From af64f953d4f01a7c7bd3415ff5edfff8d4f7c48d Mon Sep 17 00:00:00 2001
From: Stefan Suhren <suhren.stefan@fh-swf.de>
Date: Tue, 6 Oct 2015 12:52:40 +0200
Subject: Initial commit

---
 shaders/fshader.fsh | 30 ++++++++++++++++++++++++++++
 shaders/vshader.vsh | 56 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 86 insertions(+)
 create mode 100644 shaders/fshader.fsh
 create mode 100644 shaders/vshader.vsh

(limited to 'shaders')

diff --git a/shaders/fshader.fsh b/shaders/fshader.fsh
new file mode 100644
index 0000000..f67bbfc
--- /dev/null
+++ b/shaders/fshader.fsh
@@ -0,0 +1,30 @@
+//precision highp float;
+uniform mediump vec4 color;
+varying highp vec4 v_AmbientAndDiffuseColor;
+varying highp vec4 v_SpecularColor;
+varying highp float v_AmbientLightBrightness;
+varying highp float v_DiffuseBrightness;
+varying highp float v_SpecularBrightness;
+varying highp vec2 v_TexCoord;
+uniform highp vec2 u_viewPortCenter;
+uniform highp float u_diameterSquare;
+
+uniform bool u_TextureEnabled;
+uniform sampler2D s_Texture;
+
+//highp vec2 centerVec;
+
+
+void main(void)
+{
+//    centerVec =  gl_FragCoord.xy - u_viewPortCenter;
+//    if(dot(centerVec, centerVec) > u_diameterSquare)
+//        discard;
+
+    if(u_TextureEnabled)
+      gl_FragColor = texture2D(s_Texture, v_TexCoord) * (v_AmbientLightBrightness + v_DiffuseBrightness)
+              + v_SpecularBrightness * v_SpecularColor;
+    else
+      gl_FragColor = v_AmbientAndDiffuseColor * (v_AmbientLightBrightness + v_DiffuseBrightness)
+                   + v_SpecularBrightness * v_SpecularColor;
+}
diff --git a/shaders/vshader.vsh b/shaders/vshader.vsh
new file mode 100644
index 0000000..e592d0b
--- /dev/null
+++ b/shaders/vshader.vsh
@@ -0,0 +1,56 @@
+attribute highp vec4 a_Vertex;
+attribute highp vec4 a_Color;
+attribute highp vec3 a_Normal;
+attribute highp vec2 a_TexCoord;
+
+uniform bool u_LightingEnabled;
+uniform bool u_ColorArrayEnabled;
+uniform highp mat4 u_MvpMatrix;
+uniform highp mat3 u_NormalMatrix;
+uniform highp vec3 u_LightDirection;
+uniform highp vec3 u_HalfPlaneVector;
+uniform highp vec4 u_AmbientAndDiffuseColor;
+uniform highp float u_AmbientLightBrightness;
+uniform highp vec4 u_SpecularColor;
+uniform highp float u_Shininess;
+uniform int u_PointSize;
+
+varying highp vec2 v_TexCoord;
+varying highp vec4 v_AmbientAndDiffuseColor;
+varying highp vec4 v_SpecularColor;
+varying highp float v_AmbientLightBrightness;
+varying highp float v_DiffuseBrightness;
+varying highp float v_SpecularBrightness;
+
+const highp float c_Zero = 0.0;
+highp vec3 eyeSpaceNormal;
+
+highp float calculateDiffuseBrightness()
+{
+    if(u_LightingEnabled)
+       return max(c_Zero, dot(eyeSpaceNormal, u_LightDirection));
+    else return 1.0;
+}
+
+highp float calculateSpecularBrightness()
+{
+    highp float nDotHp = max(c_Zero, dot(eyeSpaceNormal, u_HalfPlaneVector));
+    if(u_LightingEnabled && nDotHp > c_Zero)
+       return pow(nDotHp, u_Shininess);
+    else return 0.0;
+}
+
+void main(void)
+{
+    gl_Position = u_MvpMatrix * a_Vertex;
+    if(u_LightingEnabled)
+      eyeSpaceNormal = normalize(u_NormalMatrix * a_Normal);
+    v_TexCoord = a_TexCoord;
+    if(u_ColorArrayEnabled)
+       v_AmbientAndDiffuseColor = a_Color;
+    else v_AmbientAndDiffuseColor = u_AmbientAndDiffuseColor;
+    v_AmbientLightBrightness = u_AmbientLightBrightness;
+    v_DiffuseBrightness = calculateDiffuseBrightness();
+    v_SpecularColor = u_SpecularColor;
+    v_SpecularBrightness = calculateSpecularBrightness();
+}
-- 
cgit v1.2.3-70-g09d2