{"id":9201,"date":"2023-02-27T19:15:43","date_gmt":"2023-02-27T10:15:43","guid":{"rendered":"https:\/\/minnano.app\/support\/?p=9201"},"modified":"2023-02-27T19:24:05","modified_gmt":"2023-02-27T10:24:05","slug":"env_pri_cat_52-58","status":"publish","type":"post","link":"https:\/\/minnano.app\/support\/2023\/02\/27\/env_pri_cat_52-58\/","title":{"rendered":"\u74b0\u5883\u539f\u732b 52\uff5e58\u65e5\u76ee"},"content":{"rendered":"\n

\u4eca\u56de\u306f\u3001\u30de\u30f3\u30c7\u30eb\u30d6\u30ed\u96c6\u5408<\/a>\u3092Transform Feedback\u3067\u9ad8\u901f\u63cf\u753b\u3059\u308b\u305f\u3081\u306e\u4e0b\u6e96\u5099\u3092\u884c\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

\u3053\u306e\u30da\u30fc\u30b8<\/a>\u3067\u30de\u30f3\u30c7\u30eb\u30d6\u30ed\u96c6\u5408\u3092\u624b\u8efd\u306b\u63cf\u753b\u3067\u304d\u308b\u3088\u3046\u306bWebGL2\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3068\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

\u904e\u53bb\u306b\u4f5c\u6210\u3057\u305fLIFEGAME LIGHTNING<\/a>\u306fWebGL1.0\u3067\u4f5c\u6210\u3057\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u3053\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3060\u3068Transform Feedback\u304c\u5229\u7528\u3067\u304d\u306a\u3044\u305f\u3081\u571f\u53f0\u90e8\u5206\u306e\u30b3\u30fc\u30c9\u3092WebGL2.0\u3067\u66f8\u304d\u76f4\u3057\u3001\u305d\u306e\u4e0a\u3067Transform Feedback\u306e\u57fa\u790e\u51e6\u7406\u3092\u5b9f\u88c5\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

\u4e2d\u6838\u3068\u306a\u308b\u30b3\u30fc\u30c9(\u6982\u7565)\u306f\u4ee5\u4e0b\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n

\/\/ --- Transform Feedback ---\ngl.useProgram(this.shader_tf);\nthis.shader_tf.enableAttribute();\n\n\/\/ [\u5165\u529b] VBO \u306e\u30d0\u30a4\u30f3\u30c9\ngl.bindBuffer(gl.ARRAY_BUFFER, this.vID);\ngl.vertexAttribPointer(this.shader_tf[\"aVertexPosition\"], this.v.itemSize, gl.FLOAT, false, 0, 0);\n\n\/\/ [\u51fa\u529b] \u66f8\u304d\u8fbc\u307f\u5148\u306e VBO \u3092\u30d0\u30a4\u30f3\u30c9\ngl.bindBufferBase(gl.TRANSFORM_FEEDBACK_BUFFER, 0, this.tf_rID);\ngl.bindBufferBase(gl.TRANSFORM_FEEDBACK_BUFFER, 1, this.tf_iID);\ngl.bindBufferBase(gl.TRANSFORM_FEEDBACK_BUFFER, 2, this.tf_cID);\n\ngl.enable(gl.RASTERIZER_DISCARD);\ngl.beginTransformFeedback(gl.POINTS);\n\n\/\/ \u5b9f\u884c\ngl.drawArrays(gl.POINTS, 0, this.points);\n\ngl.disable(gl.RASTERIZER_DISCARD);\ngl.endTransformFeedback();\n\n\/\/ \u30c6\u30b9\u30c8\u51fa\u529b        \n\/\/const view = new Float32Array(this.points);\n\/\/gl.bindBufferBase(gl.TRANSFORM_FEEDBACK_BUFFER, 2, this.tf_cID);\n\/\/gl.getBufferSubData(gl.TRANSFORM_FEEDBACK_BUFFER, 0, view);\n\/\/console.log(view);\n\nthis.shader_tf.disableAttribute();\n\ngl.bindBufferBase(gl.TRANSFORM_FEEDBACK_BUFFER, 0, null);\ngl.bindBufferBase(gl.TRANSFORM_FEEDBACK_BUFFER, 1, null);\ngl.bindBufferBase(gl.TRANSFORM_FEEDBACK_BUFFER, 2, null);<\/code><\/pre>\n\n\n\n
\u5165\u529b\u306b\u521d\u671f\u5ea7\u6a19\u3092\u3001\u51fa\u529b\u306b\u30de\u30f3\u30c7\u30eb\u30d6\u30ed\u96c6\u5408\u306e\u8a08\u7b97\u306b\u5fc5\u8981\u3068\u306a\u308b\u8907\u7d20\u6570\u306e\u8a08\u7b97\u7d50\u679c\u300c\u5b9f\u90e8\u300d\u3068\u300c\u865a\u90e8\u300d\u3068\u300c\u8a08\u7b97\u56de\u6570\u300d\u3092\u8a2d\u5b9a\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
Transform Feedback\u7528\u306e\u9802\u70b9\u30b7\u30a7\u30fc\u30c0\u306f\u3068\u308a\u3042\u3048\u305a\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
const POINT_VS_TF = '#version 300 es\\n\\\nin vec3 aVertexPosition;\\\n\\\nout float tf_real;\\\nout float tf_img;\\\nout float tf_count;\\\n\\\nvoid main(void) {\\\n    tf_real = 0.0;\\\n    tf_img = 0.0;\\\n    tf_count = 0.0 < aVertexPosition.x && 0.0 < aVertexPosition.y ? 1.0 : 0.0;\\\n    gl_Position = vec4(aVertexPosition, 1.0);\\\n}';<\/code><\/pre>\n\n\n\n
\u63cf\u753b\u7528\u306e\u9802\u70b9\u30b7\u30a7\u30fc\u30c0\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
const POINT_VS = '#version 300 es\\n\\\nin vec3 aVertexPosition;\\\nin vec3 aVertexColor;\\\nin float aVertexAlpha;\\\nin float tf_count;\\\n\\\nout vec4 vColor;\\\n\\\nuniform float uPointSize;\\\n\\\nuniform mat4 uMVMatrix;\\\nuniform mat4 uPMatrix;\\\n\\\nvoid main(void) {\\\n    vColor = vec4(aVertexColor, aVertexAlpha * tf_count);\\\n    gl_Position = uPMatrix * uMVMatrix * vec4(aVertexPosition, 1.0);\\\n    gl_PointSize = uPointSize;\\\n}';<\/code><\/pre>\n\n\n\n
\u63cf\u753b\u7528\u306e\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u30b7\u30a7\u30fc\u30c0\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3057\u3001\u5404\u70b9\u3092\u5186\u5f62\u306e\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u3067\u63cf\u753b\u3057\u3066\u3044\u307e\u3059<\/p>\n\n\n\n
const POINT_FS = '#version 300 es\\n\\\nprecision mediump float;\\\n\\\nin vec4 vColor;\\\nout vec4 outColor;\\\n\\\nvoid main(void) {\\\n    vec3 target;\\\n    target.xy = (gl_PointCoord - 0.5) * 2.0;\\\n    float r2 = target.x * target.x + target.y * target.y;\\\n    if (1.0 < r2) {\\\n        discard;\\\n    }\\\n    outColor = vec4(vColor.r, vColor.g, vColor.b, vColor.a * 0.4 * (1.0 - r2));\\\n}';<\/code><\/pre>\n\n\n\n
\u30c6\u30b9\u30c8\u3067\u3001Transform Feedback\u7528\u306e\u9802\u70b9\u30b7\u30a7\u30fc\u30c0\u3067\u306f\u3001\u5165\u529b\u5ea7\u6a19 x y \u304c\u5171\u306b 0\u4ee5\u4e0a \u306a\u3089\u3070 tf_count \u306b 1.0 \u3092\u51fa\u529b\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n
\n
\"\"<\/figure>\n<\/div>\n\n\n
\u898b\u4e8b\u306b\u30b7\u30a7\u30fc\u30c0\u3067\u306e\u8a08\u7b97\u7d50\u679c\u304c\u53cd\u6620\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
\u3061\u306a\u307f\u306b\u30d5\u30eb\u30b9\u30af\u30ea\u30fc\u30f3\u5207\u308a\u66ff\u3048\u51e6\u7406\u3084\u3001\u3061\u3087\u3063\u3068\u3057\u305f\u8a2d\u5b9a\u306e\u5207\u308a\u66ff\u3048\u6a5f\u80fd(\u4eca\u306e\u3068\u3053\u308dFPS\u306e\u8868\u793a\/\u975e\u8868\u793a\u3060\u3051)\u3082\u5b9f\u88c5\u3057\u307e\u3057\u305f\u3002\u4eca\u56de\u306f\u8d85\u304c\u3093\u3070\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
\u3042\u3068\u306fTransform Feedback\u7528\u306e\u9802\u70b9\u30b7\u30a7\u30fc\u30c0\u306b\u8907\u7d20\u6570\u306e\u8a08\u7b97\u3092\u8a18\u8ff0\u3057\u3001\u63cf\u753b\u7528\u306e\u30b7\u30a7\u30fc\u30c0\u3067\u89e3\u50cf\u5ea6\u3092\u4e0a\u3052\u3066\u3044\u3051\u3070\u30de\u30f3\u30c7\u30eb\u30d6\u30ed\u96c6\u5408\u306e\u753b\u50cf\u304c\u8868\u793a\u3055\u308c\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n\n\n\n
\u6b21\u306e\u9031<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\u4eca\u56de\u306f\u3001\u30de\u30f3\u30c7\u30eb\u30d6\u30ed\u96c6\u5408\u3092Transform Feedback\u3067\u9ad8\u901f\u63cf\u753b\u3059\u308b\u305f\u3081\u306e\u4e0b\u6e96\u5099\u3092\u884c\u3044\u307e\u3057\u305f\u3002 \u3053\u306e\u30da\u30fc\u30b8\u3067\u30de\u30f3\u30c7\u30eb\u30d6\u30ed\u96c6\u5408\u3092\u624b\u8efd\u306b\u63cf\u753b\u3067\u304d\u308b\u3088\u3046\u306bWebGL2\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3068\u3057\u307e\u3057\u305f\u3002 \u904e\u53bb\u306b\u4f5c\u6210\u3057\u305fLIFEG … \u7d9a\u304d\u3092\u8aad\u3080 \u74b0\u5883\u539f\u732b 52\uff5e58\u65e5\u76ee<\/span> →<\/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":[23],"tags":[],"class_list":["post-9201","post","type-post","status-publish","format-standard","hentry","category-23"],"_links":{"self":[{"href":"https:\/\/minnano.app\/support\/wp-json\/wp\/v2\/posts\/9201","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/minnano.app\/support\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/minnano.app\/support\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/minnano.app\/support\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/minnano.app\/support\/wp-json\/wp\/v2\/comments?post=9201"}],"version-history":[{"count":8,"href":"https:\/\/minnano.app\/support\/wp-json\/wp\/v2\/posts\/9201\/revisions"}],"predecessor-version":[{"id":9214,"href":"https:\/\/minnano.app\/support\/wp-json\/wp\/v2\/posts\/9201\/revisions\/9214"}],"wp:attachment":[{"href":"https:\/\/minnano.app\/support\/wp-json\/wp\/v2\/media?parent=9201"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/minnano.app\/support\/wp-json\/wp\/v2\/categories?post=9201"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/minnano.app\/support\/wp-json\/wp\/v2\/tags?post=9201"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}