Unity3D - Discussion

[KillaMaaki]

[QUOTE=amgoz1;44841419]Deleting or disabling the directional light is the only thing that affects the shadow.
If I create a blank scene with a default directional light and a box the problem persists.[/QUOTE]

That can't be right at all. I've never seen that, not one version of Unity since 2.6 all the way up to now. WTF?

[amgoz1]

[QUOTE=KillaMaaki;44841460]That can't be right at all. I've never seen that, not one version of Unity since 2.6 all the way up to now. WTF?[/QUOTE]
Been using Unity for quite a while and this is the first time I'm having any kind of issue with the editor.

Going to try reinstalling.

[KillaMaaki]

Try a blank project perhaps?

[HeatPipe]

Hello, does there exists faster version of LineRenderer? Just wondering

[Party Boy]

Can somebody help me figure out some issues with my Physics spell?
I'm not sure why this is happening all of a sudden but its just become really apparent.
When I pick up an object and its in the held state, If I press the button again it should release it if it isn't being charged, and if it is charged it releases it with a force.
However when I try it now, when I pick up the object, it just keeps playing the release without charge audio when I press the button, and when I charge and shoot it, it gets caught straight away, like the cooldown isn't working.
Mind having a look?

[url]http://pastebin.com/6nJYaUFY[/url]

[Pelf]

Something broke when I built my game. Any ideas?

What it should look like:

[t]https://dl.dropboxusercontent.com/u/13781308/ShareX/2014-05/2014-05-19_11-11-10.png[/t]

How it actually looks:

[t]https://dl.dropboxusercontent.com/u/13781308/ShareX/2014-05/2014-05-19_11-09-11.png[/t]

[editline]19th May 2014[/editline]

[t]https://dl.dropboxusercontent.com/u/13781308/ShareX/2014-05/2014-05-19_11-24-29.png[/t]
with the script debug window thing

[editline]19th May 2014[/editline]

output_log.txt doesn't say anything problematic

[KillaMaaki]

Looks to me like all of your textures have been obliterated o.O

[Pelf]

Tried it on my desktop (win7, non-integrated graphics) and it works fine.

[editline]e[/editline]

Maybe I need to update my drivers?

[editline]e[/editline]

nope, what the fuck

[HeatPipe]

So I just figured how to do rotation between two vectors and center point (It is simple as fuck)

How come this isn't documented anywhere I don't know.

Basically, you define your center where you want to do rotation, and two vectors (unit vectors for sphere), which form a ring similiar to unit circle.

Then you do the fucking magic!

var β = [radians here];

var radius = [radius here];

var vector1 = new Vector(1,0,0); //X axis
var vector2 = new Vector(0,1,0); //Y axis

var pos = center + ((vector1 * (float)Math.Cos(β)) + (vector2 * (float)Math.Sin(β)) ) * radius;

Boom, rotating around center on circle defined by two vectors.

[FalconKrunch]

[QUOTE=HeatPipe;44850604]So I just figured how to do rotation between two vectors and center point (It is simple as fuck)

How come this isn't documented anywhere I don't know.

Basically, you define your center where you want to do rotation, and two vectors (unit vectors for sphere), which form a ring similiar to unit circle.

Then you do the fucking magic!

var β = [radians here];

var radius = [radius here];

var vector1 = new Vector(1,0,0); //X axis
var vector2 = new Vector(0,1,0); //Y axis

var pos = center + ((vector1 * (float)Math.Cos(β)) + (vector2 * (float)Math.Sin(β)) ) * radius;

Boom, rotating around center on circle defined by two vectors.[/QUOTE]

..why do you have two different vectors for the x and y axis...

[Pelf]

[QUOTE=Pelf;44849736]Something broke when I built my game. Any ideas?

What it should look like:

-

How it actually looks:

[t]https://dl.dropboxusercontent.com/u/13781308/ShareX/2014-05/2014-05-19_11-09-11.png[/t]

[editline]19th May 2014[/editline]

-
with the script debug window thing

[editline]19th May 2014[/editline]

output_log.txt doesn't say anything problematic[/QUOTE]

I changed the scene order so that it loads the first actual level first, instead of the setup/main menu scenes. I quit to the main menu and it was partially broken. I reloaded the game scene and quite back to the main menu and it was working.

-vid snip-

what

[editline]e[/editline]

nevermind, it wasn't working, the main menu was still missing the smaller moon.

:suicide:

[editline]e[/editline]

So I made a shortcut for my build and made it launch with [i] -force-d3d11[/i] and it works.

[KillaMaaki]

[QUOTE=HeatPipe;44850604]So I just figured how to do rotation between two vectors and center point (It is simple as fuck)

How come this isn't documented anywhere I don't know.

Basically, you define your center where you want to do rotation, and two vectors (unit vectors for sphere), which form a ring similiar to unit circle.

Then you do the fucking magic!

var β = [radians here];

var radius = [radius here];

var vector1 = new Vector(1,0,0); //X axis
var vector2 = new Vector(0,1,0); //Y axis

var pos = center + ((vector1 * (float)Math.Cos(β)) + (vector2 * (float)Math.Sin(β)) ) * radius;

Boom, rotating around center on circle defined by two vectors.[/QUOTE]

You could replace 'vector1' and 'vector2' with Vector3.right and Vector3.up :)

[HeatPipe]

[QUOTE=FalconKrunch;44851191]..why do you have two different vectors for the x and y axis...[/QUOTE]

It is just example. You can define your OWN axises the way you want, and vectors don't have to be normalised so you can get eclipse or some weird rotation on :)

[editline]19th May 2014[/editline]

[QUOTE=KillaMaaki;44851476]You could replace 'vector1' and 'vector2' with Vector3.right and Vector3.up :)[/QUOTE]

True, true :)

[AwesomeX]

Did you guys see the new Unity blog post?

[video=youtube;W2MLGm6Zgkc]http://www.youtube.com/watch?v=W2MLGm6Zgkc[/video]

[URL]http://blogs.unity3d.com/2014/05/19/teleporter-demo/[/URL]

[KillaMaaki]

I did. SO cool!

Then of course I made the mistake of looking at the Youtube comments...

[HeatPipe]

So fucking great, Unity just crashed and it destroyed my 300 line TeslaCoil.cs file, and I commited yesterday, but it doesn't look like I included TeslaCoil.cs file, so if this isn't great I don't know what is it..

meh i feel so sad now why does this shit have to happen :(

But now I have enabled File History, every 20 minutes backup, 1 month versions.

Ok script rewritten, still not good as original, what the hell I am going to sleep

[G😹nz😻]

[QUOTE=HeatPipe;44861203]
But now I have enabled File History, every 20 minutes backup, 1 month versions.

Ok script rewritten, still not good as original, what the hell I am going to sleep[/QUOTE]

Even 10 minutes it's too much time between you're on fire and start writting then...Crash

[HeatPipe]

[QUOTE=gonzalolog;44865643]Even 10 minutes it's too much time between you're on fire and start writting then...Crash[/QUOTE]

Kind of agree :D

Here, I changed it to 10 minutes because it really doesn't cost me nothing.

[editline]21st May 2014[/editline]

Hey, what does 'physicaly based' rendering means?

[KillaMaaki]

[QUOTE=HeatPipe;44865910]
Hey, what does 'physicaly based' rendering means?[/QUOTE]

Physically based rendering is a somewhat new shader technique with a strong focus on adhering to (simplified) physics properties.

It can be summed up like this: "you can never emit more energy than you receive". And also, "in real life, everything is shiny to some degree".
There's a lot of implications of that, but it boils down to this: Instead of specular amount/exponent, you instead have just a "roughness" value. And you never have zero specular - if you take a piece of cardboard for instance, and view it edge-on with a light, it will be a little bit shiny (fresnel effect)
Very smooth surfaces have intense, sharp highlights. Rough surfaces have diffused, blurry highlights.

There's other bits involved in there too (like box-projected reflections and such) - but the end result is that it's much easier to emulate real world materials, with a combination of diffuse color and surface roughness value.

Actually, I'll give a real world example.
Let's say you want to model a silver object. How would you do it? Grey/silvery diffuse map plus cubemap reflection?
Not in PBR. Instead, you give it a [I]pure black[/I] diffuse color map, and give it a reflection map + tweak surface roughness to taste (higher roughness for a brushed metal look, lower roughness for more of a mirror-like finish)

[url]http://www.marmoset.co/toolbag/learn/pbr-practice[/url]

It's been used in CryEngine for a while, and adopted by plenty of other games over time.

[HeatPipe]

[QUOTE=KillaMaaki;44865970]Physically based rendering is a somewhat new shader technique with a strong focus on adhering to (simplified) physics properties.

It can be summed up like this: "you can never emit more energy than you receive". And also, "in real life, everything is shiny to some degree".
There's a lot of implications of that, but it boils down to this: Instead of specular amount/exponent, you instead have just a "roughness" value. And you never have zero specular - if you take a piece of cardboard for instance, and view it edge-on with a light, it will be a little bit shiny (fresnel effect)
Very smooth surfaces have intense, sharp highlights. Rough surfaces have diffused, blurry highlights.

There's other bits involved in there too (like box-projected reflections and such) - but the end result is that it's much easier to emulate real world materials, with a combination of diffuse color and surface roughness value.

Actually, I'll give a real world example.
Let's say you want to model a silver object. How would you do it? Grey/silvery diffuse map plus cubemap reflection?
Not in PBR. Instead, you give it a [I]pure black[/I] diffuse color map, and give it a reflection map + tweak surface roughness to taste (higher roughness for a brushed metal look, lower roughness for more of a mirror-like finish)

[url]http://www.marmoset.co/toolbag/learn/pbr-practice[/url]

It's been used in CryEngine for a while, and adopted by plenty of other games over time.[/QUOTE]

That is sick, actually looks easier to create fine content :D

[KillaMaaki]

If you want to get used to the "PBR" way of content creation, there's already Lux (a free open-source PBR framework for Unity).

But, I'm really looking forward to the built-in shaders in Unity 5.

[Fixed]

[QUOTE=HeatPipe;44861203]So fucking great, Unity just crashed and it destroyed my 300 line TeslaCoil.cs file, and I commited yesterday, but it doesn't look like I included TeslaCoil.cs file, so if this isn't great I don't know what is it..

meh i feel so sad now why does this shit have to happen :(

But now I have enabled File History, every 20 minutes backup, 1 month versions.

Ok script rewritten, still not good as original, what the hell I am going to sleep[/QUOTE]

Yeah I lost about 8-10 hours of coding over a week ago, still haven't returned back to that project yet.

[backwardspy]

Version control, use it people!

[Mimi_C]

I'm re-doing some code and I've ran into a bit of a problem.

This code is supposed to rotate a mirror clock-wise along the Y axis by 90° over an arbitrary amount of time. The problem is that the mirror stops rotating a few degrees over 90° instead of at 90.
I honestly don't know what the problem is.

float rotationAmount = 90f; //How much the object should rotate in total
float timeAmount = .5f; //How much time it takes to rotate, in seconds.

IEnumerator Rotate()
{
    rotate = true;
    float angle = 0f;

    while(rotate)
    {
        if (angle < rotationAmount)
        {
            transform.rotation = Quaternion.AngleAxis(transform.rotation.eulerAngles.y + ((rotationAmount / timeAmount) * Time.deltaTime), Vector3.up);
            angle += ((rotationAmount / timeAmount) * Time.deltaTime);
        }
        else
        {
            angle = 0;
            rotate = false;
        }
        yield return null;
    }
}

[KillaMaaki]

[QUOTE=Jacen;44873162]I'm re-doing some code and I've ran into a bit of a problem.

This code is supposed to rotate a mirror clock-wise along the Y axis by 90° over an arbitrary amount of time. The problem is that the mirror stops rotating a few degrees over 90° instead of at 90.
I honestly don't know what the problem is.

float rotationAmount = 90f; //How much the object should rotate in total
float timeAmount = .5f; //How much time it takes to rotate, in seconds.

IEnumerator Rotate()
{
    rotate = true;
    float angle = 0f;

    while(rotate)
    {
        if (angle < rotationAmount)
        {
            transform.rotation = Quaternion.AngleAxis(transform.rotation.eulerAngles.y + ((rotationAmount / timeAmount) * Time.deltaTime), Vector3.up);
            angle += ((rotationAmount / timeAmount) * Time.deltaTime);
        }
        else
        {
            angle = 0;
            rotate = false;
        }
        yield return null;
    }
}

[/QUOTE]

You're not clamping angle to 90. You should do that.

[Mimi_C]

[QUOTE=KillaMaaki;44873212]You're not clamping angle to 90. You should do that.[/QUOTE]

Thank you, after a couple changes it works perfectly.

Somehow I always forget that clamping exists.

[AwesomeX]

Anyone know how to apply a force to a character controller?

I'm trying to add a simple melee knock back type force to an NPC/AI which uses a character controller.

Some help would be great.

[KillaMaaki]

Character controller doesn't have a concept of "force" or "acceleration". That's what makes it good for characters- it gives you full control over the movement of the character.

You could keep track of the character's velocity, and when you want to apply a knockback you add some vector to the character's current velocity.

[AwesomeX]

Hmm, I see. Care to give me a simple example?

Here's my shitty work-in-progress melee code.
It worked perfectly for rigidbodies, but as I said above, I've changed them over to Character controllers. So I have more control, and because A* uses them.

void OnTriggerEnter(Collider other) 
	{
		Vector3 dir = other.transform.position - transform.position;
		dir.y = 0;

		if (other.rigidbody) 
		{ 
			if(swinging)
			{
				other.rigidbody.AddForce (dir.normalized * force);
			}
		}

		if (other.gameObject.tag == "Enemy") 
		{
			var aiHealth = other.gameObject.GetComponent<ZombieDeathScript>();

			if(swinging)
			{
				aiHealth.health -= damage;
				audio.clip = sounds[Random.Range(0,sounds.Length)];
				audio.Play();
			}
		}
	}

[KillaMaaki]

The code which moves the character (CharacterController.Move) should be keeping track of a velocity vector - used for something like CharacterController.Move( velocity * Time.deltaTime )

Then it could have an AddForce function which does:

this.velocity += forceVector;