어렵다. 함수들 하나하나 찾아보고 머하는건지 맞춰봐야 할 듯.
| Name glGenTextures — generate texture names C Specification void glGenTextures( GLsizei n, GLuint * textures); Parameters n Specifies the number of texture names to be generated. textures Specifies an array in which the generated texture names are stored. |
[링크 : https://registry.khronos.org/OpenGL-Refpages/gl4/html/glGenTextures.xhtml]
| Name glBindTexture — bind a named texture to a texturing target C Specification void glBindTexture( GLenum target, GLuint texture); Parameters target Specifies the target to which the texture is bound. Must be one of GL_TEXTURE_1D, GL_TEXTURE_2D, GL_TEXTURE_3D, GL_TEXTURE_1D_ARRAY, GL_TEXTURE_2D_ARRAY, GL_TEXTURE_RECTANGLE, GL_TEXTURE_CUBE_MAP, GL_TEXTURE_CUBE_MAP_ARRAY, GL_TEXTURE_BUFFER, GL_TEXTURE_2D_MULTISAMPLE or GL_TEXTURE_2D_MULTISAMPLE_ARRAY. texture Specifies the name of a texture. |
[링크 : https://registry.khronos.org/OpenGL-Refpages/gl4/html/glBindTexture.xhtml]
| void glTexStorage2D( GLenum target, GLint levels, GLint internalformat, GLsizei width, GLsizei height ); Valid targets: GL_TEXTURE_2D, GL_TEXTURE_RECTANGLE, GL_TEXTURE_CUBE_MAP, or GL_TEXTURE_1D_ARRAY. For 1D array textures, the number of array layers in each mipmap level is the height value. For rectangle textures, the number of mipmap levels must be 1. void glTexStorage3D( GLenum target, GLint levels, GLint internalformat, GLsizei width, GLsizei height, GLsizei depth ); Valid targets: GL_TEXTURE_3D, GL_TEXTURE_2D_ARRAY, GL_TEXTURE_CUBE_MAP_ARRAY (this requires GL 4.0 or ARB_texture_cube_map_array) For 2D array textures, the number of array layers in each mipmap level is the depth value. For 2D cubemap array textures, the number of cubemap layer-faces is the depth, which must be a multiple of 6. Therefore, the number of individual cubemaps in the array is given by depth / 6. |
[링크 : https://www.khronos.org/opengl/wiki/Texture_Storage]
| glTexImage2D(GL_TEXTURE_RECTANGLE, 0, internalformat, width, height, 0, format, type, data); |
[링크 : https://www.khronos.org/opengl/wiki/Rectangle_Texture]
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