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trouble with 2d array and compressed image

Question asked by sandro.digaia on Mar 23, 2013
Latest reply on Mar 23, 2013 by sandro.digaia

Hi all,

 

I'm sandro, and I'm new of this blog. I'm implementing 2d array texturing with compressed images, but it seems doesn't work. I'm programming on 3870HD

driver 13.1. Does this video card support 2d array texturing with compressed images? Here my code...

 

// dummy texture creation

 

     Width = Descriptor->width;

     Height = Descriptor->height;

     Descriptor->source_format = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;

     Descriptor->depth = 16;

 

     glCompressedTexImage3D(GL_TEXTURE_2D_ARRAY, i, Descriptor->source_format, Descriptor->width, Descriptor->height, Descriptor->array_size, 0,Width * Height * 4, NULL);

 

// store all mipmap levels

     Offset = 0;

     for (UINT i = 0; i < Descriptor->num_mips && (Width || Height); ++i)

     {

          Size = ((Width + 3) / 4) * ((Height + 3) / 4) * Descriptor->depth;

          glCompressedTexSubImage3D(GL_TEXTURE_2D_ARRAY, 0, 0, 0, i, Width, Height, 1, Descriptor->source_format, Size, Descriptor->data[0] + Offset);

 

          Offset += Size;

          Width /= 2;

          Height /= 2;

     }

 

Is this code ok? If I'm using regular compressed imgae without array all is fine!

Thanks in advance!

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