Celestia Forums

Hi Chris,

i use Celestia 1.3 and the V380 Nebula Add-On but i can`t see the Nebula from earth .what can i do to see this nebula from earth like your screenshots in your gallery?

My Sys:
AMD Athlon XP2100+
GeForce2mx400
Deto: 31.40
1024 Meg DDR-RAM
WinXP Prof. SP1

Vendor: NVIDIA Corporation
Renderer: GeForce2 MX/AGP/3DNOW!
Version: 1.3.1
Max simultaneous textures: 2
Max texture size: 2048

Supported Extensions:
GL_ARB_imaging
GL_ARB_multitexture
GL_ARB_texture_compression
GL_ARB_texture_cube_map
GL_ARB_texture_env_add
GL_ARB_texture_env_combine
GL_ARB_texture_env_dot3
GL_ARB_transpose_matrix
GL_S3_s3tc
GL_EXT_abgr
GL_EXT_bgra
GL_EXT_blend_color
GL_EXT_blend_minmax
GL_EXT_blend_subtract
GL_EXT_clip_volume_hint
GL_EXT_compiled_vertex_array
GL_EXT_draw_range_elements
GL_EXT_fog_coord
GL_EXT_multi_draw_arrays
GL_EXT_packed_pixels
GL_EXT_paletted_texture
GL_EXT_point_parameters
GL_EXT_rescale_normal
GL_EXT_secondary_color
GL_EXT_separate_specular_color
GL_EXT_shared_texture_palette
GL_EXT_stencil_wrap
GL_EXT_texture_compression_s3tc
GL_EXT_texture_edge_clamp
GL_EXT_texture_env_add
GL_EXT_texture_env_combine
GL_EXT_texture_env_dot3
GL_EXT_texture_cube_map
GL_EXT_texture_filter_anisotropic
GL_EXT_texture_lod
GL_EXT_texture_lod_bias
GL_EXT_texture_object
GL_EXT_vertex_array
GL_EXT_vertex_weighting
GL_IBM_texture_mirrored_repeat
GL_KTX_buffer_region
GL_NV_blend_square
GL_NV_evaluators
GL_NV_fence
GL_NV_fog_distance
GL_NV_light_max_exponent
GL_NV_packed_depth_stencil
GL_NV_register_combiners
GL_NV_texgen_emboss
GL_NV_texgen_reflection
GL_NV_texture_env_combine4
GL_NV_texture_rectangle
GL_NV_vertex_array_range
GL_NV_vertex_array_range2
GL_NV_vertex_program
GL_NV_vertex_program1_1
GL_SGIS_generate_mipmap
GL_SGIS_multitexture
GL_SGIS_texture_lod
GL_WIN_swap_hint
WGL_EXT_swap_control

Install this addon and you will see it fine...

http://www.celestiaproject.net/celestia/files/ngc1999.zip

Yu will however have to uninstall the old addon by removing the stc file associated to it...I will make updates soon so that the new version takes advantage of the planetary system...

OR you could remove the nebula rendering in the ssc file for V380 and still retain the planetary system...removing the nebula reference will take away the nebulas double exposure you will see while exploring that system...

You will however have to change either the stc or dsc distance reference to match one or the other...I use 1500 ly distance...

Update: I used these specs for the stc file...

# V380 Ori
300005 {
RA 83.98
Dec -6.43
Distance 1499.5
SpectralType "A2Ia"
AppMag 10.5
}

and replaced the dsc distance with 1500 ly...There are variations on this distance but I believe that is correct...

There is a problem with putting objects too close to a nebula using the dsc format...it gets cut off at the center...a clipping occurs similar to being too close to a planets surface...so be leary of this I dont think thats a fixable glitch...

Thanks Rassilon for the fast reply. It works fine, thanks.

It works fine ...? It works great !

Thanks a million, Ras, it's really a good improvement for Celestia. Soon, we'll be able to see as Hubble see...

I've "discovered" something weird... One would better to keep the two plugins installed !

Since the two aren't exactly in same position, it gives an awfull depth to the nebula, looking very pretty...

Give it a shoot, you'll be as astonished as me.