| // Combine waterbody color and reflected color |
| vec4 water_color = mix(body_color, reflected_color, fresnel); |
| vec4 final_color = water_color; |
| float depth = texture2D( |
| DeepMap, vec2(pos_local.x, (pos_local.y))/256.0 ).r * 30.0 - 15.0; |
| // Crest Foam |
| float alphaFactor = texture2D( |
| FoamMap, pos_local.xy/64.0 + g_PerlinMovement / 2.0).r; |
| float foamFactor = alphaFactor * clamp(pos_local.z / 2.0 - 0.1, 0.0, 1.0); |
| final_color = vec4(final_color.xyz, (300.0 - pos_local.x) / 300.0 ); |
| final_color = mix(final_color, vec4(1.0, 1.0, 1.0, 1.0), foamFactor); |
| // Trough Foam |
| alphaFactor = texture2D( |
| FoamMap, vec2(pos_local.x/32.0, pos_local.y/32.0) |
| + g_PerlinMovement / 2.0).r; |
| float foamFactor0 = alphaFactor * clamp( (depth + 3.0) / 5.0, 0.0, 1.0); |
| alphaFactor = texture2D( |
| FoamMap, pos_local.xy/64.0 - g_PerlinMovement / 3.0).r; |
| float foamFactor1 = alphaFactor * clamp( -0.6 - pos_local.z, 0.0, 1.0) |
| * clamp( (depth + 20.0) / 15.0, 0.0, 1.0); |
| final_color = mix(final_color, vec4(1.0, 1.0, 1.0, 1.0), foamFactor0); |
| final_color = mix(final_color, vec4(1.0, 1.0, 1.0, 1.0), foamFactor1); |
| // Fog |
| float fogFactor = computeFogFactor( g_FogDensity, gl_FogFragCoord ); |
| water_color = final_color; |
| // Sun spots |
| float cos_spec = clamp(dot(reflect_vec, g_SunDir), 0.0, 1.0); |
| float sun_spot = pow(cos_spec, g_Shineness); |
| water_color.xyz += g_SunColor * sun_spot; |
| gl_FragColor = water_color; |
