Space Graphics Toolkit & Planets

The video looks like a backdrop.

 

When I want make some Real Stars, that are exists in Real Life, how can I spawn the Object in the correct Position?

 

What does that mean?

 

What kind of object?

You cannot assign the Prefabs list because it's a read only property. You must read the list property and manipulate it directly using the list methods. You need to study more C# if you don't understand.

 

Hey Carlos

Just noticed a bit of a graphical bug with the shared material feature of the atmosphere. I've managed to recreate it in a new project with the earth sized planet scene. You can see in the below gif it is not smoothy blending the material but rather cutting off about 3/4 the way up the tower.

This is in scene view but it also happens in game view / build.

I am using Unity 2021.3.5f1 - URP 12.1.7

Cheers
Matt

 

Stars.

 

This is how the atmosphere calculation is implemented. Basically, at the horizon the ground and sky should have the same opacity for the effect to look consistent. However, at the horizon the ground is half the distance compared to the sky, so the atmosphere density is halved to keep the values the same. The atmosphere ground effect (rather than sky) is applied to objects, because objects are usually on the ground, and so in the extreme scenario if your video it highlights the calculation difference. The 'proper' way to calculate atmosphere colors is of course with light in-scattering and out-scattering and multiple samples, but this is very expensive to calculate so it's not possible to get physically correct lighting in all scenarios. Plus, in real life you usually don't get such thin atmospheres and such large objects that go from the ground to the sky, so the simpler calculations of the atmosphere shader are usually fine, but they can break down in some ways as you see.

If you mean the starfield then you can look at the SgtStarfieldCustom component, which allows you to manually specify a list of stars (this is also a getter-only property). Just call the DirtyMesh() method after so the mesh updates.

 

No, i mean how can I spawn a object to a position with SgtFloatingSpawner. Like I creating a gameobject at the center 0,0,0 and i want another object at 0,5,2, i am giving the gameobject SgtFloatingSpawnerSphere, and the spawned object will be spawned procedurall not at 0,5,2. How can I do that? If you know what i mean.

 

The SgtFloatingObject component has the SetPosition method, which you can call with a new position. You can make this position using new SgtPosition(xyz, scale) where scale=1 is meters. The SgtFloatingSpawnerSphere component handles spawning itself based on the spawn Radius you specify, so you can't specify exact positions.

 

ok thx, btw 4.1.0 is out, but there is still stands
Space Graphics Toolkit - Documentation - 4.0.9 - Carlos Wilkes

 

Ah ok, thanks for the reply. Yea I have a lot of large objects that move from the surface to out of the atmosphere and it's very noticeable but I'll try fake it somehow. Cheers

 

Actually 4.1.0 isn't out yet, I just uploaded the documentation too early xD It's almost ready.

Anyway, here's a sneak peek at the galaxy component:

 

I apologize if this has been asked before, but I couldn't find anything related to it:

In my scene, I have multiple cameras and billboards. It appears that although only one of the cameras has the SGT Camera component, the billboard rotations are affected by the other camera positions as well, causing the billboards to fail to rotate toward the SGT Camera, sometimes (depending on where the other cameras are). What would you suggest as a fix?
thanks!

Edit: the billboards rotate for the scene camera when the scene view is active, but NOT for the SGT Camera. Odd.

 

Which render pipeline are you using?

The SgtBillboard component is designed to rotate to all cameras before they render the scene (including scene view). The SRPs have fewer camera events available than BiRP though, so it's possible the billboard code gets run before any of the cameras actually render anything, therefore leaving the billboards at the rotation of the last camera. If so, it would be best if I added some setting to manually specify which cameras the billboard should rotate to.

 

Actually, I’m running builtin. Interestingly enough, some of the billboards appear to rotate correctly, and some don’t. I’m still digging to figure out why…

 

Nice! How is it looking from the bottom and inside the galaxy?

 

First off, Love the kit. Been tearing into it for a few weeks now. Love the included pieces as well * chef kiss*
Feature request:
I know there is a black hole model in the kit and it's ...."cool"..... is it possible to add (Or if there is a way one can create) THIS as a black hole
https://hackaday.com/wp-content/uploads/2021/03/black-hole.jpeg

 

Hmm strange, it appears to work fine for me. If you could prepare a really simple demo scene that breaks on your end all the time then could you send it to me and let me know your Unity versions so I can try to replicate it?

It's a squashed sphere so it looks the same on both sides and mostly disappears up close. You can combine it with a normal galaxy starfield to give it volume inside.

To do this properly the black hole shader would need to be very complex and implement ray marching/tracing, which I have no plans to do. You may be able to get something close with something like the Accretion Disk demo scene as a base with different colors and such.

 

Your advice gave me the direction I needed to create this



You have to see it in motion. It's a thing of beauty

 

Hi,
I love your asset, i'm a happy owner definitely.
I would like to integrate invector.
My goal is to seamlessly go from the outside of the ship, while in space, to invector controller while inspace. In order to live in the ship during the travel...hope i'm clear enough..Sorry...
Is it possible?
thanks

 

Wow, very nice and close to the reference material! Maybe I should make a demo scene like this for the next version now that I know it's possible

I have no experience with invector. Most of SGT is normal GameObjects with normal MeshColliders, so in theory it should work with most other assets. The main difficulty is that the 'up' direction in space changes based on the planet or spaceship you're on, so any character controller you use must have the ability to change this direction. It may also require a custom script to adjust this direction, but it depends on how they're all implemented.

The larger example scenes in SGT also use the Universe feature, which likely won't directly work with any character controller without custom code to handle the origin shift. To start with I recommend not implementing the Universe feature so you can just focus on getting the up direction changes working, then you can later worry about the Universe feature with origin shifting.

 

Many thanks. It's too complex for me, but now i know where to start.
Forgive my daring, but if it's easy for you ...could you show an example based on the free third person asset from unity?
i'm gonna ask to the GameKitController dev, it's controller seems to use a close "no gravity" feature...
thanks again

 

There are so many character controllers out there that I have no plans to modify or support any of them. Same thing with multiplayer. It's up to you

 

Of course, i do understand.
I edited the post cause the gkc dev answered this question.
I'll go back toying around with sgt ...
Many thanks

 

i’m sorry I haven’t gotten back to you. I’ve got pneumonia, so it might be awhile before I can provide this. But thank you! I will make a repro scene if possible as soon as I’m able.

 

No problem, take as long as you need!

 

Hi there! I recently finally got this amazing asset. But I've been exploring the demo scenes and found two issues.

In the Saturn scene from the Solar System pack, when flying around there's sometimes a depth sorting issue with the rings that I can't reproduce with the Ring examples from the main package. Maybe it's something specific about the Saturn scene?



And then in the Earth Sized Planet demo scene there's this glitch with the shore texture, like it's tiling correctly in one axis but not the other?



Is there anything I can do on my side to fix these? Or I'll have to wait for the next version? Thanks!

 

Hi, when I add 2 Lights with SGT Light Component and adding a Sphere and Ring with Shadow Feature, there will be only showing 1 Shadow Ring, why?

And SGT Floating Massive doesn´t work with SGT Floating Scaler, SGT Simple Scaler and Near Texs.

 

Can you attach a modified .unity scene file with the camera already in a location that causes this ring sorting issue?

Thanks, the tiling will be fixed in the next version coming out very soon!

Each SgtShadowSphere/Ring component adds one shadow. Making it cast once per light would probably make sense, I'll add it to the to-do list to investigate.

SgtFloatingMassive takes over the position and scale of the object so it won't work with these other components.

 

So its impossible to scale a billboard with SGTFloatingMassive or is there an another way?

 

You can adjust the SgtFloatingMassive component's Scale or Size setting, or make your billboard a child GameObject and use the SgtFloatingScaler component's Target setting to change the scale of it so the two component's don't conflict.

 

I figured it out before I read this. Thx for the Info!

 

Hi, I need an another help. Why does my Near Tex not work on Build? On Editor its on.

 

Could you modify one of the example demo scenes so the camera is in the correct spot to replicate this issue, and then send it to me?

 

Hi. I want to combine your SGT Backdrop stars with standard unity skybox material. The problem is that the stars (SGT Backdrop) are visible only with render queue at 3000 and higher, if I use skybox material. Without it, I can set it to 1000 and it is fine but then the starts are behind the skybox. It does not matter what render queue the skybox material has really, the stars need at least 3000 to be in front of it but with that value, they are in front of every other mesh. I really dont know how to combine Unity standard skybox material with SGT backdrop.
Thanks for the help.

 

You mean to check if its work with one of you Demo Scene? If yes it doesnt work.

 

Hey everyone,

Version 4.1.0 of Space Graphics Toolkit is now out!

• Moved main build to Unity 2020.3.0f1.
• Fixed Terrain shader's shore texture being stretched.
• Fixed Jovian demo scene's aurora effect.
• Added new Nebula feature.
• Added new Galaxy feature.
• Replaced Star Pack with new Galaxy Pack and Nebula Pack (see documentation).

For the new Nebula and Galaxy features I made the new Galaxy Pack and Nebula Pack, which you can get from the documentation HERE.

Also, the SPACESHIPS asset is currently 50% off and works great with SGT!

Merry Christmas

If changing the render queue doesn't fix it then the issue is likely to be the blending mode, or perhaps the backdrop stars are too far away relative to the skybox?

The Saturn demo scene works fine for me, but perhaps there's a specific camera angle required to replicate this issue. Therefore, I need you to prepare and send a modified demo scene to me so I can see the issue.

 

Could you please test it out on your scene ? Just use any material for skybox (Lighting - Environment - skybox material) and try to have both things visible at the same time but the render queue of stars cant be higher than 2000 since 2001 would overlay geometry layer that is meant for meshes. So ideally skybox material at 1000 and stars at 2k.

 

You're using an older version of SGT so it's hard to test. In the current version if I enable the default skybox then it appears to render as expected:

 

How can the Object Spawn after X Time? I can´t get it really.

 

Either write a custom spawner that somehow implements this, or make the existing spawners spawn a placeholder object that has a script on it that spawns the real object after some time. Either way, you must write some custom code that I can't help you with.

 

Hi. I imported the update and got 17 errors in the console.
Assets\Source of asssets and scripts\Space Graphics Toolkit\Features\Shared\Scripts\SgtOcclusionScaler.cs(86,15): error CS0101: The namespace 'SpaceGraphicsToolkit' already contains a definition for 'SgtDepthScale_Editor'


Assets\Source of asssets and scripts\Space Graphics Toolkit\Features\Flare\Scripts\SgtFlareMaterial.cs(10,27): error CS0246: The type or namespace name 'SgtFlare' could not be found (are you missing a using directive or an assembly reference?)

Assets\Source of asssets and scripts\Space Graphics Toolkit\Features\Billboard\Scripts\SgtDepthScale.cs(91,15): error CS0263: Partial declarations of 'SgtDepthScale_Editor' must not specify different base classes


Assets\Source of asssets and scripts\Space Graphics Toolkit\Features\Billboard\Scripts\SgtDepthScale.cs(93,27): error CS0115: 'SgtDepthScale_Editor.OnInspector()': no suitable method found to override

Assets\Source of asssets and scripts\Space Graphics Toolkit\Features\Ring\Scripts\SgtRingMesh.cs(11,27): error CS0246: The type or namespace name 'SgtRing' could not be found (are you missing a using directive or an assembly reference?)

And many others. Do you know what went wrong ? Thanks.

 

It wasn´t really hard to implement that Time in SgtFloatingSpawner.

(Sry for the very little little Code, if its not allowed)

But when I add a Variable for the "Time" it won´t show in the Script. Even on the Ring, Sphere and Orbit Script doesn´t work. Why and how can I fix it?

 

It sounds like you moved the folder of the old SGT version before you updated? If so, this may break the update and split the asset in two.

All SGT components have a custom inspector at the bottom of the script file. You can add your Draw("Time"); line to it.

 

How do you make a "terrain planet" with colliders ?? I've been trying for days now please can someone tell me how they managed to make it, because I want the player (a spaceship) to land on the planet BUT I fly through it

Like if I wanna make a terrain planet right , with terrain colliders , how should the terrain value depending on the planet scale (raduis) ?

 

Yes, that's what I did. So should I move it back to the "Assets" folder, update it and then I can move it elsewhere, right ? Thanks.

 

Check out the "Terrestrial Planet" demo scene, and compare its setup to yours.

That should work, assuming you're updating from an an earlier 4.X.X version.

 

Hey everyone,

I'm proud to announce the release of a new asset:

This asset comes with a bunch of incredibly high resolution planets you can put in the background of your scene. Unlike planets in SGT or SGP, these planets are only visible in the background (i.e. no landing), which allows for some really interesting shader tricks for higher detail and higher performance.

I made an extra special temporary discount for any existing customers of SGT, SGP, or Spaceships, so get it while you can

If you decide to get it then please write a review, it really helps out!

Thanks for reading, and enjoy the holidays!

>> GET ORBIT HERE <<

 

It worked, thx!

 

May I ask you about the new CW Orbit, is there a way to make them behave as if they were part of the background ? Like the player would never reach them. In my game where player can travel 2000m/s, he could reach the planet quickly and I just can't go and scale it 1000 times because camera far clipping would have to go quite far and that would ruin the shadow quality. Thanks.