{"id":16687,"date":"2026-01-27T18:13:02","date_gmt":"2026-01-27T09:13:02","guid":{"rendered":"http:\/\/www.gisdeveloper.co.kr\/?p=16687"},"modified":"2026-01-27T18:18:46","modified_gmt":"2026-01-27T09:18:46","slug":"soft-min-max","status":"publish","type":"post","link":"http:\/\/www.gisdeveloper.co.kr\/?p=16687","title":{"rendered":"Soft Min\/Max"},"content":{"rendered":"<p>SDF\uc5d0\uc11c \ub450 \uac1c\uc758 Distance\ub97c \uc11e\uc744 \ub54c&#8230;.. \ud569\uc740 \ucd5c\uc18c\ub85c, \uad50\ucc28\ub294 \ucd5c\ub300\ub85c \uc5bb\uc744 \uc218 \uc788\ub2e4. \ud558\uc9c0\ub9cc \ub450 \uac1c\uc758 \uac70\ub9ac\uac00 \ub9cc\ub098\ub294 \uc9c0\uc810\uc5d0 \ub108\ubb34 \uce7c\ucc98\ub7fc \uc815\ud655\ud558\uba74 \ubcf4\uae30\uac00 \ub531\ub531\ud574 \ubcf4\uc774\ub294\ub370.. \uc608\ub97c \ub4e4\uc5b4 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"js\">\r\nmaterial.colorNode = Fn(([]) => {\r\n  const color = backgroundColor(0.015, BLACK, GRAY);\r\n\r\n  const st = uv().sub(.5);\r\n\r\n  const A = sdfHexagon(st.sub(vec2(-.1, -.13)), .25);\r\n  const B = sdfBox(st.sub(vec2(.1, .2)), vec2(.2, .2));\r\n\r\n  const D = min(A, B, 100);\r\n\r\n  color.assign(mix(RED, color, D.smoothstep(0, 0.0025)));\r\n  color.assign(mix(BLACK, color, D.abs().smoothstep(0.005, 0.0052)));\r\n\r\n  return vec4(color, 1);\r\n})();\r\n<\/pre>\n<p><img decoding=\"async\" src=\"http:\/\/www.gisdeveloper.co.kr\/wp-content\/uploads\/2026\/01\/\u1109\u1173\u110f\u1173\u1105\u1175\u11ab\u1109\u1163\u11ba-2026-01-27-18.12.23.png\" alt=\"\" width=\"600\" class=\"aligncenter size-full wp-image-16688\" \/><\/p>\n<p>\ub450 \uac1c\uc758 \uac70\ub9ac\uac00 \ub9cc\ub098\ub294 \uc9c0\uc810\uc744 \uc880\ub354 \ubd80\ub4dc\ub7fd\uac8c \ud45c\ud604\ud558\uae30 \uc704\ud574 Soft Min\/Max\ub97c \uc0ac\uc6a9\ud558\uba74 \ub418\ub294\ub370, \uba3c\uc800 Soft Min\uacfc Max\uc5d0 \ub300\ud55c \ud568\uc218\ub294 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"js\">\r\nconst softMax = \/*@__PURE__*\/ Fn(([a, b, k]) => {\r\n  return log(exp(k.mul(a)).add(exp(k.mul(b)))).div(k);\r\n}, { a: 'float', b: 'float', k: 'float', return: 'float' });\r\n\r\nconst softMin = \/*@__PURE__*\/ Fn(([a, b, k]) => {\r\n  return softMax(a.negate(), b.negate(), k).negate();\r\n}, { a: 'float', b: 'float', k: 'float', return: 'float' });\r\n<\/pre>\n<p>\uc55e\uc11c\ubd24\ub358 \uc608\uc81c \ucf54\ub4dc\uc5d0 \uc704\uc758 Soft Min\ub97c \uc801\uc6a9\ud55c \ucf54\ub4dc\ub294 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"js\">\r\nmaterial.colorNode = Fn(([]) => {\r\n  const color = backgroundColor(0.015, BLACK, GRAY);\r\n\r\n  const st = uv().sub(.5);\r\n\r\n  const A = sdfHexagon(st.sub(vec2(-.1, -.13)), .25);\r\n  const B = sdfBox(st.sub(vec2(.1, .2)), vec2(.2, .2));\r\n\r\n  const D = softMin(A, B, 80);\r\n\r\n  color.assign(mix(RED, color, D.smoothstep(0, 0.0025)));\r\n  color.assign(mix(BLACK, color, D.abs().smoothstep(0.005, 0.0052)));\r\n\r\n  return vec4(color, 1);\r\n})();\r\n<\/pre>\n<p><img decoding=\"async\" src=\"http:\/\/www.gisdeveloper.co.kr\/wp-content\/uploads\/2026\/01\/\u1109\u1173\u110f\u1173\u1105\u1175\u11ab\u1109\u1163\u11ba-2026-01-27-18.16.07.png\" alt=\"\" width=\"600\" class=\"aligncenter size-full wp-image-16692\" \/><\/p>\n<p>\ub05d\uc73c\ub85c \uc774\uc640 \uad00\ub828\ub41c \ub610 \ub2e4\ub978 Soft Min, Max\uc5d0 \ub300\ud55c \uae00\uc740 \uc544\ub798\ub97c \ucc38\uc870\ud558\uc790.<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"aHHXs0x4OD\"><p><a href=\"http:\/\/www.gisdeveloper.co.kr\/?p=15995\">2\uac1c\uc758 \ubaa8\uc591 \ud568\uc218\ub97c smooth\ud558\uac8c \uc11e\ub294 \ubc29\ubc95(smooth min\/max)<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;2\uac1c\uc758 \ubaa8\uc591 \ud568\uc218\ub97c smooth\ud558\uac8c \uc11e\ub294 \ubc29\ubc95(smooth min\/max)&#8221; &#8212; GIS Developer\" src=\"http:\/\/www.gisdeveloper.co.kr\/?p=15995&#038;embed=true#?secret=gJmWYJAe3v#?secret=aHHXs0x4OD\" data-secret=\"aHHXs0x4OD\" width=\"525\" height=\"296\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>SDF\uc5d0\uc11c \ub450 \uac1c\uc758 Distance\ub97c \uc11e\uc744 \ub54c&#8230;.. \ud569\uc740 \ucd5c\uc18c\ub85c, \uad50\ucc28\ub294 \ucd5c\ub300\ub85c \uc5bb\uc744 \uc218 \uc788\ub2e4. \ud558\uc9c0\ub9cc \ub450 \uac1c\uc758 \uac70\ub9ac\uac00 \ub9cc\ub098\ub294 \uc9c0\uc810\uc5d0 \ub108\ubb34 \uce7c\ucc98\ub7fc \uc815\ud655\ud558\uba74 \ubcf4\uae30\uac00 \ub531\ub531\ud574 \ubcf4\uc774\ub294\ub370.. \uc608\ub97c \ub4e4\uc5b4 \ub2e4\uc74c\uacfc \uac19\ub2e4. material.colorNode = Fn(([]) => { const color = backgroundColor(0.015, BLACK, GRAY); const st = uv().sub(.5); const A = sdfHexagon(st.sub(vec2(-.1, -.13)), .25); const B = sdfBox(st.sub(vec2(.1, .2)), &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/www.gisdeveloper.co.kr\/?p=16687\" class=\"more-link\">\ub354 \ubcf4\uae30<span class=\"screen-reader-text\"> &#8220;Soft Min\/Max&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[153,145,139],"tags":[],"class_list":["post-16687","post","type-post","status-publish","format-standard","hentry","category-shader","category-three-js","category-webgl"],"_links":{"self":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/16687","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=16687"}],"version-history":[{"count":7,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/16687\/revisions"}],"predecessor-version":[{"id":16696,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/16687\/revisions\/16696"}],"wp:attachment":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16687"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16687"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16687"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}