Model tilting

[Resike]

I managed to tilt ingame models in the x axis like this:



However my code only works with ~45 degree tilt yet.

local frame = CreateFrame("Frame", nil, UIParent)
frame:SetPoint("Center", 128, 0)
frame:SetWidth(512 / (2 * math.sqrt(2)))
frame:SetHeight(512 / (2 * math.sqrt(2)))
frame:SetAlpha(1)
 
local model = CreateFrame("PlayerModel", nil, frame)
model:SetAllPoints(frame)
 
local zz = 2
 
function ModelBasics_UpdateModel()
    model:SetModel("Creature/LasherSunflower/lasher_sunflower.m2")
    model:SetRotation(math.rad(0))
    model:SetAlpha(1)
    model:SetCustomCamera(1)
    model:SetCameraDistance(1)
    local x, y, z = model:GetCameraPosition()
    model:SetCameraPosition(x, y, zz)
    model:SetPosition(0, 0, - (zz * zz))
end
 
ModelBasics_UpdateModel()
 
local frame2 = CreateFrame("Frame", nil, UIParent)
frame2:SetPoint("Center", - 128, 0)
frame2:SetWidth(512)
frame2:SetHeight(512)
frame2:SetAlpha(1)
 
local model2 = CreateFrame("PlayerModel", nil, frame)
model2:SetAllPoints(frame2)
 
function ModelBasics_UpdateModel2()
    model2:SetModel("Creature/LasherSunflower/lasher_sunflower.m2")
    model2:SetRotation(math.rad(0))
    model2:SetAlpha(1)
end
 
ModelBasics_UpdateModel2()

Also i'm unable to create a slider for this zz (aka the tilt value) to work properly with every value from 0-90 (0-180 would be the best) degrees. Maybe someone with more experience can help me with this?

I think this would be an awsome feature for addons.

[Malsomnus]

If I understand correctly, the problem you're describing is that you cannot actually rotate the model by 90 degrees by only controlling the Z axis, and the solution is to have the slider control the Y axis (or is it X?) as well to make sure that the camera goes in a circle around the model, with sin(Y) = sqrt (1-cos(Z)*cos(Z)) or some such equation.
I hope that that's indeed the problem you meant

[Resike]

Yeah i got it, i just have no clue how to code that now.

[Malsomnus]

Say the slider moves between -180 and 180, and we call its value [i]s/I], and you have some value for camera distance because, you know, different model sizes, then you want something like:

local deg = s * math.pi / 180
local y = math.pow (math.sin(deg), 2) * camDistance
local z = math.pow (math.cos(deg), 2) * camDistance

(I think. It's been a long day.)

[Resike]

Okay, thanks for you help i managed to do it, however the tilting seems kinda weird, also the model sometimes radnomly flips 180 degrees when its tilted 0 or 90 degrees. Not sure whats causing this.

Here is my code:

local frame2 = CreateFrame("Frame", nil, UIParent)
frame2:SetPoint("Center", - 128, 0)
frame2:SetWidth(512)
frame2:SetHeight(512)
frame2:SetAlpha(1)
 
local model2 = CreateFrame("PlayerModel", nil, frame)
model2:SetModel("Creature/LasherSunflower/lasher_sunflower.m2")
model2:SetAlpha(1)
model2:SetAllPoints(frame2)
model2:SetCustomCamera(1)
local x, y, z = model2:GetCameraPosition()
local r = math.sqrt((x * x) + (z * z))
print(x, y, z, r)
 
local degree = 90
 
local slider = CreateFrame("Slider", nil, UIParent, "OptionsSliderTemplate")
slider:ClearAllPoints()
slider:SetPoint("Center", UIParent, "Center", 0, 300)
slider:SetMinMaxValues(90, 180)
slider:SetValue(90)
slider:SetValueStep(1)
slider:SetScript("OnValueChanged", function(slider, value)
    degree = value
    ModelBasics_UpdateModel2()
end) 
 
function ModelBasics_UpdateModel2()
    --model2:SetModel("Creature/LasherSunflower/lasher_sunflower.m2")
    --model2:SetRotation(math.rad(0))
    model2:SetCustomCamera(1)
    local xx = math.pow(math.sin(math.rad(degree)), 2) * r
    local zz = math.pow(math.cos(math.rad(degree)), 2) * r
    model2:SetCameraPosition(xx, y, zz)
    --model2:SetAllPoints(frame2)
end
 
ModelBasics_UpdateModel2()

[Malsomnus]

I'm a bit high on a sleeping pill at the moment, but I promise to give this a look in the morning