質問編集履歴
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OpenGL 回転を原点を中心に回転する方法
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**オブジェクトを中心に位置を固定でそのまま回転**させたいのですがどうすればいいのでしょうか？今起きてる現象は**視点を中心に回転**するということなのですが自分**は原点を中心に回**転させたいです。
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//視点を中心に回転してしまっている現状の画像
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Github: https://github.com/Shigurechan/OpenGL
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//頂点データ
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vertex[0].Position[0] = -1;
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vertex[0].Position[1] = 1;
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vertex[0].Position[2] = -10;
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vertex[1].Position[0] = -1;
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vertex[1].Position[1] = -1;
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vertex[1].Position[2] = -10;
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vertex[2].Position[0] = 1;
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vertex[2].Position[1] = -1;
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vertex[2].Position[2] = -10;
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vertex[3].Position[0] = 1;
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vertex[3].Position[1] = 1;
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vertex[3].Position[2] = -10;
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```
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```cpp
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//回転行列
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//回転行列
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void Game::Set_rotate(float xx,float yy,float zz,float r)
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{
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glm::quat someQuat = glm::
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glm::quat someQuat = glm::angleAxis(r,glm::vec3(xx,yy,zz));
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glm::mat4 ro = glm::
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glm::mat4 ro = glm::toMat4(someQuat);
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memcpy(rotate, glm::value_ptr(ro), sizeof(float) * 16);
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}
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```
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```cpp
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//ワールド行列を計算
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void Game::CreateWorldMatrix()
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{
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glm::mat4x4 t = glm::make_mat4(move) * glm::make_mat4(scale) * glm::make_mat4(rotate);
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memcpy(wordlMatrix,glm::value_ptr(t),sizeof(float) * 16);
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}
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```
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