cinera_handmade.network/cmuratori/hero/code/code339.hmml

[video output=day339 member=cmuratori stream_platform=twitch stream_username=handmade_hero project=code title="Debugging Particle Camera Offset Motion" vod_platform=youtube id=76TSb_HiKus annotator=Miblo]
[1:17][Run the game and consider our current situation with entities being incorrectly displaced while the camera moves]
[4:09][handmade_particles.cpp: Try temporarily nullifying the FrameDisplacement, run the game and see what happens]
[6:04][handmade_particles.h: Add FloorZ and ChunkZ to the particle_4x struct]
[8:08][handmade_particles.cpp: Make SpawnFire() take FloorZ and ChunkZ and enable UpdateAndRenderFire() to compute the transform from these values]
[13:48][Run the game to see if that affects things and consider why we see that sinusoidal slippage]
[26:13][Debugger: Step in to SpawnFire() and compare the transforms of a particle and its calling entity]
[30:07][handmade_particles.cpp: Make UpdateAndRenderFire() set the particle's OffsetP to OffsetP + P, before nullifying that P]
[33:06][Run the game and see if this is more correct]
[34:20][handmade_particles.cpp: Keep the particles in one place, run the game and watch how they move]
[38:16][build.bat: Switch to -O2, run the game, crash and investigate why]
[44:43][Explain the bug with us doing an unaligned load]
[46:46][handmade_world_mode.cpp: Pass AlignNoClear(16) to the PushStruct() call which sets the ParticleCache, run the game and find that that fixed it]
[47:19][Switch to the software renderer, observe the corkscrew motion in the particles and consider how to fix it]
[50:29][handmade_particles.cpp: Make UpdateAndRenderFire() pass 0 as the alignment to PushBitmap(), run the game to see if that affects it, and continue investigating]
[54:57][Q&A][:speech]
[55:17][@nxsy][Look at the screen border while you're doing it]
[57:17][@cyberpunkhobo][Entities get displaced by the modified CameraP during room transitions, I think]
[57:52][@cyberpunkhobo][What if you disable the parabolic camera transition between rooms?]
[58:27][handmade_sim_region.cpp: Toggle off the parabolic camera, run the game and see that the entity displacement is now solid]
[1:02:57][handmade_world_mode.cpp: Try setting CameraP.z and then CameraP.y to 0, run the game and see how that affects it]
[1:05:03][handmade_entity.cpp: Note that UpdateAndRenderEntities() is erroneously using the CameraOffset.z to set the floor height, and make it use CameraP]
[1:07:00][handmade_particles.cpp: Make UpdateAndRenderParticleSystems() and UpdateAndRenderFire() take CameraP]
[1:08:38][Run the game and see that it sort of worked]
[1:10:36][@mixthemeow][Full on 3D would probably be less complicated at this point]
[1:14:33][@boogie_improper][What is the difference between Handmade Hero and 1935?]
[1:14:56][@jayphi][So just now the fix only applied to the particles? Because the borders are still moving]
[1:15:12][@nxsy][In the code, I think they mean]
[1:19:12][@erdomina][Are we able to change the projection in this game?]
[1:19:36][@zuurr_][In UpdateAndRenderEntities (in handmade_entity.h) is the MovementMode_AngleAttackSwipe case missing a break or is the fall-through intentional]
[1:19:49][@dragoonx6][How far would you say you are with developing the game? How many episodes can we still expect?]
[1:21:16][@serge_rgb][Do you find it difficult to context-switch between 1935 and Handmade Hero, and, if so, has it gotten easier with time?]
[1:23:54][Go back and end the stream][:speech]
[/video]
Cinera 0.7.0 Update Add output parameter to all of hero/code, hero/intro-to-c and hero/misc, preserving the current URLs while allowing different .hmml filenames, notably for hero/misc which now gets sorted chronologically. Update the cinera__*.css files 2020-05-09 20:59:36 +00:00			`[video output=day339 member=cmuratori stream_platform=twitch stream_username=handmade_hero project=code title="Debugging Particle Camera Offset Motion" vod_platform=youtube id=76TSb_HiKus annotator=Miblo]`
Relocate riscy and add newly converted hero The idea here is to reduce the amount of superfluous stuff downloaded to each server running cinera 2017-12-06 22:26:13 +00:00			`[1:17][Run the game and consider our current situation with entities being incorrectly displaced while the camera moves]`
			`[4:09][handmade_particles.cpp: Try temporarily nullifying the FrameDisplacement, run the game and see what happens]`
			`[6:04][handmade_particles.h: Add FloorZ and ChunkZ to the particle_4x struct]`
			`[8:08][handmade_particles.cpp: Make SpawnFire() take FloorZ and ChunkZ and enable UpdateAndRenderFire() to compute the transform from these values]`
			`[13:48][Run the game to see if that affects things and consider why we see that sinusoidal slippage]`
			`[26:13][Debugger: Step in to SpawnFire() and compare the transforms of a particle and its calling entity]`
			`[30:07][handmade_particles.cpp: Make UpdateAndRenderFire() set the particle's OffsetP to OffsetP + P, before nullifying that P]`
			`[33:06][Run the game and see if this is more correct]`
			`[34:20][handmade_particles.cpp: Keep the particles in one place, run the game and watch how they move]`
			`[38:16][build.bat: Switch to -O2, run the game, crash and investigate why]`
			`[44:43][Explain the bug with us doing an unaligned load]`
			`[46:46][handmade_world_mode.cpp: Pass AlignNoClear(16) to the PushStruct() call which sets the ParticleCache, run the game and find that that fixed it]`
			`[47:19][Switch to the software renderer, observe the corkscrew motion in the particles and consider how to fix it]`
			`[50:29][handmade_particles.cpp: Make UpdateAndRenderFire() pass 0 as the alignment to PushBitmap(), run the game to see if that affects it, and continue investigating]`
Fix some incorrectly converted annotations Also apply some :speech categorisation 2018-03-07 21:48:09 +00:00			`[54:57][Q&A][:speech]`
Relocate riscy and add newly converted hero The idea here is to reduce the amount of superfluous stuff downloaded to each server running cinera 2017-12-06 22:26:13 +00:00			`[55:17][@nxsy][Look at the screen border while you're doing it]`
			`[57:17][@cyberpunkhobo][Entities get displaced by the modified CameraP during room transitions, I think]`
			`[57:52][@cyberpunkhobo][What if you disable the parabolic camera transition between rooms?]`
			`[58:27][handmade_sim_region.cpp: Toggle off the parabolic camera, run the game and see that the entity displacement is now solid]`
			`[1:02:57][handmade_world_mode.cpp: Try setting CameraP.z and then CameraP.y to 0, run the game and see how that affects it]`
			`[1:05:03][handmade_entity.cpp: Note that UpdateAndRenderEntities() is erroneously using the CameraOffset.z to set the floor height, and make it use CameraP]`
			`[1:07:00][handmade_particles.cpp: Make UpdateAndRenderParticleSystems() and UpdateAndRenderFire() take CameraP]`
			`[1:08:38][Run the game and see that it sort of worked]`
			`[1:10:36][@mixthemeow][Full on 3D would probably be less complicated at this point]`
			`[1:14:33][@boogie_improper][What is the difference between Handmade Hero and 1935?]`
			`[1:14:56][@jayphi][So just now the fix only applied to the particles? Because the borders are still moving]`
			`[1:15:12][@nxsy][In the code, I think they mean]`
			`[1:19:12][@erdomina][Are we able to change the projection in this game?]`
			`[1:19:36][@zuurr_][In UpdateAndRenderEntities (in handmade_entity.h) is the MovementMode_AngleAttackSwipe case missing a break or is the fall-through intentional]`
			`[1:19:49][@dragoonx6][How far would you say you are with developing the game? How many episodes can we still expect?]`
			`[1:21:16][@serge_rgb][Do you find it difficult to context-switch between 1935 and Handmade Hero, and, if so, has it gotten easier with time?]`
Fix some incorrectly converted annotations Also apply some :speech categorisation 2018-03-07 21:48:09 +00:00			`[1:23:54][Go back and end the stream][:speech]`
Relocate riscy and add newly converted hero The idea here is to reduce the amount of superfluous stuff downloaded to each server running cinera 2017-12-06 22:26:13 +00:00			`[/video]`