Refining Renderer Sort Keys — Handmade Hero — Episode Guide

0:07Recap and set the stage for the day

1:25Blackboard: Sort Key for Rendering

6:06Blackboard: Treating Z purely semantically

10:00handmade_world_mode.cpp: Disable the GroundBuffer, run the game and demo the situation with rendering entities on stairwells

13:26Blackboard: On rendering entities on stairwells

17:42Unexpectedly hit an InvalidCodePath

18:43Debugger: Realise that we never reset SortEntryAt

19:14handmade_render_group: Introduce ClearRenderValues

23:47Run the game and watch the last frame time

24:58handmade_render_group.cpp: Consider how best to generate the SortKey

27:15handmade_render_group.h: Add b32 Upright to render_transform

28:06"Move this out to its own thang"^α

28:41handmade_render_group.cpp: Use Upright in the SortKey computation

30:28handmade_world_mode.cpp: Set the GroupBuffer to not be Upright

31:01Run the game and note that we don't leave a hole for the stairwells

32:28Try getting the stairwell thing working a little bit

33:48Run the game and note some rendering problems

34:58handmade_world_mode.cpp: Give the GroundBuffer some Z

36:27Run the game and find that the topmost GroundChunk now occludes everything, as expected

37:12handmade_world_mode.cpp: Get FadeTopStart to happen again

38:39Run the game and see that everything seems to be rendering properly

39:55Note that we're drawing the entire screen many times

41:28win32_handmade.cpp: Drop down the resolution to 960x540

43:08handmade_render_group.h: Separate the transform data into object_transform and camera_transform

45:18handmade_render_group.h: Introduce DefaultUprightTransform and DefaultFlatTransform

46:59handmade_render_group.cpp and handmade_debug.cpp: Propagate these changes

59:51Run the game and find that everything is exactly the same

1:00:44Q&A

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1:00:44Q&A

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1:00:44Q&A

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1:01:25abnercoimbre Brace yourself

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1:01:25abnercoimbre Brace yourself

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1:01:25abnercoimbre Brace yourself

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1:01:53Connor_Rentz What is your preferred sorting method?

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1:01:53Connor_Rentz What is your preferred sorting method?

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1:01:53Connor_Rentz What is your preferred sorting method?

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1:03:33LaresYamoir Hi Casey. I'm currently working on an OpenGL framework for games. Wanted to ask whether I can use the code up to Day 023 (Live Code Editing), with the intend of making a commercial game eventually with it. Might be important to note that I'm also streaming, so the code might be visible sometimes when I stream framework development

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1:03:33LaresYamoir Hi Casey. I'm currently working on an OpenGL framework for games. Wanted to ask whether I can use the code up to Day 023 (Live Code Editing), with the intend of making a commercial game eventually with it. Might be important to note that I'm also streaming, so the code might be visible sometimes when I stream framework development

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1:03:33LaresYamoir Hi Casey. I'm currently working on an OpenGL framework for games. Wanted to ask whether I can use the code up to Day 023 (Live Code Editing), with the intend of making a commercial game eventually with it. Might be important to note that I'm also streaming, so the code might be visible sometimes when I stream framework development

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1:03:58gimpycpu I know you said you really like discriminated unions, but how do you deal with managing the big case switch they may cause? That is usually handled by the OOP model by delegating to the object

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1:03:58gimpycpu I know you said you really like discriminated unions, but how do you deal with managing the big case switch they may cause? That is usually handled by the OOP model by delegating to the object

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1:03:58gimpycpu I know you said you really like discriminated unions, but how do you deal with managing the big case switch they may cause? That is usually handled by the OOP model by delegating to the object

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1:05:36Demo: Switch statement vs dispatch

1:08:42ChronalDragon Obviously we lost some performance over the last couple streams. Are you planning to try to optimize it back down, or just leave the software renderer as is and move into GPU rendering?

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1:08:42ChronalDragon Obviously we lost some performance over the last couple streams. Are you planning to try to optimize it back down, or just leave the software renderer as is and move into GPU rendering?

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1:08:42ChronalDragon Obviously we lost some performance over the last couple streams. Are you planning to try to optimize it back down, or just leave the software renderer as is and move into GPU rendering?

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1:09:34elxenoaizd A lot of the times when you develop something, you write it in the simplest way that just works, then you polish it to something good and more finished (e.g. what you did with dsound). For someone catching up, do you think it's good enough to just study and focus on that better version, or is there a value in writing that initial version ourselves?

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1:09:34elxenoaizd A lot of the times when you develop something, you write it in the simplest way that just works, then you polish it to something good and more finished (e.g. what you did with dsound). For someone catching up, do you think it's good enough to just study and focus on that better version, or is there a value in writing that initial version ourselves?

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1:09:34elxenoaizd A lot of the times when you develop something, you write it in the simplest way that just works, then you polish it to something good and more finished (e.g. what you did with dsound). For someone catching up, do you think it's good enough to just study and focus on that better version, or is there a value in writing that initial version ourselves?

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1:10:47SnowyCrystalz Hey Casey! I just found your series and was amazed that you are creating an entire game without using an external library like SDL (from what your episode one said, at least). I really wanted to watch your progress through the series but I have no Idea where to start in the 200+ episodes since I already am working on an SDL OpenGL game. What is your suggestion?

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1:10:47SnowyCrystalz Hey Casey! I just found your series and was amazed that you are creating an entire game without using an external library like SDL (from what your episode one said, at least). I really wanted to watch your progress through the series but I have no Idea where to start in the 200+ episodes since I already am working on an SDL OpenGL game. What is your suggestion?

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1:10:47SnowyCrystalz Hey Casey! I just found your series and was amazed that you are creating an entire game without using an external library like SDL (from what your episode one said, at least). I really wanted to watch your progress through the series but I have no Idea where to start in the 200+ episodes since I already am working on an SDL OpenGL game. What is your suggestion?

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1:11:49quartertron I can't remember if you discussed this when it first cropped up but, when you are halfway up the stairs and blending the trees, you get a darker area where they overlap. What's the "fix" for that?

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1:11:49quartertron I can't remember if you discussed this when it first cropped up but, when you are halfway up the stairs and blending the trees, you get a darker area where they overlap. What's the "fix" for that?

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1:11:49quartertron I can't remember if you discussed this when it first cropped up but, when you are halfway up the stairs and blending the trees, you get a darker area where they overlap. What's the "fix" for that?

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1:12:18Blackboard: On the need for compositing in order to fade

1:13:30coxpuncher Is std::qsort worth using compared to rolling your own?

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1:13:30coxpuncher Is std::qsort worth using compared to rolling your own?

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1:13:30coxpuncher Is std::qsort worth using compared to rolling your own?

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1:14:24NoRaD91 How do / would you deal with collisions between multiple entities in terms of collision resolution, not detection, like deciding how to resolve conflicts between multiple moving things? I kinda hit a wall there not seeing solutions that aren't very ugly (especially movement-order dependency)

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1:14:24NoRaD91 How do / would you deal with collisions between multiple entities in terms of collision resolution, not detection, like deciding how to resolve conflicts between multiple moving things? I kinda hit a wall there not seeing solutions that aren't very ugly (especially movement-order dependency)

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1:14:24NoRaD91 How do / would you deal with collisions between multiple entities in terms of collision resolution, not detection, like deciding how to resolve conflicts between multiple moving things? I kinda hit a wall there not seeing solutions that aren't very ugly (especially movement-order dependency)

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1:16:28Robrobby You said the scaling value is not used, but the camera transforms everything. What is the difference?

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1:16:28Robrobby You said the scaling value is not used, but the camera transforms everything. What is the difference?

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1:16:28Robrobby You said the scaling value is not used, but the camera transforms everything. What is the difference?

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1:17:44karn1948 What keyboard are you using these days? I know you're a connoisseur, so I'd love to hear a recommendation

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1:17:44karn1948 What keyboard are you using these days? I know you're a connoisseur, so I'd love to hear a recommendation

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1:17:44karn1948 What keyboard are you using these days? I know you're a connoisseur, so I'd love to hear a recommendation

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1:18:26Culver_Fly How would a front-to-back renderer actually work? Would it test every pixel before writing to it?

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1:18:26Culver_Fly How would a front-to-back renderer actually work? Would it test every pixel before writing to it?

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1:18:26Culver_Fly How would a front-to-back renderer actually work? Would it test every pixel before writing to it?

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1:19:57Mr4thDimention Does multiple dispatch come up for you much (as in n types with n^2 branches)? How do you handle it when it does?

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1:19:57Mr4thDimention Does multiple dispatch come up for you much (as in n types with n^2 branches)? How do you handle it when it does?

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1:19:57Mr4thDimention Does multiple dispatch come up for you much (as in n types with n^2 branches)? How do you handle it when it does?

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1:21:30NoRaD91 Would you rather have an explicit fall-through statement with implicit break, instead of standard switch-statements? Seems much cleaner to me, or am I missing something?

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1:21:30NoRaD91 Would you rather have an explicit fall-through statement with implicit break, instead of standard switch-statements? Seems much cleaner to me, or am I missing something?

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1:21:30NoRaD91 Would you rather have an explicit fall-through statement with implicit break, instead of standard switch-statements? Seems much cleaner to me, or am I missing something?

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1:22:41quartertron That's what I was afraid of but thought maybe you had some trick like a messed up precomputed alpha

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1:22:41quartertron That's what I was afraid of but thought maybe you had some trick like a messed up precomputed alpha

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1:22:41quartertron That's what I was afraid of but thought maybe you had some trick like a messed up precomputed alpha

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1:23:17ttbjm I know we just got over the holiday break, but will there be a break in Handmade Hero when The Witness launches? If it's a possibility, it might be better to ask the community if they want that

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1:23:17ttbjm I know we just got over the holiday break, but will there be a break in Handmade Hero when The Witness launches? If it's a possibility, it might be better to ask the community if they want that

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1:23:17ttbjm I know we just got over the holiday break, but will there be a break in Handmade Hero when The Witness launches? If it's a possibility, it might be better to ask the community if they want that

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1:23:36Robrobby Are you productive / feel good at programming no matter how many hours you work per week?

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1:23:36Robrobby Are you productive / feel good at programming no matter how many hours you work per week?

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1:23:36Robrobby Are you productive / feel good at programming no matter how many hours you work per week?

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1:24:41Close up shop and glimpse into the future

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1:24:41Close up shop and glimpse into the future

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1:24:41Close up shop and glimpse into the future

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