From f452839b929fdbc19e6a28a41ee6124c24477f9d Mon Sep 17 00:00:00 2001
From: saschawillems <webmaster@saschawillems.de>
Date: Tue, 22 Aug 2017 21:07:17 +0200
Subject: [PATCH] Added missing stencil outline example shaders

---
 data/shaders/stencilbuffer/outline.frag     |   8 +++++
 data/shaders/stencilbuffer/outline.frag.spv | Bin 0 -> 340 bytes
 data/shaders/stencilbuffer/outline.vert     |  24 +++++++++++++++
 data/shaders/stencilbuffer/outline.vert.spv | Bin 0 -> 1520 bytes
 data/shaders/stencilbuffer/toon.frag        |  30 +++++++++++++++++++
 data/shaders/stencilbuffer/toon.frag.spv    | Bin 0 -> 2144 bytes
 data/shaders/stencilbuffer/toon.vert        |  31 ++++++++++++++++++++
 data/shaders/stencilbuffer/toon.vert.spv    | Bin 0 -> 2696 bytes
 8 files changed, 93 insertions(+)
 create mode 100644 data/shaders/stencilbuffer/outline.frag
 create mode 100644 data/shaders/stencilbuffer/outline.frag.spv
 create mode 100644 data/shaders/stencilbuffer/outline.vert
 create mode 100644 data/shaders/stencilbuffer/outline.vert.spv
 create mode 100644 data/shaders/stencilbuffer/toon.frag
 create mode 100644 data/shaders/stencilbuffer/toon.frag.spv
 create mode 100644 data/shaders/stencilbuffer/toon.vert
 create mode 100644 data/shaders/stencilbuffer/toon.vert.spv

diff --git a/data/shaders/stencilbuffer/outline.frag b/data/shaders/stencilbuffer/outline.frag
new file mode 100644
index 00000000..eeb56cc3
--- /dev/null
+++ b/data/shaders/stencilbuffer/outline.frag
@@ -0,0 +1,8 @@
+#version 450
+
+layout (location = 0) out vec4 outFragColor;
+
+void main() 
+{
+	outFragColor = vec4(vec3(1.0), 1.0); 
+}
\ No newline at end of file
diff --git a/data/shaders/stencilbuffer/outline.frag.spv b/data/shaders/stencilbuffer/outline.frag.spv
new file mode 100644
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diff --git a/data/shaders/stencilbuffer/outline.vert b/data/shaders/stencilbuffer/outline.vert
new file mode 100644
index 00000000..ea6fc171
--- /dev/null
+++ b/data/shaders/stencilbuffer/outline.vert
@@ -0,0 +1,24 @@
+#version 450
+
+layout (location = 0) in vec4 inPos;
+layout (location = 2) in vec3 inNormal;
+
+layout (binding = 0) uniform UBO 
+{
+	mat4 projection;
+	mat4 model;
+	vec4 lightPos;
+	float outlineWidth;
+} ubo;
+
+out gl_PerVertex
+{
+	vec4 gl_Position;
+};
+
+void main() 
+{
+	// Extrude along normal
+	vec4 pos = vec4(inPos.xyz + inNormal * ubo.outlineWidth, inPos.w);
+	gl_Position = ubo.projection * ubo.model * pos;
+}
diff --git a/data/shaders/stencilbuffer/outline.vert.spv b/data/shaders/stencilbuffer/outline.vert.spv
new file mode 100644
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diff --git a/data/shaders/stencilbuffer/toon.frag b/data/shaders/stencilbuffer/toon.frag
new file mode 100644
index 00000000..3d6a081a
--- /dev/null
+++ b/data/shaders/stencilbuffer/toon.frag
@@ -0,0 +1,30 @@
+#version 450
+
+layout (binding = 1) uniform sampler2D samplerColorMap;
+
+layout (location = 0) in vec3 inNormal;
+layout (location = 1) in vec3 inColor;
+layout (location = 2) in vec3 inLightVec;
+
+layout (location = 0) out vec4 outFragColor;
+
+void main() 
+{
+	vec3 color;
+	vec3 N = normalize(inNormal);
+	vec3 L = normalize(inLightVec);
+	float intensity = dot(N,L);
+	if (intensity > 0.98)
+		color = inColor * 1.5;
+	else if  (intensity > 0.9)
+		color = inColor * 1.0;
+	else if (intensity > 0.5)
+		color = inColor * 0.6;
+	else if (intensity > 0.25)
+		color = inColor * 0.4;
+	else
+		color = inColor * 0.2;
+	// Desaturate a bit
+	color = vec3(mix(color, vec3(dot(vec3(0.2126,0.7152,0.0722), color)), 0.1));	
+	outFragColor.rgb = color;
+}
\ No newline at end of file
diff --git a/data/shaders/stencilbuffer/toon.frag.spv b/data/shaders/stencilbuffer/toon.frag.spv
new file mode 100644
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diff --git a/data/shaders/stencilbuffer/toon.vert b/data/shaders/stencilbuffer/toon.vert
new file mode 100644
index 00000000..a6c00d95
--- /dev/null
+++ b/data/shaders/stencilbuffer/toon.vert
@@ -0,0 +1,31 @@
+#version 450
+
+layout (location = 0) in vec3 inPos;
+layout (location = 1) in vec3 inColor;
+layout (location = 2) in vec3 inNormal;
+
+layout (binding = 0) uniform UBO 
+{
+	mat4 projection;
+	mat4 model;
+	vec4 lightPos;
+} ubo;
+
+layout (location = 0) out vec3 outNormal;
+layout (location = 1) out vec3 outColor;
+layout (location = 2) out vec3 outLightVec;
+
+out gl_PerVertex
+{
+	vec4 gl_Position;
+};
+
+void main() 
+{
+	outColor = vec3(1.0, 0.0, 0.0);
+	gl_Position = ubo.projection * ubo.model * vec4(inPos.xyz, 1.0);
+	outNormal = mat3(ubo.model) * inNormal;
+	vec4 pos = ubo.model * vec4(inPos, 1.0);
+	vec3 lPos = mat3(ubo.model) * ubo.lightPos.xyz;
+	outLightVec = lPos - pos.xyz;
+}
\ No newline at end of file
diff --git a/data/shaders/stencilbuffer/toon.vert.spv b/data/shaders/stencilbuffer/toon.vert.spv
new file mode 100644
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