
Kybryn |

Marthian wrote:Only if you bend to dodge it like Neo.Kybryn wrote:Does dropping prone or jumping give a bonus?3.5 Loyalist wrote:New spell, fire disk!Reflex DC: 8 (10 [base] + 4 [int] + 4 [lvl] - 10 [2d])
"Oh, it's a fire disc, lean out of the way!"
And if I bend the flaming disc like Bekham?

Adamantine Dragon |

Technically the fireball will conform to the space available. So if you fire off a fireball to detonate three feet off the ground, the fireball will need expand in some direction to fill up the space that is cut off by the floor and potentially any walls.
Exactly how that expands is left to the GM. I've seen fireballs back up the hallway and hit the caster who didn't take into account the necessary volume to hold the fireball.

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Technically the fireball will conform to the space available. So if you fire off a fireball to detonate three feet off the ground, the fireball will need expand in some direction to fill up the space that is cut off by the floor and potentially any walls.
Exactly how that expands is left to the GM. I've seen fireballs back up the hallway and hit the caster who didn't take into account the necessary volume to hold the fireball.
Technically, they don't. It is a pretty dick move to implement physics for one spell and not all others.

Adamantine Dragon |

Adamantine Dragon wrote:Technically, they don't. It is a pretty dick move to implement physics for one spell and not all others.Technically the fireball will conform to the space available. So if you fire off a fireball to detonate three feet off the ground, the fireball will need expand in some direction to fill up the space that is cut off by the floor and potentially any walls.
Exactly how that expands is left to the GM. I've seen fireballs back up the hallway and hit the caster who didn't take into account the necessary volume to hold the fireball.
Hmmm... so I went and read the spell description and it appears that fireball no longer conforms to the volume available.
Wow, my entire group has never noticed that went away. That's going to make our sorcerer quite happy.
Nebel, "dick move" or not, it used to be RAW. Yes, we missed when it changed, but that doesn't make it a "dick move" to continue to mistakenly apply what used to be RAW.

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Nebelwerfer41 wrote:Adamantine Dragon wrote:Technically, they don't. It is a pretty dick move to implement physics for one spell and not all others.Technically the fireball will conform to the space available. So if you fire off a fireball to detonate three feet off the ground, the fireball will need expand in some direction to fill up the space that is cut off by the floor and potentially any walls.
Exactly how that expands is left to the GM. I've seen fireballs back up the hallway and hit the caster who didn't take into account the necessary volume to hold the fireball.
Hmmm... so I went and read the spell description and it appears that fireball no longer conforms to the volume available.
Wow, my entire group has never noticed that went away. That's going to make our sorcerer quite happy.
Nebel, "dick move" or not, it used to be RAW. Yes, we missed when it changed, but that doesn't make it a "dick move" to continue to mistakenly apply what used to be RAW.
It wasn't meant as a direct comment to your situation. There are some GMs that still hold to that even after the change has been pointed out. For those same GMs, it usually happens that the volume works out "just right" to screw over the caster. *Grumble*

Greg Wasson |

One of the typical way I've seen the 3d aspect of fire ball used is to air burst it so that the radius at ground level is smaller so as to reduce collateral damage on friendlies or non-combatants.
My group does this alot. So much so,once, the wizard forgot that there were 'friendlies' fluttering about, and hit more of them than the original blast would have in the first place.

Veldan Rath |
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Fireballs working that way were almost as much of a pain as calculating how many times a lightning bolt would rebound if shot at an angle in a 10' wide hallway...
As for 3.5 Loyalist's fire disk, here's a question: can the disk be set to detonate on a vertical rather than horizontal plane?
:) We loved the bouncing Lightning Bolt way back when
...angle of reflection is = to angle of incidence...
Good Fun!

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I started with Pathfinder. I was under the impression that fireball would fill its standard volume regardless of shape.
So I went to the PRD to point out the exact definition of a "spread" AoE...
...and discovered that spreads do go around corners, but don't exceed their stated radius. That's quite a distinction to make. I didn't catch it my first time through even as a "fresh" player, so no wonder the multi-edition veterans didn't catch it!

Chemlak |

It was easy. 33,000 cubic feet is 264 5x5x5 cubes, so in a 10' high room, fireball filled 132 5' squares. Great for clearing corridors.
It got trickier in open space, when the fireball was burst at ground level, since the half that should have been below ground instead expanded the above-ground portion. It worked out at 25 foot radius.

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The old trick was to carry some sort of large tower shield. Reinforced steel and asbestos, that sort of thing. Then have the wizard drop the fireball into the kobold tunnel and have the fighter press the shield tight against the hole and hope for the best. On a good day, that fireball would squeeze right through the tiny tunnels and incinerate the little trap-laying bastards. On a bad day, the fireball would whip right back out around the shield or up through some crack in the wall and everyone would catch a whiff of it. Lost a lot of hirelings to bad dungeon architecture. Lost a few fighters too.
We had to. They were Tucker's kobolds. We would burn the whole dungeon, then redoubled our efforts, but they'd still be in the walls, man. You don't know! You weren't there!

dreamspeaker |
How you work this out depends on the DM a few of our group me inc are old gamers and had not noticed they change how the spell works. I have just talked to our DM who does not really agree with what they have done to lightning bolt and fireball also similar spells and I then reminded him that it is his world so up to him what the rules are for this world.

Herbatnik |

2d Grids and Planes or 3d Cubes and Spheres?
Are spell and other area of effects 2d (as in, they affect a flat grid only) or are they 3d (as in, they affect cubes and spheres)?
Just because things are normally expressed on a flat grid doesn't mean they're actually flat. Any effect with a radius affects a sphere, not a circle. A cone is a 3d area. A line is a line, not a plane.

Ravingdork |
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Here's something I'd like to know: is Fireball an actual explosion, with the concussive force and pressure wave, or simply fire swirling into a ball, once the bead expands?
Seeing as it has almost no pressure, I'm pretty sure it's just fire and heat filling the space.

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There's this scene in the Dresden Files. Dresden is an actual wizard, playing a D&D-like game with his werewolf friends, and he's playing a barbarian.
So the party wizard (played by a werewolf) casts a fireball, and it doesn't go beyond the spreak area. Dresden is all angry about that, because that's not realistic. He's tossed fireballs, he knows what he's talking about. He gets shouted down, because calculating the distribution of fire for a non-round area is a PITA.
Yeah, he's had issues with fire melting off most of his hand before.