grayscale.vert" />

+    </Filenames>

+  </VPCount>

+  <FPCount numero="1">

+    <Filenames>

+      <Filename0 FragmentProgram=".\grayscale.frag" />

+    </Filenames>

+  </FPCount>

+  <TexturesPlugins NumberOfPlugins="0" />

+  <TexturedUsed NumberUsedTU="1">

+    <TextureUnit0 Filename="..\models\wood1.bmp" FilenameX="" Filename_X="" FilenameY="" Filename_Y="" FilenameZ="" Filename_Z="" MinFilter="9729" MagFilter="9729" Target="3553" WrapS="10497" WrapT="10497" WrapR="10497" Custom="False" Width="0" Height="0" Deep="0" />

+  </TexturedUsed>

+  <UniformVariables NumberOfVariables="2">

+    <Uniform0 Type="1" Name="g_TexSampler" ArraySize="1" Widget="0" Min="0" Max="1" Step="0.001">

+      <Values Value0="0" />

+    </Uniform0>

+    <Uniform1 Type="7" Name="g_ConversionWeights" ArraySize="1" Widget="0" Min="0" Max="1" Step="0.001">

+      <Values Value0="0" Value1="0.587" Value2="0" />

+    </Uniform1>

+  </UniformVariables>

+  <FogParameters FogColorR="0" FogColorG="0" FogColorB="0" FogColorA="1" Density="1" Start="0" End="1" />

+  <VertexProcessor CullFace="True" PolygonMode="DummieField" PolygonModeBack="6914" PolygonModeFront="6914" LocalValue="1" TwoSidedValue="0" ColorControlValue="33273" />

+  <FragmentProcessor Shade="7425" AlphaTest="False" AlphaFunc="516" AlphaClamp="0.5" Blending="False" BlendFuncSRC="770" BlendFuncDST="771" BlendEquation="32774" DepthTest="True" DepthFunc="515" ClampNear="0" ClampFar="1" ClearColorR="0.5019608" ClearColorG="0.5019608" ClearColorB="0.5019608" ClearColorA="1" />

+  <MotionData Speed="0.05" Distance="4" Rotation="False" />

+  <BuiltInStates>

+    <ModelAmbient AmbientR="0.2" AmbientG="0.2" AmbientB="0.2" AmbientA="1" />

+    <FrontMaterial AmbR="0.8784314" AmbG="0.8784314" AmbB="0.8784314" AmbA="1" DifR="0.8000001" DifG="0.8000001" DifB="0.8000001" DifA="1" SpecR="1" SpecG="1" SpecB="1" SpecA="1" EmiR="0" EmiG="0" EmiB="0" EmiA="1" Shininess="0" />

+    <BackMaterial AmbR="0.2" AmbG="0.2" AmbB="0.2" AmbA="1" DifR="0.8000001" DifG="0.8000001" DifB="0.8000001" DifA="1" SpecR="0" SpecG="0" SpecB="0" SpecA="1" EmiR="0" EmiG="0" EmiB="0" EmiA="1" Shininess="0" />

+    <PointParameters Size="1" MinSize="0" MaxSize="1" Threshold="1" ConstantAttenuation="1" LinearAttenuation="0" QuadraticAttenuation="0" />

+    <Light0 Enabled="True" PosX="0" PosY="0" PosZ="1" PosW="0" AmbR="0" AmbG="0" AmbB="0" AmbA="1" DifR="1" DifG="1" DifB="1" DifA="1" SpecR="1" SpecG="1" SpecB="1" SpecA="1" SpotDirX="0" SpotDirY="0" SpotDirZ="-1" SpotExp="0" SpotCutoff="180" SpotConstant="1" SpotLinear="0" SpotQuadratic="0" />

+    <Light1 Enabled="False" PosX="0" PosY="0" PosZ="1" PosW="0" AmbR="0" AmbG="0" AmbB="0" AmbA="1" DifR="0" DifG="0" DifB="0" DifA="1" SpecR="0" SpecG="0" SpecB="0" SpecA="1" SpotDirX="0" SpotDirY="0" SpotDirZ="-1" SpotExp="0" SpotCutoff="180" SpotConstant="1" SpotLinear="0" SpotQuadratic="0" />

+    <Light2 Enabled="False" PosX="0" PosY="0" PosZ="1" PosW="0" AmbR="0" AmbG="0" AmbB="0" AmbA="1" DifR="0" DifG="0" DifB="0" DifA="1" SpecR="0" SpecG="0" SpecB="0" SpecA="1" SpotDirX="0" SpotDirY="0" SpotDirZ="-1" SpotExp="0" SpotCutoff="180" SpotConstant="1" SpotLinear="0" SpotQuadratic="0" />

+    <Light3 Enabled="False" PosX="0" PosY="0" PosZ="1" PosW="0" AmbR="0" AmbG="0" AmbB="0" AmbA="1" DifR="0" DifG="0" DifB="0" DifA="1" SpecR="0" SpecG="0" SpecB="0" SpecA="1" SpotDirX="0" SpotDirY="0" SpotDirZ="-1" SpotExp="0" SpotCutoff="180" SpotConstant="1" SpotLinear="0" SpotQuadratic="0" />

+    <Light4 Enabled="False" PosX="0" PosY="0" PosZ="1" PosW="0" AmbR="0" AmbG="0" AmbB="0" AmbA="1" DifR="0" DifG="0" DifB="0" DifA="1" SpecR="0" SpecG="0" SpecB="0" SpecA="1" SpotDirX="0" SpotDirY="0" SpotDirZ="-1" SpotExp="0" SpotCutoff="180" SpotConstant="1" SpotLinear="0" SpotQuadratic="0" />

+    <Light5 Enabled="False" PosX="0" PosY="0" PosZ="1" PosW="0" AmbR="0" AmbG="0" AmbB="0" AmbA="1" DifR="0" DifG="0" DifB="0" DifA="1" SpecR="0" SpecG="0" SpecB="0" SpecA="1" SpotDirX="0" SpotDirY="0" SpotDirZ="-1" SpotExp="0" SpotCutoff="180" SpotConstant="1" SpotLinear="0" SpotQuadratic="0" />

+    <Light6 Enabled="False" PosX="0" PosY="0" PosZ="1" PosW="0" AmbR="0" AmbG="0" AmbB="0" AmbA="1" DifR="0" DifG="0" DifB="0" DifA="1" SpecR="0" SpecG="0" SpecB="0" SpecA="1" SpotDirX="0" SpotDirY="0" SpotDirZ="-1" SpotExp="0" SpotCutoff="180" SpotConstant="1" SpotLinear="0" SpotQuadratic="0" />

+    <Light7 Enabled="False" PosX="0" PosY="0" PosZ="1" PosW="0" AmbR="0" AmbG="0" AmbB="0" AmbA="1" DifR="0" DifG="0" DifB="0" DifA="1" SpecR="0" SpecG="0" SpecB="0" SpecA="1" SpotDirX="0" SpotDirY="0" SpotDirZ="-1" SpotExp="0" SpotCutoff="180" SpotConstant="1" SpotLinear="0" SpotQuadratic="0" />

+  </BuiltInStates>

+  <BackGround>

+    <BackGroundMode Mode="0" />

+  </BackGround>

+</GLSLang>
\ No newline at end of file
diff --git a/matchblox/shaders/grayscale.vert b/matchblox/shaders/grayscale.vert
new file mode 100644
index 0000000..af155c8
--- /dev/null
+++ b/matchblox/shaders/grayscale.vert
@@ -0,0 +1,19 @@
+varying vec4 ambient, diffuse;

+varying vec3 normal, lightdir, halfvector;

+

+void main()

+{

+	//transform the normal

+	normal = gl_NormalMatrix * gl_Normal;

+

+	//determine the light direction

+	lightdir   = normalize(gl_LightSource[0].position.xyz);

+	halfvector = normalize(gl_LightSource[0].halfVector.xyz);

+	

+	//compute diffuse and ambient terms

+	diffuse = gl_FrontMaterial.diffuse * gl_LightSource[0].diffuse;

+	ambient = gl_FrontMaterial.ambient * (gl_LightSource[0].ambient + gl_LightModel.ambient);

+	

+	gl_Position = ftransform();

+	gl_TexCoord[0] = gl_MultiTexCoord0;

+}