If you are using Intel graphics chip for your graphics needs on Ubuntu then probably you need to install OpenGL texture compression library to gain proper graphics performance and quality out of your graphics card. By default this library is not available on Ubuntu due to license, IP or distribution restrictions. The library provides the following OpenGL extensions under Mesa3D OpenGL implementation:
GL_EXT_texture_compression_s3tc
GL_S3_s3tc
These OpenGL extensions provide support for efficient graphics texture uploading to your graphics processing unit making graphics applications utilize its memory bandwidths efficiently and productively to deliver best performance. Consequently, almost all games and applications make use of these OpenGL extensions. The library can be compiled from the source code under a GNU Linux distribution of choice easily. For Ubuntu based distributions the pre compiled and ready to be installed 32 Bit and 64 Bit libraries packages can be downloaded from the following link:
http://onthim.blogspot.com/p/onthim-downloads.html
Cheers,
Imam
GL_EXT_texture_compression_s3tc
GL_S3_s3tc
These OpenGL extensions provide support for efficient graphics texture uploading to your graphics processing unit making graphics applications utilize its memory bandwidths efficiently and productively to deliver best performance. Consequently, almost all games and applications make use of these OpenGL extensions. The library can be compiled from the source code under a GNU Linux distribution of choice easily. For Ubuntu based distributions the pre compiled and ready to be installed 32 Bit and 64 Bit libraries packages can be downloaded from the following link:
http://onthim.blogspot.com/p/onthim-downloads.html
Cheers,
Imam