From Ohm

3D Texture Data

If a 3D texture object has been bound, the data of the texture is uploaded as follows:

glPixelStorei(GL_UNPACK_ALIGNMENT,1);

glTexImage3D(GL_TEXTURE_3D,      // 3D texture
             0,                  // level 0 (for mipmapping)
             GL_LUMINANCE,       // pixel format of texture
             width,height,depth, // texture size
             0,                  // border size 0
             GL_LUMINANCE,       // pixel format of data supplied
             GL_UNSIGNED_BYTE,   // pixel storage type of data supplied
             volume);            // pointer to data chunk
pixel formatcomponents
GL_LUMINANCE1
GL_RGB3
GL_RGBA4
GL_ALPHA1
GL_LUMINANCE_ALPHA2

The size of a 3D texture is recommended to be a power of 2!

Retrieved from http://schorsch.efi.fh-nuernberg.de/roettger/index.php/MedicalVisualization/3DTextureData

Page last modified on December 26, 2016, at 05:00 PM