shader_type spatial;
render_mode world_vertex_coords, cull_disabled, vertex_lighting;

uniform float CURVATURE;
uniform float CURVATURE_ACTIVE;
uniform float CURVATURE_DISTANCE;

uniform sampler2D BASE_TEX;

void vertex() {
	if(CURVATURE_ACTIVE == 1.0) {
		NORMAL = (MODEL_MATRIX * vec4(NORMAL, 0.0)).xyz;
		float dist = length(VIEW_MATRIX[3].xyz - VERTEX) / CURVATURE_DISTANCE;
		VERTEX.y -= pow(dist, CURVATURE);
	}
}

void fragment() {
	vec4 tex = texture(BASE_TEX, UV);
	
	if(tex.a < 0.3) {
		discard;
	}
	
	ALBEDO = tex.rgb;
	ALPHA = tex.a;
}