Game Development

12:49 AM

@StephaneHockenhull Covered in gold or something?

Stephane Hockenhull

nah, chained inside a giant steel box at the bottom of the ocean for a few months if I remember.

Ah, then that's not what I had seen.

Stephane Hockenhull

Angel, the buffy spin-off.

Not in Angel, I don't know what it is; it was in an anime movie. The bad guy was immortal and invincible. But someone poured melted gold over him and threw him in the ocean. He could not die but he could not move once the gold hardened (quite fast in the water).

I thought that happened in the Buff spinoff...

Not gold, but...

12:54 AM

2 hours ago, by Stephane Hockenhull

Like in Angel when he got thrown into the ocean.

Bleh, read the conversation, but didn't look to see who said what.

Now, let's see if I can have my lines use Xiaolin Wu's algorithm.

Good luck! I'm off to bed... :(

Good nite!

'nite!

2 hours later…

2:37 AM

Finally got the minimap looking decent. Perspective view is a go!

8 hours later…

user92578

10:12 AM

These lines are fucking killing me

user92578

I thought I had them fixed with texture coordinate offsets but those didn't really work the way I wanted

12:43 PM

@Tyyppi_77 I guess your tile coordinates are in floats

user92578

So I've got a fix working with applying a small offset to the texture coordinates

user92578

TOpenGLTextureRect SRect::ToTextureRect(const STexture* texture) const
{
	static const float scale = 8.0f;
	const TVector2& offset = TVector2(0.5f) / (texture->Size * scale);
	return TOpenGLTextureRect{ (X / texture->Size.X) + offset.X, (Y / texture->Size.Y) + offset.Y, (W / texture->Size.X) - offset.X * 2.0f, (H / texture->Size.Y) - offset.Y * 2.0f };
}

There's a better way

How wide is your NDC?

user92578

NDC?

E.g. if the left edge is -1 on the x coordinate and the right is 1, then it's 2 wide

normalized device coordinates

user92578

12:45 PM

Before or after projection?

Before

user92578

I mean aren't those always from -1 to 1 in OpenGL?

Sorry, let's start again

What's the coordinate of the point at the upper left and lower right corners before projection?

user92578

Ah (0, 0) and (1, 1) I think

Or in other words, what values do you pass to the projection matrix as width and height

user92578

12:48 PM

What? How are those the same thing?

user92578

I pass my window/render target width & height to the projection matrix

user92578

Oh NVM I just figured out what you meant

Then try to simply strip the floats into integers

That solved my problems with tilemaps

user92578

So where would be an easy place to make that happen? The shader?

Yeah

After you multiply by view and model

But before projection

The other solution is to make sure each tile's with and height is an integer

user92578

12:55 PM

I still get a few glitches flashing here and there

user92578

void main() {
	vec4 toBeRounded = ViewportScale * Translation * Rotation * Scale * vec4(VertexPosition, 1.0);
	toBeRounded.x = int(toBeRounded.x);
	toBeRounded.y = int(toBeRounded.y);
	gl_Position = Projection * toBeRounded;

	vec2 textureCoordinate = (TextureFlip * vec3(VertexUV, 1.0)).xy;
	UV = textureCoordinate * UVRect.zw + UVRect.xy;
}

I'll look up what I did to solve this, give me a minute...

user92578

Aight sure