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TMP_SDF SSD.shader 12 KB

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  1. Shader "TextMeshPro/Distance Field SSD" {
  2. Properties {
  3. _FaceTex ("Face Texture", 2D) = "white" {}
  4. _FaceUVSpeedX ("Face UV Speed X", Range(-5, 5)) = 0.0
  5. _FaceUVSpeedY ("Face UV Speed Y", Range(-5, 5)) = 0.0
  6. [HDR]_FaceColor ("Face Color", Color) = (1,1,1,1)
  7. _FaceDilate ("Face Dilate", Range(-1,1)) = 0
  8. [HDR]_OutlineColor ("Outline Color", Color) = (0,0,0,1)
  9. _OutlineTex ("Outline Texture", 2D) = "white" {}
  10. _OutlineUVSpeedX ("Outline UV Speed X", Range(-5, 5)) = 0.0
  11. _OutlineUVSpeedY ("Outline UV Speed Y", Range(-5, 5)) = 0.0
  12. _OutlineWidth ("Outline Thickness", Range(0, 1)) = 0
  13. _OutlineSoftness ("Outline Softness", Range(0,1)) = 0
  14. _Bevel ("Bevel", Range(0,1)) = 0.5
  15. _BevelOffset ("Bevel Offset", Range(-0.5,0.5)) = 0
  16. _BevelWidth ("Bevel Width", Range(-.5,0.5)) = 0
  17. _BevelClamp ("Bevel Clamp", Range(0,1)) = 0
  18. _BevelRoundness ("Bevel Roundness", Range(0,1)) = 0
  19. _LightAngle ("Light Angle", Range(0.0, 6.2831853)) = 3.1416
  20. [HDR]_SpecularColor ("Specular", Color) = (1,1,1,1)
  21. _SpecularPower ("Specular", Range(0,4)) = 2.0
  22. _Reflectivity ("Reflectivity", Range(5.0,15.0)) = 10
  23. _Diffuse ("Diffuse", Range(0,1)) = 0.5
  24. _Ambient ("Ambient", Range(1,0)) = 0.5
  25. _BumpMap ("Normal map", 2D) = "bump" {}
  26. _BumpOutline ("Bump Outline", Range(0,1)) = 0
  27. _BumpFace ("Bump Face", Range(0,1)) = 0
  28. _ReflectFaceColor ("Reflection Color", Color) = (0,0,0,1)
  29. _ReflectOutlineColor("Reflection Color", Color) = (0,0,0,1)
  30. _Cube ("Reflection Cubemap", Cube) = "black" { /* TexGen CubeReflect */ }
  31. _EnvMatrixRotation ("Texture Rotation", vector) = (0, 0, 0, 0)
  32. [HDR]_UnderlayColor ("Border Color", Color) = (0,0,0, 0.5)
  33. _UnderlayOffsetX ("Border OffsetX", Range(-1,1)) = 0
  34. _UnderlayOffsetY ("Border OffsetY", Range(-1,1)) = 0
  35. _UnderlayDilate ("Border Dilate", Range(-1,1)) = 0
  36. _UnderlaySoftness ("Border Softness", Range(0,1)) = 0
  37. [HDR]_GlowColor ("Color", Color) = (0, 1, 0, 0.5)
  38. _GlowOffset ("Offset", Range(-1,1)) = 0
  39. _GlowInner ("Inner", Range(0,1)) = 0.05
  40. _GlowOuter ("Outer", Range(0,1)) = 0.05
  41. _GlowPower ("Falloff", Range(1, 0)) = 0.75
  42. _WeightNormal ("Weight Normal", float) = 0
  43. _WeightBold ("Weight Bold", float) = 0.5
  44. _ShaderFlags ("Flags", float) = 0
  45. _ScaleRatioA ("Scale RatioA", float) = 1
  46. _ScaleRatioB ("Scale RatioB", float) = 1
  47. _ScaleRatioC ("Scale RatioC", float) = 1
  48. _MainTex ("Font Atlas", 2D) = "white" {}
  49. _TextureWidth ("Texture Width", float) = 512
  50. _TextureHeight ("Texture Height", float) = 512
  51. _GradientScale ("Gradient Scale", float) = 5.0
  52. _ScaleX ("Scale X", float) = 1.0
  53. _ScaleY ("Scale Y", float) = 1.0
  54. _PerspectiveFilter ("Perspective Correction", Range(0, 1)) = 0.875
  55. _Sharpness ("Sharpness", Range(-1,1)) = 0
  56. _VertexOffsetX ("Vertex OffsetX", float) = 0
  57. _VertexOffsetY ("Vertex OffsetY", float) = 0
  58. _MaskCoord ("Mask Coordinates", vector) = (0, 0, 32767, 32767)
  59. _ClipRect ("Clip Rect", vector) = (-32767, -32767, 32767, 32767)
  60. _MaskSoftnessX ("Mask SoftnessX", float) = 0
  61. _MaskSoftnessY ("Mask SoftnessY", float) = 0
  62. _StencilComp ("Stencil Comparison", Float) = 8
  63. _Stencil ("Stencil ID", Float) = 0
  64. _StencilOp ("Stencil Operation", Float) = 0
  65. _StencilWriteMask ("Stencil Write Mask", Float) = 255
  66. _StencilReadMask ("Stencil Read Mask", Float) = 255
  67. _CullMode ("Cull Mode", Float) = 0
  68. _ColorMask ("Color Mask", Float) = 15
  69. }
  70. SubShader {
  71. Tags
  72. {
  73. "Queue" = "Transparent"
  74. "IgnoreProjector" = "True"
  75. "RenderType" = "Transparent"
  76. }
  77. Stencil
  78. {
  79. Ref[_Stencil]
  80. Comp[_StencilComp]
  81. Pass[_StencilOp]
  82. ReadMask[_StencilReadMask]
  83. WriteMask[_StencilWriteMask]
  84. }
  85. Cull[_CullMode]
  86. ZWrite Off
  87. Lighting Off
  88. Fog { Mode Off }
  89. ZTest[unity_GUIZTestMode]
  90. Blend One OneMinusSrcAlpha
  91. ColorMask[_ColorMask]
  92. Pass {
  93. CGPROGRAM
  94. #pragma target 3.0
  95. #pragma vertex VertShader
  96. #pragma fragment PixShader
  97. #pragma shader_feature __ BEVEL_ON
  98. #pragma shader_feature __ UNDERLAY_ON UNDERLAY_INNER
  99. #pragma shader_feature __ GLOW_ON
  100. #pragma shader_feature __ FORCE_LINEAR
  101. #pragma multi_compile __ UNITY_UI_CLIP_RECT
  102. #pragma multi_compile __ UNITY_UI_ALPHACLIP
  103. #include "UnityCG.cginc"
  104. #include "UnityUI.cginc"
  105. #include "TMPro_Properties.cginc"
  106. #include "TMPro.cginc"
  107. struct vertex_t {
  108. UNITY_VERTEX_INPUT_INSTANCE_ID
  109. float4 position : POSITION;
  110. float3 normal : NORMAL;
  111. float4 color : COLOR;
  112. float2 texcoord0 : TEXCOORD0;
  113. float2 texcoord1 : TEXCOORD1;
  114. };
  115. struct pixel_t {
  116. UNITY_VERTEX_INPUT_INSTANCE_ID
  117. UNITY_VERTEX_OUTPUT_STEREO
  118. float4 position : SV_POSITION;
  119. float4 color : COLOR;
  120. float2 atlas : TEXCOORD0;
  121. float weight : TEXCOORD1;
  122. float2 mask : TEXCOORD2; // Position in object space(xy)
  123. float3 viewDir : TEXCOORD3;
  124. #if (UNDERLAY_ON || UNDERLAY_INNER)
  125. float2 texcoord2 : TEXCOORD4;
  126. float4 underlayColor : COLOR1;
  127. #endif
  128. float4 textures : TEXCOORD5;
  129. };
  130. // Used by Unity internally to handle Texture Tiling and Offset.
  131. float4 _FaceTex_ST;
  132. float4 _OutlineTex_ST;
  133. float4 SRGBToLinear(float4 rgba) {
  134. return float4(lerp(rgba.rgb / 12.92f, pow((rgba.rgb + 0.055f) / 1.055f, 2.4f), step(0.04045f, rgba.rgb)), rgba.a);
  135. }
  136. pixel_t VertShader(vertex_t input)
  137. {
  138. pixel_t output;
  139. UNITY_INITIALIZE_OUTPUT(pixel_t, output);
  140. UNITY_SETUP_INSTANCE_ID(input);
  141. UNITY_TRANSFER_INSTANCE_ID(input,output);
  142. UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(output);
  143. float bold = step(input.texcoord1.y, 0);
  144. float4 vert = input.position;
  145. vert.x += _VertexOffsetX;
  146. vert.y += _VertexOffsetY;
  147. float4 vPosition = UnityObjectToClipPos(vert);
  148. float weight = lerp(_WeightNormal, _WeightBold, bold) / 4.0;
  149. weight = (weight + _FaceDilate) * _ScaleRatioA * 0.5;
  150. #if (UNDERLAY_ON || UNDERLAY_INNER)
  151. float4 underlayColor = _UnderlayColor;
  152. underlayColor.rgb *= underlayColor.a;
  153. float x = -(_UnderlayOffsetX * _ScaleRatioC) * _GradientScale / _TextureWidth;
  154. float y = -(_UnderlayOffsetY * _ScaleRatioC) * _GradientScale / _TextureHeight;
  155. float2 bOffset = float2(x, y);
  156. #endif
  157. // Generate UV for the Masking Texture
  158. float4 clampedRect = clamp(_ClipRect, -2e10, 2e10);
  159. // Support for texture tiling and offset
  160. float2 textureUV = UnpackUV(input.texcoord1.x);
  161. float2 faceUV = TRANSFORM_TEX(textureUV, _FaceTex);
  162. float2 outlineUV = TRANSFORM_TEX(textureUV, _OutlineTex);
  163. float4 color = input.color;
  164. #if (FORCE_LINEAR && !UNITY_COLORSPACE_GAMMA)
  165. color = SRGBToLinear(input.color);
  166. #endif
  167. output.position = vPosition;
  168. output.color = color;
  169. output.atlas = input.texcoord0;
  170. output.weight = weight;
  171. output.mask = half2(vert.xy * 2 - clampedRect.xy - clampedRect.zw);
  172. output.viewDir = mul((float3x3)_EnvMatrix, _WorldSpaceCameraPos.xyz - mul(unity_ObjectToWorld, vert).xyz);
  173. #if (UNDERLAY_ON || UNDERLAY_INNER)
  174. output.texcoord2 = input.texcoord0 + bOffset;
  175. output.underlayColor = underlayColor;
  176. #endif
  177. output.textures = float4(faceUV, outlineUV);
  178. return output;
  179. }
  180. fixed4 PixShader(pixel_t input) : SV_Target
  181. {
  182. UNITY_SETUP_INSTANCE_ID(input);
  183. float c = tex2D(_MainTex, input.atlas).a;
  184. float2 pixelSize = float2(ddx(input.atlas.y), ddy(input.atlas.y));
  185. pixelSize *= _TextureWidth * .75;
  186. float scale = rsqrt(dot(pixelSize, pixelSize)) * _GradientScale * (_Sharpness + 1);
  187. float weight = input.weight;
  188. float bias = (.5 - weight) + (.5 / scale);
  189. float sd = (bias - c) * scale;
  190. float outline = (_OutlineWidth * _ScaleRatioA) * scale;
  191. float softness = (_OutlineSoftness * _ScaleRatioA) * scale;
  192. half4 faceColor = _FaceColor;
  193. half4 outlineColor = _OutlineColor;
  194. faceColor.rgb *= input.color.rgb;
  195. faceColor *= tex2D(_FaceTex, input.textures.xy + float2(_FaceUVSpeedX, _FaceUVSpeedY) * _Time.y);
  196. outlineColor *= tex2D(_OutlineTex, input.textures.zw + float2(_OutlineUVSpeedX, _OutlineUVSpeedY) * _Time.y);
  197. faceColor = GetColor(sd, faceColor, outlineColor, outline, softness);
  198. #if BEVEL_ON
  199. float3 dxy = float3(0.5 / _TextureWidth, 0.5 / _TextureHeight, 0);
  200. float3 n = GetSurfaceNormal(input.atlas, weight, dxy);
  201. float3 bump = UnpackNormal(tex2D(_BumpMap, input.textures.xy + float2(_FaceUVSpeedX, _FaceUVSpeedY) * _Time.y)).xyz;
  202. bump *= lerp(_BumpFace, _BumpOutline, saturate(sd + outline * 0.5));
  203. n = normalize(n - bump);
  204. float3 light = normalize(float3(sin(_LightAngle), cos(_LightAngle), -1.0));
  205. float3 col = GetSpecular(n, light);
  206. faceColor.rgb += col * faceColor.a;
  207. faceColor.rgb *= 1 - (dot(n, light) * _Diffuse);
  208. faceColor.rgb *= lerp(_Ambient, 1, n.z * n.z);
  209. fixed4 reflcol = texCUBE(_Cube, reflect(input.viewDir, -n));
  210. faceColor.rgb += reflcol.rgb * lerp(_ReflectFaceColor.rgb, _ReflectOutlineColor.rgb, saturate(sd + outline * 0.5)) * faceColor.a;
  211. #endif
  212. #if (UNDERLAY_ON || UNDERLAY_INNER)
  213. float bScale = scale;
  214. bScale /= 1 + ((_UnderlaySoftness * _ScaleRatioC) * bScale);
  215. float bBias = (0.5 - weight) * bScale - 0.5 - ((_UnderlayDilate * _ScaleRatioC) * 0.5 * bScale);
  216. #endif
  217. #if UNDERLAY_ON
  218. float d = tex2D(_MainTex, input.texcoord2.xy).a * bScale;
  219. faceColor += input.underlayColor * saturate(d - bBias) * (1 - faceColor.a);
  220. #endif
  221. #if UNDERLAY_INNER
  222. float d = tex2D(_MainTex, input.texcoord2.xy).a * bScale;
  223. faceColor += input.underlayColor * (1 - saturate(d - bBias)) * saturate(1 - sd) * (1 - faceColor.a);
  224. #endif
  225. #if GLOW_ON
  226. float4 glowColor = GetGlowColor(sd, scale);
  227. faceColor.rgb += glowColor.rgb * glowColor.a;
  228. #endif
  229. // Alternative implementation to UnityGet2DClipping with support for softness.
  230. #if UNITY_UI_CLIP_RECT
  231. float2 maskZW = 0.25 / (0.25 * half2(_MaskSoftnessX, _MaskSoftnessY) + (1 / scale));
  232. half2 m = saturate((_ClipRect.zw - _ClipRect.xy - abs(input.mask.xy)) * maskZW);
  233. faceColor *= m.x * m.y;
  234. #endif
  235. #if UNITY_UI_ALPHACLIP
  236. clip(faceColor.a - 0.001);
  237. #endif
  238. return faceColor * input.color.a;
  239. }
  240. ENDCG
  241. }
  242. }
  243. Fallback "TextMeshPro/Mobile/Distance Field"
  244. CustomEditor "TMPro.EditorUtilities.TMP_SDFShaderGUI"
  245. }