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      Game Development

      Proc Gen My Friend

      Proc Gen My Friend

      If there’s one genre that’s taken the world of indie games by storm in the last few years, it’s the rogue-lite. Or, perhaps, the roguelike-like? While the specifics of what to call these games is often argued, most of them are addictive, replayable, and challenging thanks to the magic of procedural generation.

      Procedural generation is a technique that game developers employ to create content that generates its own unique challenges. This means it can reduce development times and costs, and thanks to its unpredictable nature, sometimes surprise both players and developers.

      What Is Procedural Generation?

      Simply put, data of any sort is procedurally generated when a mathematical algorithm is responsible for its creation. In the world of gaming, a wide assortment of things can be procedurally generated. For instance, a developer could create level assets like pits, enemies, obstacles, story elements, and power-ups and then, using procedural generation, set these things to appear at somewhat random locations throughout a level.

      The advantage of using this method is that potentially thousands of unique levels could be created without human intervention. This drives endless replayability. A procedurally generated game could be enjoyed for ages longer than a game with traditionally generated levels thanks to players enjoying “new” levels years after the game’s development has ended.

      Where Is Procedural Generation?

      As mentioned earlier, the procedural generation has its place in a level generation. However, good procedural generation is more complex than our illustration may lead one to believe. When used to fill out a video game level with obstacles, for instance, parameters still need to be determined in advance to keep the game both fair and fun. What if a poorly coded procedural generation algorithm threw an abnormally large number of enemies at the player in the first level? It’d certainly make the game more challenging, but it’d also make the game less fun for new players. A game can’t enjoy longevity if it has no early life to speak of!

      One deservedly well-loved rogue-lite that balances procedurally generated content with pre-determined elements is FTL: Faster Than Light in which players guide a ship through a galaxy full of hazards to deliver a message to the far side of the galaxy more or less in one piece - and then to defeat a massive, incredibly powerful enemy ship. While FTL can itself be beaten in a couple of hours (technically), the overwhelming majority of playthroughs end in death. Yet, players come back to the game over and over again, thanks to its use of procedural generation. There aren’t an amazing number of enemy types or items, the game’s story is neither lore dense nor dialogue-heavy, and yet it’s a game that keeps people hooked.

      Every new run in FTL presents new possibilities. It’s a bit like gambling, really: you could be blown out of the sky in the first sector or, thanks to random chance and skill acquired through playing, you could make it all the way. The random elements in FTL keep it challenging and replayable. However, they’re not the only reason why the game works - it’s also well balanced, carefully crafted, and manages to be challenging in other dimensions without being unfair and frustrating.

      Putting It to Work

      For our own game, Bite the Bullet, we recognized the value of procedural generation and, early on in the development cycle, put it to work. Bite the Bullet is a run-and-gun platformer with RPG eating elements. Choose a class based on your diet (like the vegetarian Slaughter of the Soil or the carnivorous and blood-soaked Gorivore), eat your enemies to turn them into XP, and unlock powerful abilities (like Appetite for Destruction, which lets you eat incoming enemy projectiles). This set-up opened the door for some procedurally generated systems.

      For example, there are plenty of side quests, bonus modes, and hidden areas in Bite the Bullet, but getting to them is a quest in itself. See, in BTB, side quest locations are randomized, so where you found that rideable hamster at a certain level isn’t where you’re going to find it the next time. Although the core of each level is designed by hand, this procedurally generated content keeps the gameplay fresh and engaging.

      One of the most exciting possibilities that procedural generation offers is in terms of equipment that becomes available to the player. In FTL, you’ll occasionally receive weapons and ship upgrades, each with their own pros and cons - each new combination of items opens up fresh gameplay possibilities. In Bite the Bullet, we take things a step further: weapons can be combined with mods in order to change their effects. Love your missile launcher? Well, you can combine it with a mod that allows you to shoot multiple missiles simultaneously. Not enough for you? That’s alright, it wasn’t enough for us either - you can find an incendiary element that sets fire to your foes.

      Worth It?

      We knew that for Bite the Bullet, procedural generation offered a lot of advantages, but it also came with some risks. The technology is brilliant, but it does have its limits. For instance, procedural generation is not well suited to creating strong puzzles. That’s why Image & Form, after having used procedurally generated levels in Steamworld Dig ditched them in the sequel, in order to create puzzles that procedural generation wouldn’t.

      Similarly, we were concerned about how procedural generation would impact the core mechanics of Bite the Bullet. We wanted levels that showcased all of the player’s abilities - jumping, dashing, and (of course) EATING. For example, the game’s calorie meter is drained for significant player actions, encouraging the player to keep gorging himself on his foes. If the procgen system didn’t sprinkle enough tasty enemy treats throughout, players would be a starving, weakened mess. This was another reason to design the levels by hand.

      Game design is undoubtedly a tricky business. What on the surface looks like a small decision can, with poor management, turn into an imbalanced and precarious catastrophe. Creating video games is as much an art as it is a science. Procedurally generated elements, exciting as they are, do not come without the ever-present element of risk.

      And yet, we are driven to include them. The magical spark of possibility that they open up to players is too powerful to ignore. At Mega Cat, we’re taking the risk, and we’re putting in the work on Bite the Bullet to create a game that you’ll love for a long time.

       

      Ready to chow down? Wish list Bite the Bullet on Steam! You can also step into the kitchen and help test the game by joining our Discord!

      Coffee Crisis Chroma Integration: A Behind-the-Scenes Look

      Coffee Crisis Chroma Integration: A Behind-the-Scenes Look

      Table of Contents

      1. Introduction 3
      2. Overview of Chroma Integration in Coffee Crisis 4
      3. Installing Razer Synapse for development 11
      4. Installing UnityChroma(Native) SDKs 12
      5. Creating animations 13
      6. Testing on real/emulated hardware 18
      7. Behind the scenes look 19

      1. Introduction

      We, Mega Cat Studios, have recently wrapped up development on Coffee Crisis, a multiplatform 2D Beat'em Up game for Sega Genesis, PC, and Xbox One! One of the features exclusive to the PC port that we implemented into Coffee Crisis was Chroma support. Chroma is a unique, proprietary, next-generation technology that Razer implements into its product line of high-end gaming equipment, which allows dynamic lighting on its equipment. Products created by Razer which implement their top-of-the-line Chroma technology include their keyboards, mice, mousepads, computer cases, and much more. Using the Chroma SDK, developers can integrate Chroma support into their games and applications, and configure the lighting on Razer's Chroma-enabled products. Such examples of Chroma integration include making the products light up as a VU meter in multimedia applications, encoding gameplay information on products, and even attempting to show images on the device by approximately color mapping colors in images to certain buttons/keys on the device.

      Coffee Crisis is a neo-rogue brawler that puts you in the shoes of the only baristas on Earth with enough heavy metal in their veins to fend off an alien assault. Play solo or join up with a friend to fight across eight unique locations ranging from your Coffee House HQ to the far reaches of outer space. Go up against an army of wild alien enemies, and the humans they have brainwashed with a variety of weapons, special moves, suplexes, and coffee!

      The Smurglian race has come to Earth and they're not leaving until they steal our three most prized commodities: heavy metal, free WiFi, and our coffee. Crunch through fistfuls of alien meat as you stop their invasion, and enjoy random modifiers to the enemies and action on each playthrough. It's a unique cup of beat 'em up action every time you play!

       

      1. Overview of Chroma Integration in Coffee Crisis

      As part of our feature set of Coffee Crisis, we implemented Chroma integration into our game. The game was created for PC/Xbox One using Unity3D, a closed-source but critically acclaimed video game engine created by Unity Technologies, applauded and used by Indie and professional game developers worldwide. To add Chroma integration into Coffee Crisis, we used the official Chroma and Chroma Native Unity3D SDKs. For our game, we utilized Chroma for showing colorific animations on the Blackwidow Chroma Keyboard in cutscenes and menus, and on encoding gameplay information. Specifically, we implemented the following:

      • Menus
        • Main Menu
          • Animating keyboard to depict the background animation

        • Credits
          • Displaying a static color image of the final cutscene's background

      • Cutscenes
        • Story cutscenes
          • Applying a 5-color, brown palette cycle of concentric squares on the keyboard

       

          • Death metal/mod mode intro cutscene
          • Displaying a static color image of cutscene's background

      • Game
        • Encoding various game information on the keyboard
        • Encoding a health bar on the top row FN keys
          • Keys
            • Keys F1-F12
            • Printscreen
            • Scroll Lock
            • Pause
          • Bar increases/decreases as health changes
          • Bar color tweens
            • From green (max health)
            • To red (low health)
        • Encoding the hit combo counter on the row of numeric keys
          • Number keys 0-9
          • Bar increases as hit combo increases
          • The bar becomes full and fully green after 20 hit combos
          • Bar color tweens
            • From red (low hit combo)
            • To green (high hit combo)
        • Encoding the hit combo cooldown timer on the first alphabetic row
          • Keys QWERTYUIOP
          • Bar decreases from full as cooldown timer decreases
          • Bar color tweens
            • From red (low amount of time left)
            • To green (high amount of time left)
        • Encoding the amount of time left on the invincibility and damage multiplier powerups
          • Feature only viewable on full-sized keyboards, not half-sized (Blade keyboards on Razer laptops)
          • The feature can be disabled by
            • Selecting the keyboard type in the options menu
              • Full-sized keyboards
              • Blade keyboard
            • This saves CPU cycles
          • Keys 0-9 on Numpad
          • Keys 1-9 color tween
            • From green (high amount of time left)
            • To red (low amount of time left)
          • Key 0 stays a particular color based on powerup type
            • Yellow for invincibility
            • Red for a Damage multiplier

        • Encoding modifier information
          • Features only available in mod modes (various options set in Options Menu)
            • Modifiers toggle set on
            • Twitch integration enabled
            • Mixer integration enabled
          • Keys M1-M5
          • During voting in a Finish Them Zone
            • Keys M1-M4
              • Encodes the number of votes for the mod category
              • Color tweens
                • From green (low amount of votes)
                • To red (high amount of votes)
                • Zero votes display black

            • Key M5
              • Encodes the total amount of votes during the vote session
              • Color tweens
                • From green (low amount of votes)
                • To red (high amount of votes)
                • Zero votes display black

          • After voting in a Finish Them Zone
            • Keys M1-M4
              • Encodes the number of modifiers in play for the mod category
              • Color tweens
                • From green (low amount of mods)
                • To red (high amount of mods)
                • Zero mods display black
              • Modifier amount ranges
                • Twitch/Mixer
                  • 0-2 mods
                • Not Twitch/Mixer, but modifiers on
                  • 0-5 mods
            • Key M5
              • Encodes the total amount of mods in play during the Finish Them Zone
              • Color tweens
                • From green (low amount of mods)
                • To red (high amount of time left)
                • Zero votes display black
        • Encoding pain/powerup pickup
          • Every time the player
            • Is hit
              • All other keys unused by other bullet points flash red
            • Picks up a powerup
              • All other keys unused by other bullet points flash yellow

      This guide will show aspiring Indie video game developers how to set up and use the Unity3D Chroma plugins for game development, as well as show an exclusive behind-the-scenes look on how we implemented the Chroma functionality in Coffee Crisis!

       

      1. Installing Razer Synapse for development

      Before you can even use a Blackwidow Chroma keyboard for development, you must plug it into your computer for the first time. It goes without saying, but Chroma development will only work for Chroma-enabled Blackwidow keyboards. Certain Blackwidow keyboards do not include Chroma support; please check your user's manual.

      Plugging in your Chroma Blackwidow keyboard

      Plug in your Chroma Blackwidow keyboard into your computer. Some Blackwidow keyboards have 2 USB cords; one as a piggyback cable, another for the keyboard. Make sure at a minimum to connect the USB cable labeled "Razer" and not "Port". After plugging in your Chroma Blackwidow keyboard, the keyboard's drivers should install from online, and it should light up. In order to control the lighting and handle it in code, you will next need to install Razer Synapse software.

      Installing Razer Synapse for development

      Razer Synapse is a piece of software created from Razer which will allow you to configure the Chroma lighting on your Chroma-enabled devices, as well as interface with the lighting with code (after we implement code and the Unity Chroma plugins).

      To begin, download and install Razer Synapse. At the time of this writing, the latest version is Razer Synapse 3 Beta, while the previous is Razer Synapse 2. Download and install either version (for this guide, we'll use Razer Synapse 3 Beta). After launching the installer, select which features you want to be installed, and where to install it. At a minimum, you will want to install Razer Synapse software and Chroma.

      1. Installing UnityChroma SDK

      Now that we have both Razer Synapse installed and the drivers installed with the Razer Chroma Keyboard (via plugging it in), it is time to set up our Unity project to interface with Chroma!

      In order for a Unity project to interface with Chroma devices, you will need to install the Unity3D Native and non-native plugins for Chroma SDK. You can find the native plugins here, and the non-native here. The former plugins are required for usage in compiled games (they interface with the hardware), while the latter plugins are used in the Editor only for creating Chroma animations. The latter ones should be removed for compiled builds, to reduce filesize bloat in the compiled builds. Please read the instructions from each download page on how to use the plugins and install them.

      1. Creating animations

      With the keyboard's drivers installed, Razer Synapse installed, and the Unity3D Razer plugins installed into your project, you should be good to go for developing with Chroma! Below are a few conceptual notes on how Chroma works in Unity. Full-details on how to use Chroma with Unity can be found in the tutorials on the pages where you downloaded the Unity3D Chroma plugins.

      Chroma color with the Unity3D plugins works in either one of 2 ways: via Chroma animations, or by manually updating the colors of keys on-the-fly. The former method will be discussed in this section, while the latter in the next section. Chroma animations should not be confused with Unity's animations. The latter is used for changing properties of a GameObject's components overtime via keyframes (especially sprites and image graphics), while the former is used for changing the colors of Chroma-enabled devices over time.

      Chroma animations are simply .chroma filetypes, stored in the StreamingAssets folder within the Assets folder in the root folder of the project. Unfortunately, Chroma devices are only supported on Windows machines, so when compiling the game for other platforms (Mac and Linux), you should remove the ChromaSDK plugins, UnityNativeChromaSDK plugins, and the StreamingAssets folder with the Chroma animations, since they will bloat up the build's filesize and are unused for those platforms.

      To create Chroma animation, go to GameObject>ChromaSDK>Create 1D/2D Animation. For Keyboard animations, we will want to use 2D Animations. The Chroma animations should be placed in your StreamingAssets folder.

      In order to edit Chroma animations, right-click the animation, and click ChromaSDK>Edit Chroma Animation. This will bring up a custom Chroma Editor in the Inspector.

      In the custom editor, you can select the device type ("Keyboard" for this tutorial), select key types from the keyboard, and assign colors to each key in each frame in the animation. You can also import an image to assign colors to each key (however, this feature seems to crash often). When modifying colors, the Chroma devices attached to the computer will update to display your color configuration.

      Alternatively, to individually assigning colors to each key, you can use the Chroma capture tools to map an image onto the various keys. To use these tools, Goto Windows>ChromaSDK>Open Chroma Particle Window. To learn how to use these capture windows, check out the tutorials here.

      Animation playback

      Now that we have our animations defined for the game, we will need to add code to playback our animation. Any Unity3D script that utilizes the native Chroma plugins will need this namespace added to the top of the script:

      #if UNITY_STANDALONE_WIN

      using ChromaSDK;

      #endif

       

      Furthermore, Chroma support is only supported in the Windows platform, so make sure to add #if UNITY_STANDALONE_WIN code blocks around Chroma code. Below is a quote from the API documentation here for the most important API functions for playback:

      1. Testing on real/emulated hardware

      Now that we have animations defined and code for playing the animations, you will want to test them on hardware. You can either test it as such on real hardware (by playing the game with the Chroma device connected) or with the Chroma Emulator. The Chroma emulator will simulate Chroma lighting for a variety of devices. At a bare minimum, you will need one real Chroma device setup first before it can be used. Usage should be straightforward.

      1. Behind the scenes look on Coffee Chroma Integration

      A limitation of the Unity Chroma setup is that animations are static; it doesn't really allow for combing several animations to encode data. When designing the in-game Chroma animation, we wanted to encode most of the game's information on the keyboard. Luckily, we were able to exploit a few things in the Unity Chroma set up as a workaround and allow dynamic key lighting. Coffee Crisis' in-game Chroma animation is simply a dummy Keyboard animation with no keys lit.

      We heavily utilize the SetKeysColorAllFramesName API function in order to manually update the keys in an Update() thread; however, there is a catch to this method. In order to edit an animation during runtime, you must do the following:

      • Close it first with CloseAnimationName
      • Manually change your keys' colors with SetKeysColorAllFramesName
      • Play dynamic animation back with PlayAnimationName

      This sequence of code events was what allowed us to pull off dynamic animations in-game. A problem with using an update() thread to update dynamic Chroma animation in such a fashion is that it may lag other people's machines. Different models of Chroma keyboards have higher fresh rates, and running such an update thread at full speed will severely lag other people's machines. As a workaround to this issue, we added a cooldown timer, to update dynamic Chroma animations every 250ms. Please see our truncated, relevant code attached, for a sample of how we set up dynamic Chroma animations to work.

      Dook's VR Design Tips - Lessons learned ~200 hours into the matrix

      Dook's VR Design Tips - Lessons learned ~200 hours into the matrix

      Hey friend, I'm dook, a programmer/designer working on Another Reigny Day, A VR castle defense game for the HTC Vive. Designing games for VR can be a daunting task since the medium is so new and always shifting. So we've compiled a small list of problems we've had, and solutions we've found to fix them. Quick disclaimer, I don't intend this article to be an authority on how to do things in VR, they're just things we've picked up along the way, and that have worked for us. VR design is such a volatile and subjective thing that everything in this post could be completely wrong or outdated with new hardware. Anyway, with that out of the way, here are some things we learned in no particular order.


      For the love of God, don't make the player use the grip buttons too much

      (on the vive wands anyway... most of the time...)


      The grip buttons on the Vive have to be the worst part of the system. They're just downright awkward to press, or at least I think so anyway. Anecdotally, about every second VR user I've talked to didn't like using them, but some people don't seem to have an issue. Even if it only affects a small percent of players, you should always design VR with accessibility in mind.


      But there are some use cases where the grip buttons are necessary. Objects that have to be used (i.e. guns) come to mind. You can't use the trigger for a grab action since there'd be no way to fire the gun. Using the grip buttons to toggle grabbing and trigger for using the item, is a pretty common solution. I think you'd be hard-pressed to find users that have a problem with that since the press is so in-frequent. But set it to toggle and not hold.


      Locomotion options


      Following the trend of accessibility, locomotion options are essential to make sure your players have a good experience depending on their tolerance to motion sickness. It might be a little extra work, but players appreciate this kind of stuff. Try to get all the standard ones in there if you can. So: teleport, trackpad, and arm swinger. Dash teleport is also a bit nicer than regular fade teleport since it provides great feedback to the player of where they're moving to without any sort of motion sickness. When play-testing Reigny, we often had players accidentally teleport downstairs and being confused about where they were since we only used fade teleport.


      Don't cover the player's field of view entirely.

      There's a flying monkey enemy that flings poop at the player's face and cover's the player's field of view with poo if it hits. This immediately brought a lot of players out of the experience and questioning what had just happened. This was kind of fixed with better sign-posting of what was happening: we slowed down the monkey, added a trail renderer to the projectile, and most importantly made the sides of the poop texture transparent so players could still see a glimpse of what was happening around them. Accounting also does this well in the courtroom scene that gestures you to reach onto your face by covering half of your view with black and putting a low pass filter on the audio.


      Use tracked objects

      Held objects that are 'tracked' feel way nicer than objects that are children of the controller. Tracked objects have the benefit of interacting properly with the environment (knocking over stuff) as well as moving when colliding with the environment (like a wall). It's a really simple thing that adds a lot to immersion.
      Juice it!


      Even though VR design is still pretty new and always changing, it's important to still adhere to some standard game design principles, especially making sure things are properly juiced. Sound + haptics are like half of what makes VR fun and are easy to neglect. Something that added a ridiculous amount of permanence was simply adding body parts and blood to the field on Another Reigny Day. The talk by Jan Willem Nijman (of Vlambeer fame) on juice is one of the best out there, and there are so many things that can be applied to VR (maybe not the screen shake parts though lol)

      Accessibility

      Thinking about accessibility is important for pretty much all games, and especially important in VR since you'll get a range of people playing your game. For example, how will kids and short people interact with things? A great way to test this is to try to play your game on your knees and see if everything can still be played ok. Some ways to deal with this could be to create tables with adjustable heights, or the option to scale your environment down to half scale.

      Another important question to ask is if the player can play the game sitting down, or standing in place. Adding the ability to be able to turn on the spot is great for those with standing configs or people with only front-facing tracking.


      Ergonomics is also worth keeping in mind when designing for VR. Experiences that have the player looking down or up for too long can cause neck strain. Having the player hold their arms out straight for too long can also be uncomfortable (ie using a bow and arrow for too long). Picking things up off the floor sucks just as much in VR as it does in real life, and should be avoided if possible. To fix some of these things in Reigny, we added the bow 'Recall' feature, which flings the bow from anywhere on the map to the player's hand, so they don't have to bend down. We also made using the bow for long periods optional, with an array of other options to help enemies part.

      Use Audio to give cues about what's happening in the game world

      Audio can be a great tool to alert players to what's happening around them without looking, which is especially enhanced by 3D audio in VR. With so much sensory input to the player, it can be really easy for the player to miss things happening around them. It's really important to create sound cues for things like enemies that might sneak up behind the player (footsteps work well with 3D Audio) or machines, that can sound off about if they're working properly or not. One of the issues we found when people played Another Reigny Day was that they were constantly surprised by enemies coming up behind them and attacking them, which happens when they break down the gate and storm the castle. The root cause of this was players not knowing if the gate had been broken. To help fix this we added a loud audio cue for when enemies are attacking the gate, as well as a loud crash for when it's been broken down.
      That's it for now! If you'd like to read further into VR design I highly recommend searching through the Google I/O 2016 + 2017 talks on VR for things that sound interesting. GDC and VRDC also have some really good ones about things studios have learned developing for VR. I think it's also important to try out other people's games to build up a design vocabulary with others and get inspiration.

      Finally, I'm including a short video demonstrating the most unique way to pause an HTC Vive Medieval Low Poly Action game in 2018:

      Be the Fetus

      Later skater


      You can follow me on twitter @duckpizza for more VR shenanigans

      Improving the mixer interactivity authentication experience on PC

      Improving the mixer interactivity authentication experience on PC

      We recently finished our second game with Mixer integration and wanted to share what might be a helpful resource for other devs in the future. It's short and sweet!


      For the PC platform, users who want to enable Mixer interactivity in your game must first authenticate through a short key. This entails providing the user with a key, them visiting a website, and then entering the key. By default, the Mixer Interactivity for Unity plugin makes this process very time-consuming by simply showing the key and the URL to the user, without any accessibility shortcuts to speed the process up.

      Our solution:
      1. Put the authentication key in a box that will copy the key to the clipboard when selected or clicked.
      2. Put the URL to mixer's authentication page into a button that, when selected or clicked, will open the URL in the user's default browser.

      Copying to the clipboard is a platform-dependent operation. Thankfully, Unity's TextEditor feature provides that easily. Here's some sample code which will copy a string to the user's clipboard:

      public void CopyToClipboard(string str)
      {
      TextEditor editor = new TextEditor
      {
      text = str
      };
      editor.SelectAll();
      editor.Copy();
      }

      Opening a URL is also simple:

      public void OpenURL(string url)
      {
      Application.OpenURL(url);
      }

      In summary, just have the user click/select the key to copy it to the clipboard (don't do so automatically - you don't want to forcefully overwrite the user's clipboard), and then select the link to the authentication page. This makes the process of enabling interactivity very smooth for the user, giving them a good first impression of Mixer Interactivity.

      Unity Chroma SDK: Using Particle Systems to Make Beautiful Chroma Animations

      Unity Chroma SDK: Using Particle Systems to Make Beautiful Chroma Animations

      Important note for devs: Make sure Razer Synapse is up to date, otherwise some SDK features will not work.

      For starters, here's a handy link to Unity Chroma SDK.

      One of the most powerful features of the Unity Chroma SDK is the ability to record the view of a camera in the scene and convert that to a chroma animation. A lot of creative opportunities lie within this feature, as chroma animations can, therefore, be made from a camera that sees particle systems, canvas, sprites, meshes with materials, and so on.

      For our game Log Jammers, I found particle systems achieved the type of effect we were looking for with far less development time than expected. Following is a description of the process to utilize the camera capture feature of the Unity Chroma SDK.

      First, set up a camera in the scene which aims at a particle system. Make sure the orientation of the two is such that the camera will see the particle system.



      Open the “Chroma Particle Window” which is dedicated to this Chroma SDK feature. This is located in Unity’s toolbar if you have imported the Chroma SDK package.

      Next, drag and drop the following references into their corresponding fields in the particle window:

      1. Your target chroma animation object. Make this by placing the Chroma SDK animation component of your choice on a GameObject.
      2. The camera you just configured to point at your particle system.

      With the particle window still open, select your particle system in the scene, and press the “Simulate” button in the scene view. You should see the particles of your system in the preview window.

       

       


      To start recording the camera view, press the “Start” button. I recommend timing your capture to start/stop around your particle system beginning and ending, so the transitions in and out of the chroma animation are smooth. Please note that capturing will add to the end of previously saved/recorded frames in the animation. Therefore, if you don’t like a capture, make sure to press the “Reset” button to clear the bad capture before recording again.

      This workflow makes for nice looking chroma animations in little time. Below you can see examples with the above-captured chroma animations in the hardware emulator.


      The Chroma Hardware Emulator

      To test all of our fancy new chroma effects on Razer hardware that I didn’t have available, I used the ChromaEmulator tool.

      This tool shows its emulation of Chroma effects in real-time for all types of Chroma hardware, including ChromaLink. This tool works with Unity without extra effort. Just fire it up, select your hardware of choice to emulate, and select show for each of them. These are some examples:

      Keyboard

      Numberpad

      Laptop

      Here's a helpful link to information for devs on chroma-link (explains the significance of the color channels).