9 files changed, 177 insertions, 31 deletions
diff --git a/shaders/anholt/12.shader_test b/shaders/anholt/12.shader_test
new file mode 100644
index 0000000..73d9ec8
--- /dev/null
+++ b/shaders/anholt/12.shader_test
@@ -0,0 +1,23 @@
+[require]
+GLSL >= 1.10
+
+[fragment shader]
+uniform sampler2D shadow_sampler;
+varying vec2 texcoord;
+
+void main()
+{
+	gl_FragColor = texture2D(shadow_sampler, texcoord);
+}
+
+[vertex shader]
+#version 120
+
+varying vec2 texcoord;
+
+void main()
+{
+	gl_Position = gl_Vertex;
+	texcoord = (gl_Vertex.xy + vec2(1, 1)) / 2.0;
+}
+
diff --git a/shaders/anholt/15.shader_test b/shaders/anholt/15.shader_test
new file mode 100644
index 0000000..30ba541
--- /dev/null
+++ b/shaders/anholt/15.shader_test
@@ -0,0 +1,17 @@
+[require]
+GLSL >= 1.10
+
+[fragment shader]
+uniform vec4 color;
+void main()
+{
+   gl_FragColor = color;
+}
+
+[vertex shader]
+attribute vec4 position;
+void main()
+{
+   gl_Position = position;
+}
+
diff --git a/shaders/anholt/18.shader_test b/shaders/anholt/18.shader_test
new file mode 100644
index 0000000..e59381e
--- /dev/null
+++ b/shaders/anholt/18.shader_test
@@ -0,0 +1,24 @@
+[require]
+GLSL >= 1.10
+
+[fragment shader]
+#version 130
+uniform ivec4 color;
+out ivec4 out_color;
+
+void main()
+{
+   out_color = color;
+}
+
+[vertex shader]
+#version 130
+in vec4 position;
+void main()
+{
+   gl_Position = position;
+}
+
+event = 0x0001
+event = 0x0001
+300 frames in 5.40 secs: 55.6 fps
diff --git a/shaders/anholt/glass.frag b/shaders/anholt/3.shader_test
index 88c29b8..0a0c5a1 100644
--- a/shaders/anholt/glass.frag
+++ b/shaders/anholt/3.shader_test
@@ -1,3 +1,7 @@
+[require]
+GLSL >= 1.10
+
+[fragment shader]
 #version 120
 
 #define I965_HACK 1
@@ -111,3 +115,37 @@ void main()
 	gl_FragColor = texture2D(normal_sampler, texcoord);
 #endif
 }
+
+[vertex shader]
+#version 120
+
+uniform vec3 light_eye;
+varying vec2 texcoord;
+varying vec3 light_surf;
+varying vec3 eye_surf;
+varying vec3 tangent_surf;
+varying vec4 shadow_coords;
+uniform mat4 mvp, mv, light_mvp;
+
+void main()
+{
+	mat3 mv3 = mat3(mv);
+	vec3 t = (mv3 * gl_MultiTexCoord1.xyz);
+	vec3 n = (mv3 * gl_Normal);
+
+	gl_Position = mvp * gl_Vertex;
+
+	mat3 tbn = mat3(t,
+			cross(n, t),
+			n
+			);
+
+	vec3 vertex_eye = vec3(mv * gl_Vertex);
+	shadow_coords = light_mvp * gl_Vertex;
+
+	texcoord = gl_MultiTexCoord0.xy;
+	light_surf = normalize((light_eye - vertex_eye) * tbn);
+	eye_surf = normalize((-vertex_eye) * tbn);
+	tangent_surf = gl_MultiTexCoord1.xyz * tbn;
+}
+
diff --git a/shaders/anholt/6.shader_test b/shaders/anholt/6.shader_test
new file mode 100644
index 0000000..9e7084b
--- /dev/null
+++ b/shaders/anholt/6.shader_test
@@ -0,0 +1,59 @@
+[require]
+GLSL >= 1.10
+
+[fragment shader]
+#version 120
+
+uniform vec3 light_eye;
+varying vec4 shadow_coords;
+varying vec3 vertex_eye;
+uniform sampler2DShadow shadow_sampler;
+
+void main()
+{
+	vec3 normal = vec3(0.0, 0.0, 1.0);
+	vec4 material_color = vec4(1.0, 0.7, 0.5, 1.0);
+	float shadow = shadow2DProj(shadow_sampler, shadow_coords).x;
+	vec3 l = normalize(light_eye - vertex_eye);
+	vec3 v = normalize(-vertex_eye);
+	vec3 h = normalize(l + v);
+	float n_dot_l = dot(normal, l);
+	vec3 diffuse = material_color.xyz * n_dot_l;
+	float specular = pow(dot(normal, h), 16.0);
+	gl_FragColor = step(0.0, n_dot_l) *
+	vec4((diffuse + vec3(specular)) * shadow, material_color.w);
+}
+
+[vertex shader]
+/*uniform vec3 light_eye;
+varying vec2 texcoord;
+varying vec3 light_surf;
+varying vec3 eye_surf;
+varying vec3 tangent_surf;
+*/
+varying vec3 vertex_eye;
+varying vec4 shadow_coords;
+uniform mat4 mvp, mv, light_mvp;
+
+void main()
+{
+/*	vec3 t = (mv * vec4(1.0,, 0.0)).xyz;
+	vec3 n = (mv * vec4(gl_Normal, 0.0)).xyz;
+*/
+	gl_Position = mvp * gl_Vertex;
+	vertex_eye = vec3(mv * gl_Vertex);
+	shadow_coords = light_mvp * gl_Vertex;
+/*
+	mat3 tbn = mat3(t,
+			cross(n, t),
+			n
+			);
+
+
+	texcoord = vec2(gl_MultiTexCoord0.x * 4, gl_MultiTexCoord0.y);
+	light_surf = normalize((light_eye - vertex_eye) * tbn);
+	eye_surf = normalize((-vertex_eye) * tbn);
+	tangent_surf = gl_MultiTexCoord1.xyz * tbn;
+*/
+}
+
diff --git a/shaders/anholt/9.shader_test b/shaders/anholt/9.shader_test
new file mode 100644
index 0000000..63eb250
--- /dev/null
+++ b/shaders/anholt/9.shader_test
@@ -0,0 +1,16 @@
+[require]
+GLSL >= 1.10
+
+[fragment shader]
+void main()
+{
+}
+
+[vertex shader]
+uniform mat4 mvp, mv;
+
+void main()
+{
+	gl_Position = mvp * gl_Vertex;
+}
+
diff --git a/shaders/anholt/ground.frag b/shaders/anholt/ground.frag
deleted file mode 100644
index 60d0c09..0000000
--- a/shaders/anholt/ground.frag
+++ /dev/null
@@ -1,21 +0,0 @@
-#version 120
-
-uniform vec3 light_eye;
-varying vec4 shadow_coords;
-varying vec3 vertex_eye;
-uniform sampler2DShadow shadow_sampler;
-
-void main()
-{
-	vec3 normal = vec3(0.0, 0.0, 1.0);
-	vec4 material_color = vec4(1.0, 0.7, 0.5, 1.0);
-	float shadow = shadow2DProj(shadow_sampler, shadow_coords).x;
-	vec3 l = normalize(light_eye - vertex_eye);
-	vec3 v = normalize(-vertex_eye);
-	vec3 h = normalize(l + v);
-	float n_dot_l = dot(normal, l);
-	vec3 diffuse = material_color.xyz * n_dot_l;
-	float specular = pow(dot(normal, h), 16.0);
-	gl_FragColor = step(0.0, n_dot_l) *
-	vec4((diffuse + vec3(specular)) * shadow, material_color.w);
-}
diff --git a/shaders/anholt/shadow.frag b/shaders/anholt/shadow.frag
deleted file mode 100644
index 9198103..0000000
--- a/shaders/anholt/shadow.frag
+++ /dev/null
@@ -1,3 +0,0 @@
-void main()
-{
-}
diff --git a/shaders/anholt/shadowmap_display.frag b/shaders/anholt/shadowmap_display.frag
deleted file mode 100644
index 8db3446..0000000
--- a/shaders/anholt/shadowmap_display.frag
+++ /dev/null
@@ -1,7 +0,0 @@
-uniform sampler2D shadow_sampler;
-varying vec2 texcoord;
-
-void main()
-{
-	gl_FragColor = texture2D(shadow_sampler, texcoord);
-}