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102 lines
2.9 KiB
HLSL
102 lines
2.9 KiB
HLSL
#ifndef LIGHTING_KSP_INCLUDED
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#define LIGHTING_KSP_INCLUDED
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inline fixed4 LightingBlinnPhongSmooth(SurfaceOutput s, fixed3 lightDir, half3 viewDir, fixed atten)
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{
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s.Normal = normalize(s.Normal);
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half3 h = normalize(lightDir + viewDir);
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fixed diff = max(0, dot(s.Normal, lightDir));
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float nh = max(0, dot(s.Normal, h));
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float spec = pow(nh, s.Specular*128.0) * s.Gloss;
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fixed4 c;
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c.rgb = (s.Albedo * _LightColor0.rgb * diff + _LightColor0.rgb * _SpecColor.rgb * spec) * (atten);
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c.a = s.Alpha + _LightColor0.a * _SpecColor.a * spec * atten;
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return c;
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}
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inline half4 LightingUnlit(SurfaceOutput s, half3 lightDir, half atten)
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{
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// half diff = max (0, dot (s.Normal, lightDir));
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half4 c;
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c.rgb = s.Albedo;
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c.a = s.Alpha;
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return c;
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}
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inline half4 LightingUnlit_PrePass(SurfaceOutput s, half4 light)
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{
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half4 c;
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c.rgb = s.Albedo;
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c.a = s.Alpha;
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return c;
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}
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fixed4 LightingNoLighting(SurfaceOutput s, fixed3 lightDir, fixed atten) { return fixed4(0, 0, 0, 0); }
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float4 _Color;
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half _LightBoost;
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half4 LightingLightWrapped(SurfaceOutput s, half3 lightDir, half3 viewDir, half atten) {
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float3 w = _Color.rgb*0.5;
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half3 NdotL = dot(s.Normal, lightDir);
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//Specular term
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half3 h = normalize(lightDir + viewDir);
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s.Normal = normalize(s.Normal);
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float NdotH = dot(s.Normal, h);
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float spec = pow(max(NdotH, 0), s.Specular * 128.0) * s.Gloss;
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fixed3 specColor = _SpecColor.rgb * _LightColor0.rgb;
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half3 diff = NdotL * (1 - w) + w;
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half4 c;
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c.rgb = ((s.Albedo * _LightColor0.rgb * diff) + (specColor * spec)) * (atten * _LightBoost);
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c.a = s.Alpha + (_LightColor0.a * _SpecColor.a * spec * atten);
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return c;
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}
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float4 _LocalCameraPos;
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float4 _LocalCameraDir;
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float4 _UnderwaterFogColor;
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float _UnderwaterMinAlphaFogDistance;
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float _UnderwaterMaxAlbedoFog;
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float _UnderwaterMaxAlphaFog;
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float _UnderwaterAlbedoDistanceScalar;
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float _UnderwaterAlphaDistanceScalar;
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float _UnderwaterFogFactor;
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float4 UnderwaterFog(float3 worldPos, float3 color)
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{
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float3 toPixel = worldPos - _LocalCameraPos.xyz;
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float toPixelLength = length(toPixel); ///< Comment out the math--looks better without it.
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//float angleDot = dot(_LocalCameraDir.xyz, toPixel / toPixelLength);
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//angleDot = lerp(0.00000001, angleDot, saturate(sign(angleDot)));
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//float waterDist = -_LocalCameraPos.w / angleDot;
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//float dist = min(toPixelLength, waterDist);
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float underwaterDetection = _UnderwaterFogFactor * _LocalCameraDir.w; ///< sign(1 - sign(_LocalCameraPos.w));
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float albedoLerpValue = underwaterDetection * (_UnderwaterMaxAlbedoFog * saturate(toPixelLength * _UnderwaterAlbedoDistanceScalar));
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float alphaFactor = 1 - underwaterDetection * (_UnderwaterMaxAlphaFog * saturate((toPixelLength - _UnderwaterMinAlphaFogDistance) * _UnderwaterAlphaDistanceScalar));
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return float4(lerp(color, _UnderwaterFogColor.rgb, albedoLerpValue), alphaFactor);
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}
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#endif |