Skip to main content

VR Tips Compilation #1

I've been collecting tips & advice about working with VR, from the various Unreal Engine Livestreams & GDC Talks. Even though I myself have never even used a VR device, it seemed like a good idea to get to know more about it from the people who are already working on it. This post is the first of two VR tips compilations based on the data that I've collected so far. 

  • The first and most important thing that I've heard in almost all the talks is to never take the camera control away from the player. This would mean that traditional methods like moving the camera to shift the player's focus on to important game events, would probably be a bad idea. So would changing the camera angle to reflect the action from different perspectives.

  • Many games use Depth of Field & changing Field of View to zoom in on important/relevant targets while blurring out the edges. It seems that this is not going to be of much use when working in VR. Players might create this effect naturally by closing one of their eyes while aiming at a target. It would be a better practice to cut down on the rendering costs of DoF & use it elsewhere where it's truly required.

  • When fading the screen, it's better to fade to black than fade to white. Unlike reality, the player cannot put his hands to cover his eyes if the screen is too bright. On the other hand, if they move their head as a natural impulse, it wouldn't create the necessary response thus creating a break in immersion. And I believe that immersion could be the most important advantage of VR, and when it breaks, it's probably going to be more frustrating than in traditional gaming experiences.

  • During this early stage of VR, when the general public haven't been accustomed to the experience enough to make it feel natural, it would be a good idea to not make the experience too scary. Again, the natural response of covering your eyes don't work here & that could potentially create unfavorable experiences.

With that, I conclude the first post. The second and final post should be uploaded soon.

Popular posts from this blog

Unreal Engine Tutorial: Create Circular Ring Material without Textures

Hi, welcome back for another tutorial. It's been quite a while since I put up a tutorial as I've been busy working on toolkits for the Marketplace. One of my earlier tutorials [link: Unit Selection Decals for RTS Games] had focused on how to create ring materials using textures, as well as using them to display unit selection decals for RTS games. However, a drawback associated with using textures was that it prevented the user from changing the inner & outer radius of the ring. And during prototyping stages of a product, it's far better to implement structures that can be changed easily from within the engine so that you don't have to create a new asset from an external package every time you need to test out a new idea. I've found this approach quite useful while working on my own products. Hence, this tutorial focuses on creating a ring material that can be adjusted both from within the material editor as well as dynamically at runtime.

Alright before we get …

Unreal Engine Diaries #11: Nav Mesh Configuration

[This episode of Unreal Engine Diaries focuses primarily on nav mesh configuration, nav areas & configuration of agent types.

Source: Unreal Engine 4 AI Support Twitch Broadcast with Mieszko: https://www.youtube.com/watch?v=7LaazCv4rB0]

1. The Recast NavMesh has a couple of attributes named 'CellSize' & 'CellHeight' under the 'Generation' section in it's details panel. Together they determine the resolution of the nav mesh & lowering these values can create more precise nav meshes. It could be especially useful when there are lot of holes in the nav mesh due to the surface properties of the terrain. However, lowering them also makes the nav mesh calculations more expensive.

2. If runtime nav mesh generation is enabled, it would be best to set the 'Tile Size' attribute of Recast NavMesh to the minimum viable amount.
3. The 'Min Region Area' parameter which can also be found under 'Generation' section of Recast NavMesh can be i…

Unreal Engine 4 Tutorial: Smooth Zoom using Mouse Wheel for Top Down Template

Well, I had already written a tutorial for implementing Smooth Zoom functionality for Top Down Template. But it was based on keyboard inputs. Since most Top Down PC games use mouse wheel for zoom, I decided to make a tutorial for the same. The core logic here is the same as the one implemented by Ryan Jon for the custom camera in his RTS Community Project. If anyone's interested, they can get the code for the RTS Community Project here:

UE4 RTS Community Project

Anyways, he has replaced the default camera for the characters with a general camera since that's more ideal for developing an RTS game. Since a basic Top Down game with a single playable character does not need a separate custom camera, I decided to implement the same functionality for the default player camera in UE4's Top Down Template. So let's get down to it.

First of all we need to make a custom curve from the content browser. We will be using this curve to define the smooth camera movement while zooming …