Long live the slayer!

Initial commit of OpenGL Runtime to repository.
Based on SHA1 61823aaccc6510699a54b34a2fe3f7523dab3b4e
of qt3dstudio repository.

Task-number: QT3DS-3600
Change-Id: Iaeb80237399f0e5656a19ebec9d1ab3a681d8832
Reviewed-by: Pasi Keränen <pasi.keranen@qt.io>
 

1 files changed, 50 insertions, 0 deletions

diff --git a/Studio/Content/Effect Library/Distortion Ripple.effect b/Studio/Content/Effect Library/Distortion Ripple.effect
new file mode 100644
index 0000000..0929be1
--- /dev/null
+++ b/Studio/Content/Effect Library/Distortion Ripple.effect
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<Effect>
+	<MetaData>
+		<!--Distorts the image in a ripple way.-->
+		<Property name="radius" 	formalName="Radius" 		min="0" max="100" 	default="100.0"		description="Adjusts the spread between ripples."/>
+		<Property name="center" 	formalName="Center" 		type="Float2" 		default="0.5 0.5"	description="Adjusts the focus point of the distortion."/>
+		<Property name="ripples" 	formalName="Wave Width" 	min="2" max="100" 	default="95.0"		description="Adjusts the number of ripples."/>
+		<Property name="height" 	formalName="Wave Height" 	min="0" max="100" 	default="25.0"		description="Adjusts the distortion amount."/>
+                <Property name="phase" 		formalName="Ripple Phase" 						default="0.0"		description="The offset of each wave. Animate this\nproperty to see the waves move."/>
+	</MetaData>
+	<Shaders>
+		<Shared>
+varying vec2 center_vec;
+float PI2 = radians(360.0);
+		</Shared>
+		<Shader>
+			<VertexShader>
+void vert ()
+{
+  center_vec = TexCoord - center;
+  //Multiply by x/y ratio so we see a sphere on the screen
+  //instead of an ellipse.
+  center_vec.y *= Texture0Info.y / Texture0Info.x;
+}
+			</VertexShader>
+			<FragmentShader>
+<![CDATA[
+void frag()
+{
+    float dist_to_center = length(center_vec) * 100.0 / radius;;
+	
+    vec2 texc;
+    if(dist_to_center > 1.0) {
+        texc = TexCoord;
+    } else {
+        float r = PI2 * (1.0 - dist_to_center);
+        float distortion = sin(r * (100.0-ripples) + radians(phase));
+        texc = TexCoord - ( TexCoord - center ) * distortion * height / 800.0;
+    }
+
+  if ( texc.x < 0.0 || texc.x > 1.0 || texc.y < 0.0 || texc.y > 1.0 )
+    gl_FragColor = vec4(0.0);
+  else
+    colorOutput(texture2D_0(texc));
+}
+]]>
+			</FragmentShader>
+		</Shader>
+	</Shaders>
+</Effect>