Reflection water shader experiment

### fragment
uniform cubemap reflect_map;
uniform float power = 26.5;
uniform float time_ratio = 0.8;
uniform color water_color = vec4(0.24,0.45,0.24,1.0);
uniform float mist = 0.4;
uniform vec2 uv_inter = vec2(0.5,0.5);

vec2 cen = UV - uv_inter; //vec2(0.5,0.5);
float rTime = TIME*time_ratio;
float d = length( cen ) * 2.0;
float d2 = 1.0-d;
float s = sin( power * d - rTime) * d2;
float c = cos( power * d - rTime) * d2;
NORMAL.x += c;
NORMAL.y += s;
NORMAL = normalize( NORMAL );
//vec3 n_reflection = normalize(reflect(vec3(VAR1.x+cen.x,VAR1.z,VAR1.y+cen.y), NORMAL));
vec3 n_reflection = normalize(reflect(vec3(VAR1.x,VAR1.y,VAR1.z), NORMAL));
vec4 cor = texcube(reflect_map, n_reflection ); //vec3(cen.x,cen.y,0.54));
cor.a = water_color.a;

DIFFUSE_ALPHA = mix(water_color,cor,mist);
//DIFFUSE = vec3(cor.r,cor.g,cor.b);// + vec4(1.0,1.0,1.0,1.0)*abs(s); //vec4(0.0,0.2,0.6,1.0);
//DIFFUSE_ALPHA = mix(cor, vec4(1.0,1.0,1.0,1.0), abs(s)); //vec4(0.0,0.2,0.6,1.0)

### vertex
//VAR1 = normalize(MODELVIEW_MATRIX * vec4(VERTEX.x,VERTEX.y,VERTEX.z,1.0)); //* vec4(0.0-1.0,0.0-1.0,0.0-1.0,0.0-1.0);//MODELVIEW_MATRIX.y;
VAR1 = normalize(vec4(VERTEX.x,VERTEX.y,VERTEX.z,0.0) - INV_CAMERA_MATRIX.z);

### Light
float NdotL = max(0.0,dot( NORMAL, LIGHT_DIR ));
LIGHT = LIGHT_DIFFUSE * DIFFUSE * NdotL;
if (NdotL > 0.0) {
        //vec3 half_vec = normalize(LIGHT_DIR + EYE_VEC);
        //float eye_light = max(dot(NORMAL, half_vec),0.0);
    //LIGHT+=LIGHT_SPECULAR * SPECULAR * pow( eye_light, SPECULAR_EXP );
};