From fe2eb8178a6daa625b8ab38a388cca766ce57f45 Mon Sep 17 00:00:00 2001
From: Elias Steurer <i@kelteseth.net>
Date: Thu, 10 Sep 2020 17:05:19 +0200
Subject: [PATCH] Add not working water shader

---
 ScreenPlayShader/shader.qrc |  2 ++
 ScreenPlayShader/water.frag | 43 +++++++++++++++++++++++++++++++++++++
 ScreenPlayShader/water.vert | 10 +++++++++
 3 files changed, 55 insertions(+)
 create mode 100644 ScreenPlayShader/water.frag
 create mode 100644 ScreenPlayShader/water.vert

diff --git a/ScreenPlayShader/shader.qrc b/ScreenPlayShader/shader.qrc
index 19b23f07..bedcfb1a 100644
--- a/ScreenPlayShader/shader.qrc
+++ b/ScreenPlayShader/shader.qrc
@@ -2,5 +2,7 @@
     <qresource prefix="/">
         <file>lightning.frag</file>
         <file>lightning.vert</file>
+        <file>water.frag</file>
+        <file>water.vert</file>
     </qresource>
 </RCC>
diff --git a/ScreenPlayShader/water.frag b/ScreenPlayShader/water.frag
new file mode 100644
index 00000000..30bd4b5d
--- /dev/null
+++ b/ScreenPlayShader/water.frag
@@ -0,0 +1,43 @@
+uniform sampler2D qt_Texture0;
+varying vec4 qt_TexCoord0;
+
+uniform float reflectionOffset = 0; // allows player to control reflection position
+uniform float reflectionBlur = 0; // works only if projec's driver is set to GLES3, more information here https://docs.godotengine.org/ru/stable/tutorials/shading/screen-reading_shaders.html
+uniform float calculatedOffset = 0; // this is controlled by script, it takes into account camera position and water object position, that way reflection stays in the same place when camera is moving
+uniform float calculatedAspect = 1; // is controlled by script, ensures that noise is not affected by object scale
+uniform sampler2D noiseTexture;
+uniform float offsetStrength;
+uniform float maxOffset;
+
+uniform vec2 distortionScale = vec2(0.3, 0.3);
+uniform vec2 distortionSpeed = vec2(0.01, 0.02);
+
+uniform float waveSmoothing = .01;
+
+uniform float mainWaveSpeed = 2.5;
+uniform float mainWaveFrequency = 20;
+uniform float mainWaveAmplitude = 0.005;
+
+uniform float secondWaveSpeed = 2.5;
+uniform float secondWaveFrequency = 20;
+uniform float secondWaveAmplitude = 0.015;
+
+uniform float thirdWaveSpeed = 2.5;
+uniform float thirdWaveFrequency = 20;
+uniform float thirdWaveAmplitude = 0.01;
+
+uniform float squashing = 1.0;
+
+uniform vec4 shorelineColor = vec4(1.0, 1.0, 1.0, 1.0); //: hint_color = vec4(1.);
+uniform float shorelineSize  = 0.0025; //: hint_range(0., 0.1) = 0.0025;
+uniform float shorelineFoamSize : hint_range(0., 0.1) = 0.0025;
+uniform float foamSpeed;
+uniform vec2 foamScale;
+
+uniform float time;
+
+
+void main(void)
+{
+    gl_FragColor = texture2D(qt_Texture0, qt_TexCoord0.st);
+}
diff --git a/ScreenPlayShader/water.vert b/ScreenPlayShader/water.vert
new file mode 100644
index 00000000..843e1d70
--- /dev/null
+++ b/ScreenPlayShader/water.vert
@@ -0,0 +1,10 @@
+attribute vec4 qt_Vertex;
+attribute vec4 qt_MultiTexCoord0;
+uniform mat4 qt_ModelViewProjectionMatrix;
+varying vec4 qt_TexCoord0;
+
+void main(void)
+{
+    gl_Position = qt_ModelViewProjectionMatrix * qt_Vertex;
+    qt_TexCoord0 = qt_MultiTexCoord0;
+}