1 files changed, 44 insertions, 0 deletions
diff --git a/shaders/forest.vert b/shaders/forest.vert
new file mode 100644
index 0000000..8fb9528
--- /dev/null
+++ b/shaders/forest.vert
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+#version 150
+#extension GL_ARB_explicit_attrib_location : enable
+#extension GL_ARB_explicit_uniform_location : enable
+
+layout(location = 0) in vec3 in_position ;
+layout(location = 2) in vec4 in_color ;
+layout(location = 1) in vec3 in_normal ;
+layout(location = 3) in vec2 in_texcoord ;
+
+layout(location = 4) uniform mat4 pjMatrix ;
+layout(location = 5) uniform mat4 mvMatrix ;
+layout(location = 8) uniform float time ;
+layout(location = 9) uniform mat3 normalMatrix ;
+
+layout(location = 10) in vec3 in_translation ;
+layout(location = 11) in vec3 in_scale ;
+layout(location = 12) in vec2 in_sincos_rot ;
+layout(location = 13) in float noise ;
+
+out vec2 texposition ;
+out vec3 normal ;
+out vec4 frag_position ;
+
+void main() {
+    float s = in_sincos_rot.x ;
+    float c = in_sincos_rot.y ;
+
+    mat3 rot = mat3( c,0,s,
+                     0,1,0,
+                    -s,0,c ) ;
+    normal =-rot * normalMatrix * in_normal ;
+    texposition = in_texcoord ;
+
+    vec3 real_pos1 = (rot * in_position) * in_scale ;
+
+    float val = sin(( (time+noise) * noise) / 100.0) / 30.0 * pow(real_pos1.y,2) ;
+    s = sin( val ) ; c = cos( val ) ;
+    rot = mat3( c, -s, 0,
+                s,  c, 0,
+                0,  0, 1 );
+
+    vec3 real_pos = (rot * real_pos1) + in_translation ;
+    gl_Position = pjMatrix * (frag_position = mvMatrix * vec4(real_pos,1.0) );
+}