{"id":1322,"date":"2022-06-30T18:48:22","date_gmt":"2022-06-30T10:48:22","guid":{"rendered":"https:\/\/www.mapleriver.cn\/?p=1322"},"modified":"2022-06-30T18:48:22","modified_gmt":"2022-06-30T10:48:22","slug":"shadertoy-wave","status":"publish","type":"post","link":"https:\/\/www.mapleriver.cn\/?p=1322","title":{"rendered":"ShaderToy &#8211; Wave"},"content":{"rendered":"<p>&emsp;\u00a0&emsp;<a href=\"https:\/\/www.shadertoy.com\/view\/4dsGzH\">ShaderToy\u5730\u5740<\/a><\/p>\n<h5>1.\u7ed8\u5236\u80cc\u666f<\/h5>\n<p>&emsp;\u00a0&emsp;\u5728\u8ba1\u7b97\u80cc\u666f\u65f6\uff0c\u4ee3\u7801\u4e2d\u4f7f\u7528\u4e86\u53d6\u4f59fmod\u51fd\u6570\u4e0estep\u51fd\u6570\uff1a<\/p>\n<ul>\n<li>mod \u53d6\u4f59\uff0c\u5728CG\u5185\u4f7f\u7528\u7684\u662ffmod\u51fd\u6570\uff0c\u6bd4\u5982fmod(1.5, 1.0) \u8fd4\u56de0.5<\/li>\n<li>step\u7528\u4e8e\u5927\u5c0f\u7684\u6bd4\u8f83\uff0cstep(a,x) : \u00a00 if x&lt;a; 1 if x&gt;=a; \u6bd4\u5982: step(1, 1.2), \u8fd4\u56de1; step(1, 0.8) \u8fd4\u56de0\uff1b<\/li>\n<\/ul>\n<p>&emsp;\u00a0&emsp;\u6211\u4eec\u5148\u628a\u80cc\u666f\u7ed8\u5236\u6539\u9020\u6210Unity\u53ef\u4ee5\u4f7f\u7528\u7684\u4ee3\u7801\u653e\u8fdb\u53bb\u770b\u770b\uff1a<\/p>\n<pre><code class=\"language-CG\">vec4 main(vec2 fragCoord) {\n    fixed3 COLOR1 = fixed3(0.0, 0.0, 0.3);\n    fixed3 COLOR2 = fixed3(0.5, 0.0, 0.0);\n    \/\/\u5c4f\u5e55\u5750\u6807\u6620\u5c04\u52300-1\u8303\u56f4\n    vec2 uv = fragCoord.xy \/ iResolution.xy;\n    \/\/\u7ed8\u5236\u80cc\u666f\n    vec3 final_color = vec3(1,1,1);\n    vec3 bg_color = vec3(0,0,0);\n    vec3 wave_color = vec3(0,0,0);\n\n    float c1 = fmod(uv.x, 2.0 * _BLOCK_WIDTH);\n    c1 = step(_BLOCK_WIDTH, c1);\n\n    float c2 = fmod(uv.y, 2.0 * _BLOCK_WIDTH);\n    c2 = step(_BLOCK_WIDTH, c2);\n\n    bg_color = mix(uv.x * COLOR1, uv.y * COLOR2, c1 * c2);\n    return float4(bg_color.rgb, 1);\n}<\/code><\/pre>\n<p>&emsp;\u00a0&emsp;\u53d6\u4f59\u64cd\u4f5c\u5176\u5b9e\u5c31\u662f\u628a\u80cc\u666f\u6309\u7167\u5bf9\u5e94\u65b9\u5411\u5207\u5272\u6210\u82e5\u5e72\u5c0f\u5757\u3002\u4ee5x\u8f74\u4e3a\u4f8b\uff0cuv\u7684\u8303\u56f4\u672c\u6765\u4e3a[0-1]\uff0c\u5f53_BLOCK_WIDTH\u4e3a0.1\u65f6\uff0c\u5c31\u662f\u5c06x\u65b9\u5411\u5207\u5272\u4e3a1\/\uff082 <em> 0.1\uff09=5\u4efd\u3002\u6bcf\u4efd\u7684\u8303\u56f4\u4e5f\u4ece[0-1]\u53d8\u6210\u4e86[0-0.2]\u3002<br \/>\n&emsp;\u00a0&emsp;step\u64cd\u4f5c\u628a\u539f\u6765\u8fde\u7eed\u7684[0-0.2]\u8303\u56f4\u8f6c\u6362\u4e3a0\u548c1\u7684\u4fe1\u53f7\uff0c\u4e5f\u5c31\u662f\u5f53c1\u53d6\u503c\u5728[0-0.1]\u65f6\u8fd4\u56de0\uff0c[0.1-0.2]\u65f6\u8fd4\u56de1\u3002<br \/>\n&emsp;\u00a0&emsp;mix\uff08lerp\uff09\u63d2\u503c\u4e3a\u80cc\u666f\u989d\u5916\u6dfb\u52a0\u4e86\u4e00\u4e2a\u989c\u8272\u6e10\u53d8\u7684\u6548\u679c\u3002<br \/>\n&emsp;\u00a0&emsp;\u5f53c1\u548cc2\u4e2d\u5b58\u5728\u4e00\u4e2a0\u65f6\uff0c\u8868\u793a\u6211\u4eec\u7ed8\u5236\u7684\u662f\u80cc\u666f\uff0c\u53d6\u503c\u5219\u4e3auv.x <\/em> color1\uff0c\u5176\u4e2dcolor1\u4ee3\u8868\u84dd\u8272\uff0c\u800cuv\u7684\u53d6\u503c\u662f[0-1]\uff0c\u800c\u4e14Unity\u7ed8\u5236\u7684\u539f\u70b9\u5728\u5de6\u4e0b\u89d2\uff0c\u6240\u4ee5\u5c31\u4f1a\u6709\u80cc\u666f\u7684\u5de6\u4fa7\u7684\u989c\u8272\u662f\u9ed1\u8272\uff08\u66f4\u504f\u54110\uff09\uff0c\u53f3\u4fa7\u989c\u8272\u662f\u84dd\u8272\uff08\u66f4\u504f\u5411color1\u76840.3\uff09\u3002<br \/>\n&emsp;\u00a0&emsp;c1\u548cc2\u90fd\u4e3a1\u65f6\u5219\u4e3a\u683c\u5b50\uff0c\u5bf9\u5e94\u53d6\u503c\u4e3auv.y * color2\uff0ccolor2\u4ee3\u8868\u7ea2\u8272\uff0c\u6240\u4ee5\u5c31\u4f1a\u6709\u683c\u5b50\u7684\u4e0b\u4fa7\u7684\u989c\u8272\u662f\u9ed1\u8272\uff08\u66f4\u504f\u54110\uff09\uff0c\u4e0a\u4fa7\u989c\u8272\u662f\u7ea2\u8272\uff08\u66f4\u504f\u5411color2\u76840.5\uff09\u3002<br \/>\n<a href=\"https:\/\/www.mapleriver.cn\/wp-content\/uploads\/2022\/06\/bg.png\"><img decoding=\"async\" src=\"https:\/\/www.mapleriver.cn\/wp-content\/uploads\/2022\/06\/bg.png\" alt=\"\" \/><\/a><\/p>\n<h5>2.\u7ed8\u5236\u7ebf<\/h5>\n<p>&emsp;\u00a0&emsp;\u5176\u5b9e\u76f4\u63a5\u628a\u5269\u4e0b\u7684\u6e90\u7801\u76f4\u63a5\u653e\u5230shader\u5185\u5c31\u53ef\u4ee5\u8fd8\u539f\u6548\u679c\u4e86\uff0c\u4f46\u662f\u4e3a\u4e86\u641e\u6e05\u695a\u4ee3\u7801\u91cc\u5230\u5e95\u641e\u4e86\u4ec0\u4e48\u64cd\u4f5c\uff0c\u6211\u4eec\u8fd8\u662f\u4e00\u6b65\u6b65\u6765\u8fd8\u539f\u6548\u679c\uff0c\u9996\u5148\u5148\u4ece\u7ed8\u5236\u4e00\u6761\u7ebf\u5f00\u59cb\uff1a<\/p>\n<pre><code class=\"language-CG\">float wave_width = 0.01;\nuv \u00a0= -1.0 + 2.0 * uv;\nwave_width = 1.0 \/ (150.0 * max(abs(uv.y), 0.0001));\nwave_color = vec3(wave_width * 1.9, wave_width, wave_width * 1.5);\n\nreturn float4(wave_color, 1);<\/code><\/pre>\n<p>&emsp;\u00a0&emsp;\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0c\u4f5c\u8005\u5bf9uv\u8fdb\u884c\u4e86\u4e00\u6b21\u6620\u5c04\uff0c\u539fuv\u7684\u8303\u56f4\u662f[0-1]\uff0c\u7ecf\u8fc7\u6620\u5c04\u540e\u65b0\u7684uv\u8303\u56f4\u53d8\u6210\u4e86[-1,1]\uff0c\u8fd9\u4e5f\u662f\u4e3a\u4e86\u540e\u9762\u8ba1\u7b97\u65b9\u4fbf\u5427\uff08\u5927\u6982\uff09\u3002<br \/>\n&emsp;\u00a0&emsp;\u63a5\u4e0b\u6765\u7684width\u8ba1\u7b97\u4e00\u5f00\u59cb\u8ba9\u6211\u6478\u4e0d\u5230\u5934\u8111\uff0c\u539f\u4ee3\u7801\u4f7f\u7528\u7684\u662f<code>wave_width = abs(1.0 \/ (50.0 * uv.y));<\/code>\uff0c\u4f46\u662f\u6211\u4e00\u7422\u78e8\u8fd9y\u7684\u8303\u56f4\u4e0d\u662f[-1-1]\u5417\uff1f\u90a3\u4e2d\u95f4\u4e0d\u5c31\u6709\u4e86\u4e00\u6b21\u96640\u7684\u64cd\u4f5c\u4e86\u5417\uff1f\u6240\u4ee5\u6211\u628a\u4ee3\u7801\u7a0d\u5fae\u6539\u4e86\u4e00\u4e0b\uff0c\u9632\u6b62\u4e86\u96640\u64cd\u4f5c\u3002\u8fd9\u4e2awidth\u8ba1\u7b97\u7ed3\u679c\u53d6\u503c\u8303\u56f4\u4e3a[0.0067-67]\uff0cy\u503c\u8d8a\u63a5\u8fd10\uff08\u5c4f\u5e55\u4e2d\u95f4\uff09\uff0c\u5219\u503c\u8d8a\u5927\u3002\u8fd9\u91cc\u7684150\u5176\u5b9e\u4e5f\u662f\u989c\u8272\u6539\u53d8\u7684\u6548\u7387\uff08\u5176\u5b9e\u8fd9\u4e2a150\u624d\u662f\u771f\u6b63\u5f71\u54cd\u7ebf\u6761\u5bbd\u5ea6\u7684\u503c\uff09\uff0c\u5728y\u503c\u53d8\u5316\u7387\u4fdd\u6301\u4e0d\u53d8\u65f6\uff0c\u8fd9\u4e2a\u503c\u8d8a\u5927\u7ed3\u679c\u5c31\u4f1a\u8d8a\u5c0f\u3002<br \/>\n&emsp;\u00a0&emsp;\u7136\u540e\u5c31\u662f\u4f7f\u7528\u8fd9\u4e2awidth\uff08\u6240\u4ee5\u8fd9\u4e2a\u6839\u672c\u5c31\u8ddf\u5bbd\u5ea6\u65e0\u5173\uff0c\u8fd9\u865a\u5047\u7684\u547d\u540d\uff01\uff09\u8ba1\u7b97\u6700\u7ec8\u7684\u989c\u8272\u503c\u3002\u56e0\u4e3ay\u8d8a\u9760\u8fd10\u8fd9\u4e2awidth\u503c\u8d8a\u5927\uff0c\u5bf9\u989c\u8272\u7684\u5f71\u54cd\u4e5f\u5c31\u8d8a\u5927\u3002\u6240\u4ee5\u5c4f\u5e55\u7684\u4e2d\u95f4\u5c31\u51fa\u73b0\u4e86\u4e00\u6761\u504f\u7ea2\u548c\u84dd\u7684\u4eae\u7ebf\uff0c\u800c\u8d8a\u8fdc\u79bb\u5c4f\u5e55\u4e2d\u5fc3\uff0c\u56e0\u4e3awidth\u503c\u592a\u5c0f\u4ee5\u81f3\u4e8e\u65e0\u6cd5\u88ab\u6211\u4eec\u611f\u77e5\u989c\u8272\u53d8\u5316\u3002<br \/>\n<a href=\"https:\/\/www.mapleriver.cn\/wp-content\/uploads\/2022\/06\/waveLine.png\"><img decoding=\"async\" src=\"https:\/\/www.mapleriver.cn\/wp-content\/uploads\/2022\/06\/waveLine.png\" alt=\"\" \/><\/a><\/p>\n<h5>3.\u52a0\u4e0a\u65f6\u95f4\u548c\u5468\u671f\u51fd\u6570<\/h5>\n<p>&emsp;\u00a0&emsp;\u63a5\u4e0b\u6765\u5c31\u8ba9\u6211\u4eec\u76f4\u63a5\u628a\u6548\u679c\u8865\u5168\u6dfb\u52a0\u4e0a\u5bf9\u5e94\u7684\u5468\u671f\u51fd\u6570\u548c\u65f6\u95f4\u53d8\u91cf\u5427\uff01<\/p>\n<pre><code class=\"language-CG\">float wave_width = 0.01;\nuv \u00a0= -1.0 + 2.0 * uv;\nuv.y += 0.1;\nfor(float i = 0.0; i &lt; 10.0; i++) {\n    uv.y += (0.07 * sin(uv.x + i\/7.0 + _Time.y ));\n    wave_width = abs(1.0 \/ (150.0 * max(abs(uv.y), 0.0001)));\n    wave_color += vec3(wave_width * 1.9, wave_width, wave_width * 1.5);\n}\n\nreturn float4(wave_color, 1);<\/code><\/pre>\n<p>&emsp;\u00a0&emsp;\u65e2\u7136\u753b\u4e00\u6761\u7ebf\u662f\u6839\u636ey\u7684\u4f4d\u7f6e\u8ba1\u7b97\u989c\u8272\u8fdb\u884c\u53e0\u52a0\uff0c\u90a3\u4e48\u753b\u591a\u6761\u7ebf\u4e5f\u662f\u7c7b\u4f3c\u7684\u6548\u679c\uff0c\u6240\u4ee5\u8fd9\u91cc\u904d\u5386\u4e8610\u6b21\u8fdb\u884c\u4e8610\u6761\u7ebf\u989c\u8272\u7684\u53e0\u52a0\u3002<br \/>\n&emsp;\u00a0&emsp;\u4f17\u6240\u5468\u77e5\u5468\u671f\u51fd\u6570\u4e3ay=asin(\u03b8+\u03c6)\uff0c\u800c\u4e3a\u4e86\u9632\u6b62\u7ebf\u91cd\u53e0\uff0c\u8fd9\u91cc\u7ed9\u6bcf\u6761\u7ebf\u90fd\u52a0\u4e86\u4e00\u4e2a\u504f\u79fb\u91cf\u03c6\uff0c\u4e5f\u662f\u4e0ei\u76f8\u5173\u3002\u5176\u4e2d\u76840.07\u548c\/7\u90fd\u662f\u4e00\u4e9b\u4e3a\u4e86\u8ba9\u6548\u679c\u770b\u4e0a\u53bb\u66f4\u597d\u7684\u7406\u8bba\u503c\u3002<br \/>\n<div class=\"wp-gp-pp-container\" style=\"width: 550px; height: 362px\" data-width=\"550\" data-height=\"362\" data-media-id=\"1325\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.mapleriver.cn\/wp-content\/uploads\/2022\/06\/waveLine_gif_thumbnail.jpeg\" id=\"wp-gp-pp--id-1325--thumbnail\" class=\"wp-gp-pp-gif-thumbnail\" width=\"550\" height=\"362\" alt=\"\"><img loading=\"lazy\" decoding=\"async\" src=\"\" id=\"wp-gp-pp--id-13252833205647\" class=\"wp-gp-pp-gif\" width=\"550\" height=\"362\" alt=\"\"><div class=\"wp-gp-pp-overlay\"> <div class=\"wp-gp-pp-play-button\">GIF<\/div> <\/div> <\/div><\/p>\n<h5>4.\u6700\u7ec8\u6548\u679c\u4e0e\u6700\u7ec8\u4ee3\u7801<\/h5>\n<p>&emsp;\u00a0&emsp;\u6700\u7ec8\u4ee3\u7801<\/p>\n<pre><code class=\"language-CG\">Shader &quot;Shadertoy\/Wave&quot; {\n\u00a0 \u00a0 Properties{\n\u00a0 \u00a0 \u00a0 \u00a0 _Parameters(&quot;Circle Parameters&quot;, Vector) = (0.5, 0.5, 10, 0) \/\/ Center: (x, y), Radius: z\n\u00a0 \u00a0 \u00a0 \u00a0 _Color(&quot;Circle Color&quot;, Color) = (1, 1, 1, 1)\n\u00a0 \u00a0 \u00a0 \u00a0 _BackgroundColor(&quot;Background Color&quot;, Color) = (1, 1, 1, 1)\n\u00a0 \u00a0 \u00a0 \u00a0 _BLOCK_WIDTH(&quot;Block Width&quot;, float) = 0.01\n\u00a0 \u00a0 }\n\u00a0 \u00a0 \u00a0 \u00a0 CGINCLUDE\n#include &quot;UnityCG.cginc&quot; \u00a0\n#pragma target 3.0 \u00a0 \u00a0 \u00a0\n#define vec2 float2\n#define vec3 float3\n#define vec4 float4\n#define mat2 float2x2\n#define mat3 float3x3\n#define mat4 float4x4\n#define iGlobalTime _Time.y\n#define mod fmod\n#define mix lerp\n#define fract frac\n#define texture2D tex2D\n#define iResolution _ScreenParams\n#define gl_FragCoord ((_iParam.scrPos.xy\/_iParam.scrPos.w) * _ScreenParams.xy)\n#define PI2 6.28318530718\n#define pi 3.14159265358979\n#define halfpi (pi * 0.5)\n#define oneoverpi (1.0 \/ pi)\n\u00a0 \u00a0 \u00a0 \u00a0 float _BLOCK_WIDTH = 0.01;\n\u00a0 \u00a0 \u00a0 \u00a0 struct v2f {\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 float4 pos : SV_POSITION;\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 float4 scrPos : TEXCOORD0;\n\u00a0 \u00a0 \u00a0 \u00a0 };\n\u00a0 \u00a0 \u00a0 \u00a0 v2f vert(appdata_base v) {\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 v2f o;\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 o.pos = UnityObjectToClipPos(v.vertex);\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 o.scrPos = ComputeScreenPos(o.pos);\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 return o;\n\u00a0 \u00a0 \u00a0 \u00a0 }\n\u00a0 \u00a0 \u00a0 \u00a0 vec4 main(vec2 fragCoord);\n\u00a0 \u00a0 \u00a0 \u00a0 fixed4 frag(v2f _iParam) : COLOR0{\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 vec2 fragCoord = gl_FragCoord;\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 return main(gl_FragCoord);\n\u00a0 \u00a0 \u00a0 \u00a0 }\n\u00a0 \u00a0 \u00a0 \u00a0 vec4 main(vec2 fragCoord) {\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 fixed3 COLOR1 = fixed3(0.0, 0.0, 0.3);\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 fixed3 COLOR2 = fixed3(0.5, 0.0, 0.0);\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/\u5c4f\u5e55\u5750\u6807\u6620\u5c04\u52300-1\u8303\u56f4\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 vec2 uv = fragCoord.xy \/ iResolution.xy;\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/\u7ed8\u5236\u80cc\u666f\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 vec3 final_color = vec3(1,1,1);\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 vec3 bg_color = vec3(0,0,0);\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 vec3 wave_color = vec3(0,0,0);\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 float c1 = fmod(uv.x, 2.0 * _BLOCK_WIDTH);\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 c1 = step(_BLOCK_WIDTH, c1);\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 float c2 = fmod(uv.y, 2.0 * _BLOCK_WIDTH);\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 c2 = step(_BLOCK_WIDTH, c2);\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 bg_color = mix(uv.x * COLOR1, uv.y * COLOR2, c1 * c2);\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/ \u753b\u7ebf\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 float wave_width = 0.01;\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 uv \u00a0= -1.0 + 2.0 * uv;\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 uv.y += 0.1;\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 for(float i = 0.0; i &lt; 10.0; i++) {\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 uv.y += (0.07 * sin(uv.x + i\/7.0 + _Time.y ));\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 wave_width = abs(1.0 \/ (150.0 * max(abs(uv.y), 0.0001)));\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 wave_color += vec3(wave_width * 1.9, wave_width, wave_width * 1.5);\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 final_color = bg_color + wave_color;\n\u00a0 \u00a0 \u00a0 \u00a0\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 return float4(final_color, 1);\n\u00a0 \u00a0 \u00a0 \u00a0 }\n\u00a0 \u00a0 \u00a0 \u00a0 ENDCG\n\u00a0 \u00a0 \u00a0 \u00a0 SubShader{\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Pass {\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 CGPROGRAM\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 #pragma vertex vert \u00a0 \u00a0\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 #pragma fragment frag \u00a0 \u00a0\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 #pragma fragmentoption ARB_precision_hint_fastest \u00a0 \u00a0\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 ENDCG\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 }\n\u00a0 \u00a0 \u00a0 \u00a0 }\n\u00a0 \u00a0 \u00a0 \u00a0 FallBack Off\n}<\/code><\/pre>\n<p>&emsp;\u00a0&emsp;\u6700\u7ec8\u6548\u679c<br \/>\n<div class=\"wp-gp-pp-container\" style=\"width: 553px; height: 325px\" data-width=\"553\" data-height=\"325\" data-media-id=\"1327\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.mapleriver.cn\/wp-content\/uploads\/2022\/06\/finalWave_gif_thumbnail.jpeg\" id=\"wp-gp-pp--id-1327--thumbnail\" class=\"wp-gp-pp-gif-thumbnail\" width=\"553\" height=\"325\" alt=\"\"><img loading=\"lazy\" decoding=\"async\" src=\"\" id=\"wp-gp-pp--id-13272239350235\" class=\"wp-gp-pp-gif\" width=\"553\" height=\"325\" alt=\"\"><div class=\"wp-gp-pp-overlay\"> <div class=\"wp-gp-pp-play-button\">GIF<\/div> <\/div> <\/div><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&emsp;\u00a0&emsp;ShaderToy\u5730\u5740 1.\u7ed8\u5236\u80cc\u666f &emsp;\u00a0&emsp;\u5728\u8ba1\u7b97\u80cc\u666f\u65f6\uff0c\u4ee3\u7801\u4e2d 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