Providing Convenient Camera Controls — Handmade Hero — Episode Guide

0:00Recap and set the stage for the day continuing the renderer API cleanup

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0:00Recap and set the stage for the day continuing the renderer API cleanup

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0:00Recap and set the stage for the day continuing the renderer API cleanup

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1:25Determine to switch platform_renderer to use a table of function pointers, to enable loading of renderers from DLLs

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1:25Determine to switch platform_renderer to use a table of function pointers, to enable loading of renderers from DLLs

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1:25Determine to switch platform_renderer to use a table of function pointers, to enable loading of renderers from DLLs

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3:41Switch platform_renderer to use function pointers

9:57Demo C++ virtual function calls

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9:57Demo C++ virtual function calls

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9:57Demo C++ virtual function calls

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13:18Enable RenderLoop() to use the functions pointed to in platform_renderer, introducing Win32LoadOpenGLRenderer()

17:24Run the Renderer Test to see everything working fine

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17:24Run the Renderer Test to see everything working fine

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17:24Run the Renderer Test to see everything working fine

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17:38Switch Handmade Hero to use our function pointers in platform_renderer

18:11Run the game

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18:11Run the game

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18:11Run the game

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18:54Export Win32LoadRenderer() – renamed from Win32LoadOpenGLRenderer() – to a DLL

25:43C++ name mangling

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25:43C++ name mangling

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25:43C++ name mangling

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26:52Try to enable the compiler to export Win32LoadRenderer() by applying extern "C"

28:15Investigate why the compiler could not find Win32LoadRenderer(), using dumpbin

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28:15Investigate why the compiler could not find Win32LoadRenderer(), using dumpbin

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28:15Investigate why the compiler could not find Win32LoadRenderer(), using dumpbin

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29:58Stop marking Win32LoadRenderer() as internal (static), to enable the compiler to find it

31:52Link all the necessary libraries to our DLL

33:35Check our newly generated win32_handmade_opengl.dll in dumpbin and depends, to see Win32LoadRenderer in there

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33:35Check our newly generated win32_handmade_opengl.dll in dumpbin and depends, to see Win32LoadRenderer in there

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33:35Check our newly generated win32_handmade_opengl.dll in dumpbin and depends, to see Win32LoadRenderer in there

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35:30Enable RenderLoop() to load in our renderer DLL, introducing Win32LoadRendererDLL()¹

44:46Remove opengl32.lib from our CommonLinkerFlags

45:14Step through RenderLoop() and into the Renderer Test running in our external .dll

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45:14Step through RenderLoop() and into the Renderer Test running in our external .dll

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45:14Step through RenderLoop() and into the Renderer Test running in our external .dll

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46:17Enable RenderLoop() to pop up a dialog box if we failed to find a renderer²

48:46Delete win32_handmade_opengl.dll and run the Renderer Test to see our dialog box

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48:46Delete win32_handmade_opengl.dll and run the Renderer Test to see our dialog box

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48:46Delete win32_handmade_opengl.dll and run the Renderer Test to see our dialog box

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49:28Introduce Win32InitDefaultRenderer() to wrap up the renderer DLL loading

51:54Switch Handmade Hero over to use our external renderer DLL

53:19Run the game using the external DLL, with a few words on the potential to create other renderers

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53:19Run the game using the external DLL, with a few words on the potential to create other renderers

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53:19Run the game using the external DLL, with a few words on the potential to create other renderers

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54:16Determine to clean up the camera and sprite pushing API, and general code organisation

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54:16Determine to clean up the camera and sprite pushing API, and general code organisation

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54:16Determine to clean up the camera and sprite pushing API, and general code organisation

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55:08Dive into cleaning up the camera API

1:02:25Introduce Translation() for our camera setup code to initialise the matrix

1:03:54Run the Renderer Test with the camera working just as before

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1:03:54Run the Renderer Test with the camera working just as before

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1:03:54Run the Renderer Test with the camera working just as before

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1:04:26Fold the CameraOffset into the camera matrix initialisation

1:06:57Run the Renderer Test using our single camera matrix operation

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1:06:57Run the Renderer Test using our single camera matrix operation

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1:06:57Run the Renderer Test using our single camera matrix operation

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1:07:25Simplify the camera setup code out into BuildCameraObjectMatrix() and GetStandardCameraParams()

1:14:05Run the Renderer Test to see the exact same result

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1:14:05Run the Renderer Test to see the exact same result

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1:14:05Run the Renderer Test to see the exact same result

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1:14:29Continue to simplify the camera code out into ViewFromCamera()

1:16:44Run the Renderer Test, noting the simplicity of our camera API while retaining all the power

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1:16:44Run the Renderer Test, noting the simplicity of our camera API while retaining all the power

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1:16:44Run the Renderer Test, noting the simplicity of our camera API while retaining all the power

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1:17:40Make SetCameraTransform() take fog_params and alpha_clip_params

1:27:43Run the Renderer Test to verify that we work with the fog and alpha defaults

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1:27:43Run the Renderer Test to verify that we work with the fog and alpha defaults

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1:27:43Run the Renderer Test to verify that we work with the fog and alpha defaults

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1:27:57Try setting some fog_params in ViewFromCamera()

1:30:37Run the Renderer Test to see our fog, and play with the params, encountering some bugs with the sprite outlines

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1:30:37Run the Renderer Test to see our fog, and play with the params, encountering some bugs with the sprite outlines

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1:30:37Run the Renderer Test to see our fog, and play with the params, encountering some bugs with the sprite outlines

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1:34:38Augment the camera struct with FogStart and FogEnd

1:38:47Run our fogged Renderer Test

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1:38:47Run our fogged Renderer Test

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1:38:47Run our fogged Renderer Test

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1:39:04Augment the camera struct with ClipAlphaStart and ClipAlphaEnd for ViewFromCamera() to use

1:42:07Run the Renderer Test to see our alpha clipping

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1:42:07Run the Renderer Test to see our alpha clipping

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1:42:07Run the Renderer Test to see our alpha clipping

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1:42:51Reflect on our newly simplified camera API, and consider getting rid of the render_group

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1:42:51Reflect on our newly simplified camera API, and consider getting rid of the render_group

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1:42:51Reflect on our newly simplified camera API, and consider getting rid of the render_group

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1:46:23nxsy Q: 1:30pm

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1:46:23nxsy Q: 1:30pm

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1:46:23nxsy Q: 1:30pm

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1:47:10Consider the reason for render_group

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1:47:10Consider the reason for render_group

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1:47:10Consider the reason for render_group

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1:49:16Switch Handmade Hero over to our new camera API

1:49:57Run the game, noting that we've lost our fog and alpha clip

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1:49:57Run the game, noting that we've lost our fog and alpha clip

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1:49:57Run the game, noting that we've lost our fog and alpha clip

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1:50:51Make UpdateAndRenderWorld() set the fog and alpha clip

1:52:48Run the game with our fog and alpha clip working

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1:52:48Run the game with our fog and alpha clip working

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1:52:48Run the game with our fog and alpha clip working

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1:52:59Document our window setup

1:54:59Run the Renderer Test preserving the 16:9 aspect ratio

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1:54:59Run the Renderer Test preserving the 16:9 aspect ratio

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1:54:59Run the Renderer Test preserving the 16:9 aspect ratio

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1:55:09Try setting the draw region to fill the entire window

1:55:24Run the Renderer Test to see that we correctly draw to the entire window

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1:55:24Run the Renderer Test to see that we correctly draw to the entire window

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1:55:24Run the Renderer Test to see that we correctly draw to the entire window

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1:55:53Document the camera testing and texture downloading

2:00:17Q&A

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2:00:17Q&A

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2:00:17Q&A

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2:01:12naysayer88 Q: How can I program a really good Windows Update system like Windows has that makes sure you update all the time especially if you are not home or are watching a movie right now?

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2:01:12naysayer88 Q: How can I program a really good Windows Update system like Windows has that makes sure you update all the time especially if you are not home or are watching a movie right now?

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2:01:12naysayer88 Q: How can I program a really good Windows Update system like Windows has that makes sure you update all the time especially if you are not home or are watching a movie right now?

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2:04:31vateferfout Q: (Off-topic) You mentioned in the pre-stream fetching the cache misses. Do you mind explaining how it's done?

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2:04:31vateferfout Q: (Off-topic) You mentioned in the pre-stream fetching the cache misses. Do you mind explaining how it's done?

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2:04:31vateferfout Q: (Off-topic) You mentioned in the pre-stream fetching the cache misses. Do you mind explaining how it's done?

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2:04:50cynokron Q: Why do you want to remove the render group? What is the alternative? My following is a bit spotty so I am sorry if this is obvious from watching previous streams

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2:04:50cynokron Q: Why do you want to remove the render group? What is the alternative? My following is a bit spotty so I am sorry if this is obvious from watching previous streams

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2:04:50cynokron Q: Why do you want to remove the render group? What is the alternative? My following is a bit spotty so I am sorry if this is obvious from watching previous streams

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2:05:31tkscootlive Q: What is your opinion on the Vulkan API? Is it overkill to use it for a little indie game or is it worth the thousands of setup code lines?

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2:05:31tkscootlive Q: What is your opinion on the Vulkan API? Is it overkill to use it for a little indie game or is it worth the thousands of setup code lines?

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2:05:31tkscootlive Q: What is your opinion on the Vulkan API? Is it overkill to use it for a little indie game or is it worth the thousands of setup code lines?

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2:09:09vateferfout Q: I mean memory cache misses

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2:09:09vateferfout Q: I mean memory cache misses

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2:09:09vateferfout Q: I mean memory cache misses

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2:09:38uhee Q: What steps are you going to do to optimize the renderer?

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2:09:38uhee Q: What steps are you going to do to optimize the renderer?

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2:09:38uhee Q: What steps are you going to do to optimize the renderer?

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2:10:21accidentalrebel Q: I'm making DOS games for fun. Have you had experience making games during the DOS era?

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2:10:21accidentalrebel Q: I'm making DOS games for fun. Have you had experience making games during the DOS era?

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2:10:21accidentalrebel Q: I'm making DOS games for fun. Have you had experience making games during the DOS era?

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2:11:11vateferfout Q: Sorry, I'll rephrase it. Is there a function that lets you know how many L1, L2, etc. cache misses happened since, for example, the last time you called the function?

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2:11:11vateferfout Q: Sorry, I'll rephrase it. Is there a function that lets you know how many L1, L2, etc. cache misses happened since, for example, the last time you called the function?

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2:11:11vateferfout Q: Sorry, I'll rephrase it. Is there a function that lets you know how many L1, L2, etc. cache misses happened since, for example, the last time you called the function?

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2:14:53mattiamanzati Q: After ending up with the renderer part, which do you thing is the next macro-step on Handmade Hero?

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2:14:53mattiamanzati Q: After ending up with the renderer part, which do you thing is the next macro-step on Handmade Hero?

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2:14:53mattiamanzati Q: After ending up with the renderer part, which do you thing is the next macro-step on Handmade Hero?

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2:15:11cynokron Q: Do you ever see Linux as a consumer machine? I'd personally rather use Linux to play games than Windows or Mac, but in your Vulkan rant Linux was not mentioned at all

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2:15:11cynokron Q: Do you ever see Linux as a consumer machine? I'd personally rather use Linux to play games than Windows or Mac, but in your Vulkan rant Linux was not mentioned at all

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2:15:11cynokron Q: Do you ever see Linux as a consumer machine? I'd personally rather use Linux to play games than Windows or Mac, but in your Vulkan rant Linux was not mentioned at all

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2:15:58mmozeiko Q: On Linux you can do that with "perf" utility. It does not require anything extra, kernel already provides this information

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2:15:58mmozeiko Q: On Linux you can do that with "perf" utility. It does not require anything extra, kernel already provides this information

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2:15:58mmozeiko Q: On Linux you can do that with "perf" utility. It does not require anything extra, kernel already provides this information

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2:17:03Wrap it up³^,4

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2:17:03Wrap it up³^,4

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2:17:03Wrap it up³^,4

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