SuperTuxKart 1.5 upstream source (from official release tarball)

data/shaders/sp_grass_pass.vert

@@ -0,0 +1,42 @@
+uniform vec3 wind_direction;
+
+layout(location = 0) in vec3 i_position;
+
+#if defined(Converts_10bit_Vector)
+layout(location = 1) in vec4 i_normal_orig;
+#else
+layout(location = 1) in vec4 i_normal;
+#endif
+
+layout(location = 2) in vec4 i_color;
+layout(location = 3) in vec2 i_uv;
+layout(location = 8) in vec3 i_origin;
+layout(location = 9) in vec4 i_rotation;
+layout(location = 10) in vec4 i_scale;
+layout(location = 12) in ivec2 i_misc_data;
+
+#stk_include "utils/get_world_location.vert"
+
+out vec3 normal;
+out vec2 uv;
+out float hue_change;
+
+void main()
+{
+
+#if defined(Converts_10bit_Vector)
+    vec4 i_normal = convert10BitVector(i_normal_orig);
+#endif
+
+    vec3 test = sin(wind_direction * (i_position.y * 0.1));
+    test += cos(wind_direction) * 0.7;
+
+    vec4 world_position = getWorldPosition(i_origin + test * i_color.r,
+        i_rotation, i_scale.xyz, i_position);
+    vec3 world_normal = rotateVector(i_rotation, i_normal.xyz);
+
+    normal = world_normal;
+    uv = i_uv;
+    hue_change = float(i_misc_data.y) * 0.01;
+    gl_Position = u_projection_view_matrix * world_position;
+}