I downloaded the Amnesia demo (the installer filename says version 1.0.1... seems kinda old?), and I'm trying to run it in 64-bit Ubuntu 11.04, with the integrated Sandybridge GPU in my laptop.
Unfortunately, based on using apitrace
to debug it, it seems like Amnesia is calling glCompressedTexImage2D() with internalFormat=GL_COMPRESSED_S3TC_DXT1_EXT, even though GL_EXT_texture_compression_s3tc isn't advertised in the extension string by the Intel graphics driver. (I'm using the latest version I can, installed from the xorg-edgers repository
Is it possible to run without s3tc compression? If it isn't, can't Amnesia exit with a useful error message when it isn't advertised?
I'm assuming this is the issue that's filling up my hpl.log (attached) with lines like this:
ERROR: Couldn't load material 'entities/lamp/torch_static01/torch_static01.mat'
ERROR: Could not create GL texture /opt/AmnesiaDemo/particles/materials/ps_torch_fire.dds