Camera and aspect ratio

Questions
#1

If we use the camera and fix they aspect ratio by script or checkbox in the camera properties panel we are having correct camera’s zoom only if screen.width>screen.height (0:00-0:20)

So we need correct the camera zoom for portrait screens, where screen.width<screen.height:
in video: 0:45-1:10

My code for this (see windowevent function):

local campos = vmath.vector3()
local nearz = .1
local farz = 2000
local initial_z = 680

function init(self)
	msg.post("#camera", "acquire_camera_focus")
	campos=go.get_position()
	campos.z=initial_z
	go.set_position(campos)
	msg.post("#camera", "set_camera", {aspect_ratio = 1.0, fov = 45, near_z = nearz, far_z = farz})
	window.set_listener(windowevent)
	windowevent(self,window.WINDOW_EVENT_RESIZED, {width=render_helper.window_res.x,height=render_helper.window_res.y})
end

function final(self)
	msg.post("#camera", "release_camera_focus")
end

--########################################  Window Event  ########################################
function windowevent(self, event, data)
	if event == window.WINDOW_EVENT_RESIZED then
		print("Window resized: ", data.width, data.height)
		msg.post("#camera", "set_camera", {aspect_ratio = data.width/data.height, fov = 45, near_z = nearz, far_z = farz})
		if data.width<data.height then
			campos.z=initial_z*data.height/data.width
			go.set_position(campos)
		else
			campos.z=initial_z
			go.set_position(campos)
		end
	end
end

Is it right or I’m missing something in camera initialization, project settings, etc?

2 Likes
Look Your Loot aka Hamster
#2

UPD.
this camera zoom script works nice at any resolution:

but now I got new issue with blink some sprite (z-order of card’s back sprite is -0.1, hidden sprite -shield has 0.0) :smiley:

p.s perhaps I need to rename this topic to dev diary )

2 Likes
#3

What camera you are using for ur game? ortho or prespective? How are you zooming and focusing the screen centre on HTML5 build…

#4

this is exactly what I’ve been searching for, but I’ve copied this script to my camera’s script and got

ERROR:SCRIPT: /main/cam/cam.script:13: attempt to index global 'render_helper' (a nil value)

I guess I’m missing another step, may I ask for a beginner friendly instruction of using this camera script please?

#5

render_helper - this module contains game window resolution in table variable “window_res”. And init script use it for beginning initialisation. You can change it to your own variables.

#6

well I’ve just started with defold and I don’t have any idea what should my variable be for this one, should I just define a variable with that name or there’s more to it?

#7

@ddtnfm Another option would be one of the already available camera solutions on the Asset Portal.

#8

oh, I didn’t knew about the asset portal, thanks :slight_smile:

1 Like
#9

Yeah, we probably need to push for and link to it more @Axel and @samuel.nystedt. Top level links instead of hidden under community.

2 Likes
#10

Yep, agreed! We’re booting up post-holidays, but this is one of the things we plan to do soon.

2 Likes