Building Mac OS X version with XCode under Panther

[HankR]

Harrie,

The complier warnings you cited are just due to sloppiness on my part. One of these days I'll go through and clean them up. But I don't believe they are related to your keyboard problem.

The modifierFlags in the Event object are set by the OS input handler. If, as your test demonstrates, the main keyboard digit keys on your Powerbook are returning modifierFlags with NSNumericPadKeyMask set, then the Celestia code would be working correctly to invoke the functions assigned to the numeric keypad digit keys rather than the functions assigned to the main keyboard digit keys. If 1.3.0-a1 works differently it's probably due to a bug that's been fixed.

Perhaps Apple did this so that software which assumed the availability of a numeric keypad would work on Powerbooks using the main keyboard digit keys.

- Hank

[HarrieS]

Ehm, shouldn't that be a single & in the NSNumericPadKeyMask test?

Harrie

[HankR]

Ehm, shouldn't that be a single & in the NSNumericPadKeyMask test?

Ah, yes, I believe you're right! This is a problem both in 'keyDown' at 'CelestiaOpenGLView.m:146' and in 'toCelestaKey' at 'CelestiaAppCore.mm:92'. It must be fixed, of course, but I don't understand how it would produce the effect we're seeing. Does this fix correct the problem on your Powerbook?

- Hank

[HarrieS]

Yes, it does fix it. The explanation is I think as follows: the lower bits of the modifierflags are according to the Apple documentation hardware dependent. (No specification of what the bits would mean, though.) Probably one of these bits is set whenever a "small" keyboard is used. Thus,the flags are non-zero, or in C-parlance "true".
Since the NSNumericpadKeyMask is also non-zero, hence true, this always generates a "true" test when the Boolean AND is used instead of the logical AND.

My powerbook can simulate a numeric keypad, by the way, by pressing a function key while typing specific keys on the keyboard, roughly the block of keys below the 7-8-9 keys. They now generate proper keypad events.

Well, let's hope this adequately solves the problem.

Harrie

[HankR]

Harrie,

You must be right about the hardware-dependent lower bits in modifierFlags. That would explain the problem. Glad you caught it.

Thanks for your help. Let me know if you see any other problems.

- Hank

[BusError]

I still don't get any bumpmapping. the rendering path auto select itself to "dot3 + arb" and I so get the specular light on the oceans, but my bumpmaps for the moon and mars are displayed as blue/red hues.

Anyone managed to get the bumpmapping to work ?

[HankR]

BusError,

Selden Ball's notes on "Creating Textures for Celestia" says:

Code: Select all

3.2.2: Bumpmaps and Normalmaps.

 Bumpmaps and Normalmaps make a surface look wrinkled. 

For BumpMaps, use the directives
BumpMap   

BumpHeight

For a Bumpmap, provide a grey-scale image that's white at the highest  altitudes and black at the lowest. Celestia internally converts Bumpmaps into Normalmaps.

For NormalMaps, use the directive
NormalMap   

For a Normalmap, provide a full color image. The R, G and B channels define the amplitudes of the surface normal vecors  in the X, Y and Z directions respectively for each pixel.   

In this usage, "Normal" is an abbreviation for "Surface Normal Vectors". They're the directions which are perpendicular to the wrinkled surface at each pixel's location.


Both BumpMaps and NormalMaps seem to work for me using the "NV C + ARB VP" rendering path. Using the "DOT3 + ARB VP" rendering path I see the blue/red symptom you describe. Could be a bug in the DOT3 rendering code.

- Hank

[selden]

Guys,

I've just added a clarification about bump and normal maps which would seem to be relevant to this issue.

Internally, Celestia converts bumpmaps into normalmaps for use by your graphics hardware. Since bumpmap images can contain only 256 height values, this may cause problems when displaying a surface at high resolution. You can provide your own NormalMap to improve on this.

[BusError]

I just checked and the moon bumo map is indeed a grayscale texture, so it appears it's converted to a normalmap, and is then displayed incorrectly.

I'm using a 9700 Pro BTW. So the NV path will not work

[guest]

hi,

could someone make a pre-compiled version of celestia 1.3.1
available in a .dmg as some of us aren't technically minded
enough to use x-code or dont have panther.

thanks

[HankR]

I've just uploaded Celestia 1.3.1 for MacOS X to SourceForge.

You can download it from here:
http://sourceforge.net/project/showfiles.php?group_id=21302&package_id=47943

- Hank

[The_Tick]

Thanks !

But could someone post a direct link to one of the mirrors ?
I haven't been able to access prdownloads.sourceforge.net for two days.
All I get is a blank page...

[The_Tick]

I have managed to download it.
However, I have two problems :

1) Celestia apparently doesn't remember my settings
2) Mercury, Moon, Mars and Pluto are rainbow-colored[/img]

[Matt McIrvin]

I have managed to download it.
However, I have two problems :

1) Celestia apparently doesn't remember my settings
2) Mercury, Moon, Mars and Pluto are rainbow-colored[/img]

I'm seeing both of these problems too. They're things that also appeared initially with the first Cocoa release.

(1) seems to be a problem for some preferences but not others.

(2) is probably because your video card doesn't support bump maps. It can be fixed. Go into solarsys.ssc and comment out the "BumpMap" lines for the rainbowed objects by putting a pound and space before the world "BumpMap" like so:

# BumpMap "mercurybump.*"

etc.

[Matt McIrvin]

By the way, the few problems aside, this is an absolutely tremendous release, with a gigantic number of new features and some bug fixes. The Mac version finally fixes the long-standing orbit display bug, and the implementation of oblate atmospheres is something I've wanted to see for a long time.

I hope that the final Mac OS X release of 1.3.1 will have a prominent link on Chris's page.

[The_Tick]

(2) is probably because your video card doesn't support bump maps

Crap. I have an ATI Radeon 9000. Must be the drivers again. I should have stuck with Nvidia... Anyway, thanks, that helped.

this is an absolutely tremendous release, with a gigantic number of new features and some bug fixes

I agree. I hadn't touched Celestia since 1.2.5 and I see the difference.

[BusError]

(2) is probably because your video card doesn't support bump maps

Crap. I have an ATI Radeon 9000. Must be the drivers again. I should have stuck with Nvidia... Anyway, thanks, that helped.

I would say that a 9000, or my 9700 Pro have to support bumpmaps! Those are not exactly rage 128.

What extension is used to make them ? Heres the list from my 9700 :

Code: Select all

ATI Radeon 9700 OpenGL Engine    
Vendor Name                      ATI Technologies Inc.
Version                          1.3 ATI-1.3.4
Renderer Name                    ATI Radeon 9700 OpenGL Engine
OpenGL Extensions                
                                 GL_ARB_transpose_matrix
                                 GL_ARB_vertex_program
                                 GL_ARB_vertex_blend
                                 GL_ARB_window_pos
                                 GL_EXT_multi_draw_arrays
                                 GL_EXT_clip_volume_hint
                                 GL_EXT_rescale_normal
                                 GL_EXT_draw_range_elements
                                 GL_EXT_fog_coord
                                 GL_APPLE_client_storage
                                 GL_APPLE_specular_vector
                                 GL_APPLE_transform_hint
                                 GL_APPLE_packed_pixels
                                 GL_APPLE_fence
                                 GL_APPLE_vertex_array_object
                                 GL_APPLE_vertex_program_evaluators
                                 GL_APPLE_element_array
                                 GL_APPLE_flush_render
                                 GL_NV_texgen_reflection
                                 GL_NV_light_max_exponent
                                 GL_IBM_rasterpos_clip
                                 GL_SGIS_generate_mipmap
                                 GL_APPLE_texture_range
                                 GL_APPLE_vertex_array_range
                                 GL_APPLE_ycbcr_422
                                 GL_APPLE_pixel_buffer
                                 GL_APPLE_float_pixels
                                 GL_ARB_depth_texture
                                 GL_ARB_fragment_program
                                 GL_ARB_imaging
                                 GL_ARB_multisample
                                 GL_ARB_multitexture
                                 GL_ARB_shadow
                                 GL_ARB_shadow_ambient
                                 GL_ARB_texture_border_clamp
                                 GL_ARB_texture_compression
                                 GL_ARB_texture_cube_map
                                 GL_ARB_texture_env_add
                                 GL_ARB_texture_env_combine
                                 GL_ARB_texture_env_crossbar
                                 GL_ARB_texture_env_dot3
                                 GL_ARB_texture_mirrored_repeat
                                 GL_ATI_blend_equation_separate
                                 GL_ATI_blend_weighted_minmax
                                 GL_ATI_text_fragment_shader
                                 GL_ATI_texture_env_combine3
                                 GL_ATI_texture_mirror_once
                                 GL_ATI_separate_stencil
                                 GL_EXT_abgr
                                 GL_EXT_bgra
                                 GL_EXT_blend_func_separate
                                 GL_EXT_blend_minmax
                                 GL_EXT_blend_subtract
                                 GL_EXT_blend_color
                                 GL_EXT_compiled_vertex_array
                                 GL_EXT_secondary_color
                                 GL_EXT_stencil_wrap
                                 GL_EXT_texture_compression_s3tc
                                 GL_EXT_texture_env_add
                                 GL_EXT_texture_lod_bias
                                 GL_EXT_texture_rectangle
                                 GL_EXT_texture_filter_anisotropic
                                 GL_NV_blend_square
                                 GL_SGIS_texture_edge_clamp
                                 GL_SGIS_texture_lod
Display Mask                     1 (0x00000001)
Renderer ID                      137216 (0x00021800)
Off Screen                       No
Full Screen                      Yes
Hardware Accelerated             Yes
Robust                           No
Backing Store                    No
MP Safe                          Yes
Window                           Yes
Multi Screen                     No
Compliant                        Yes
Screen Mask                      Yes
Buffer Modes                     15 (0x0000000f)
Color Buffer Modes               176194560 (0x0a808400)
Accum Buffer Modes               8421376 (0x00808000)
Depth Buffer Modes               7169 (0x00001c01)
Stencil Buffer Modes             129 (0x00000081)
Max Aux Buffers                  2 (0x00000002)
Total Video Memory               134217728 (0x08000000)
Total Texture Memory             124936192 (0x07726000)
Generic                          


[Rigel]

Thank you a lot !

To all of you who are developing the OS X version of Celestia.

I was waiting for this release for a long time.

1.3.1 is a great release !

Thank you again !

Pascal

[chris]

I completely missed this thread . . . I'll update the link on the downloads page later today. Thanks for the work on the new Mac version!

--Chris

[Cham]

Is Celestia 1.3.1 for OS X multi-processor aware ?