{"id":28287,"date":"2023-07-05T05:02:55","date_gmt":"2023-01-11T11:09:32","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8openframeworks%e7%bb%98%e5%88%b6%e4%bd%93%e7%b4%a0%e4%b8%96%e7%95%8c%e3%80%82\/"},"modified":"2025-08-12T07:20:48","modified_gmt":"2025-08-11T23:20:48","slug":"%e4%bd%bf%e7%94%a8openframeworks%e7%bb%98%e5%88%b6%e4%bd%93%e7%b4%a0%e4%b8%96%e7%95%8c%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8openframeworks%e7%bb%98%e5%88%b6%e4%bd%93%e7%b4%a0%e4%b8%96%e7%95%8c%e3%80%82\/","title":{"rendered":"\u4f7f\u7528openFrameworks\u7ed8\u5236\u4f53\u7d20\u4e16\u754c"},"content":{"rendered":"

\u9996\u5148<\/p>\n
\"2022-05-02_16-11-45.png\"<\/p>\n

\u5f00\u53d1\u73af\u5883<\/p>\n
openFrameworks v0.11.2\r\nmacOS monterey 12.0.1\r\nXcode 13.2.1\r\n<\/code><\/pre>\n
\u6700\u5f00\u59cb\u7684\u6b65\u9aa4\u9996\u5148\uff0c\u6211\u5011\u5c07\u5617\u8a66\u4f7f\u7528oF\u6700\u521d\u63d0\u4f9b\u7684\u529f\u80fd\u4f86\u5be6\u73fe\u3002
\noF\u5df2\u7d93\u63d0\u4f9b\u4e86\u4e00\u500b\u540d\u70baofBox\u7684\u65b9\u6cd5\uff0c\u5c08\u9580\u7528\u65bc\u7e6a\u88fd\u7acb\u65b9\u9ad4\u3002<\/p>\n
\u203b\u4eca\u56de\u306e\u8a18\u4e8b\u306e\u672c\u7b4b\u3068\u306f\u3042\u307e\u308a\u95a2\u4fc2\u3057\u307e\u305b\u3093\u304c\u3001\u7c21\u5358\u306b\u66f8\u304f\u305f\u3081\u306b ofEasyCam \u3092\u4f7f\u7528\u3057\u307e\u3059\u3002
\n\u3053\u308c\u3092\u4f7f\u3046\u3068\u30de\u30a6\u30b9\u3067\u30b0\u30ea\u30b0\u30ea\u753b\u9762\u3092\u52d5\u304b\u3059\u3053\u3068\u304c\u3067\u304d\u3001
\n\u305d\u306e\u72b6\u614b\u306b\u304a\u3051\u308b\u5404\u7a2e\u884c\u5217\u306e\u5024\u304c\u30b7\u30a7\u30fc\u30c0\u30fc\u306euniform\u5909\u6570\u306b\u81ea\u52d5\u3067\u5272\u308a\u5f53\u3066\u3089\u308c\u307e\u3059\u3002<\/p>\n
#pragma once\r\n<\/span>\r\n#include<\/span> \"ofMain.h\"<\/span>\r\n\r\nclass<\/span> ofApp<\/span> :<\/span> public<\/span> ofBaseApp<\/span> {<\/span>\r\n public:<\/span>\r\n    \/\/ ~~~<\/span>\r\n private:<\/span>\r\n  ofEasyCam<\/span> m_camera<\/span>;<\/span>\r\n};<\/span>\r\n<\/code><\/pre>\n
\u6211\u4f1a\u5c1d\u8bd5\u4f7f\u7528\u4e09\u91cd\u5faa\u73af\u8fdb\u884c\u5927\u91cf\u76d2\u5b50\u7684\u7ed8\u5236\u3002<\/p>\n
#include<\/span> \"ofApp.h\"<\/span>\r\n\r\n\/\/--------------------------------------------------------------<\/span>\r\nvoid<\/span> ofApp<\/span>::<\/span>draw<\/span>()<\/span> {<\/span>\r\n  glDisable<\/span>(<\/span>GL_CULL_FACE<\/span>);<\/span>\r\n  \/\/ FPS\u306e\u63cf\u753b<\/span>\r\n  {<\/span>\r\n    char<\/span> buf<\/span>[<\/span>128<\/span>];<\/span>\r\n    ::<\/span>sprintf<\/span>(<\/span>buf<\/span>,<\/span> \"%.2f\"<\/span>,<\/span> ofGetFrameRate<\/span>());<\/span>\r\n    ofDrawBitmapString<\/span>(<\/span>buf<\/span>,<\/span> glm<\/span>::<\/span>vec2<\/span>(<\/span>50<\/span>,<\/span> 50<\/span>));<\/span>\r\n  }<\/span>\r\n  m_camera<\/span>.<\/span>begin<\/span>();<\/span>\r\n  \/\/ \u30ef\u30fc\u30eb\u30c9\u306e\u63cf\u753b<\/span>\r\n  glEnable<\/span>(<\/span>GL_CULL_FACE<\/span>);<\/span>\r\n  glCullFace<\/span>(<\/span>GL_BACK<\/span>);<\/span>\r\n  ofEnableDepthTest<\/span>();<\/span>\r\n  for<\/span> (<\/span>int<\/span> x<\/span> =<\/span> 0<\/span>;<\/span> x<\/span> <<\/span> 100<\/span>;<\/span> x<\/span> +=<\/span> 2<\/span>)<\/span> {<\/span>\r\n    for<\/span> (<\/span>int<\/span> y<\/span> =<\/span> 0<\/span>;<\/span> y<\/span> <<\/span> 100<\/span>;<\/span> y<\/span> +=<\/span> 2<\/span>)<\/span> {<\/span>\r\n      for<\/span> (<\/span>int<\/span> z<\/span> =<\/span> 0<\/span>;<\/span> z<\/span> <<\/span> 100<\/span>;<\/span> z<\/span> +=<\/span> 2<\/span>)<\/span> {<\/span>\r\n        ofBox<\/span>(<\/span>glm<\/span>::<\/span>vec3<\/span>(<\/span>x<\/span>,<\/span> y<\/span>,<\/span> z<\/span>),<\/span> 1.0<\/span>f<\/span>);<\/span>\r\n      }<\/span>\r\n    }<\/span>\r\n  }<\/span>\r\n  m_camera<\/span>.<\/span>end<\/span>();<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\"2022-05-01_12-51-58.png\"<\/p>\n
2. \u4f18\u5316\u6548\u679c\u6700\u4f73
\n\u4e3a\u4ec0\u4e48 ofBox \u5728\u6027\u80fd\u4e0a\u8868\u73b0\u4e0d\u4f73\u7684\u539f\u56e0\u53ef\u80fd\u662f\u56e0\u4e3a\u7ed8\u5236\u8c03\u7528\u8fc7\u591a\u3002
\n\u8ddf\u8e2a ofBox \u7684\u5b9e\u73b0\uff0c\u53ef\u4ee5\u627e\u5230 ofGLProgrammableRenderer#draw(const ofMesh & vertexData, ofPolyRenderMode renderType, bool useColors, bool useTextures, bool useNormals) \u8fd9\u4e2a\u65b9\u6cd5\uff0c
\n\u5728\u8fd9\u4e2a\u65b9\u6cd5\u4e2d\uff0cglDrawArrays \u6216\u8005 glDrawElements \u88ab\u8c03\u7528\u4e00\u6b21\u3002
\n\u6362\u53e5\u8bdd\u8bf4\uff0c\u4e4b\u524d\u7684\u4ee3\u7801\u4e2d\u8fd9\u4e2a\u7ed8\u5236\u547d\u4ee4\u88ab\u8c03\u7528\u4e8650^3\u6b21\u3002<\/p>\n
\u6211\u4eec\u5c06\u5728\u63a5\u4e0b\u6765\u7684\u4f18\u5316\u4e2d\u4f7f\u7528\u5b9e\u4f8b\u5316\u529f\u80fd\uff0c\u5c06\u8fd9\u4e2a\u7ed8\u56fe\u547d\u4ee4\u51cf\u5c11\u5230\u4e00\u6b21\u3002<\/p>\n
\u4f8b\u3048\u3070\u3042\u308b\u5f62\u72b6\u3092\u8907\u6570\u7b87\u6240\u306b\u63cf\u753b\u3059\u308b\u3068\u304d\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u65b9\u6cd5\u304c\u8003\u3048\u3089\u308c\u307e\u3059\u3002
\n(1) \u9802\u70b9\u81ea\u4f53\u3092\u8907\u88fd\u3057\u3001\u30aa\u30d5\u30bb\u30c3\u30c8\u3092\u52a0\u7b97\u3057\u305f\u5225\u306e\u9802\u70b9\u60c5\u5831\u3092\u4f5c\u6210\u3059\u308b
\n(2) uniform\u5909\u6570\u3068\u3057\u3066\u30aa\u30d5\u30bb\u30c3\u30c8\u3092\u53d7\u3051\u53d6\u308a\u3001\u79fb\u52d5\u3055\u305b\u308b
\n(3) \u30a4\u30f3\u30b9\u30bf\u30f3\u30b7\u30f3\u30b0\u3092\u4f7f\u7528\u3057\u3066\u30d9\u30fc\u30b9\u3068\u306a\u308b\u9802\u70b9\u60c5\u5831\u306b\u52a0\u3048\u3066\u30aa\u30d5\u30bb\u30c3\u30c8\u3082\u53d7\u3051\u53d6\u308b<\/p>\n
(1)\u306f\u7d50\u5c40\u5225\u306e\u5834\u6240\u306b\u63cf\u753b\u3059\u308b\u305f\u3073\u306b\u9802\u70b9\u60c5\u5831\u3092\u30d0\u30a4\u30f3\u30c9\u3057\u76f4\u3055\u306a\u3051\u308c\u3070\u306a\u3089\u305a\u3001\u63cf\u753b\u56de\u6570\u306e\u524a\u6e1b\u304c\u3067\u304d\u307e\u305b\u3093\u3002
\n(2)\u306f\u5c11\u3057\u8fd1\u3044\u306e\u3067\u3059\u304c\u3053\u308c\u3060\u3051\u3060\u3068\u4e00\u3064\u5f62\u72b6\u3092\u63cf\u753b\u3059\u308b\u305f\u3073\u306b uniform\u5909\u6570 \u3092\u5272\u308a\u5f53\u3066\u76f4\u3055\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002
\n(3)\u304c\u4eca\u56de\u884c\u3046\u65b9\u6cd5\u3067\u3001\u9802\u70b9\u60c5\u5831\u306e attribute \u3068\u306f\u5225\u306b\u30aa\u30d5\u30bb\u30c3\u30c8\u306e\u305f\u3081\u306e attribute \u3082\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002
\n\u305f\u3060\u3057\u3001\u3053\u306e attribute \u306f\u9802\u70b9\u3068 1:1 \u3067\u5bfe\u5fdc\u3059\u308b\u914d\u5217\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002
\n\u30aa\u30d5\u30bb\u30c3\u30c8\u306e\u305f\u3081\u306e attribute \u306f\u4e00\u56de\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30d0\u30c3\u30d5\u30a1\u3092\u63cf\u753b\u3059\u308b\u305f\u3073\u306b\u6b21\u306e\u8981\u7d20\u306b\u9032\u3080\u30a4\u30e1\u30fc\u30b8\u3067\u3059\u3002
\n\u4f8b\u3048\u3070\u30d7\u30ec\u30fc\u30f3\u306f\u4e09\u89d2\u5f62\u4e8c\u3064\u3067\u63cf\u753b\u3067\u304d\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u9577\u3055\u306f6\u3067\u3059\u3002\u306a\u306e\u3067\u9802\u70b9\u306e attribute \u304c6\u56de\u9032\u3093\u3060\u5f8c\u30aa\u30d5\u30bb\u30c3\u30c8\u306e\u305f\u3081\u306e attribute \u304c1\u56de\u9032\u307f\u307e\u3059\u3002
\n\u3055\u3089\u306b\u8a00\u3046\u306a\u3089 Box \u306f Plane \u30926\u500b\u5f35\u308a\u5408\u308f\u305b\u305f\u3082\u306e\u306a\u306e\u3067\u3001\u3053\u308c\u3082\u4e8b\u524d\u306b\u30aa\u30d5\u30bb\u30c3\u30c8\u3068\u56de\u8ee2\u3092\u53d7\u3051\u53d6\u308c\u3070\u4e0a\u4e0b\u5de6\u53f3\u524d\u5f8c\u306b\u79fb\u52d5\u3067\u304d\u307e\u3059\u3002
\n\u305f\u3060\u3057\u3001\u3053\u3061\u3089\u306f vec3 \u306e attribute \u3067\u306f\u306a\u304f float \u306e attribute \u3068\u3057\u3066\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002
\n\u3053\u308c\u306b\u52a0\u3048\u3066 uniform\u5909\u6570 \u3068\u3057\u3066 vec3[6] \u3068 mat4[6] \u3092\u4e88\u3081\u53d7\u3051\u53d6\u3063\u3066\u304a\u304d\u3001\u30b7\u30a7\u30fc\u30c0\u5074\u3067\u9593\u63a5\u7684\u306b\u30aa\u30d5\u30bb\u30c3\u30c8\u3001\u56de\u8ee2\u60c5\u5831\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002
\n\u3053\u3046\u3059\u308b\u3068\u5358\u306b vec3 \u306e attribute \u3068\u3057\u3066\u53d7\u3051\u53d6\u308b\u3088\u308a\u3082\u30c7\u30fc\u30bf\u91cf\u3092\u524a\u6e1b\u3067\u304d\u307e\u3059\u3002
\n\u672c\u5f53\u306f float \u3067\u306f\u306a\u304f int \u3068\u3057\u3066\u5ba3\u8a00\u3057\u305f\u3044\u3068\u3053\u308d\u3067\u3059\u304c\u3001 attribute \u306e\u30c7\u30fc\u30bf\u578b\u3068\u3057\u3066 int \u306f\u4f7f\u7528\u3067\u304d\u306a\u3044\u3088\u3046\u3067\u3059\u3002<\/p>\n
\u6240\u4ee5\uff0c\u5b9e\u9645\u4e0a\u4f7f\u7528\u7684OpenGL\u547d\u4ee4\u6709\u4ee5\u4e0b\u4e24\u4e2a\u3002<\/p>\n
glVertexAttribDivisor\u51fd\u6570\u53ef\u4ee5\u6307\u5b9a\u4e0e\u9876\u70b9\u4e0d\u662f\u4e00\u5bf9\u4e00\u5bf9\u5e94\u7684\u5c5e\u6027\u3002<\/p>\n
\/\/ index \u5bfe\u5fdc\u3059\u308b attribute \u306e\u756a\u53f7<\/span>\r\n\/\/ divisor \u6050\u3089\u304f\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30d0\u30c3\u30d5\u30a1\u4e00\u56de\u306b\u3064\u304d\u4f55\u56de attribute \u3092\u9032\u3081\u308b\u304b\uff1f<\/span>\r\nvoid<\/span> glVertexAttribDivisor<\/span>(<\/span>\r\n    GLuint<\/span> index<\/span>,<\/span>\r\n \tGLuint<\/span> divisor<\/span>\r\n);<\/span>\r\n<\/code><\/pre>\n
\u4f7f\u7528glDrawElementsInstanced\u65b9\u6cd5\uff0c\u53ef\u4ee5\u4e00\u6b21\u8c03\u7528\u5e76\u753b\u51fa\u6307\u5b9a\u6570\u91cf\u7684\u5f62\u72b6\uff0c\u6570\u91cf\u7531instancecount\u53c2\u6570\u6307\u5b9a\u3002<\/p>\n
\/\/ mode \u9802\u70b9\u306e\u7d50\u3073\u65b9\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002GL_TRIANGLES\u306a\u3069<\/span>\r\n\/\/ count \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30d0\u30c3\u30d5\u30a1\u306e\u9577\u3055\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/span>\r\n\/\/ type \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30d0\u30c3\u30d5\u30a1\u306e\u578b\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002 GL_UNSIGNED_SHORT\u306a\u3069<\/span>\r\n\/\/ indices \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30d0\u30c3\u30d5\u30a1\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002glBind\u3067\u4e8b\u524d\u306b\u30d0\u30a4\u30f3\u30c9\u3057\u3066\u3042\u308b\u306a\u3089\u3053\u3053\u306f nullptr \u3067OK<\/span>\r\n\/\/ instancecount \u4f55\u56de\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30d0\u30c3\u30d5\u30a1\u3092\u63cf\u753b\u3059\u308b\u304b\u3002\u4f8b\u3048\u3070\u56db\u89d2\u5f62\u3092\u4e8c\u3064\u63cf\u753b\u3059\u308b\u306a\u3089 count=6, instancecount=2 \u3068\u306a\u308b<\/span>\r\nvoid<\/span> glDrawElementsInstanced<\/span>(<\/span>\r\n    GLenum<\/span> mode<\/span>,<\/span>\r\n \tGLsizei<\/span> count<\/span>,<\/span>\r\n \tGLenum<\/span> type<\/span>,<\/span>\r\n \tconst<\/span> void<\/span> *<\/span> indices<\/span>,<\/span>\r\n \tGLsizei<\/span> instancecount<\/span>\r\n);<\/span>\r\n<\/code><\/pre>\n
3. \u7740\u8272\u5668
\n\u57fa\u4e8e\u4ee5\u4e0a\u5185\u5bb9\uff0c\u4ee5\u4e0b\u662f\u63d0\u53d6\u7684\u7740\u8272\u5668\u4f7f\u7528\uff1a
\n\u5c5e\u6027\u5b9a\u4e49\u572810\u300111\u300112\u4e2d\uff0c\u8fd9\u4e9b\u5c5e\u6027\u662f\u524d\u9762\u63d0\u5230\u7684\u5c5e\u6027\u3002
\n\uff080\u301c4\u88abopenFrameworks\u4fdd\u7559\u7528\u4e8e\u9876\u70b9\u4fe1\u606f\uff0c\u53ea\u8981\u4e0d\u4e0e\u5176\u51b2\u7a81\uff0c\u53ef\u4ee5\u4f7f\u7528\u4efb\u4f55\u7f16\u53f7\uff09
\n13\u662f\u4e0d\u5fc5\u8981\u7684\uff0c\u4f46\u4e3a\u4e86\u8c03\u8bd5\u800c\u5b9a\u4e49\uff0c\u7528\u4e8e\u6bcf\u4e2a\u9762\u7684\u989c\u8272\u53d8\u5316\u3002
\n\u203b\u7a0d\u540e\u5c06\u66f4\u6539\u4e3a\u4f7f\u7528\u7eb9\u7406\u3002<\/p>\n
\u9876\u70b9\u7740\u8272\u5668<\/p>\n
#version 410\r\n<\/span>layout<\/span>(<\/span>location<\/span>=<\/span>0<\/span>)<\/span> in<\/span> vec3<\/span> aVertex<\/span>;<\/span>\r\n\r\nlayout<\/span>(<\/span>location<\/span>=<\/span>10<\/span>)<\/span> in<\/span> vec3<\/span> aPosition<\/span>;<\/span>\r\nlayout<\/span>(<\/span>location<\/span>=<\/span>11<\/span>)<\/span> in<\/span> float<\/span> aLocalOffset<\/span>;<\/span>\r\nlayout<\/span>(<\/span>location<\/span>=<\/span>12<\/span>)<\/span> in<\/span> float<\/span> aLocalRotation<\/span>;<\/span>\r\nlayout<\/span>(<\/span>location<\/span>=<\/span>13<\/span>)<\/span> in<\/span> float<\/span> aPalleteColor<\/span>;<\/span>\r\nuniform<\/span> mat4<\/span> modelViewProjectionMatrix<\/span>;<\/span>\r\nuniform<\/span> vec3<\/span> localOffsetTable<\/span>[<\/span>6<\/span>];<\/span>\r\nuniform<\/span> mat4<\/span> localRotationTable<\/span>[<\/span>6<\/span>];<\/span>\r\nuniform<\/span> vec4<\/span> palletColorTable<\/span>[<\/span>10<\/span>];<\/span>\r\n\r\nout<\/span> vec4<\/span> color<\/span>;<\/span>\r\n\r\nmat4<\/span> translate<\/span>(<\/span>vec3<\/span> v<\/span>)<\/span> {<\/span>\r\n    return<\/span> mat4<\/span>(<\/span>\r\n        vec4<\/span>(<\/span>1<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>),<\/span>\r\n        vec4<\/span>(<\/span>0<\/span>,<\/span> 1<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>),<\/span>\r\n        vec4<\/span>(<\/span>0<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>,<\/span> 0<\/span>),<\/span>\r\n        vec4<\/span>(<\/span>v<\/span>,<\/span> 1<\/span>)<\/span>\r\n    );<\/span>\r\n}<\/span>\r\n\r\nvoid<\/span> main<\/span>(<\/span>void<\/span>)<\/span> {<\/span>\r\n    vec3<\/span> localOffset<\/span> =<\/span> localOffsetTable<\/span>[<\/span>int<\/span>(<\/span>aLocalOffset<\/span>)];<\/span>\r\n    mat4<\/span> localRotation<\/span> =<\/span> localRotationTable<\/span>[<\/span>int<\/span>(<\/span>aLocalRotation<\/span>)];<\/span>\r\n    vec3<\/span> position<\/span> =<\/span> aPosition<\/span> +<\/span> localOffset<\/span>;<\/span>\r\n    mat4<\/span> localTransform<\/span> =<\/span> translate<\/span>(<\/span>position<\/span>)<\/span> *<\/span> localRotation<\/span> *<\/span> translate<\/span>(<\/span>-<\/span>position<\/span>);<\/span>\r\n    mat4<\/span> MVP<\/span> =<\/span> (<\/span>modelViewProjectionMatrix<\/span> *<\/span> localTransform<\/span>);<\/span>\r\n    color<\/span> =<\/span> palletColorTable<\/span>[<\/span>int<\/span>(<\/span>aPalleteColor<\/span>)];<\/span>\r\n    gl_Position<\/span> =<\/span> MVP<\/span> *<\/span> vec4<\/span>(<\/span>aVertex<\/span> +<\/span> position<\/span>,<\/span> 1<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u50cf\u7d20\u7740\u8272\u5668<\/p>\n
#version 410\r\n<\/span>\r\nin<\/span> vec4<\/span> color<\/span>;<\/span>\r\nout<\/span> vec4<\/span> fragColor<\/span>;<\/span>\r\n\r\nvoid<\/span> main<\/span> (<\/span>void<\/span>)<\/span> {<\/span>\r\n    fragColor<\/span> =<\/span> color<\/span>;<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u7136\u540e\uff0c\u6211\u4eec\u5c06\u4f7f\u7528\u521a\u624d\u4ecb\u7ecd\u7684OpenGL\u6307\u4ee4\u521b\u5efa\u4e00\u4e2a\u80fd\u591f\u4e00\u6b21\u7ed8\u5236\u7684\u7c7b\u3002<\/p>\n
#pragma once\r\n#include<\/span> <ofMesh.h><\/span>\r\n#include<\/span> <ofShader.h><\/span>\r\n#include<\/span> <ofVbo.h><\/span>\r\n\r\nnamespace<\/span> ofBoxel<\/span> {<\/span>\r\nclass<\/span> BoxelRenderer<\/span> {<\/span>\r\n public:<\/span>\r\n  explicit<\/span> BoxelRenderer<\/span>(<\/span>ofShader<\/span> shader<\/span>,<\/span> const<\/span> ofMesh<\/span>&<\/span> mesh<\/span>,<\/span>\r\n                         float<\/span> offset<\/span> =<\/span> 0.5<\/span>f<\/span>);<\/span>\r\n  void<\/span> clear<\/span>();<\/span>\r\n  void<\/span> batch<\/span>(<\/span>const<\/span> glm<\/span>::<\/span>vec3<\/span>&<\/span> pos<\/span>,<\/span> int<\/span> localOffset<\/span>,<\/span> int<\/span> localRotation<\/span>,<\/span>\r\n             int<\/span> palletColor<\/span>);<\/span>\r\n  void<\/span> rehash<\/span>();<\/span>\r\n  void<\/span> render<\/span>();<\/span>\r\n\r\n private:<\/span>\r\n  void<\/span> setUniformMatrixArray<\/span>(<\/span>const<\/span> std<\/span>::<\/span>string<\/span>&<\/span> name<\/span>,<\/span>\r\n                             const<\/span> std<\/span>::<\/span>vector<\/span><<\/span>glm<\/span>::<\/span>mat4<\/span>>&<\/span> mvec<\/span>);<\/span>\r\n  void<\/span> setUniformVec3Array<\/span>(<\/span>const<\/span> std<\/span>::<\/span>string<\/span>&<\/span> name<\/span>,<\/span>\r\n                           const<\/span> std<\/span>::<\/span>vector<\/span><<\/span>glm<\/span>::<\/span>vec3<\/span>>&<\/span> vvec<\/span>);<\/span>\r\n  void<\/span> setUniformVec4Array<\/span>(<\/span>const<\/span> std<\/span>::<\/span>string<\/span>&<\/span> name<\/span>,<\/span>\r\n                           const<\/span> std<\/span>::<\/span>vector<\/span><<\/span>glm<\/span>::<\/span>vec4<\/span>>&<\/span> vvec<\/span>);<\/span>\r\n  ofShader<\/span> m_shader<\/span>;<\/span>\r\n  ofVbo<\/span> m_vbo<\/span>;<\/span>\r\n  bool<\/span> m_dirty<\/span>;<\/span>\r\n  std<\/span>::<\/span>vector<\/span><<\/span>glm<\/span>::<\/span>vec3<\/span>><\/span> m_attribPosition<\/span>;<\/span>\r\n  std<\/span>::<\/span>vector<\/span><<\/span>float<\/span>><\/span> m_attribLocalOffset<\/span>;<\/span>\r\n  std<\/span>::<\/span>vector<\/span><<\/span>float<\/span>><\/span> m_attribLocalRotation<\/span>;<\/span>\r\n  std<\/span>::<\/span>vector<\/span><<\/span>float<\/span>><\/span> m_attribPalletColor<\/span>;<\/span>\r\n};<\/span>\r\n}<\/span>  \/\/ namespace ofBoxel<\/span>\r\n<\/code><\/pre>\n
\u5b9e\u65bd<\/p>\n
#include<\/span> \"BoxelRenderer.hpp\"<\/span>\r\n\r\nnamespace<\/span> ofBoxel<\/span> {<\/span>\r\nBoxelRenderer<\/span>::<\/span>BoxelRenderer<\/span>(<\/span>ofShader<\/span> shader<\/span>,<\/span> const<\/span> ofMesh<\/span>&<\/span> mesh<\/span>,<\/span> float<\/span> offset<\/span>)<\/span>\r\n    :<\/span> m_shader<\/span>(<\/span>shader<\/span>),<\/span>\r\n      m_vbo<\/span>(),<\/span>\r\n      m_dirty<\/span>(<\/span>false<\/span>),<\/span>\r\n      m_attribPosition<\/span>(),<\/span>\r\n      m_attribLocalOffset<\/span>(),<\/span>\r\n      m_attribLocalRotation<\/span>(),<\/span>\r\n      m_attribPalletColor<\/span>()<\/span> {<\/span>\r\n  \/\/ \u9802\u70b9\u60c5\u5831\u306e\u8a2d\u5b9a<\/span>\r\n  const<\/span> auto<\/span>&<\/span> vertices<\/span> =<\/span> mesh<\/span>.<\/span>getVertices<\/span>();<\/span>\r\n  const<\/span> auto<\/span>&<\/span> normals<\/span> =<\/span> mesh<\/span>.<\/span>getNormals<\/span>();<\/span>\r\n  const<\/span> auto<\/span>&<\/span> index<\/span> =<\/span> mesh<\/span>.<\/span>getIndices<\/span>();<\/span>\r\n  const<\/span> auto<\/span>&<\/span> texCoords<\/span> =<\/span> mesh<\/span>.<\/span>getTexCoords<\/span>();<\/span>\r\n  m_vbo<\/span>.<\/span>setVertexData<\/span>(<\/span>vertices<\/span>.<\/span>data<\/span>(),<\/span> vertices<\/span>.<\/span>size<\/span>(),<\/span> GL_STATIC_DRAW<\/span>);<\/span>\r\n  m_vbo<\/span>.<\/span>setNormalData<\/span>(<\/span>normals<\/span>.<\/span>data<\/span>(),<\/span> normals<\/span>.<\/span>size<\/span>(),<\/span> GL_STATIC_DRAW<\/span>);<\/span>\r\n  m_vbo<\/span>.<\/span>setIndexData<\/span>(<\/span>index<\/span>.<\/span>data<\/span>(),<\/span> index<\/span>.<\/span>size<\/span>(),<\/span> GL_STATIC_DRAW<\/span>);<\/span>\r\n  m_vbo<\/span>.<\/span>setTexCoordData<\/span>(<\/span>texCoords<\/span>.<\/span>data<\/span>(),<\/span> texCoords<\/span>.<\/span>size<\/span>(),<\/span> GL_STATIC_DRAW<\/span>);<\/span>\r\n  \/\/ \u5404\u7a2e\u884c\u5217\u306e\u4f5c\u6210<\/span>\r\n  m_shader<\/span>.<\/span>begin<\/span>();<\/span>\r\n  setUniformVec3Array<\/span>(<\/span>\"localOffsetTable\"<\/span>,<\/span>\r\n                      std<\/span>::<\/span>vector<\/span><<\/span>glm<\/span>::<\/span>vec3<\/span>><\/span>{<\/span>\r\n                          glm<\/span>::<\/span>vec3<\/span>(<\/span>0.0<\/span>f<\/span>,<\/span> offset<\/span>,<\/span> 0.0<\/span>f<\/span>),<\/span>   \/\/ top<\/span>\r\n                          glm<\/span>::<\/span>vec3<\/span>(<\/span>0.0<\/span>f<\/span>,<\/span> -<\/span>offset<\/span>,<\/span> 0.0<\/span>f<\/span>),<\/span>  \/\/ bottom<\/span>\r\n                          glm<\/span>::<\/span>vec3<\/span>(<\/span>-<\/span>offset<\/span>,<\/span> 0.0<\/span>f<\/span>,<\/span> 0.0<\/span>f<\/span>),<\/span>  \/\/ left<\/span>\r\n                          glm<\/span>::<\/span>vec3<\/span>(<\/span>offset<\/span>,<\/span> 0.0<\/span>f<\/span>,<\/span> 0.0<\/span>f<\/span>),<\/span>   \/\/ right<\/span>\r\n                          glm<\/span>::<\/span>vec3<\/span>(<\/span>0.0<\/span>f<\/span>,<\/span> 0.0<\/span>f<\/span>,<\/span> offset<\/span>),<\/span>   \/\/ front<\/span>\r\n                          glm<\/span>::<\/span>vec3<\/span>(<\/span>0.0<\/span>f<\/span>,<\/span> 0.0<\/span>f<\/span>,<\/span> -<\/span>offset<\/span>),<\/span>  \/\/ back<\/span>\r\n                      });<\/span>\r\n  setUniformMatrixArray<\/span>(<\/span>\r\n      \"localRotationTable\"<\/span>,<\/span>\r\n      std<\/span>::<\/span>vector<\/span><<\/span>glm<\/span>::<\/span>mat4<\/span>><\/span>{<\/span>\r\n          glm<\/span>::<\/span>rotate<\/span>(<\/span>glm<\/span>::<\/span>radians<\/span>(<\/span>270.0<\/span>f<\/span>),<\/span> glm<\/span>::<\/span>vec3<\/span>(<\/span>1<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>)),<\/span>  \/\/ top<\/span>\r\n          glm<\/span>::<\/span>rotate<\/span>(<\/span>glm<\/span>::<\/span>radians<\/span>(<\/span>90.0<\/span>f<\/span>),<\/span> glm<\/span>::<\/span>vec3<\/span>(<\/span>1<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>)),<\/span>   \/\/ bottom<\/span>\r\n          glm<\/span>::<\/span>rotate<\/span>(<\/span>glm<\/span>::<\/span>radians<\/span>(<\/span>270.0<\/span>f<\/span>),<\/span> glm<\/span>::<\/span>vec3<\/span>(<\/span>0<\/span>,<\/span> 1<\/span>,<\/span> 0<\/span>)),<\/span>  \/\/ left<\/span>\r\n          glm<\/span>::<\/span>rotate<\/span>(<\/span>glm<\/span>::<\/span>radians<\/span>(<\/span>90.0<\/span>f<\/span>),<\/span> glm<\/span>::<\/span>vec3<\/span>(<\/span>0<\/span>,<\/span> 1<\/span>,<\/span> 0<\/span>)),<\/span>   \/\/ right<\/span>\r\n          glm<\/span>::<\/span>mat4<\/span>(<\/span>1.0<\/span>f<\/span>),<\/span>                                        \/\/ front<\/span>\r\n          glm<\/span>::<\/span>rotate<\/span>(<\/span>glm<\/span>::<\/span>radians<\/span>(<\/span>180.0<\/span>f<\/span>),<\/span> glm<\/span>::<\/span>vec3<\/span>(<\/span>0<\/span>,<\/span> 1<\/span>,<\/span> 0<\/span>)),<\/span>  \/\/ back<\/span>\r\n      });<\/span>\r\n  setUniformVec4Array<\/span>(<\/span>\"palletColorTable\"<\/span>,<\/span> std<\/span>::<\/span>vector<\/span><<\/span>glm<\/span>::<\/span>vec4<\/span>><\/span>{<\/span>\r\n                                              glm<\/span>::<\/span>vec4<\/span>(<\/span>1<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>),<\/span>\r\n                                              glm<\/span>::<\/span>vec4<\/span>(<\/span>0<\/span>,<\/span> 1<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>),<\/span>\r\n                                              glm<\/span>::<\/span>vec4<\/span>(<\/span>0<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>),<\/span>\r\n                                              glm<\/span>::<\/span>vec4<\/span>(<\/span>0<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>,<\/span> 1<\/span>),<\/span>\r\n                                              glm<\/span>::<\/span>vec4<\/span>(<\/span>1<\/span>,<\/span> 1<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>),<\/span>\r\n                                              glm<\/span>::<\/span>vec4<\/span>(<\/span>0<\/span>,<\/span> 1<\/span>,<\/span> 1<\/span>,<\/span> 1<\/span>),<\/span>\r\n                                              glm<\/span>::<\/span>vec4<\/span>(<\/span>1<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>,<\/span> 1<\/span>),<\/span>\r\n                                              glm<\/span>::<\/span>vec4<\/span>(<\/span>1<\/span>,<\/span> 1<\/span>,<\/span> 1<\/span>,<\/span> 1<\/span>),<\/span>\r\n                                              glm<\/span>::<\/span>vec4<\/span>(<\/span>0.2<\/span>,<\/span> 0.2<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>),<\/span>\r\n                                              glm<\/span>::<\/span>vec4<\/span>(<\/span>0.2<\/span>,<\/span> 0.2<\/span>,<\/span> 1<\/span>,<\/span> 1<\/span>),<\/span>\r\n                                          });<\/span>\r\n  m_shader<\/span>.<\/span>end<\/span>();<\/span>\r\n}<\/span>\r\n\r\nvoid<\/span> BoxelRenderer<\/span>::<\/span>batch<\/span>(<\/span>const<\/span> glm<\/span>::<\/span>vec3<\/span>&<\/span> pos<\/span>,<\/span> int<\/span> localOffset<\/span>,<\/span>\r\n                          int<\/span> localRotation<\/span>,<\/span> int<\/span> palletColor<\/span>)<\/span> {<\/span>\r\n  this<\/span>-><\/span>m_dirty<\/span> =<\/span> true<\/span>;<\/span>\r\n  m_attribPosition<\/span>.<\/span>emplace_back<\/span>(<\/span>pos<\/span>);<\/span>\r\n  m_attribLocalOffset<\/span>.<\/span>emplace_back<\/span>(<\/span>static_cast<\/span><<\/span>float<\/span>><\/span>(<\/span>localOffset<\/span>));<\/span>\r\n  m_attribLocalRotation<\/span>.<\/span>emplace_back<\/span>(<\/span>static_cast<\/span><<\/span>float<\/span>><\/span>(<\/span>localRotation<\/span>));<\/span>\r\n  m_attribPalletColor<\/span>.<\/span>emplace_back<\/span>(<\/span>static_cast<\/span><<\/span>float<\/span>><\/span>(<\/span>palletColor<\/span>));<\/span>\r\n}<\/span>\r\n\r\nvoid<\/span> BoxelRenderer<\/span>::<\/span>clear<\/span>()<\/span> {<\/span>\r\n  m_attribPosition<\/span>.<\/span>clear<\/span>();<\/span>\r\n  m_attribLocalOffset<\/span>.<\/span>clear<\/span>();<\/span>\r\n  m_attribLocalRotation<\/span>.<\/span>clear<\/span>();<\/span>\r\n  m_attribPalletColor<\/span>.<\/span>clear<\/span>();<\/span>\r\n  this<\/span>-><\/span>m_dirty<\/span> =<\/span> true<\/span>;<\/span>\r\n}<\/span>\r\n\r\nvoid<\/span> BoxelRenderer<\/span>::<\/span>rehash<\/span>()<\/span> {<\/span>\r\n  if<\/span> (<\/span>!<\/span>m_dirty<\/span>)<\/span> {<\/span>\r\n    return<\/span>;<\/span>\r\n  }<\/span>\r\n  this<\/span>-><\/span>m_dirty<\/span> =<\/span> false<\/span>;<\/span>\r\n  m_vbo<\/span>.<\/span>setAttributeDivisor<\/span>(<\/span>0<\/span>,<\/span> 0<\/span>);<\/span>\r\n  m_vbo<\/span>.<\/span>setAttributeDivisor<\/span>(<\/span>3<\/span>,<\/span> 0<\/span>);<\/span>\r\n  \/\/ \u4f4d\u7f6e\u3092\u8a2d\u5b9a<\/span>\r\n  m_vbo<\/span>.<\/span>setAttributeData<\/span>(<\/span>10<\/span>,<\/span> &<\/span>m_attribPosition<\/span>.<\/span>front<\/span>().<\/span>x<\/span>,<\/span> 3<\/span>,<\/span>\r\n                         m_attribPosition<\/span>.<\/span>size<\/span>(),<\/span> GL_STATIC_DRAW<\/span>,<\/span>\r\n                         sizeof<\/span>(<\/span>float<\/span>)<\/span> *<\/span> 3<\/span>);<\/span>\r\n  m_vbo<\/span>.<\/span>setAttributeDivisor<\/span>(<\/span>10<\/span>,<\/span> 1<\/span>);<\/span>\r\n  \/\/ \u30ed\u30fc\u30ab\u30eb\u4f4d\u7f6e\u3092\u8a2d\u5b9a<\/span>\r\n  m_vbo<\/span>.<\/span>setAttributeData<\/span>(<\/span>11<\/span>,<\/span> &<\/span>m_attribLocalOffset<\/span>.<\/span>front<\/span>(),<\/span> 1<\/span>,<\/span>\r\n                         m_attribLocalOffset<\/span>.<\/span>size<\/span>(),<\/span> GL_STATIC_DRAW<\/span>,<\/span>\r\n                         sizeof<\/span>(<\/span>float<\/span>));<\/span>\r\n  m_vbo<\/span>.<\/span>setAttributeDivisor<\/span>(<\/span>11<\/span>,<\/span> 1<\/span>);<\/span>\r\n  \/\/ \u30ed\u30fc\u30ab\u30eb\u56de\u8ee2\u3092\u8a2d\u5b9a<\/span>\r\n  m_vbo<\/span>.<\/span>setAttributeData<\/span>(<\/span>12<\/span>,<\/span> &<\/span>m_attribLocalRotation<\/span>.<\/span>front<\/span>(),<\/span> 1<\/span>,<\/span>\r\n                         m_attribLocalRotation<\/span>.<\/span>size<\/span>(),<\/span> GL_STATIC_DRAW<\/span>,<\/span>\r\n                         sizeof<\/span>(<\/span>float<\/span>));<\/span>\r\n  m_vbo<\/span>.<\/span>setAttributeDivisor<\/span>(<\/span>12<\/span>,<\/span> 1<\/span>);<\/span>\r\n  \/\/ \u8272\u3092\u8a2d\u5b9a<\/span>\r\n  m_vbo<\/span>.<\/span>setAttributeData<\/span>(<\/span>13<\/span>,<\/span> &<\/span>m_attribPalletColor<\/span>.<\/span>front<\/span>(),<\/span> 1<\/span>,<\/span>\r\n                         m_attribPalletColor<\/span>.<\/span>size<\/span>(),<\/span> GL_STATIC_DRAW<\/span>,<\/span>\r\n                         sizeof<\/span>(<\/span>float<\/span>));<\/span>\r\n  m_vbo<\/span>.<\/span>setAttributeDivisor<\/span>(<\/span>13<\/span>,<\/span> 1<\/span>);<\/span>\r\n}<\/span>\r\n\r\nvoid<\/span> BoxelRenderer<\/span>::<\/span>render<\/span>()<\/span> {<\/span>\r\n  rehash<\/span>();<\/span>\r\n  m_vbo<\/span>.<\/span>drawElementsInstanced<\/span>(<\/span>GL_TRIANGLES<\/span>,<\/span> 6<\/span>,<\/span>\r\n                              static_cast<\/span><<\/span>int<\/span>><\/span>(<\/span>m_attribPosition<\/span>.<\/span>size<\/span>()));<\/span>\r\n}<\/span>\r\n\r\n\/\/ private<\/span>\r\n\r\nvoid<\/span> BoxelRenderer<\/span>::<\/span>setUniformMatrixArray<\/span>(<\/span>const<\/span> std<\/span>::<\/span>string<\/span>&<\/span> name<\/span>,<\/span>\r\n                                          const<\/span> std<\/span>::<\/span>vector<\/span><<\/span>glm<\/span>::<\/span>mat4<\/span>>&<\/span> mvec<\/span>)<\/span> {<\/span>\r\n  GLint<\/span> loc<\/span> =<\/span> m_shader<\/span>.<\/span>getUniformLocation<\/span>(<\/span>name<\/span>);<\/span>\r\n  if<\/span> (<\/span>loc<\/span> ==<\/span> -<\/span>1<\/span>)<\/span> {<\/span>\r\n    ofLog<\/span>()<\/span> <<<\/span> name<\/span> <<<\/span> \" is not found\"<\/span>;<\/span>\r\n    return<\/span>;<\/span>\r\n  }<\/span>\r\n  std<\/span>::<\/span>vector<\/span><<\/span>float<\/span>><\/span> ptr<\/span>;<\/span>\r\n  ptr<\/span>.<\/span>reserve<\/span>(<\/span>16<\/span> *<\/span> mvec<\/span>.<\/span>size<\/span>());<\/span>\r\n  for<\/span> (<\/span>int<\/span> mp<\/span> =<\/span> 0<\/span>;<\/span> mp<\/span> <<\/span> 6<\/span>;<\/span> mp<\/span>++<\/span>)<\/span> {<\/span>\r\n    auto<\/span> const<\/span>&<\/span> m<\/span> =<\/span> mvec<\/span>.<\/span>at<\/span>(<\/span>mp<\/span>);<\/span>\r\n    const<\/span> float<\/span>*<\/span> data<\/span> =<\/span> glm<\/span>::<\/span>value_ptr<\/span>(<\/span>m<\/span>);<\/span>\r\n    for<\/span> (<\/span>int<\/span> i<\/span> =<\/span> 0<\/span>;<\/span> i<\/span> <<\/span> 16<\/span>;<\/span> i<\/span>++<\/span>)<\/span> {<\/span>\r\n      ptr<\/span>.<\/span>emplace_back<\/span>(<\/span>data<\/span>[<\/span>i<\/span>]);<\/span>\r\n    }<\/span>\r\n  }<\/span>\r\n  glUniformMatrix4fv<\/span>(<\/span>loc<\/span>,<\/span> mvec<\/span>.<\/span>size<\/span>(),<\/span> false<\/span>,<\/span> ptr<\/span>.<\/span>data<\/span>());<\/span>\r\n}<\/span>\r\n\r\nvoid<\/span> BoxelRenderer<\/span>::<\/span>setUniformVec3Array<\/span>(<\/span>const<\/span> std<\/span>::<\/span>string<\/span>&<\/span> name<\/span>,<\/span>\r\n                                        const<\/span> std<\/span>::<\/span>vector<\/span><<\/span>glm<\/span>::<\/span>vec3<\/span>>&<\/span> vvec<\/span>)<\/span> {<\/span>\r\n  m_shader<\/span>.<\/span>setUniform3fv<\/span>(<\/span>name<\/span>,<\/span> &<\/span>vvec<\/span>.<\/span>front<\/span>().<\/span>x<\/span>,<\/span> vvec<\/span>.<\/span>size<\/span>());<\/span>\r\n}<\/span>\r\n\r\nvoid<\/span> BoxelRenderer<\/span>::<\/span>setUniformVec4Array<\/span>(<\/span>const<\/span> std<\/span>::<\/span>string<\/span>&<\/span> name<\/span>,<\/span>\r\n                                        const<\/span> std<\/span>::<\/span>vector<\/span><<\/span>glm<\/span>::<\/span>vec4<\/span>>&<\/span> vvec<\/span>)<\/span> {<\/span>\r\n  m_shader<\/span>.<\/span>setUniform4fv<\/span>(<\/span>name<\/span>,<\/span> &<\/span>vvec<\/span>.<\/span>front<\/span>().<\/span>x<\/span>,<\/span> vvec<\/span>.<\/span>size<\/span>());<\/span>\r\n}<\/span>\r\n}<\/span>  \/\/ namespace ofBoxel<\/span>\r\n<\/code><\/pre>\n
\"2022-05-01_12-52-29.png\"<\/p>\n
4. \u6750\u8d28\u4ee5\u4e0a\u5b9e\u65bd\u4ec5\u4ec5\u662f\u4e00\u4e2a\u4e0a\u8272\u7684\u76d2\u5b50\uff0c\u63a5\u4e0b\u6765\u6211\u4eec\u4f1a\u8d34\u4e0a\u7eb9\u7406\u3002
\n\u5982\u679c\u53ea\u662f\u5728\u6240\u6709\u7684\u9762\u4e0a\u8d34\u4e0a\u76f8\u540c\u7684\u7eb9\u7406\uff0c\u5c31\u6ca1\u6709\u4ec0\u4e48\u7279\u522b\u9700\u8981\u8003\u8651\u7684\u4e8b\u60c5\u4e86\uff0c\u5728\u4e0b\u9762\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n
#version 410\r\n<\/span>\r\nin<\/span> vec2<\/span> uv<\/span>;<\/span>\r\n\r\nuniform<\/span> sampler2D<\/span> textureMap<\/span>;<\/span>\r\n\r\nout<\/span> vec4<\/span> fragColor<\/span>;<\/span>\r\n\r\nvoid<\/span> main<\/span> (<\/span>void<\/span>)<\/span> {<\/span>\r\n    fragColor<\/span> =<\/span> texture<\/span>(<\/span>textureMap<\/span>,<\/span> uv<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\"debug.png\"
\n\u203b\u7531\u4e8e\u9876\u70b9\u7740\u8272\u5668\u53ea\u662f\u4e3a\u4e86UV\u548c\u7eb9\u7406\u7f16\u53f7\u6dfb\u52a0\u4e86\u5c5e\u6027\uff0c\u6240\u4ee5\u8fd9\u91cc\u7701\u7565\u4e86\u4e00\u4e9b\u5185\u5bb9\u3002
\n\u5b9e\u9645\u4e0a\uff0c\u504f\u79fbUV\u7684\u5904\u7406\u5982\u4e0b\u6240\u793a\u3002
\n\u7531\u4e8eUV\u5df2\u7ecf\u5f52\u4e00\u5316\u52300~1\u7684\u8303\u56f4\u5185\uff0c\u6240\u4ee5\u53ef\u4ee5\u901a\u8fc71.0f\/8.0f\u6765\u83b7\u53d6\u7279\u5b9a\u69fd\u4f4d\u7684\u8303\u56f4\u3002
\n\uff08\u8fd9\u6b21\u662f\u4e00\u5e45\u75318×8\u5757\u94fa\u6ee1\u7684\u56fe\u7247\uff0c\u5982\u679c\u884c\u6570\u548c\u5217\u6570\u4ece\u5916\u90e8\u4f20\u5165\u7684\u8bdd\uff0c\u53ef\u80fd\u4f1a\u66f4\u5177\u901a\u7528\u6027\u3002\uff09
\n\u4e3a\u4e86\u6307\u5b9a\u7eb9\u7406\uff0c\u6211\u4eec\u4e0d\u662f\u83b7\u53d6vec2\u7c7b\u578b\uff0c\u800c\u662f\u83b7\u53d6float\u7c7b\u578b\uff0c\u8fd9\u4e5f\u662f\u4e3a\u4e86\u51cf\u5c11\u6570\u636e\u91cf\u3002
\n\u7b80\u5355\u5730\u901a\u8fc7\u884c\u6570\u6765\u9664\u4ee5\u5546\u548c\u4f59\u6570\u6765\u4f5c\u4e3a\u884c\u53f7\u548c\u5217\u53f7\u3002
\n\u5269\u4e0b\u7684\u5c31\u662f\u5c06\u4f20\u5165\u7684UV\u91cd\u65b0\u6620\u5c04\u5230\u8be5\u8303\u56f4\u5373\u53ef\u3002<\/p>\n
#version 410\r\n<\/span>\r\nin<\/span> float<\/span> textureSlot<\/span>;<\/span>\r\nin<\/span> vec2<\/span> uv<\/span>;<\/span>\r\n\r\nuniform<\/span> sampler2D<\/span> textureMap<\/span>;<\/span>\r\n\r\nout<\/span> vec4<\/span> fragColor<\/span>;<\/span>\r\n\r\nfloat<\/span> map<\/span>(<\/span>float<\/span> min<\/span>,<\/span> float<\/span> max<\/span>,<\/span> float<\/span> t<\/span>)<\/span> {<\/span>\r\n    return<\/span> min<\/span> +<\/span> ((<\/span>max<\/span> -<\/span> min<\/span>)<\/span> *<\/span> t<\/span>);<\/span>\r\n}<\/span>\r\n\r\nvoid<\/span> main<\/span> (<\/span>void<\/span>)<\/span> {<\/span>\r\n    float<\/span> slotSize<\/span> =<\/span> 1<\/span>.<\/span>0<\/span>f<\/span> \/<\/span> 8<\/span>.<\/span>0<\/span>f<\/span>;<\/span>\r\n    float<\/span> row<\/span> =<\/span> floor<\/span>(<\/span>textureSlot<\/span> \/<\/span> 8<\/span>.<\/span>0<\/span>f<\/span>);<\/span>\r\n    float<\/span> col<\/span> =<\/span> mod<\/span>(<\/span>textureSlot<\/span>,<\/span> 8<\/span>.<\/span>0<\/span>f<\/span>);<\/span>\r\n    float<\/span> umin<\/span> =<\/span> col<\/span> *<\/span> slotSize<\/span>;<\/span>\r\n    float<\/span> umax<\/span> =<\/span> umin<\/span> +<\/span> slotSize<\/span>;<\/span>\r\n    float<\/span> vmin<\/span> =<\/span> row<\/span> *<\/span> slotSize<\/span>;<\/span>\r\n    float<\/span> vmax<\/span> =<\/span> vmin<\/span> +<\/span> slotSize<\/span>;<\/span>\r\n    vec2<\/span> slotPos<\/span> =<\/span> vec2<\/span>(<\/span>\r\n        map<\/span>(<\/span>umin<\/span>,<\/span> umax<\/span>,<\/span> uv<\/span>.<\/span>x<\/span>),<\/span>\r\n        map<\/span>(<\/span>vmin<\/span>,<\/span> vmax<\/span>,<\/span> uv<\/span>.<\/span>y<\/span>)<\/span>\r\n    );<\/span>\r\n    fragColor<\/span> =<\/span> texture<\/span>(<\/span>textureMap<\/span>,<\/span> slotPos<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\"texturemap.mov.gif\"<\/p>\n
5. \u4fee\u6539\u7eb9\u7406<\/p>\n
\"game.mov.gif\"<\/p>\n
6. \u5608\u6742\u58f0<\/p>\n
\"2022-05-02_16-11-45.png\"<\/p>\n
7. \u66f4\u65b0\u4f53\u7d20\u3002
\n\u30a4\u30f3\u30b9\u30bf\u30f3\u30b7\u30f3\u30b0\u306b\u3088\u308b\u6700\u9069\u5316\u306f\u9759\u7684\u306a\u5927\u91cf\u306e\u30dc\u30af\u30bb\u30eb\u3092\u63cf\u753b\u3059\u308b\u5206\u306b\u306f\u9ad8\u901f\u3067\u3059\u304c\u3001
\n\u5b9f\u884c\u6642\u306b\u30dc\u30af\u30bb\u30eb\u3092\u8a2d\u7f6e\u3057\u305f\u308a\u7834\u58ca\u3057\u305f\u308a\u3059\u308b\u5834\u5408\u306b\u306f\u554f\u984c\u304c\u3042\u308a\u307e\u3059\u3002
\n[6]\u3067\u306f\u8aac\u660e\u3092\u7701\u7565\u3057\u307e\u3057\u305f\u304c\u3001\u30dc\u30af\u30bb\u30eb\u3092\u8907\u6570\u9023\u7d9a\u3057\u3066\u914d\u7f6e\u3059\u308b\u3068\u304d\u306b\u306f\u898b\u3048\u308b\u9762\u3068\u898b\u3048\u306a\u3044\u9762\u3092\u533a\u5225\u3059\u308b\u5fc5\u8981\u304c\u751f\u3058\u307e\u3059\u3002
\n\u4f8b\u3048\u3070\u30dc\u30af\u30bb\u30eb\u304c9\u500b\u7acb\u65b9\u4f53\u3092\u306a\u3059\u69d8\u306b\u914d\u7f6e\u3055\u308c\u3066\u3044\u308b\u3068\u304d\u771f\u3093\u4e2d\u306e\u30dc\u30af\u30bb\u30eb\u306f\u5168\u3066\u306e\u9762\u304c\u898b\u3048\u307e\u305b\u3093\u3002
\n\u306a\u306e\u3067\u3053\u306e\u30dc\u30af\u30bb\u30eb\u306b\u3064\u3044\u3066\u306f\u63cf\u753b\u3092\u7701\u7565\u3059\u308b\u305f\u3081\u306b\u305d\u3082\u305d\u3082 attribute \u3092\u9001\u308a\u307e\u305b\u3093\u3002<\/p>\n
\u3053\u306e\u3088\u3046\u306a\u9762\u3054\u3068\u306e\u5224\u65ad\u3092\u30dc\u30af\u30bb\u30eb\u3072\u3068\u3064\u3072\u3068\u3064\u306b\u5bfe\u3057\u3066\u884c\u3044\u4f5c\u6210\u3057\u305f attribute \u3067 VBO \u3092\u66f4\u65b0\u3059\u308b\u308f\u3051\u3067\u3059\u3002
\n\u3055\u3089\u306b\u3044\u3046\u306a\u3089\u3001VBO\u306e\u66f4\u65b0\u306f\u9577\u3055\u304c\u5909\u308f\u308b\u5834\u5408\u306b\u306fglBufferData\u3067\u4e38\u3054\u3068\u66f4\u65b0\u3059\u308b\u3057\u304b\u3042\u308a\u307e\u305b\u3093\u3002
\n(\u9577\u3055\u304c\u5909\u308f\u3089\u306a\u3044\u306a\u3089 glBufferSubData, glMapBuffer\u3082\u4f7f\u3048\u308b\u306e\u3067\u3059\u304c\u3002)
\n\u30dc\u30af\u30bb\u30eb\u304c\u66f4\u65b0\u3055\u308c\u308b\u305f\u3073\u306b\u4e0a\u8a18\u306e\u51e6\u7406\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n
\u3068\u3044\u3046\u308f\u3051\u3067\u554f\u984c\u306f\u4ee5\u4e0b\u4e8c\u3064\u3067\u3059\u3002<\/p>\n
    \n
  • \n
      \u9762\u3054\u3068\u306b\u898b\u3048\u308b\/\u898b\u3048\u306a\u3044\u3092\u5224\u65ad\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u3053\u308c\u306b\u7121\u8996\u3067\u304d\u306a\u3044\u30b3\u30b9\u30c8\u304c\u304b\u304b\u308b<\/ul>\n<\/li>\n<\/ul>\n
       <\/p>\n
        \n
      • \n
          \u30d0\u30c3\u30d5\u30a1\u3092\u4e38\u3054\u3068\u66f4\u65b0\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u306a\u3044<\/ul>\n<\/li>\n<\/ul>\n
          \u305f\u3060\u3057\u3001\u4e16\u754c\u3092\u30c1\u30e3\u30f3\u30af\u3054\u3068\u306b\u533a\u5207\u308b\u306a\u3089\u4e00\u5ea6\u306b\u66f4\u65b0\u3055\u308c\u308b\u30d0\u30c3\u30d5\u30a1\u306f\u5c0f\u3055\u304f\u3067\u304d\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u3002
          \n\u304c\u3001\u305d\u306e\u5206\u30c9\u30ed\u30fc\u30b3\u30fc\u30eb\u306f\u5897\u3048\u308b\u3053\u3068\u306b\u306a\u308b\u3002<\/p>\n
          \u6211\u6700\u521d\u7684\u5b9e\u73b0\u5982\u4e0b\u3002<\/p>\n
            \n
          • \n
              \u6bce\u56de\u524d\u56de\u8a08\u7b97\u3057\u305f\u7d50\u679c\u3092\u7834\u68c4\u3057\u3066\u4e00\u304b\u3089\u5168\u3066\u306e\u30dc\u30af\u30bb\u30eb\u306e\u5168\u3066\u306e\u9762\u306e\u30c1\u30a7\u30c3\u30af<\/ul>\n<\/li>\n<\/ul>\n
               <\/p>\n
                \u30d0\u30c3\u30d5\u30a1\u306f\u6bce\u56de\u4e38\u3054\u3068\u66f4\u65b0<\/ul>\n
                \u6211\u7528\u8fd9\u4e2a\u5b9e\u73b0\u751f\u6210\u4e86\u4e00\u4e2a256x256x256\u7684\u4e16\u754c\uff0c\u5e76\u5728\u8fd0\u884c\u65f6\u6d4b\u91cf\u4e86\u653e\u7f6e\u6216\u7834\u574f\u65b9\u5757\u65f6\u7684\u5904\u7406\u65f6\u95f4\u3002\u7ed3\u679c\u663e\u793a\uff0c\u9762\u7684\u53ef\u89c1\u6027\u68c0\u67e5\u5927\u7ea6\u9700\u89812000~3000\u6beb\u79d2\uff0c\u800c\u7f13\u51b2\u533a\u7684\u66f4\u65b0\u53ea\u9700\u89810~1\u6beb\u79d2\u5de6\u53f3\u3002<\/p>\n
                \u5f8c\u8005\u306f\u4eca\u306e\u898f\u6a21\u3067\u306f\u307e\u3060\u554f\u984c\u306a\u3055\u305d\u3046\u306a\u306e\u3067\u3001\u3072\u3068\u307e\u305a\u524d\u8005\u306e\u89e3\u6c7a\u3092\u8003\u3048\u307e\u3059\u3002
                \n\u307e\u305a\u601d\u3044\u3064\u304f\u306e\u306f\u3069\u3053\u304b\u3067\u30dc\u30af\u30bb\u30eb\u304c\u66f4\u65b0\u3055\u308c\u305f\u6642\u306b\u305d\u306e\u8fd1\u508d6\u30de\u30b9\u3092\u8a18\u9332\u3057\u3066\u304a\u304f\u3053\u3068\u3067\u3059\u3002
                \n\u6b21\u306b attribute \u3092\u4f5c\u6210\u3059\u308b\u3068\u304d\u306b\u57fa\u672c\u7684\u306b\u306f\u524d\u56de\u306e\u7d50\u679c\u3092\u4f7f\u7528\u3057\u3001\u8a18\u9332\u3055\u308c\u305f\u7b87\u6240\u3060\u3051\u5225\u9014\u66f4\u65b0\u3059\u308b\u30a4\u30e1\u30fc\u30b8\u3067\u3059\u3002
                \n\u3053\u308c\u3092\u5b9f\u88c5\u3059\u308b\u305f\u3081\u306b\u306f attribute \u306e\u3069\u306e\u7b87\u6240\u304c\u3069\u306e\u30dc\u30af\u30bb\u30eb\u5ea7\u6a19\u306b\u5bfe\u5fdc\u3059\u308b\u304b\u77e5\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u4eca\u56de\u306f aPosition \u306e\u4e2d\u304b\u3089\u691c\u7d22\u3059\u308c\u3070\u826f\u3055\u305d\u3046\u3067\u3059\u3002
                \n\u305d\u3057\u3066\u5f53\u7136\u3053\u306e\u8a18\u9332\u3055\u308c\u305f\u7b87\u6240\u306e\u66f4\u65b0\u306e\u6642\u66f4\u65b0\u3059\u308b\u5fc5\u8981\u306e\u306a\u3044\u5ea7\u6a19\u306e attribute \u306b\u5f71\u97ff\u3092\u4e0e\u3048\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002
                \n\u5909\u66f4\u3057\u305f\u3044\u3068\u3053\u308d\u3068\u5909\u66f4\u3057\u3066\u306f\u3044\u3051\u306a\u3044\u3068\u3053\u308d\u304c\u4ea4\u4e92\u306b\u4e26\u3093\u3067\u3044\u308b\u3068\u3053\u308c\u306f\u3061\u3087\u3063\u3068\u9762\u5012\u3067\u3001\u4eca\u56de\u306f\u3088\u308a\u5206\u3051\u3066\u307f\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002
                \n\u5c11\u3057\u8aac\u660e\u304c\u9577\u304f\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u304c\u4ee5\u4e0b\u306b\u5b9f\u969b\u306e\u30b3\u30fc\u30c9\u3092\u629c\u7c8b\u3057\u307e\u3059\u3002<\/p>\n
                void<\/span> BoxelRenderer<\/span>::<\/span>compact<\/span>(<\/span>const<\/span> std<\/span>::<\/span>vector<\/span><<\/span>glm<\/span>::<\/span>ivec3<\/span>>&<\/span> update<\/span>)<\/span> {<\/span>\r\n  \/\/ update\u306b\u5165\u3063\u3066\u3044\u308b\u66f4\u65b0\u4e88\u5b9a\u306e\u5ea7\u6a19\u304c attribtue \u306e\u4e2d\u3067\u4f55\u756a\u76ee\u3067\u3042\u308b\u304b\u3092\u53d6\u5f97<\/span>\r\n  std<\/span>::<\/span>vector<\/span><<\/span>int<\/span>><\/span> table<\/span>;<\/span>\r\n  for<\/span> (<\/span>int<\/span> i<\/span> =<\/span> 0<\/span>;<\/span> i<\/span> <<\/span> update<\/span>.<\/span>size<\/span>();<\/span> i<\/span>++<\/span>)<\/span> {<\/span>\r\n    glm<\/span>::<\/span>ivec3<\/span> pos<\/span> =<\/span> update<\/span>.<\/span>at<\/span>(<\/span>i<\/span>);<\/span>\r\n    int<\/span> sides<\/span> =<\/span> 6<\/span>;<\/span>\r\n    for<\/span> (<\/span>int<\/span> j<\/span> =<\/span> 0<\/span>;<\/span> j<\/span> <<\/span> m_attribPosition<\/span>.<\/span>size<\/span>()<\/span> -<\/span> m_freeIndex<\/span>;<\/span> j<\/span>++<\/span>)<\/span> {<\/span>\r\n      glm<\/span>::<\/span>ivec3<\/span> aPos<\/span> =<\/span> glm<\/span>::<\/span>ivec3<\/span>(<\/span>m_attribPosition<\/span>.<\/span>at<\/span>(<\/span>j<\/span>));<\/span>\r\n      if<\/span> (<\/span>pos<\/span> ==<\/span> aPos<\/span>)<\/span> {<\/span>\r\n        table<\/span>.<\/span>emplace_back<\/span>(<\/span>j<\/span>);<\/span>\r\n        \/\/ \u5168\u3066\u306e\u9762\u3092\u53d6\u5f97\u3057\u305f\u3089\u7d42\u4e86<\/span>\r\n        if<\/span> (<\/span>sides<\/span>--<\/span> ==<\/span> 0<\/span>)<\/span> {<\/span>\r\n          break<\/span>;<\/span>\r\n        }<\/span>\r\n      }<\/span>\r\n    }<\/span>\r\n  }<\/span>\r\n  \/\/ \u524d\u56de\u30b3\u30f3\u30d1\u30af\u30b7\u30e7\u30f3\u3057\u305f\u3068\u304d\u306e\u8981\u7d20\u304c\u307e\u3060\u4f59\u3063\u3066\u3044\u305f\u3089\u4eca\u56de\u3082\u305d\u308c\u3089\u3092\u62fe\u3046<\/span>\r\n  while<\/span> (<\/span>m_freeIndex<\/span> ><\/span> 0<\/span>)<\/span> {<\/span>\r\n    table<\/span>.<\/span>emplace_back<\/span>(<\/span>m_attribPosition<\/span>.<\/span>size<\/span>()<\/span> -<\/span> m_freeIndex<\/span>);<\/span>\r\n    m_freeIndex<\/span>--<\/span>;<\/span>\r\n  }<\/span>\r\n  \/\/ \u6dfb\u5b57\u30c6\u30fc\u30d6\u30eb\u3092\u6607\u9806\u30bd\u30fc\u30c8<\/span>\r\n  \/\/ \u5f8c\u3067\u9078\u308a\u5206\u3051\u308b\u3068\u304d\u306b\u3053\u3061\u3089\u306e\u65b9\u304c\u90fd\u5408\u304c\u826f\u3044\u306e\u3067<\/span>\r\n  std<\/span>::<\/span>sort<\/span>(<\/span>table<\/span>.<\/span>begin<\/span>(),<\/span> table<\/span>.<\/span>end<\/span>());<\/span>\r\n  \/\/ \u30b3\u30f3\u30d1\u30af\u30b7\u30e7\u30f3\u306e\u7d50\u679c\u518d\u5229\u7528\u53ef\u80fd\u306b\u306a\u308b\u8981\u7d20\u306e\u6570<\/span>\r\n  this<\/span>-><\/span>m_freeIndex<\/span> =<\/span> static_cast<\/span><<\/span>int<\/span>><\/span>(<\/span>table<\/span>.<\/span>size<\/span>());<\/span>\r\n  \/\/ \u9078\u308a\u5206\u3051\u308b<\/span>\r\n  compact<\/span>(<\/span>table<\/span>,<\/span> m_attribPosition<\/span>);<\/span>\r\n  compact<\/span>(<\/span>table<\/span>,<\/span> m_attribLocalOffset<\/span>);<\/span>\r\n  compact<\/span>(<\/span>table<\/span>,<\/span> m_attribLocalRotation<\/span>);<\/span>\r\n  compact<\/span>(<\/span>table<\/span>,<\/span> m_attribTextureSlot<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                \u5185\u90e8\u8c03\u7528\u7684compact\u51fd\u6570\u7684\u5b9e\u73b0\u5982\u4e0b\uff1a<\/p>\n
                template<\/span> <<\/span>typename<\/span> T<\/span>><\/span>\r\nvoid<\/span> compact<\/span>(<\/span>const<\/span> std<\/span>::<\/span>vector<\/span><<\/span>int<\/span>>&<\/span> table<\/span>,<\/span> std<\/span>::<\/span>vector<\/span><<\/span>T<\/span>>&<\/span> src<\/span>)<\/span> {<\/span>\r\n  std<\/span>::<\/span>vector<\/span><<\/span>T<\/span>><\/span> tmp<\/span>;<\/span>\r\n  tmp<\/span>.<\/span>resize<\/span>(<\/span>src<\/span>.<\/span>size<\/span>());<\/span>\r\n  \/\/ \u5909\u66f4\u3057\u3066\u306f\u3044\u3051\u306a\u3044\u9818\u57df\u3092\u8a70\u3081\u306a\u304c\u3089\u8ffd\u52a0<\/span>\r\n  int<\/span> index<\/span> =<\/span> 0<\/span>;<\/span>\r\n  int<\/span> offset<\/span> =<\/span> 0<\/span>;<\/span>\r\n  for<\/span> (<\/span>int<\/span> next<\/span> :<\/span> table<\/span>)<\/span> {<\/span>\r\n    if<\/span> (<\/span>index<\/span> ==<\/span> next<\/span>)<\/span> {<\/span>\r\n      index<\/span> =<\/span> next<\/span> +<\/span> 1<\/span>;<\/span>\r\n      continue<\/span>;<\/span>\r\n    }<\/span>\r\n    std<\/span>::<\/span>copy<\/span>(<\/span>src<\/span>.<\/span>begin<\/span>()<\/span> +<\/span> index<\/span>,<\/span> src<\/span>.<\/span>begin<\/span>()<\/span> +<\/span> next<\/span>,<\/span> tmp<\/span>.<\/span>begin<\/span>()<\/span> +<\/span> offset<\/span>);<\/span>\r\n    offset<\/span> +=<\/span> next<\/span> -<\/span> index<\/span>;<\/span>\r\n    index<\/span> =<\/span> next<\/span> +<\/span> 1<\/span>;<\/span>\r\n  }<\/span>\r\n  if<\/span> (<\/span>index<\/span> <<\/span> src<\/span>.<\/span>size<\/span>())<\/span> {<\/span>\r\n    std<\/span>::<\/span>copy<\/span>(<\/span>src<\/span>.<\/span>begin<\/span>()<\/span> +<\/span> index<\/span>,<\/span> src<\/span>.<\/span>end<\/span>(),<\/span> tmp<\/span>.<\/span>begin<\/span>()<\/span> +<\/span> offset<\/span>);<\/span>\r\n    offset<\/span> +=<\/span> src<\/span>.<\/span>size<\/span>()<\/span> -<\/span> index<\/span>;<\/span>\r\n  }<\/span>\r\n  \/\/ \u6700\u5f8c\u306b\u5909\u66f4\u3057\u3066\u3082\u3044\u3044\u9818\u57df\u3092\u8ffd\u52a0<\/span>\r\n  for<\/span> (<\/span>int<\/span> i<\/span> =<\/span> 0<\/span>;<\/span> i<\/span> <<\/span> table<\/span>.<\/span>size<\/span>();<\/span> i<\/span>++<\/span>)<\/span> {<\/span>\r\n    tmp<\/span>.<\/span>at<\/span>(<\/span>offset<\/span> +<\/span> i<\/span>)<\/span> =<\/span> src<\/span>.<\/span>at<\/span>(<\/span>table<\/span>.<\/span>at<\/span>(<\/span>i<\/span>));<\/span>\r\n  }<\/span>\r\n  \/\/ \u672c\u4f53\u306b\u30b3\u30d4\u30da<\/span>\r\n  src<\/span>.<\/span>swap<\/span>(<\/span>tmp<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                \u3053\u306e\u30b3\u30f3\u30d1\u30af\u30c8\u30e1\u30bd\u30c3\u30c9\u306b\u3088\u3063\u3066\u3053\u308c\u304b\u3089\u66f4\u65b0\u3055\u308c\u308b\u30c7\u30fc\u30bf\u3060\u3051\u304c\u53f3\u306b\u5bc4\u305b\u3089\u308c\u307e\u3059\u3002
                \n\u305d\u3057\u3066 m_freeIndex \u306b\u306f\u6b21\u306b\u30d0\u30c3\u30c1\u51e6\u7406\u3092\u958b\u59cb\u3059\u308b\u3068\u304d\u306e\u66f8\u304d\u8fbc\u307f\u958b\u59cb\u30aa\u30d5\u30bb\u30c3\u30c8\u304c\u8a18\u9332\u3055\u308c\u307e\u3059\u3002
                \n\u6b21\u306b\u30d0\u30c3\u30c1\u3059\u308b\u3068\u304d\u306f\u5168\u3066\u306e\u30dc\u30af\u30bb\u30eb\u3092\u5bfe\u8c61\u3068\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u4e88\u3081\u8a18\u9332\u3055\u308c\u305f\u7bc4\u56f2\u3060\u3051\u3092\u5bfe\u8c61\u3068\u3057\u3001\u306a\u304a\u304b\u3064 m_freeIndex \u304b\u3089\u66f8\u304d\u8fbc\u307f\u59cb\u3081\u308b\u3053\u3068\u3067\u524d\u56de\u306e\u8a08\u7b97\u7d50\u679c\u3092\u304b\u306a\u308a\u4f7f\u3044\u307e\u308f\u305b\u307e\u3059\u3002
                \n\u6ce8\u610f\u70b9\u3068\u3057\u3066\u3001\u3088\u308a\u5206\u3051+\u30d0\u30c3\u30c1\u51e6\u7406\u306e\u5f8c\u3082\u307e\u3060\u30c7\u30fc\u30bf\u304c\u4f59\u3063\u3066\u3044\u308b\u3001\u3064\u307e\u308a attribute \u304c\u66f4\u65b0\u524d\u3088\u308a\u3082\u7e2e\u3093\u3067\u3044\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002
                \n\u306a\u306e\u3067\u3001BoxelRenderer.batch \u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u4fee\u6b63\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n
                void<\/span> BoxelRenderer<\/span>::<\/span>render<\/span>()<\/span> {<\/span>\r\n  rehash<\/span>();<\/span>\r\n  m_vbo<\/span>.<\/span>drawElementsInstanced<\/span>(<\/span>\r\n      GL_TRIANGLES<\/span>,<\/span> 6<\/span>,<\/span> static_cast<\/span><<\/span>int<\/span>><\/span>(<\/span>m_attribPosition<\/span>.<\/span>size<\/span>())<\/span> -<\/span> m_freeIndex<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                \u203b\u5b9f\u969b\u306b\u306f\u3082\u3061\u308d\u3093\u4ed6\u306b\u3082\u3044\u308d\u3044\u308d\u5909\u66f4\u304c\u5fc5\u8981\u3067\u3059\u3002
                \n\u4f8b\u3048\u3070\u5909\u66f4\u7b87\u6240\u3092\u767b\u9332\u3059\u308b invalidate() \u3084\u305d\u306e\u4e00\u89a7\u3092\u4fdd\u5b58\u3059\u308b m_dirtyPositions \u306a\u3069\u3002
                \n\u4eca\u56de\u306e\u7ae0\u306e\u672c\u8cea\u7684\u306a\u90e8\u5206\u3067\u306f\u306a\u3044\u306e\u3067\u3053\u3053\u3067\u306f\u7701\u7565\u3057\u3066\u3044\u307e\u3059\u304c\u5168\u4f53\u306f\u30b5\u30f3\u30d7\u30eb\u30ea\u30dd\u30b8\u30c8\u30ea\u304b\u3089\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n
                \"dboxel.gif\"<\/p>\n
                8. \u534a\u4e2a\u65b9\u5757\u7684\u8868\u8fbe\u65b9\u5f0fMinecraft\u4e2d\u5b58\u5728\u7740\u4e00\u4e9bY\u8f74\u5927\u5c0f\u51cf\u534a\u7684\u65b9\u5757\u3002
                \n\u901a\u8fc7\u5728\u7f29\u653e\u540e\uff0c\u4ee51\/4\u7acb\u65b9\u4f53\u5355\u4f4d\u6cbf\u8f74\u65b9\u5411\u79fb\u52a8\u6765\u8868\u793a\u8fd9\u4e00\u70b9\u3002
                \n(\u8003\u8651\u5230\u7f29\u653e\u662f\u4ece\u4e24\u7aef\u9010\u6e10\u51cf\u534a\uff0c\u6240\u4ee5\u9700\u8981\u8003\u8651\u8fd9\u4e00\u70b9\u3002)<\/p>\n
                #version 410\r\n<\/span>layout<\/span>(<\/span>location<\/span>=<\/span>0<\/span>)<\/span> in<\/span> vec3<\/span> aVertex<\/span>;<\/span>\r\nlayout<\/span>(<\/span>location<\/span>=<\/span>3<\/span>)<\/span> in<\/span> vec2<\/span> aUV<\/span>;<\/span>\r\n\r\nlayout<\/span>(<\/span>location<\/span>=<\/span>10<\/span>)<\/span> in<\/span> vec3<\/span> aPosition<\/span>;<\/span>\r\nlayout<\/span>(<\/span>location<\/span>=<\/span>11<\/span>)<\/span> in<\/span> float<\/span> aLocalOffset<\/span>;<\/span>\r\nlayout<\/span>(<\/span>location<\/span>=<\/span>12<\/span>)<\/span> in<\/span> float<\/span> aLocalScale<\/span>;<\/span>\r\nlayout<\/span>(<\/span>location<\/span>=<\/span>13<\/span>)<\/span> in<\/span> float<\/span> aLocalRotation<\/span>;<\/span>\r\nlayout<\/span>(<\/span>location<\/span>=<\/span>14<\/span>)<\/span> in<\/span> float<\/span> aTextureSlot<\/span>;<\/span>\r\nuniform<\/span> mat4<\/span> modelViewProjectionMatrix<\/span>;<\/span>\r\nuniform<\/span> vec3<\/span> localOffsetTable<\/span>[<\/span>42<\/span>];<\/span>\r\nuniform<\/span> vec3<\/span> localScaleTable<\/span>[<\/span>4<\/span>];<\/span>\r\nuniform<\/span> mat4<\/span> localRotationTable<\/span>[<\/span>6<\/span>];<\/span>\r\n\r\nout<\/span> float<\/span> textureSlot<\/span>;<\/span>\r\nout<\/span> vec2<\/span> uv<\/span>;<\/span>\r\n\r\nmat4<\/span> translate<\/span>(<\/span>vec3<\/span> v<\/span>)<\/span> {<\/span>\r\n    return<\/span> mat4<\/span>(<\/span>\r\n        vec4<\/span>(<\/span>1<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>),<\/span>\r\n        vec4<\/span>(<\/span>0<\/span>,<\/span> 1<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>),<\/span>\r\n        vec4<\/span>(<\/span>0<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>,<\/span> 0<\/span>),<\/span>\r\n        vec4<\/span>(<\/span>v<\/span>,<\/span> 1<\/span>)<\/span>\r\n    );<\/span>\r\n}<\/span>\r\n\r\nvoid<\/span> main<\/span>(<\/span>void<\/span>)<\/span> {<\/span>\r\n    vec3<\/span> localOffset<\/span> =<\/span> localOffsetTable<\/span>[<\/span>int<\/span>(<\/span>aLocalOffset<\/span>)];<\/span>\r\n    vec3<\/span> localScale<\/span> =<\/span> localScaleTable<\/span>[<\/span>int<\/span>(<\/span>aLocalScale<\/span>)];<\/span>\r\n    mat4<\/span> localRotation<\/span> =<\/span> localRotationTable<\/span>[<\/span>int<\/span>(<\/span>aLocalRotation<\/span>)];<\/span>\r\n    vec3<\/span> scaled<\/span> =<\/span> localScale<\/span> *<\/span> aVertex<\/span>;<\/span>\r\n    vec3<\/span> position<\/span> =<\/span> aPosition<\/span> +<\/span> localOffset<\/span>;<\/span>\r\n    mat4<\/span> localTransform<\/span> =<\/span> translate<\/span>(<\/span>position<\/span>)<\/span> *<\/span> localRotation<\/span> *<\/span> translate<\/span>(<\/span>-<\/span>position<\/span>);<\/span>\r\n    mat4<\/span> MVP<\/span> =<\/span> (<\/span>modelViewProjectionMatrix<\/span> *<\/span> localTransform<\/span>);<\/span>\r\n    textureSlot<\/span> =<\/span> aTextureSlot<\/span>;<\/span>\r\n    uv<\/span> =<\/span> aUV<\/span>;<\/span>\r\n    gl_Position<\/span> =<\/span> MVP<\/span> *<\/span> vec4<\/span>(<\/span>scaled<\/span> +<\/span> position<\/span>,<\/span> 1<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                \u4ee5\u4e0b\u662f\u5e73\u884c\u79fb\u52a8\u7684\u8868\u683c\u975e\u5e38\u5927\u3002\u8fd9\u662f\u56e0\u4e3a\u9700\u8981\u4e03\u79cd\u53d8\u5316\uff0c\u5206\u522b\u4e3a\u5757+\u4e0a\u4e0b\u534a+\u5de6\u53f3\u534a+\u524d\u540e\u534a\uff0c\u5e76\u4e14\u6bcf\u79cd\u53d8\u5316\u90fd\u6709\u516d\u4e2a\u9762\u3002\u5b9e\u9645\u4e0a\uff0c\u5b83\u53ef\u4ee5\u88ab\u8fdb\u4e00\u6b65\u7b80\u5316\u3002\u4f46\u4e3a\u4e86\u4fbf\u4e8e\u7a0b\u5e8f\u7684\u7406\u89e3\u548c\u6574\u9f50\uff0c\u5b83\u88ab\u8bbe\u8ba1\u6210\u8fd9\u6837\u3002<\/p>\n
                \u4e00\u81f4\u6027\u7684\u4e09\u7ef4\u672c\u5730\u504f\u79fb\u8868 [42];<\/p><\/blockquote>\n
                \"2022-05-08_20-10-40.png\"
                \n\u5982\u679c\u6539\u53d8\u6bd4\u4f8b\u8bbe\u7f6e\uff0c\u50cf\u5730\u6bef\u3001\u96ea\u548c\u95e8\u8fd9\u6837\u7684\u65b9\u5757\u4e5f\u53ef\u4ee5\u518d\u73b0\u3002 (\u867d\u7136\u95e8\u9996\u5148\u9700\u8981\u89e3\u51b3\u65b9\u5411\u7684\u6982\u5ff5\u95ee\u9898…)<\/p>\n
                \u7136\u800c\uff0c\u5c0d\u65bc\u50cf\u662f\u968e\u68af\u3001\u706b\u70ac\u548c\u67f5\u6b04\u7b49\u8907\u96dc\u7684\u5f62\u72c0\uff0c\u53ef\u80fd\u53ea\u80fd\u9032\u884c\u624b\u7e6a\u4f86\u5340\u5206\u3002<\/p>\n
                \u95ee\u9898<\/p>\n
                  \n
                • \n
                    minecraft\u306e\u3088\u3046\u306a\u5149\u306e\u8868\u73fe<\/ul>\n<\/li>\n<\/ul>\n
                    attribute \u3067\u6e21\u305b\u3070\u826f\u3055\u305d\u3046\u3067\u3059\u304c\u3001\u9762\u3054\u3068\u306b\u660e\u308b\u3055\u30ec\u30d9\u30eb\u3092\u6e21\u3059\u306e\u306f\u5c11\u3057\u7121\u99c4\u304c\u3042\u308b<\/p>\n
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