played with shaders, grass height, sky effects

test_shader.gdshader

@@ -0,0 +1,30 @@
+shader_type spatial;
+render_mode unshaded, depth_draw_always;
+
+uniform sampler2D input_texture : source_color, filter_nearest; 
+
+float random(vec2 uv) {
+    return fract(sin(dot(uv.xy,
+        vec2(12.9898,78.233))) * 43758.5453123);
+}
+void vertex() {
+	// Called for every vertex the material is visible on.
+	if (VERTEX.y > 0.0) {
+		VERTEX.x += VERTEX.x * abs(sin(TIME))/(5.0);
+		VERTEX.z += VERTEX.x * abs(sin(TIME))/(10.0);
+	}
+	
+}
+
+void fragment() {
+	// Called for every pixel the material is visible on.
+	ALBEDO = texture(input_texture, UV).rgb;
+	ALPHA = texture(input_texture, UV).a;
+	ALPHA_SCISSOR_THRESHOLD = 0.5;
+}
+
+
+//void light() {
+//	// Called for every pixel for every light affecting the material.
+//	// Uncomment to replace the default light processing function with this one.
+//}