Hi all... just posting this to see if any mac users have noticed the same...

My new mac mini running Yosemite will not display my 16k textures... if I downsize to 8k they appear but it's a backward step.

I've only just noticed this as I normally use VTs

What is the value of Maximum Texture size reported by Help > OpenGL Info?
Which Mac mini model are you using?

This is typical of a video card driver not supporting the texture size.

I had this problem a very long time ago, but I can't tell on which system and which hardware.
However, I think I could reproduce this at work, on the very poorly supported 13" MacBook Pro with Yosemite (or the previous OS X)
I could even totally freeze that MacBook with Celestia on it. And it's the fault of the portable's configuration by our poor computer support at work.
This MacBook really sucks ! I don't think that the bug is on Celestia's side.

At home, I'm currently on an old Mac mini 2010, and an old 13" MacBookPro 2010, both with OS X Snow Leopard.
I'm using that special ultra powerfull Celestia from Da Woon (made with my help a few years ago).
That version never got published (what a shame !).
It is *ABSOLUTLY ROCK SOLID*. Not a single glitch !
That special version could not even be crashed by any means on my two home computers ! (and I did tried, if Da Woon remember)
Really, I don't think I have any piece of software as stable as this version of Celestia (or maybe LaTeX).

_________________
"Well! I've often seen a cat without a grin", thought Alice; "but a grin without a cat! It's the most curious thing I ever saw in all my life!"

Yes... Snow Leopard was able to display these textures with no problems.

My mini is a (Late 2014)
Graphics Intel Iris 1536 MB

Display...

Displays:
PHL 234E5:
Resolution: 1920 x 1080 @ 60Hz (1080p)
Pixel Depth: 32-Bit Color (ARGB8888)

Tis a bummer... oh well.

Help/Open GL info...

Vendor: Intel Inc.
Renderer: Intel Iris OpenGL Engine
Version: 2.1 INTEL-10.6.33
GLSL version: 1.20

Max simultaneous textures: 8
Max texture size: 16384
Max cube map size: 16384
Point size range: 1.000000 - 255.875000

Extensions:
GL_ARB_vertex_buffer_object: Supported
GL_ARB_texture_compression: Supported
GL_EXT_texture_compression_s3tc: Supported
GL_ARB_texture_border_clamp: Supported
GL_EXT_texture_edge_clamp: -
GL_ARB_texture_cube_map: Supported
GL_SGIS_generate_mipmap: Supported
GL_EXT_rescale_normal: Supported
GL_ARB_point_sprite: Supported

GL_ARB_vertex_program: Supported
GL_NV_vertex_program: -
GL_NV_fragment_program: -
GL_NV_register_combiners: -
GL_ARB_texture_env_dot3: Supported
GL_ARB_texture_env_combine: Supported
GL_EXT_texture_env_combine: -
GL_ARB_shading_language_100: Supported
GL_ARB_shader_objects: Supported
GL_ARB_vertex_shader: Supported
GL_ARB_fragment_shader: Supported

16k textures are supported:



It's not clear to me why they aren't working for you (and I don't have a similar environment to reproduce unfortunately).
Do you see any strange output on your Celestia console (~ key)?

I get the same with a 16k jpg too...

here's the console (should be South America)...




Dunno why there's three attachments?

I am a tad frustrated with this as I've spent some time converting the NASA monthly maps to dds (via Squish - thanks dirkpitt!)

8k doesn't cut it for me.

Back to the VTs.

If I remember well, it is the DDS textures that are causing problems to some recent Mac OS X drivers.
These textures were crashing the whole computer !

That's what I've experienced with the 13" Mac BookPro from my work place (**VERY BADLY** configured by the computer team !).

_________________
"Well! I've often seen a cat without a grin", thought Alice; "but a grin without a cat! It's the most curious thing I ever saw in all my life!"

It looks more of a bug in MacOS...

here's finder with two textures... the 16k is displayed as a generic icon.