uv mapping onto water good

4 files changed, 87 insertions, 0 deletions

diff --git a/resources/images/halftone.png b/resources/images/halftone.png
new file mode 100644
index 0000000..c70e107
--- /dev/null
+++ b/resources/images/halftone.png
diff --git a/resources/images/seafoam.jpeg b/resources/images/seafoam.jpeg
new file mode 100644
index 0000000..520255d
--- /dev/null
+++ b/resources/images/seafoam.jpeg
diff --git a/resources/shaders/foam.frag b/resources/shaders/foam.frag
new file mode 100644
index 0000000..86403d8
--- /dev/null
+++ b/resources/shaders/foam.frag
@@ -0,0 +1,33 @@
+#version 330 core
+
+in vec4 saturation_const;
+in vec2 dir;
+in vec2 tex;
+in vec3 pos;
+
+
+uniform float time;
+uniform sampler2D halftone_texture;
+uniform vec2 widthBounds;
+uniform vec2 lengthBounds;
+
+out vec4 fragColor;
+
+float getSaturation(vec2 k, vec2 xzPos, float adjWaveLength, float phaseC){
+    float result = dot(k, xzPos) * 3.14f / adjWaveLength;
+    result = result + phaseC*time*.5f;
+    result = -tan(result) + 1.57f;
+    result = exp(result) / 4.f;
+
+    return result;
+
+}
+
+
+
+void main() {
+   //float saturation = getSaturation(saturation_const[0], saturation_const[1],saturation_const[2],saturation_const[3]);
+   vec4 color = texture(halftone_texture, tex);
+
+   fragColor = vec4(vec3(color), 1);
+}
diff --git a/resources/shaders/foam.vert b/resources/shaders/foam.vert
new file mode 100644
index 0000000..6192ba7
--- /dev/null
+++ b/resources/shaders/foam.vert
@@ -0,0 +1,54 @@
+#version 330 core
+
+layout(location = 0) in vec3 position; // Position of the vertex
+layout(location = 1) in float wavelength; // wavelenth adjusted for ocean depth
+layout(location = 2) in vec2 direction; // wave slope
+layout(location = 3) in vec2 texCoords; // texture coords
+layout(location = 3) in vec3 norm; // texture coords
+
+
+out vec4 saturation_const;
+out vec2 dir;
+out vec2 tex;
+out vec3 pos;
+
+
+
+uniform float time;
+uniform float phaseC; // phase constant
+uniform mat4 proj;
+uniform mat4 view;
+uniform mat4 model;
+uniform mat4 inverseView;
+uniform vec2 widthBounds;
+uniform vec2 lengthBounds;
+
+vec2 calculateTexCoord(vec3 pos){
+//    vec3 v = vec3(0,0,1);
+//    if (abs(norm.y) < 1.f){
+//        v = normalize(vec3(0,1,0) - norm.y*norm);
+//    }
+//    vec3 u = normalize(cross(norm, v));
+
+//    float u_coord = dot(u, vec3(pos.x, 0, pos.z)) - widthBounds[0]/ (widthBounds[1] - widthBounds[0]);
+//    float v_coord = dot(v, vec3(pos.x, 0, pos.z)) - lengthBounds[0]/ (lengthBounds[1] - lengthBounds[0]);
+
+     float u_coord = position.x / (widthBounds[1] - widthBounds[0]);
+     float v_coord = position.z / (lengthBounds[1] - lengthBounds[0]);
+
+
+     float offset = .5f;
+    return vec2(u_coord + offset, v_coord + offset);
+
+}
+
+void main() {
+    dir = direction;
+    saturation_const = vec4(wavelength, phaseC, position.x, position.z);
+
+    gl_Position = proj * view * model * vec4(position, 1);
+    pos = vec3(gl_Position);
+
+    tex = calculateTexCoord(position);
+
+}