float3 refl = reflect(e, n);
float dist = length(L.xyz);
float3 l = normalize(L.xyz);
float attn = 1.0 / (1.0 + 1.0 / 30 * dist + 1.0 / 700 * dist * dist);
d += saturate(dot(n,l)) * gLightColor[i].xyz * attn.xxx;
s += pow(saturate(dot(-refl, l)), power) * gLightColor[i].xyz;