272 lines
9.7 KiB
HLSL
272 lines
9.7 KiB
HLSL
/*
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* The MIT License
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*
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* Copyright 2018-2021 whiteflare.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef INC_UNLIT_WF_UNTOON
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#define INC_UNLIT_WF_UNTOON
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////////////////////////////
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// uniform variable
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////////////////////////////
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#include "WF_INPUT_UnToon.cginc"
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////////////////////////////
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// main structure
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////////////////////////////
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struct appdata {
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float4 vertex : POSITION;
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#ifdef _VC_ENABLE
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float4 vertex_color : COLOR0;
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#endif
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float2 uv : TEXCOORD0;
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float2 uv_lmap : TEXCOORD1;
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float3 normal : NORMAL;
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#ifdef _NM_ENABLE
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float4 tangent : TANGENT;
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#endif
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UNITY_VERTEX_INPUT_INSTANCE_ID
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};
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struct v2f {
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float4 vs_vertex : SV_POSITION;
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#ifdef _VC_ENABLE
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float4 vertex_color : COLOR0;
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#endif
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float3 light_color : COLOR1;
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#ifdef _TS_ENABLE
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float shadow_power : COLOR2;
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#endif
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float2 uv : TEXCOORD0;
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float2 uv_lmap : TEXCOORD1;
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float3 ws_vertex : TEXCOORD2;
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float4 ws_light_dir : TEXCOORD3;
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float3 normal : TEXCOORD4; // world space
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#ifdef _NM_ENABLE
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float3 tangent : TEXCOORD5; // world space
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float3 bitangent : TEXCOORD6; // world space
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#endif
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UNITY_FOG_COORDS(7)
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UNITY_VERTEX_INPUT_INSTANCE_ID
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UNITY_VERTEX_OUTPUT_STEREO
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};
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////////////////////////////
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// UnToon function
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////////////////////////////
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#include "WF_UnToon_Function.cginc"
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////////////////////////////
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// vertex&fragment shader
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////////////////////////////
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v2f vert(in appdata v) {
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v2f o;
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UNITY_SETUP_INSTANCE_ID(v);
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UNITY_INITIALIZE_OUTPUT(v2f, o);
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UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
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o.ws_vertex = UnityObjectToWorldPos(v.vertex.xyz);
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#ifndef _WF_MAIN_Z_SHIFT
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o.vs_vertex = UnityObjectToClipPos(v.vertex.xyz); // 通常の ToClipPos を使う
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#else
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o.vs_vertex = shiftDepthVertex(o.ws_vertex, _WF_MAIN_Z_SHIFT); // Zシフトした値を使う
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#endif
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#ifdef _VC_ENABLE
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o.vertex_color = v.vertex_color;
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#endif
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o.uv = v.uv;
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o.uv_lmap = v.uv_lmap;
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o.ws_light_dir = calcWorldSpaceLightDir(o.ws_vertex);
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#ifdef _NM_ENABLE
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localNormalToWorldTangentSpace(v.normal, v.tangent, o.normal, o.tangent, o.bitangent, _NM_FlipMirror & 1, _NM_FlipMirror & 2);
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#else
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localNormalToWorldTangentSpace(v.normal, o.normal);
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#endif
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// 環境光取得
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float3 ambientColor = calcAmbientColorVertex(v.uv_lmap);
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// 影コントラスト
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calcToonShadeContrast(o.ws_vertex, o.ws_light_dir, ambientColor, o.shadow_power);
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// Anti-Glare とライト色ブレンドを同時に計算
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o.light_color = calcLightColorVertex(o.ws_vertex, ambientColor);
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UNITY_TRANSFER_INSTANCE_ID(v, o);
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UNITY_TRANSFER_FOG(o, o.vs_vertex);
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return o;
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}
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float4 frag(v2f i, uint facing: SV_IsFrontFace) : SV_Target {
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UNITY_SETUP_INSTANCE_ID(i);
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UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(i);
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float4 color;
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float2 uv_main;
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// メイン
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affectBaseColor(i.uv, facing, uv_main, color);
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// 頂点カラー
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affectVertexColor(i.vertex_color, color);
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// カラーマスク
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affect3chColorMask(uv_main, color);
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// アルファマスク適用
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affectAlphaMask(uv_main, color);
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// 色変換
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affectColorChange(color);
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// BumpMap
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float3 ws_normal = i.normal;
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float3 ws_bump_normal;
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affectBumpNormal(i, uv_main, ws_bump_normal, color);
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// ビューポイントへの方向
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float3 ws_view_dir = worldSpaceViewPointDir(i.ws_vertex);
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// カメラへの方向
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float3 ws_camera_dir = worldSpaceCameraDir(i.ws_vertex);
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// カメラとライトの位置関係: -1(逆光) ～ +1(順光)
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float angle_light_camera = calcAngleLightCamera(i.ws_vertex, i.ws_light_dir.xyz);
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// matcapベクトルの配列
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float4x4 matcapVector = calcMatcapVectorArray(ws_view_dir, ws_camera_dir, ws_normal, ws_bump_normal);
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// メタリック
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affectMetallic(i, ws_camera_dir, uv_main, ws_normal, ws_bump_normal, color);
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// Highlight
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affectMatcapColor(calcMatcapVector(matcapVector, _HL_BlendNormal, _HL_Parallax).xy, uv_main, color);
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// ラメ
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affectLame(i, uv_main, ws_normal, color);
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// 階調影
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affectToonShade(i, uv_main, ws_normal, ws_bump_normal, angle_light_camera, color);
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// リムライト
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affectRimLight(i, uv_main, calcMatcapVector(matcapVector, _TR_BlendNormal, 0), angle_light_camera, color);
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// Decal
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affectOverlayTexture(i, uv_main, calcMatcapVector(matcapVector, 1, 0.5), color);
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// Outline
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affectOutline(uv_main, color);
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// Anti-Glare とライト色ブレンドを同時に計算
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color.rgb *= i.light_color;
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// Ambient Occlusion
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affectOcclusion(i, uv_main, color);
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// EmissiveScroll
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affectEmissiveScroll(i.ws_vertex, uv_main, color);
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// ToonFog
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affectToonFog(i, ws_view_dir, color);
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// フレネル
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affectFresnelAlpha(uv_main, ws_normal, ws_view_dir, color);
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// Alpha は 0-1 にクランプ
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color.a = saturate(color.a);
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// fog
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UNITY_APPLY_FOG(i.fogCoord, color);
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return color;
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}
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////////////////////////////
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// アウトライン用 vertex&fragment shader
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////////////////////////////
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float4 shiftOutlineVertex(inout v2f o, float width, float shift) {
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return shiftOutlineVertex(o.ws_vertex, o.normal, width, shift);
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}
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float4 shiftOutlineVertex(inout v2f o) {
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#ifdef _TL_ENABLE
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return shiftOutlineVertex(o, getOutlineShiftWidth(TRANSFORM_TEX(o.uv, _MainTex)), -_TL_Z_Shift);
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#else
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return UnityObjectToClipPos( ZERO_VEC3 );
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#endif
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}
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// vertex シェーダでアウトラインメッシュを張るタイプ。NORMALのみサポートする。
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v2f vert_outline(appdata v) {
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// 通常の vert を使う
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v2f o = vert(v);
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// SV_POSITION を上書き
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o.vs_vertex = shiftOutlineVertex(o);
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return o;
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}
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// geometry シェーダでアウトラインメッシュを張るタイプ。NORMALとEDGEをどちらもサポートする。
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#if SHADER_TARGET >= 40
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[maxvertexcount(15)]
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void geom_outline(triangle v2f v[3], inout TriangleStream<v2f> triStream) {
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UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(v[0]);
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#ifdef _TL_ENABLE
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#ifdef _WF_LEGACY_FEATURE_SWITCH
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if (TGL_ON(_TL_Enable)) {
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#endif
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float width0 = getOutlineShiftWidth(TRANSFORM_TEX(v[0].uv, _MainTex));
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float width1 = getOutlineShiftWidth(TRANSFORM_TEX(v[1].uv, _MainTex));
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float width2 = getOutlineShiftWidth(TRANSFORM_TEX(v[2].uv, _MainTex));
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float shift0 = -_TL_Z_Shift - (TGL_ON(_TL_LineType) ? width0 * 10 : 0);
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float shift1 = -_TL_Z_Shift - (TGL_ON(_TL_LineType) ? width1 * 10 : 0);
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float shift2 = -_TL_Z_Shift - (TGL_ON(_TL_LineType) ? width2 * 10 : 0);
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// NORMAL
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v2f p0 = v[0];
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v2f p1 = v[1];
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v2f p2 = v[2];
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p0.vs_vertex = shiftOutlineVertex(p0, width0, shift0);
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p1.vs_vertex = shiftOutlineVertex(p1, width1, shift1);
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p2.vs_vertex = shiftOutlineVertex(p2, width2, shift2);
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triStream.Append(p0);
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triStream.Append(p1);
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triStream.Append(p2);
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// EDGE
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if (TGL_ON(_TL_LineType)) {
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v2f n0 = v[0];
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v2f n1 = v[1];
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v2f n2 = v[2];
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n0.vs_vertex = shiftOutlineVertex(n0, -width0, shift0);
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n1.vs_vertex = shiftOutlineVertex(n1, -width1, shift1);
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n2.vs_vertex = shiftOutlineVertex(n2, -width2, shift2);
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triStream.Append(n2);
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triStream.Append(p0);
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triStream.Append(n0);
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triStream.Append(p1);
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triStream.Append(n1);
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triStream.Append(p2);
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triStream.Append(n2);
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// 折り返すことで裏面まで描画する
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triStream.Append(p1);
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triStream.Append(n1);
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triStream.Append(p0);
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triStream.Append(n0);
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triStream.Append(p2);
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}
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triStream.RestartStrip();
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#ifdef _WF_LEGACY_FEATURE_SWITCH
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}
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#endif
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#endif
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}
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#endif
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#endif
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