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#ifndef PW_GENERALFUNCS
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#define PW_GENERALFUNCS
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#define HALF_MIN 6.103515625e-5
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#define PW_DEFAULT_TERRAIN_SIZE 2048.0
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#define PW_DEFAULT_TERRAIN_SCALE ( 1.0 / PW_DEFAULT_TERRAIN_SIZE )
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#define PW_GLOBAL_SCALE (_PW_Global_TerrainScale+1.0)
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#define _PW_GD_NORMAL_ON
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#define _PW_GD_METALLICMAP_ON
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#define _PW_SF_GLOBAL_CONTROL_ON
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///SCOTTFIND add keywords to graph stuff
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/// ADD COVER and WORLDMAP keywords
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inline void PW_WorldScaleGraph_half ( in half i_global_TerrainScale, out half2 o_worldScale )
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{
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//#if defined(_PW_SF_COVER_ON) || defined (_PW_SF_WORLDMAP_ON)
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float tscale = i_global_TerrainScale + 1.0;
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o_worldScale.x = PW_DEFAULT_TERRAIN_SCALE * tscale;
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o_worldScale.y = PW_DEFAULT_TERRAIN_SCALE * tscale;
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//#else
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// o_worldScale = half2(1,1);
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//#endif
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}
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//=============================================================================
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inline void CoverVertexUV ( in float2 i_worldUVScale, in float4 i_vertex, inout float2 i_coverLayer0UV,inout float2 i_coverLayer1UV )
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{
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#if defined(_PW_SF_COVER_ON)
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float4 worldPosition = mul ( UNITY_MATRIX_M, i_vertex );
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half2 guv = ( ( worldPosition.xz * i_worldUVScale ) - float2 ( 0.5, 0.5 ) );
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i_coverLayer0UV = guv * _PW_CoverLayer0Tiling;
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i_coverLayer1UV = guv * _PW_CoverLayer1Tiling;
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#endif
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}
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inline void AlphaTestSRP_float (in bool i_vface, in float i_cutoff, out float o_out )
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{
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float alphaTest = 0;
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#if defined(_ALPHATEST_ON)
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alphaTest += i_cutoff;
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#endif
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#if defined(_PW_SF_BILLBOARD_ON)
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#ifndef SHADERPASS_SHADOWCASTER
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alphaTest += (i_vface) ? 0 : 1;
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#endif
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#endif
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o_out = alphaTest;
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}
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inline void AlphaTestSRP_half (in bool i_vface, in half i_cutoff, out half o_out )
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{
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half alphaTest = 0;
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#if defined(_ALPHATEST_ON)
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alphaTest += i_cutoff;
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#endif
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#if defined(_PW_SF_BILLBOARD_ON)
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#ifndef SHADERPASS_SHADOWCASTER
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alphaTest += (i_vface) ? 0 : 1;
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#endif
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#endif
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o_out = alphaTest;
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}
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//=============================================================================
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inline void WorldMapObject_half ( in half4 i_worldMap, in half3 i_albedo, in half3 i_worldMapColorObject, out half3 o_albedo )
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{
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#ifdef _PW_SF_WORLDMAP_ON
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half3 worldMapColor = i_albedo * i_worldMapColorObject;
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o_albedo = lerp ( i_albedo, worldMapColor, i_worldMap.r );
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#else
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o_albedo = i_albedo;
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#endif
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}
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//=============================================================================
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inline void WorldMapUV ( in half2 i_worldUVScale, in half i_worldMapUVScale, out half2 o_uv )
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{
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half4 worldPosition = mul ( UNITY_MATRIX_M, float4(0,0,0,1) );
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half2 worldMapUV = ( ( worldPosition.xz * i_worldUVScale ) + float2 ( 0.5, 0.5 ) ) * i_worldMapUVScale;
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worldMapUV.x = abs ( fmod ( worldMapUV.x, 1.0 ) );
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worldMapUV.y = 1.0 - abs ( fmod ( worldMapUV.y, 1.0 ) );
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o_uv = worldMapUV;
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}
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/*
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//=============================================================================
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inline void WorldMapVertex ( in float2 i_worldUVScale, inout half4 i_variationMap )
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{
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#ifdef _PW_SF_WORLDMAP_ON
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float4 worldPosition = mul ( UNITY_MATRIX_M, float4(0,0,0,1) );
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float2 worldMapUV = ( ( worldPosition.xz * i_worldUVScale ) + float2 ( 0.5, 0.5 ) ) * _PW_WorldMapUVScale;
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worldMapUV.x = abs ( fmod ( worldMapUV.x, 1.0 ) );
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worldMapUV.y = 1.0 - abs ( fmod ( worldMapUV.y, 1.0 ) );
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i_variationMap = tex2Dlod ( __PW_WorldMapColorCover1.rgbPW_WorldMap, float4 ( worldMapUV, 0, 0 ) );
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#endif
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}
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*/
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//=============================================================================
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inline void CoverUVNode_half ( in half3 i_worldPos ,in half2 i_worldUVScale, in half i_userTiling, out half2 i_coverUV )
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{
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#if defined(_PW_SF_COVER_ON)
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i_coverUV = ( ( i_worldPos.xz * i_worldUVScale ) - float2 ( 0.5, 0.5 ) ) * i_userTiling;
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#else
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i_coverUV = half2(0,0);
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#endif
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}
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//-------------------------------------------------------------------------------------
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inline void SeasonalTint_half ( in half3 i_albedo, in half3 i_globalTint, in half i_amount, out half3 o_albedo )
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{
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half3 seasonColor = half3(1,1,1) - i_globalTint;
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o_albedo = lerp ( i_albedo, i_albedo * seasonColor, i_amount );
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}
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//-------------------------------------------------------------------------------------
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inline void BackFaceCheck_half ( in half3 i_normal, in half3 i_viewDir, out half3 o_normal )
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{
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o_normal = dot(i_viewDir, float3(0, 0, 1)) >= 0.0 ? i_normal : -i_normal;
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/*
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half dotNV = dot ( i_viewDir, half3(0, 0, 1) );
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half facing = sign ( dotNV );
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facing = lerp ( 1.0, facing, abs(facing) );
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o_normal = i_normal * facing;
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*/
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}
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//-------------------------------------------------------------------------------------
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inline void BlendVertexMaskAO_half ( in half i_power, in half i_vertexMask, in half i_expPower, in half i_vertexAO, in half i_mapAO, out half o_ao )
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{
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half ao = abs ( lerp ( i_vertexAO * i_mapAO, i_mapAO, i_vertexMask ) );
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half val = pow ( ao, i_expPower );
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o_ao = clamp ( ( 1.0 - i_power ) + val, 0, 1 );
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}
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//-----------------------------------------------------------------------------
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inline void CombineLocalGlobalClamp_half ( in half i_valLocal, in half i_valGlobal, out half o_result )
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{
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#if defined(_PW_SF_GLOBAL_CONTROL_ON)
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o_result = clamp ( i_valLocal + i_valGlobal, 0.0, 1.0 );
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#else
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o_result = i_valLocal;
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#endif
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}
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//-----------------------------------------------------------------------------
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inline void CombineLocalGlobal ( in half i_valLocal, in half i_valGlobal, out half o_val )
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{
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half result;
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#if defined(_PW_SF_GLOBAL_CONTROL_ON)
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result = i_valLocal + i_valGlobal;
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#else
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result = i_valLocal;
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#endif
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o_val = result;
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}
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inline void CombineLocalGlobal ( in float4 i_valLocal, in float4 i_valGlobal, out float4 o_val )
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{
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float4 result;
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#if defined(_PW_SF_GLOBAL_CONTROL_ON)
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result = i_valLocal + i_valGlobal;
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#else
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result = i_valLocal;
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#endif
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o_val = result;
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}
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//=============================================================================
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inline void PW_ScaleNormal_half ( in half4 i_packedNormal, in half i_scale, in bool i_facing, out half3 o_normal )
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{
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half facing = i_facing ? 1 : -1;
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o_normal = i_packedNormal.xyz;
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//o_normal.xy *= i_scale;
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o_normal.z *= facing;
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}
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/*
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Variation Map
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R = object amount
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G = cover vary amount layer 0
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B = cover vary amount layer 1
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A = cover layer 1 fade 0 -1
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*/
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//=============================================================================
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inline void VaryationObject_half ( in half3 i_albedo, in half4 i_variationMap, in half3 i_variationTint, out half3 o_albedo )
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{
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#ifdef _PW_SF_WORLDMAP_ON
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half3 worldMapColor = i_albedo * i_variationTint;
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o_albedo = lerp ( i_albedo, worldMapColor, i_variationMap.r );
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#endif
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}
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/*
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//=============================================================================
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inline void WorldMapCover ( in half4 i_worldMap, inout half3 i_layer0, inout half3 i_layer1, inout half i_progress )
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{
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#ifdef _PW_SF_WORLDMAP_ON
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half3 worldMapColor = i_layer0 * _PW_WorldMapColorCover0.rgb;
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i_layer0 = lerp ( i_layer0, worldMapColor, i_worldMap.g );
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worldMapColor = i_layer1 * _PW_WorldMapColorCover1.rgb;
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i_layer1 = lerp ( i_layer1, worldMapColor, i_worldMap.b );
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i_progress *= i_worldMap.a;
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#endif
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}
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*/
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//=============================================================================
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inline void DitherCrossFade ( half2 i_vpos )
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{
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#ifdef LOD_FADE_CROSSFADE
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//UnityApplyDitherCrossFade(i_vpos);
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float4x4 ditherMatrix =
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{ 1.0 / 17.0, 9.0 / 17.0, 3.0 / 17.0, 11.0 / 17.0,
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13.0 / 17.0, 5.0 / 17.0, 15.0 / 17.0, 7.0 / 17.0,
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4.0 / 17.0, 12.0 / 17.0, 2.0 / 17.0, 10.0 / 17.0,
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16.0 / 17.0, 8.0 / 17.0, 14.0 / 17.0, 6.0 / 17.0
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};
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half mask = ditherMatrix [i_vpos.x%4][i_vpos.y%4];
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float sgn = sign(unity_LODFade.x);
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sgn = lerp ( 1.0, sgn, abs(sgn) );
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clip ( unity_LODFade.x - mask * sgn );
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#endif
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}
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inline void NrmAdd_float(in float3 i_nrmA, in float3 i_nrmB, out float3 o_nrm)
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{
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o_nrm = normalize(float3(i_nrmA.xy + i_nrmB.xy, i_nrmA.z));
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}
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inline void NrmAdd_half(in half3 i_nrmA, in half3 i_nrmB, out half3 o_nrm)
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{
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o_nrm = normalize(half3(i_nrmA.xy + i_nrmB.xy, i_nrmA.z));
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}
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inline void WindMovement_float ( in float3 i_vertexPos, in float i_windSpeed, in float i_windGust, in float3 i_windDirection, out float3 o_vertexPos )
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{
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o_vertexPos = i_vertexPos;
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}
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//=============================================================================
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inline void Translucent_half (
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in half3 i_albedo,
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in half3 i_worldNormal,
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in half3 i_lightDir,
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in half3 i_lightColor,
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in half3 i_viewDir,
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in half4 i_coverRGBA,
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in half i_thickness,
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in half3 i_user_Tint,
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in half i_user_Power,
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in half i_user_Distortion,
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out half4 o_addLight
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)
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{
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#ifdef _PW_SF_SSS_ON
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half3 color;
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half thickness;
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#ifdef _PW_SF_COVER_ON
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color = lerp ( i_albedo, i_coverRGBA.rgb, i_coverRGBA.a ) * i_user_Tint;
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thickness = max ( i_thickness - ( i_coverRGBA.a * 0.25 ), 0 );
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#else
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color = i_albedo * i_user_Tint;
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thickness = i_thickness;
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#endif
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half3 transLightDir = i_lightDir + i_worldNormal * i_user_Distortion;
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half transDot = max ( 0, dot ( i_viewDir, -transLightDir ) );
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half transLight = ( transDot * transDot * transDot ) * i_user_Power * thickness;
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o_addLight = half4 ( color * i_lightColor * transLight, 1 );
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#else
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o_addLight = half4(0,0,0,0);
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#endif
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}
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//=============================================================================
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// does SSS and Translucent/SSS
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inline void AddLighting_half (
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in half3 i_albedo,
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in half3 i_worldNormal,
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in half3 i_lightDir,
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in half3 i_lightColor,
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in half3 i_viewDir,
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in half4 i_coverRGBA,
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in half i_thickness,
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in half3 i_user_Tint,
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in half i_user_Power,
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in half i_user_Distortion,
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in half i_wrapLighting,
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out half4 o_addLight
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)
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{
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#ifdef _PW_SF_SSS_ON
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half3 color;
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half thickness;
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#ifdef _PW_SF_COVER_ON
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color = lerp ( i_albedo, i_coverRGBA.rgb, i_coverRGBA.a ) * i_user_Tint;
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thickness = max ( i_thickness - ( i_coverRGBA.a * 0.25 ), 0 );
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#else
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color = i_albedo * i_user_Tint;
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thickness = i_thickness;
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#endif
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half3 transLightDir = i_lightDir + i_worldNormal * i_user_Distortion;
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half transDot = max ( 0, dot ( i_viewDir, -transLightDir ) );
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half transLight = pow( transDot, 16 ) * i_user_Power * thickness;
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o_addLight = half4 ( color * i_lightColor * transLight, 1 );
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//half fakeShadow = clamp ( ( i_vertexShade - 0.5 ) * 2 + 0.6, 0, 1 );
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//o_addLight *= fakeShadow;
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#else
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o_addLight = half4(0,0,0,0);
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#endif
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// i_wraping should be a uniform
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if ( i_wrapLighting > 0.0 )
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{
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half dotP = 1.0 - abs ( dot ( i_worldNormal, i_lightDir ) );
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o_addLight.rgb += i_lightColor * i_albedo * dotP * dotP * dotP * i_wrapLighting;
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}
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}
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//=============================================================================
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inline void CoverSurface_half (
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in half3 i_albedo,
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in half3 i_normal,
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in half i_metallic,
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in half i_smoothness,
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in half4 i_sss,
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in half i_worldPosY,
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in half i_worldNormalY,
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in half4 i_user_Texture,
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in half3 i_user_Normal,
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in half i_user_EdgeFade,
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in half i_global_Progress,
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in half i_user_Progress,
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in half i_user_Metallic,
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in half i_user_Smoothness,
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in half i_user_AlphaClamp,
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in half i_user_Wrap,
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in half i_user_FadeStartY,
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in half i_user_FadeDistance,
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in half3 i_user_VaryColor,
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in half i_varyColorAmount,
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out half3 o_albedo,
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out half3 o_normal,
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out half o_metallic,
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out half o_smoothness,
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out half4 o_sss
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)
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{
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#ifdef _PW_SF_COVER_ON
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half3 albedo;
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half alpha;
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half alwaysUpY = abs ( i_worldNormalY );
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albedo = i_user_Texture.rgb;
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alpha = clamp ( 0, 1, abs ( i_user_AlphaClamp ) + ( i_user_Texture.a * i_user_AlphaClamp * 10 ) );
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half dissolve = 1.0 - ( alwaysUpY * alpha );
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half edgeSize = lerp ( dissolve + i_user_EdgeFade, dissolve - i_user_EdgeFade, dissolve );
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half progress;
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CombineLocalGlobalClamp_half ( i_user_Progress, i_global_Progress, progress );
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progress = smoothstep ( progress + i_user_EdgeFade, progress - i_user_EdgeFade, edgeSize );
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#ifdef _PW_SF_WORLDMAP_ON
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albedo = lerp ( albedo, albedo * i_user_VaryColor, i_varyColorAmount );
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#endif
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// fade cover
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half delta = i_worldPosY - i_user_FadeStartY;
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half sgn = max ( sign ( delta ), 0 );
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half fade = clamp ( length ( delta ) / max ( i_user_FadeDistance, HALF_MIN ), 0.0, 1.0 ) * sgn;
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progress *= fade;
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// progress on top only
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half worldY = saturate ( i_worldNormalY );
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half amount = progress * min ( worldY * worldY + i_user_Wrap, 1 ) * alpha;
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// color for translucent on top
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#ifdef _PW_SF_SSS_ON
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half4 tempSSSCover;
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half tempAmount = progress * alwaysUpY * alpha;
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tempSSSCover.rgb = albedo;
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tempSSSCover.a = tempAmount;
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o_sss = lerp ( i_sss, tempSSSCover, tempAmount );
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#else
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o_sss = half4(0,0,0,0);
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#endif
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o_albedo = lerp ( i_albedo, albedo, amount );
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o_normal = lerp ( i_normal, i_user_Normal, amount*0.25 );
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o_metallic = lerp ( i_metallic, i_user_Metallic, amount );
|
||||
o_smoothness = lerp ( i_smoothness, i_user_Smoothness, amount );
|
||||
#else
|
||||
o_albedo = i_albedo;
|
||||
o_normal = i_normal;
|
||||
o_metallic = i_metallic;
|
||||
o_smoothness = i_smoothness;
|
||||
o_sss = half4(0,0,0,0);
|
||||
#endif
|
||||
}
|
||||
|
||||
#endif // PW_GENERALFUNCS
|
||||
|
||||
|
||||
|
||||
Reference in new issue
Block a user