Perspective Projection — Handmade Hero — Episode Guide

2:23Take a look at where we're at

5:16Blackboard: Perspective projection

9:48Blackboard: Capturing light in optics (optional)

20:34Blackboard: Crazy stuff we can do for photorealism, and camera hoods (optional)

26:46Blackboard: The approximation

32:21The ZFudge multiplies, but the equation for perspective projection is not a multiplication

33:43Implement the equation

45:04Take a look in-game and double-check everything

47:35Moment of realisation: Our offset is still happening in pixels

48:59Do the perspective computation in pixels and work on the values

1:00:00Blackboard: Do the maths one more time

1:04:07Q&A

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1:04:07Q&A

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1:04:07Q&A

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1:04:53jamesamurr Is squinting analogous to closing a camera's aperture?

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1:04:53jamesamurr Is squinting analogous to closing a camera's aperture?

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1:04:53jamesamurr Is squinting analogous to closing a camera's aperture?

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1:05:42stelar7 Are you intending to multiply by XYZ and not just the XY as the variable says?

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1:05:42stelar7 Are you intending to multiply by XYZ and not just the XY as the variable says?

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1:05:42stelar7 Are you intending to multiply by XYZ and not just the XY as the variable says?

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1:06:11ideograham Wasn't the room height 8 meters? That's about 3 times the height of a normal room, so you have to increase the focal length to compress everything

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1:06:11ideograham Wasn't the room height 8 meters? That's about 3 times the height of a normal room, so you have to increase the focal length to compress everything

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1:06:11ideograham Wasn't the room height 8 meters? That's about 3 times the height of a normal room, so you have to increase the focal length to compress everything

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1:06:54drive137 Q: Expect a ton of prestream questions

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1:06:54drive137 Q: Expect a ton of prestream questions

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1:06:54drive137 Q: Expect a ton of prestream questions

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1:07:07flaturated Wasn't the parameter already converted to pixels? If so then I think you are converting meters to pixels twice

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1:07:07flaturated Wasn't the parameter already converted to pixels? If so then I think you are converting meters to pixels twice

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1:07:07flaturated Wasn't the parameter already converted to pixels? If so then I think you are converting meters to pixels twice

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1:07:59ttbjm If you wanted to use this code to make a full 3D game such as a first person shooter, how much would you have to change to give the player an adjustable FOV option?

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1:07:59ttbjm If you wanted to use this code to make a full 3D game such as a first person shooter, how much would you have to change to give the player an adjustable FOV option?

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1:07:59ttbjm If you wanted to use this code to make a full 3D game such as a first person shooter, how much would you have to change to give the player an adjustable FOV option?

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1:11:38sonicphi How long do you think this is gonna take?

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1:11:38sonicphi How long do you think this is gonna take?

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1:11:38sonicphi How long do you think this is gonna take?

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1:13:02sonicphi No OpenGL, no audio library, no anything. How's being a masochist coming along?

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1:13:02sonicphi No OpenGL, no audio library, no anything. How's being a masochist coming along?

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1:13:02sonicphi No OpenGL, no audio library, no anything. How's being a masochist coming along?

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1:14:53deathtenk Hello! As a software developer, I understand the performance benefits of C++ are important. However, there are a lot of REPL-based code-at-runtime tools coming out that streamline development on both the web and in games. How do you feel about this departure from traditional software development tools?

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1:14:53deathtenk Hello! As a software developer, I understand the performance benefits of C++ are important. However, there are a lot of REPL-based code-at-runtime tools coming out that streamline development on both the web and in games. How do you feel about this departure from traditional software development tools?

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1:14:53deathtenk Hello! As a software developer, I understand the performance benefits of C++ are important. However, there are a lot of REPL-based code-at-runtime tools coming out that streamline development on both the web and in games. How do you feel about this departure from traditional software development tools?

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1:17:14dr_mudkip Do you use iPhone? If it's a yes, I would like to give you a copy of my game for iOS

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1:17:14dr_mudkip Do you use iPhone? If it's a yes, I would like to give you a copy of my game for iOS

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1:17:14dr_mudkip Do you use iPhone? If it's a yes, I would like to give you a copy of my game for iOS

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1:17:34anonymous835 Will this game have cinematic mode?

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1:17:34anonymous835 Will this game have cinematic mode?

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1:17:34anonymous835 Will this game have cinematic mode?

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1:18:07naysayer88 I use an iPhone... for my butt

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1:18:07naysayer88 I use an iPhone... for my butt

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1:18:07naysayer88 I use an iPhone... for my butt

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1:18:29krohnos Would the renderer be able to support something like zooming out for one screen that is twice as large as normal?

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1:18:29krohnos Would the renderer be able to support something like zooming out for one screen that is twice as large as normal?

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1:18:29krohnos Would the renderer be able to support something like zooming out for one screen that is twice as large as normal?

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1:21:23pseudonym73 Lots of quick time events, too?

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1:21:23pseudonym73 Lots of quick time events, too?

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1:21:23pseudonym73 Lots of quick time events, too?

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1:21:34darrenv Where about is the explanation of the reloading the code while running? It sounds like fun

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1:21:34darrenv Where about is the explanation of the reloading the code while running? It sounds like fun

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1:21:34darrenv Where about is the explanation of the reloading the code while running? It sounds like fun

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1:23:37imgudyurbad What kind of game is this going to be and what will the point of it be?

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1:23:37imgudyurbad What kind of game is this going to be and what will the point of it be?

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1:23:37imgudyurbad What kind of game is this going to be and what will the point of it be?

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1:24:31sonicphi When the game is finished, do you expect the game to look as good as if you made it in a commercial engine?

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1:24:31sonicphi When the game is finished, do you expect the game to look as good as if you made it in a commercial engine?

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1:24:31sonicphi When the game is finished, do you expect the game to look as good as if you made it in a commercial engine?

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1:26:31atomiclich Can I learn how to be a better programmer from this channel?

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1:26:31atomiclich Can I learn how to be a better programmer from this channel?

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1:26:31atomiclich Can I learn how to be a better programmer from this channel?

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1:26:56panic00 Are you planning any DLC for this game?

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1:26:56panic00 Are you planning any DLC for this game?

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1:26:56panic00 Are you planning any DLC for this game?

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1:27:48vercinger Do you use Windows Media Center a lot in your game dev process?

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1:27:48vercinger Do you use Windows Media Center a lot in your game dev process?

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1:27:48vercinger Do you use Windows Media Center a lot in your game dev process?

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1:28:31manicthenobody Why does he move slower at higher zoom?

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1:28:31manicthenobody Why does he move slower at higher zoom?

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1:28:31manicthenobody Why does he move slower at higher zoom?

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1:29:52insofaras Will the game be fun?

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1:29:52insofaras Will the game be fun?

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1:29:52insofaras Will the game be fun?

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1:30:08stelar7 Will you cover things like patching and downloading code from the internet?

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1:30:08stelar7 Will you cover things like patching and downloading code from the internet?

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1:30:08stelar7 Will you cover things like patching and downloading code from the internet?

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1:30:28sonicphi Are you planning on implementing some kind of shader support?

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1:30:28sonicphi Are you planning on implementing some kind of shader support?

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1:30:28sonicphi Are you planning on implementing some kind of shader support?

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1:31:29ninjin420 Will this game have a Collector's Edition? I want a plastic dragon in it for $150

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1:31:29ninjin420 Will this game have a Collector's Edition? I want a plastic dragon in it for $150

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1:31:29ninjin420 Will this game have a Collector's Edition? I want a plastic dragon in it for $150

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1:32:35It's dinner time

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1:32:35It's dinner time

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1:32:35It's dinner time

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