Z Movement and Camera Motion — Handmade Hero — Episode Guide

2:40Run the game and show where we're at

5:49handmade_world_mode.cpp: Randomise the heights of the traversable points

9:45Run the game and traverse the room

13:33handmade_sim_region.cpp: Provide the ability to interpolate the camera's height

17:324coder: Spot a potential bug with a space being inserted after a square-bracket

19:33handmade_sim_region.cpp: Make AddStandardRoom form a ramp

20:58Run the game and attempt to hop up the ramp

23:24handmade_world_mode.cpp: Set HeadToPoint.z to 0

23:50Run the game and find that we can now hop upwards

25:08handmade_world_mode.cpp: Make AddStandardRoom produce a shallower ramp

25:39Run the game and traverse the shallower ramp

26:32handmade_world_mode.cpp: Comment out the HeadToPoint.z setting and again traverse the shallower ramp

28:26handmade_world_mode.cpp: Compute the HeadToPoint in order to prefer traversable points in the XY plane

31:00Run the game and traverse the world

33:18Blackboard: The Plan for Final Z

37:17handmade_world_mode.cpp: Let the ramp go below 0 and traverse it in an effort to see the alpha-fade

39:09handmade_world_mode.cpp: Investigate why the alpha-fade is not happening

41:07Debugger: Break on CameraRelativeGroupP initialisation and inspect the values

43:34handmade_world_mode.cpp: Only create one room

46:21handmade_world_mode.cpp: Add a DEBUG_VALUE for CameraRelativeGroundP to the HeroHead

46:50Run the game, traverse the ramp and watch that CameraRelativeGroundP

47:49handmade_world_mode.cpp: Add that DEBUG_VALUE to the Monstar

48:23Run the game and note that we don't load in the world one layer above us

49:08handmade_world_mode.cpp: Add fifteen floors to the SimBoundsExpansion

49:43Run the game and find that the alpha-fade is working

50:22handmade_world_mode.cpp: Add another column of trees to the room

51:43Run the game, trigger the fade and explain the problem with alpha blending multiple faded entities

55:04handmade_render_group.h: Consider ways to blend the alpha

58:24Q&A

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58:24Q&A

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58:24Q&A

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59:04Miblo That up / down camera movement looks so cool. I do hope the terrain height of the rooms makes good use of this

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59:04Miblo That up / down camera movement looks so cool. I do hope the terrain height of the rooms makes good use of this

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59:04Miblo That up / down camera movement looks so cool. I do hope the terrain height of the rooms makes good use of this

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59:42insofaras Could you do something with GL_MIN / GL_MAX blend equation for the alpha?

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59:42insofaras Could you do something with GL_MIN / GL_MAX blend equation for the alpha?

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59:42insofaras Could you do something with GL_MIN / GL_MAX blend equation for the alpha?

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1:03:12deras007 Can you create the word of warcraft game?

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1:03:12deras007 Can you create the word of warcraft game?

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1:03:12deras007 Can you create the word of warcraft game?

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1:04:19d7 If the contour of your entities wasn't antialiased, you could have used the depth buffer and reverse the render order for the entities being faded (front to back), but alas, it is hard to do properly with the alpha blending around the contours

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1:04:19d7 If the contour of your entities wasn't antialiased, you could have used the depth buffer and reverse the render order for the entities being faded (front to back), but alas, it is hard to do properly with the alpha blending around the contours

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1:04:19d7 If the contour of your entities wasn't antialiased, you could have used the depth buffer and reverse the render order for the entities being faded (front to back), but alas, it is hard to do properly with the alpha blending around the contours

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1:05:50evraire You mentioned rendering to an offscreen buffer then compositing as one means of getting the desired alpha effect, but you also mentioned something along the lines of using a "fragment list"? could you please elaborate a bit more on that approach?

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1:05:50evraire You mentioned rendering to an offscreen buffer then compositing as one means of getting the desired alpha effect, but you also mentioned something along the lines of using a "fragment list"? could you please elaborate a bit more on that approach?

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1:05:50evraire You mentioned rendering to an offscreen buffer then compositing as one means of getting the desired alpha effect, but you also mentioned something along the lines of using a "fragment list"? could you please elaborate a bit more on that approach?

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1:06:23Blackboard: Per-fragment atomic lists

1:18:08cubercaleb That sounds insane. Are there any modern games that use this?

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1:18:08cubercaleb That sounds insane. Are there any modern games that use this?

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1:18:08cubercaleb That sounds insane. Are there any modern games that use this?

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1:18:52quikligames Could you just pre-render normally to an offscreen buffer, and then composite it with the primary frame buffer with the fade-out alpha?

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1:18:52quikligames Could you just pre-render normally to an offscreen buffer, and then composite it with the primary frame buffer with the fade-out alpha?

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1:18:52quikligames Could you just pre-render normally to an offscreen buffer, and then composite it with the primary frame buffer with the fade-out alpha?

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1:19:22d7 If the antialiasing didn't throw a wrench, you could have used the depth-buffer-front-to-back rendering method all the way, and compensate for some of the extra bandwidth on less overdraw

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1:19:22d7 If the antialiasing didn't throw a wrench, you could have used the depth-buffer-front-to-back rendering method all the way, and compensate for some of the extra bandwidth on less overdraw

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1:19:22d7 If the antialiasing didn't throw a wrench, you could have used the depth-buffer-front-to-back rendering method all the way, and compensate for some of the extra bandwidth on less overdraw

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1:20:36cubercaleb I mean that sounds like it has huge performance implications

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1:20:36cubercaleb I mean that sounds like it has huge performance implications

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1:20:36cubercaleb I mean that sounds like it has huge performance implications

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1:23:59sssmcgrath Speaking of your smoke example, did you see what David Rosen posted today?¹

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1:23:59sssmcgrath Speaking of your smoke example, did you see what David Rosen posted today?¹

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1:23:59sssmcgrath Speaking of your smoke example, did you see what David Rosen posted today?¹

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1:24:58cosmiczord I thought most games were only designed to max out console hardware?

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1:24:58cosmiczord I thought most games were only designed to max out console hardware?

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1:24:58cosmiczord I thought most games were only designed to max out console hardware?

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1:25:55Wrap it up

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1:25:55Wrap it up

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1:25:55Wrap it up

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