added missing shaders

plant-eyes/scripts/view.ss

@@ -17,7 +17,7 @@
 
 (define (ornament-colour) (vector 0.7 0.7 0.7))
 (define (pickup-colour) (vector 1 1 1))
-(define (earth-colour) (vector 0.1 0.1 0.1))
+(define (earth-colour) (vector 0.2 0.15 0.1))
 (define (dust-colour) (vmul (vector 0.05 0.05 0.05) (* 2 (rndf))))
 (define (stones-colour) (vmul (vector 0.5 0.5 0.5) (* (crndf) 0.5)))
 (define (alive-colour) (vmul (vector 1 1 1) (+ 0.5 (* (rndf) 0.5))))
@@ -34,7 +34,7 @@
 (define fin-grow-prob 200)
 (define max-fins-per-twig 5)
 
-(define above-fog-col (vector 1 1 1))
+(define above-fog-col (vector 0.9 1 0.95))
 (define above-fog-strength 0.01)
 (define ground-change-duration 4)
  

plant-eyes/shaders/twig.frag.glsl

@@ -0,0 +1,58 @@
+varying vec3 N;
+varying vec3 L;
+varying vec3 V;
+varying vec2 T;
+uniform sampler2D Maps[3];
+uniform sampler2D NormalMap;
+uniform float Time;
+
+void main()
+{ 
+	vec3 bump = normalize(texture2D(NormalMap,T).xyz*2.0-1.0)-vec3(0,0,1);
+	vec3 n = normalize(N);
+	vec3 bn = normalize(N);//+bump*2.0);
+	vec3 l = normalize(L);
+	vec3 v = normalize(V);
+
+    float HighlightSize=0.1;
+    float ShadowSize=0.2;
+    float OutlineWidth=0.2;
+	
+	vec4 MidColour=gl_FrontMaterial.diffuse;
+	vec4 HighlightColour=MidColour*1.3;
+	vec4 ShadowColour=MidColour*0.6;
+    MidColour.a=1.0;
+	HighlightColour.a=1.0;
+	ShadowColour.a=1.0;
+	
+	vec4 texture;
+	float t = fract(Time*0.1)*3.0;
+	if (t<1.0) // mix bet 0 and 1
+	{
+		texture = mix(texture2D(Maps[0], T*10),texture2D(Maps[1], T*10),t);
+	}
+	else if (t<2.0 && t>1.0) // mix bet 1 and 2
+	{
+		texture = mix(texture2D(Maps[1], T*10),texture2D(Maps[2], T*10),t-1.0);
+	}
+	else // mix bet 2 and 0
+	{
+		texture = mix(texture2D(Maps[2], T*10),texture2D(Maps[0], T*10),t-2.0);
+	}
+	
+    float lambert = dot(l,bn);
+    vec4 colour = MidColour;
+    if (lambert > 1.0-HighlightSize) colour = HighlightColour;
+    if (lambert < ShadowSize) colour = ShadowColour;
+    
+	if (dot(n,v) < OutlineWidth) colour = vec4(0,0,0,1);
+    
+	
+	if (dot(n,v) < 0.0) colour = MidColour*texture*0.5;
+
+	// add linear fog
+	//float fog_factor = clamp((gl_Fog.end - gl_FogFragCoord) * gl_Fog.scale, 0.0, 1.0);
+	//gl_FragColor = mix(gl_Fog.color, colour, fog_factor);
+	gl_FragColor = colour;
+
+}

plant-eyes/shaders/twig.frag.glsl_old

@@ -0,0 +1,36 @@
+varying vec3 N;
+varying vec3 L;
+varying vec3 V;
+varying vec2 T;
+uniform sampler2D BaseMap;
+uniform sampler2D AltMap;
+uniform sampler2D NormalMap;
+
+void main()
+{ 
+	vec3 bump = normalize(texture2D(NormalMap,T).xyz*2.0-1.0)-vec3(0,0,1);
+	vec3 n = normalize(N)//+bump*5.0);
+	vec3 l = normalize(L);
+	vec3 v = normalize(V);
+
+    float HighlightSize=0.1;
+    float ShadowSize=0.2;
+    float OutlineWidth=0.2;
+	
+	vec4 MidColour=gl_FrontMaterial.diffuse;
+	vec4 HighlightColour=MidColour*2.0;
+	vec4 ShadowColour=MidColour*0.5;
+	HighlightColour.a=1.0;
+	ShadowColour.a=1.0;
+	
+    float lambert = dot(l,n);
+    vec4 colour = vec4(MidColour.xyz*lambert,1);
+    if (lambert > 1.0-HighlightSize) colour = HighlightColour;
+    if (lambert < ShadowSize) colour = ShadowColour;
+    if (dot(n,v) < OutlineWidth) colour = vec4(0,0,0,1);
+    if (dot(n,v) < 0.0) colour = MidColour;//*texture2D(BaseMap, T);
+
+	colour = mix(colour+texture2D(AltMap, T*10.0),colour,smoothstep(4.0,8.0,length(V)));
+	colour.a *= smoothstep(2.0,6.0,length(V));
+	gl_FragColor = colour;
+}

plant-eyes/shaders/twig.vert.glsl

@@ -0,0 +1,18 @@
+// Copyright (C) 2007 Dave Griffiths
+// Licence: GPLv2 (see COPYING)
+varying vec3 N;
+varying vec3 P;
+varying vec3 V;
+varying vec3 L;
+varying vec2 T;
+
+void main()
+{    
+    N = normalize(gl_NormalMatrix*gl_Normal);
+    P = gl_Vertex.xyz;
+    V = -vec3(gl_ModelViewMatrix*gl_Vertex);
+	vec4 LightPos = gl_LightSource[1].position;
+	L = vec3((LightPos-gl_Vertex));
+	T = gl_MultiTexCoord0.xy;
+    gl_Position = ftransform();
+}

plant-eyes/shaders/twig.vert.glsl_old

@@ -0,0 +1,16 @@
+varying vec3 N;
+varying vec3 P;
+varying vec3 V;
+varying vec3 L;
+varying vec2 T;
+
+void main()
+{    
+    N = normalize(gl_NormalMatrix*gl_Normal);
+    P = gl_Vertex.xyz;
+    V = -vec3(gl_ModelViewMatrix*gl_Vertex);
+	vec4 LightPos = gl_LightSource[1].position;
+	L = vec3(gl_ModelViewMatrix*(LightPos-gl_Vertex));
+	T = gl_MultiTexCoord0.xy;
+    gl_Position = ftransform();
+}