{"id":3851,"date":"2018-03-07T15:35:30","date_gmt":"2018-03-07T07:35:30","guid":{"rendered":"http:\/\/www.bookcard.net\/wordpress\/?p=3851"},"modified":"2018-10-14T21:22:09","modified_gmt":"2018-10-14T13:22:09","slug":"opengl_skybox","status":"publish","type":"post","link":"https:\/\/www.bookcard.net\/wordpress\/opengl_skybox\/","title":{"rendered":"OpenGL\u4e4b\u5929\u5e55"},"content":{"rendered":"
\"\"<\/a>
OpenGL\u4e4b\u5929\u5e55<\/figcaption><\/figure>\n

\u300e\u5929\u5e55\u300f\u5176\u662f\u5c31\u5728\u4e00\u4e2a\u5927\u7acb\u65b9\u4f53\u7684\u5185\u4fa7\u8d34\u4e0a\u56fe\u50cf,\u4ece\u800c\u7ed8\u753b\u51fa\u8fdc\u666f\u5730\u5c4f\u7ebf\u6548\u679c,\u7528\u4e8e\u589e\u52a0\u8fdc\u666f\u771f\u5b9e\u611f\u6709\u6548\u800c\u7b80\u5355\u7684\u65b9\u6cd5,\u5929\u5e55\u7684\u4e2d\u5fc3\u4f4d\u4e8e\u300e\u76f8\u673a\u300f\u5f53\u524d\u4f4d\u7f6e,\u6240\u4ee5\u5f53\u300e\u76f8\u673a\u300f\u79fb\u52a8\u65f6\u300e\u5929\u5e55\u300f\u7684\u4e2d\u5fc3\u70b9\u4e5f\u540c\u65f6\u79fb\u52a8.<\/p>\n

\u6f14\u793a\u7a0b\u5f0f:\u4e0b\u8f7d<\/a><\/p>\n

    \n
  1. \u6309\u300e\u5de6\/\u53f3\u300f\u952e\u89c2\u5bdf\u300e\u524d\u3001\u540e\u3001\u5de6\u3001\u53f3\u300f\u7684\u6548\u679c<\/li>\n
  2. \u6309\u300e\u4e0a\/\u4e0b\u300f\u952e\u89c2\u5bdf\u300e\u5929\u3001\u5730\u300f\u7684\u6548\u679c<\/li>\n<\/ol>\n

    \u300e\u5929\u5e55\u300f\u7684\u7b97\u6cd5<\/p>\n

      \n
    1. \u51c6\u5907\u516d\u5f20\u7167\u7247\u5206\u522b\u4e3a\u300e\u5929\u3001\u5730\u3001\u524d\u3001\u540e\u3001\u5de6\u3001\u53f3\u300f\u5e76\u8f7d\u5165\u300e\u8bb0\u5fc6\u4f53\u300f<\/li>\n
    2. \u7ed8\u753b\u4e00\u4e2a\u5927\u300e\u6b63\u65b9\u4f53\u300f\u7531\u516d\u4e2a\u56db\u8fb9\u5f62\u7ec4\u6210<\/li>\n
    3. \u5728\u300e\u6b63\u65b9\u4f53\u300f\u7684\u5185\u5219\u8d34\u4e0a\u56fe\u50cf<\/li>\n
    4. \u300e\u5929\u5e55\u300f\u4e2d\u5fc3\u70b9\u4e0e\u300e\u76f8\u673a\u300f\u4f4d\u7f6e\u540c\u6b65\u79fb\u52a8<\/li>\n<\/ol>\n

       <\/p>\n

      \u6e32\u67d3\u5929\u5e55C\u4ee3\u7801<\/p>\n

      void Render_SKYBOX(SKYBOX_PTR skybox,float xPos,float yPos,float zPos)<\/p>\n

      {<\/p>\n

      glPushMatrix();\/\/ \u5f53\u524d\u77e9\u9635\u5806\u6808\u538b\u6808<\/p>\n

      glTranslatef(xPos, yPos, zPos);\/\/ \u79fb\u52a8\u76f8\u673a\u4f4d\u7f6e<\/p>\n

      glPushAttrib(GL_FOG_BIT | GL_DEPTH_BUFFER_BIT | GL_LIGHTING_BIT);\/\/ \u538b\u5165\u5f53\u524d\u5c5e\u6027<\/p>\n

      glDisable(GL_DEPTH_TEST);<\/p>\n

      glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);\/\/ \u8bbe\u5b9a\u7eb9\u7406\u590d\u76d6\u6a21\u5f0f\u4e3a”\u91cd\u590d\u7eb9\u7406”<\/p>\n

      \/\/ \u9762\u7d0b\u7406\u5ea7\u6a19\u548c\u9802\u9ede\u5ea7\u6a19<\/p>\n

      \/\/ \u5929<\/p>\n

      glBindTexture(GL_TEXTURE_2D, skybox->texture[SKY_TOP].ID);\/\/ \u7ed1\u5b9a\u7eb9\u7406<\/p>\n

      glBegin(GL_QUADS);<\/p>\n

      glTexCoord2f(1.0f, 1.0f); glVertex3f(-skybox->size, skybox->size, -skybox->size);<\/p>\n

      glTexCoord2f(0.0f, 1.0f); glVertex3f(skybox->size, skybox->size, -skybox->size);<\/p>\n

      glTexCoord2f(0.0f, 0.0f); glVertex3f(skybox->size, skybox->size, skybox->size);<\/p>\n

      glTexCoord2f(1.0f, 0.0f); glVertex3f(-skybox->size, skybox->size, skybox->size);<\/p>\n

      glEnd();<\/p>\n

      \/\/ \u5730<\/p>\n

      glBindTexture(GL_TEXTURE_2D, skybox->texture[SKY_BOTTOM].ID);<\/p>\n

      glBegin(GL_QUADS);<\/p>\n

      glTexCoord2f(1.0f, 1.0f); glVertex3f(skybox->size, -skybox->size, -skybox->size);<\/p>\n

      glTexCoord2f(0.0f, 1.0f); glVertex3f(-skybox->size, -skybox->size, -skybox->size);<\/p>\n

      glTexCoord2f(0.0f, 0.0f); glVertex3f(-skybox->size, -skybox->size, skybox->size);<\/p>\n

      glTexCoord2f(1.0f, 0.0f); glVertex3f(skybox->size, -skybox->size, skybox->size);<\/p>\n

      glEnd();<\/p>\n

      \/\/ \u524d<\/p>\n

      glBindTexture(GL_TEXTURE_2D, skybox->texture[SKY_FRONT].ID);<\/p>\n

      glBegin(GL_QUADS);<\/p>\n

      glTexCoord2f(0.0f, 0.0f); glVertex3f(-skybox->size, -skybox->size, -skybox->size);<\/p>\n

      glTexCoord2f(1.0f, 0.0f); glVertex3f(skybox->size, -skybox->size, -skybox->size);<\/p>\n

      glTexCoord2f(1.0f, 1.0f); glVertex3f(skybox->size, skybox->size, -skybox->size);<\/p>\n

      glTexCoord2f(0.0f, 1.0f); glVertex3f(-skybox->size, skybox->size, -skybox->size);<\/p>\n

      glEnd();<\/p>\n

      \/\/ \u540e<\/p>\n

      glBindTexture(GL_TEXTURE_2D, skybox->texture[SKY_BACK].ID);<\/p>\n

      glBegin(GL_QUADS);<\/p>\n

      glTexCoord2f(0.0f, 0.0f); glVertex3f(skybox->size, -skybox->size, skybox->size);<\/p>\n

      glTexCoord2f(1.0f, 0.0f); glVertex3f(-skybox->size, -skybox->size, skybox->size);<\/p>\n

      glTexCoord2f(1.0f, 1.0f); glVertex3f(-skybox->size, skybox->size, skybox->size);<\/p>\n

      glTexCoord2f(0.0f, 1.0f); glVertex3f(skybox->size, skybox->size, skybox->size);<\/p>\n

      glEnd();<\/p>\n

      \/\/ \u53f3<\/p>\n

      glBindTexture(GL_TEXTURE_2D, skybox->texture[SKY_RIGHT].ID);<\/p>\n

      glBegin(GL_QUADS);<\/p>\n

      glTexCoord2f(1.0f, 0.0f); glVertex3f(skybox->size, -skybox->size, skybox->size);<\/p>\n

      glTexCoord2f(1.0f, 1.0f); glVertex3f(skybox->size, skybox->size, skybox->size);<\/p>\n

      glTexCoord2f(0.0f, 1.0f); glVertex3f(skybox->size, skybox->size, -skybox->size);<\/p>\n

      glTexCoord2f(0.0f, 0.0f); glVertex3f(skybox->size, -skybox->size, -skybox->size);<\/p>\n

      glEnd();<\/p>\n

      \/\/ \u5de6<\/p>\n

      glBindTexture(GL_TEXTURE_2D, skybox->texture[SKY_LEFT].ID);<\/p>\n

      glBegin(GL_QUADS);<\/p>\n

      glTexCoord2f(1.0f, 0.0f); glVertex3f(-skybox->size, -skybox->size, -skybox->size);<\/p>\n

      glTexCoord2f(1.0f, 1.0f); glVertex3f(-skybox->size, skybox->size, -skybox->size);<\/p>\n

      glTexCoord2f(0.0f, 1.0f); glVertex3f(-skybox->size, skybox->size, skybox->size);<\/p>\n

      glTexCoord2f(0.0f, 0.0f); glVertex3f(-skybox->size, -skybox->size, skybox->size);<\/p>\n

      glEnd();<\/p>\n

      glPopAttrib();\/\/ \u5f39\u51fa\u5f53\u524d\u5c5e\u6027<\/p>\n

      glEndList();<\/p>\n

      glPopMatrix();\/\/ \u5f53\u524d\u77e9\u9635\u5806\u6808\u51fa\u6808<\/p>\n

      }<\/p>\n","protected":false},"excerpt":{"rendered":"

      \u300e\u5929\u5e55\u300f\u5176\u662f\u5c31\u5728\u4e00\u4e2a\u5927\u7acb\u65b9\u4f53\u7684\u5185\u4fa7\u8d34\u4e0a\u56fe\u50cf,\u4ece\u800c\u7ed8\u753b\u51fa\u8fdc\u666f\u5730\u5c4f\u7ebf\u6548\u679c,\u7528\u4e8e\u589e\u52a0\u8fdc\u666f\u771f\u5b9e\u611f\u6709\u6548\u800c\u7b80\u5355\u7684\u65b9\u6cd5,\u5929\u5e55 … <\/p>\n

      \u7e7c\u7e8c\u95b1\u8b80 OpenGL\u4e4b\u5929\u5e55<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[62],"tags":[50],"class_list":["post-3851","post","type-post","status-publish","format-standard","hentry","category-opengl","tag-opengl","entry"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/3851","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/comments?post=3851"}],"version-history":[{"count":1,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/3851\/revisions"}],"predecessor-version":[{"id":3854,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/3851\/revisions\/3854"}],"wp:attachment":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/media?parent=3851"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/categories?post=3851"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/tags?post=3851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}