Posts by john71

by john71
13.11.2017, 21:05
Forum: Help Central
Topic: How to generate 20 million stars for a spiral galaxy?
Replies: 4
Views: 100

Re: How to generate 20 million stars for a spiral galaxy?

I agree with selden. If stc->dat conversion is possible, then with 400MB data and running the 64 bit version of Celestia it should not be a problem. By the way in a few years time the ESO-GAIA data (1 billion stars!) will be available, so it is time to start experimenting with huge data files. Is th...
by john71
12.11.2017, 20:25
Forum: Help Central
Topic: How to generate 20 million stars for a spiral galaxy?
Replies: 4
Views: 100

How to generate 20 million stars for a spiral galaxy?

This topic is about the MCL2STC cluster generator: link https://celestia.space/forum/viewtopic.php?f=23&t=16494&p=131412&hilit=mcluster#p131412 . How can I create using MCL2STC 20 million stars for a spiral galaxy? I succeeded creating a cluster with 500 000 stars, but the cluster's shap...
by john71
11.11.2017, 20:28
Forum: Development
Topic: New 64 bit 1.7 version suggestions and bugs
Replies: 62
Views: 1936

Re: New 64 bit 1.7 version suggestions and bugs

Thanks! I'll try it right away!
by john71
22.10.2017, 20:47
Forum: Textures
Topic: Heights and models
Replies: 6
Views: 154

Re: Heights and models

Is it possible to use bump or normal maps simultaneously with a 3D-model? Use Anim8tor for basic UV mapping and after that cmodview (generate tangents). You may have to edit the ascii cmod file. But in my opinion it is quite hard to match the normal map of a spherical object with the normal map of ...
by john71
22.10.2017, 13:50
Forum: Textures
Topic: Heights and models
Replies: 6
Views: 154

Re: Heights and models

Bump or normal maps are two dimensional optical illusions, they are just virtual shadows and lights basically. 3D models are "real" objects in the virtual space, with "real" shadows...normal maps on 3D models are also illusions...specular maps are the the closest thing to a "...
by john71
17.10.2017, 19:36
Forum: Development
Topic: Celestia and virtual reality CAVE
Replies: 28
Views: 7681

Re: Celestia and virtual reality CAVE

By the way, I'm going to buy a VR headset next year. Can I use Celestia with it?
by john71
17.10.2017, 19:34
Forum: Petit Bistro Entropy
Topic: Oculus Rift (Virtual Reality Headset)
Replies: 4
Views: 1599

Re: Oculus Rift (Virtual Reality Headset)

By the way, I'm going to buy a VR headset next year. Can I use Celestia with it?
by john71
03.10.2017, 15:37
Forum: Bugs
Topic: I downloaded 1.7, found the Bug, is the star browser Bug.
Replies: 1
Views: 133

Re: I downloaded 1.7, found the Bug, is the star browser Bug.

Yes, there is a bug in the Star browser in Celestia 1.7 64 bit.

http://celestia.space/forum/viewtopic.php?f=4&t=17731&start=20

Added after 1 minute 38 seconds:
Celestia 1.7 doesn't "see" add-on stars it seems.
by john71
01.10.2017, 14:15
Forum: Modelling
Topic: Convert CMOD Files to OBJ?
Replies: 5
Views: 132

Re: Convert CMOD Files to OBJ?

Well, isn't that illegal outside of like...Somalia? :)
by john71
01.10.2017, 08:42
Forum: Modelling
Topic: Convert CMOD Files to OBJ?
Replies: 5
Views: 132

Re: Convert CMOD Files to OBJ?

Thanks for the link.

I don't really understand why is it impossible to have a free cmod->obj converter when cmodview can open obj files and saves them in cmod format...

Also cmod->3ds conversion should be possible if there is a working 3ds->cmod conversion utility...

:think:
by john71
25.09.2017, 20:26
Forum: Bugs
Topic: White color texture error on moving gas giant clouds
Replies: 9
Views: 257

Re: White color texture error on moving gas giant clouds

No, both versions are producing the same texture bug. "Jupiter" "StarX" { Texture "jupiter.*" HazeColor [ 0.4 0.45 0.5 ] HazeDensity 0.3 Radius 71492 Oblateness 0.0649 EllipticalOrbit { Period 11.8622 SemiMajorAxis 5.2034 Eccentricity 0.0484 Inclination 1.3053 Ascending...
by john71
25.09.2017, 18:54
Forum: Bugs
Topic: White color texture error on moving gas giant clouds
Replies: 9
Views: 257

Re: White color texture error on moving gas giant clouds

1.) If there is no ring, there is no texture error. Why? 2.) If I change the "empty.png" texture to a Jupiter surface texture, the "white texture" error disappears, but - as you wrote - "unpredictable things" are being drawn. But how can adding a ring to the planet caus...
by john71
24.09.2017, 08:07
Forum: Add-on releases
Topic: Project "Celestia Origin"
Replies: 116
Views: 3064

Re: Project "Celestia Origin"

Yes, it is a decade old I think. I'm sure yours is better and much more up to date. Nice work!
by john71
24.09.2017, 07:59
Forum: Add-on releases
Topic: Project "Celestia Origin"
Replies: 116
Views: 3064

Re: Project "Celestia Origin"

Very nice!

There is an older collection too (torrent file 7 GB):

Celestia Extras SolarSystemV1 iso.torrent.zip
(36.97 KiB) Downloaded 17 times
by john71
23.09.2017, 14:28
Forum: Bugs
Topic: White color texture error on moving gas giant clouds
Replies: 9
Views: 257

Re: White color texture error on moving gas giant clouds

OK, here is the recreation of the bug. It creates a star system called "StarX" with one Jupiter-like planet with giant rings. You can see it from approximately 3800000 km from the planet as a white texture error. Here is the stc and ssc file (you have to use the 80 mb textures from the pre...
by john71
22.09.2017, 04:40
Forum: Bugs
Topic: White color texture error on moving gas giant clouds
Replies: 9
Views: 257

Re: White color texture error on moving gas giant clouds

The textures are 84 MB. I hope it can be uploaded, I try anyway. I use an Intel i5/Radeon 1GB/Windows 10 64 bit system, Celestia 1.7 64 bit. This uploaded add-on WORKS for me, this is not the problem. The problem is that after I added a large dds/png ring to the planet it produced this strange white...
by john71
21.09.2017, 21:36
Forum: Bugs
Topic: White color texture error on moving gas giant clouds
Replies: 9
Views: 257

White color texture error on moving gas giant clouds

I found this "moving" Jupiter cloud add-on:

JupClouds.ssc.zip
(703 Bytes) Downloaded 6 times


Using it I made a fictional gas giant with rings and moving cloud strips.

It seems that adding rings ruined it.

White error gas giant.png


What can be the problem?

Without rings it works perfectly!
by john71
17.09.2017, 08:11
Forum: Add-on development
Topic: ISS from zarya
Replies: 13
Views: 328

Re: ISS from zarya

bh, Oh. My. God. Whoa. Very nice add-on!
by john71
14.09.2017, 17:09
Forum: Add-on development
Topic: Torusplanet
Replies: 7
Views: 306

Re: Torusplanet

OK, here we go. I was able to make the normalmap work...kinda. Torusnormalmaperror.png Help! What is going on? Have you ever seen something similar in Celestia? :weirdface: I use dxt5nm normalmap texture in the cmod file, and the "tangent f3" command. I generated the tangents in cmodview. ...
by john71
12.09.2017, 18:21
Forum: Add-on development
Topic: Torusplanet
Replies: 7
Views: 306

Re: Torusplanet

It is not finished yet, I'm working on adding a normal map to the add-on.

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