57 lines
4.8 KiB
Plaintext
57 lines
4.8 KiB
Plaintext
[video output=day316 member=cmuratori stream_platform=twitch stream_username=handmade_hero project=code title="Multiple Software Render Targets" vod_platform=youtube id=NROKpZtyj_o annotator=Miblo]
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[0:57][Recap and set the stage for the day]
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[1:31][Debugger: Step into OpenGLRenderCommands() and inspect the Header]
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[2:23][handmade_render_group.cpp: Make PushRenderElement_() correctly compute the Entry->Offset]
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[3:51][Run the game and see how we're doing]
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[4:45][handmade_world_mode.cpp: Make AddStandardRoom() only generate one room, run the game and again assess our situation]
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[5:38][handmade_render_group.cpp: Ensure that PushRenderElement_() is correctly setting the Offset]
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[6:27][Run the game and see our baseline]
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[6:30][handmade_render_group.cpp: Tweak how BeginAggregateSortKey() and EndAggregateSortKey() work]
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[11:04][handmade_world_mode.cpp: Revert AddPlayer() to pushing the player sprites in logical order]
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[11:41][Run the game and identify that the head can still be sorted incorrectly when we have a cycle]
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[14:12][handmade_world_mode.cpp: Make AddStandardRoom() generate multiple rooms]
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[14:42][Run the game and find that we're now not getting those blinking tree bugs]
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[16:03][Run the game and consult the profiler]
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[17:20][build.bat: Switch to -O2, run the game and again consult the profiler]
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[19:24][Run the game and demo the problem with alpha blending]
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[20:52][handmade_entity.cpp: Make UpdateAndRenderEntities() draw the traversables in red]
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[21:25][Run the game and demo the alpha blending problem]
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[22:06][handmade_entity.cpp: Make UpdateAndRenderEntities() draw the traversables half as wide as normal]
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[22:36][Run the game and most clearly demo the alpha blending problem]
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[23:50][handmade_render.cpp: Consider introducing the notion of a coherent block for SortEntries() to use]
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[25:56][Run the game and toggle between the software and hardware renderers]
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[27:24][Blackboard: Multiple Render Targets]
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[31:46][handmade_render.cpp: Make SoftwareRenderCommands() take a TempArena, take a renamed FinalOutputTarget and reserve a second OutputTarget]
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[36:59]["Oh, we VirtualAlloc'd that. Wow, aren't we fancy!"][quote 511]
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[37:14][handmade_render.cpp: Make SoftwareRenderCommands() pass to PushSize() a call to AlignNoClear(16) in order to align it to 16-byte boundaries]
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[37:41][Run the game and see nothing on the screen]
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[37:59][handmade_render.cpp: Make SoftwareRenderCommands() copy the pixels from the OutputTarget in the FinalOutputTarget]
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[38:49][Run the game and see that we've made our renderer slower]
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[39:03][Blackboard: What SoftwareRenderCommands() is now doing]
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[39:37][handmade_render.cpp: Consider enabling SoftwareRenderCommands() to render to multiple render targets]
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[41:41][handmade_render_group.h: Add a RenderTargetIndex to the render_entry_cliprect struct]
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[43:14][handmade_render_group.cpp: Make PushClipRect() take a RenderTargetIndex in order that it can specify the RenderTarget to which it wants to render]
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[44:55][handmade_debug.h: Add RenderTarget to the debug_state struct]
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[45:21][handmade_render_group.cpp: Make PushClipRect() set RenderTargetIndex]
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[46:11][handmade_platform.h: Add MaxRenderTargetIndex to the game_render_commands struct]
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[46:34][handmade_render.cpp: Make SoftwareRenderCommands() clone the render buffers based on that RenderTargetCount]
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[49:53][handmade_render.h: Change OutputTarget to be a RenderTargets array in the tile_render_work struct]
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[50:21][handmade_render.cpp: Make RenderCommandsToBitmap() take a RenderTargets array]
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[52:54][handmade_debug.cpp: Make DEBUGBegin set the RenderTarget to 1]
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[53:33][Run the game and watch the debug information disappear into that other RenderTarget]
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[54:07][Q&A][:speech]
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[54:51][@popcorn][Next week?]
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[56:11][@necktrox][A bit unrelated to the project, but what do you think about the Rust language?]
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[56:39][@billdstrong][So when do we think we will be ready for the new graphics assets? I'm excited]
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[57:26][@sn0uk][Can you explain what this game is?]
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[59:16][@Miblo][Is writing to that other currently invisible render target much / any less computationally expensive than also sending it to the display?]
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[1:00:50][@soysaucethekid][With multiple rendering targets, are there other effects you can do other than the alpha blending?]
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[1:02:04][@necktrox][Are you going to support shaders and, if so, will you try to support multiple render targets in the shaders?]
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[1:04:02][@pandnh4][Are you excited to get an AArch64 toolchain up and running to get this thing to run on a Raspberry Pi 3?]
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[1:04:37][@lord_marshall_][Are you still working full time? Why only stream one hour a night?]
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[1:04:50][@se24vad][How would you go about rendering huge tilemaps? Some batching techniques, or any tips?]
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[1:06:05][@billdstrong][Would that be a good technique to use to create an overhead map?]
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[1:07:16][@insobot][Soa and aos questions can be made with as minimal interference in timing the host operating]
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[1:07:37][Close down][:speech]
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[/video]
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