Aligning Sampling Spheres with the Octahedral Map — Handmade Hero — Episode Guide

0:03Welcome to the stream

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0:03Welcome to the stream

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0:03Welcome to the stream

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0:09Demo our more tightly bound lighting region, at 33ms per frame

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0:09Demo our more tightly bound lighting region, at 33ms per frame

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0:09Demo our more tightly bound lighting region, at 33ms per frame

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1:59Determine to optimise the lighting ray caster, then improve the quality

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1:59Determine to optimise the lighting ray caster, then improve the quality

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1:59Determine to optimise the lighting ray caster, then improve the quality

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3:1180% frame time (40ms per frame) spent in FullCast()

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3:1180% frame time (40ms per frame) spent in FullCast()

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3:1180% frame time (40ms per frame) spent in FullCast()

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4:31Check the lighting performance statistics

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4:31Check the lighting performance statistics

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4:31Check the lighting performance statistics

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5:13Remove all mention of light probes from the entity system

9:35Check the lighting performance statistics, with the determination to simplify the full cast

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9:35Check the lighting performance statistics, with the determination to simplify the full cast

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9:35Check the lighting performance statistics, with the determination to simplify the full cast

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12:47Add a RaysPerProbe DEBUG_VALUE in EndLightingComputation()

14:18RaysPerProbe: 72

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14:18RaysPerProbe: 72

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14:18RaysPerProbe: 72

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14:40Determine to perform 64-ray stratified sampling

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14:40Determine to perform 64-ray stratified sampling

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14:40Determine to perform 64-ray stratified sampling

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17:25Set up to make FullCast() light the texels directly

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17:25Set up to make FullCast() light the texels directly

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17:25Set up to make FullCast() light the texels directly

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19:19Modify FullCast() to load and store back to the texels directly, introducing StoreF32_4X()

40:02Consider welding the texel loading / storing into RayCast()

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40:02Consider welding the texel loading / storing into RayCast()

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40:02Consider welding the texel loading / storing into RayCast()

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40:46Weld FullCast()'s texel loading / storing into RayCast(), removing raycast_result and TestCast()

51:37The light seems to accumulate infinitely

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51:37The light seems to accumulate infinitely

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51:37The light seems to accumulate infinitely

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52:20Consider relieving RayCast() of computing the normal

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52:20Consider relieving RayCast() of computing the normal

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52:20Consider relieving RayCast() of computing the normal

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54:41Try making FullCast() cast rays in known directions

57:22The lighting accumulates stably

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57:22The lighting accumulates stably

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57:22The lighting accumulates stably

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58:10Introduce GeneratePoissonLightingPattern() and GenerateOctahedralLightingPattern() based on GenerateLightingPattern(), and InterleaveDirections()

1:05:15Plan to generate a blue noise sphere to be evaluated within each tile

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1:05:15Plan to generate a blue noise sphere to be evaluated within each tile

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1:05:15Plan to generate a blue noise sphere to be evaluated within each tile

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1:07:34Introduce GeneratePoissonDistribution()

1:21:31Invoke hhsphere 16 16 sphere_test.inl

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1:21:31Invoke hhsphere 16 16 sphere_test.inl

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1:21:31Invoke hhsphere 16 16 sphere_test.inl

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1:23:25Peek at our lighting

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1:23:25Peek at our lighting

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1:23:25Peek at our lighting

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1:24:23Fix GenerateOctahedralLightingPattern() to pick from the octahedral map correctly

1:24:31Invoke hhsphere 16 16 handmade_sampling_spheres.inl

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1:24:31Invoke hhsphere 16 16 handmade_sampling_spheres.inl

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1:24:31Invoke hhsphere 16 16 handmade_sampling_spheres.inl

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1:25:35See no noise reappear

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1:25:35See no noise reappear

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1:25:35See no noise reappear

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1:25:49Double-check GenerateOctahedralLightingPattern() for bugs

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1:25:49Double-check GenerateOctahedralLightingPattern() for bugs

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1:25:49Double-check GenerateOctahedralLightingPattern() for bugs

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1:26:48The light has accumulated infinitely

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1:26:48The light has accumulated infinitely

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1:26:48The light has accumulated infinitely

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1:27:04Make EndLightingComputation() draw the sampling spheres

1:31:26See the submerged sampling sphere

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1:31:26See the submerged sampling sphere

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1:31:26See the submerged sampling sphere

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1:31:37Make EndLightingComputation() elevate the sampling spheres

1:32:02Admire our 2D sampling sphere

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1:32:02Admire our 2D sampling sphere

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1:32:02Admire our 2D sampling sphere

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1:32:28Fix GenerateOctahedralLightingPattern() to set the Pick before marking the Check as used

1:32:52Invoke hhsphere 16 16 handmade_sampling_spheres.inl

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1:32:52Invoke hhsphere 16 16 handmade_sampling_spheres.inl

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1:32:52Invoke hhsphere 16 16 handmade_sampling_spheres.inl

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1:33:31Admire our correctly 3D sampling sphere

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1:33:31Admire our correctly 3D sampling sphere

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1:33:31Admire our correctly 3D sampling sphere

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1:34:08Make EndLightingComputation() colourise the sampling sphere by region

1:34:34Admire our coloured sampling sphere

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1:34:34Admire our coloured sampling sphere

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1:34:34Admire our coloured sampling sphere

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1:35:01Toggle off the sampling sphere drawing in EndLightingComputation()

1:35:1875% frame time (30ms per frame) spent in FullCast()

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1:35:1875% frame time (30ms per frame) spent in FullCast()

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1:35:1875% frame time (30ms per frame) spent in FullCast()

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1:36:02Scour RayCast() and FullCast() for sampling bugs

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1:36:02Scour RayCast() and FullCast() for sampling bugs

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1:36:02Scour RayCast() and FullCast() for sampling bugs

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1:37:15Assert in FullCast() that RayBundleIndex <= LIGHT_SAMPLING_RAY_BUNDLES_PER_SPHERE

1:37:44Fail to hit that assertion

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1:37:44Fail to hit that assertion

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1:37:44Fail to hit that assertion

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1:37:52Assert in FullCast() that DirSampleIndex < LIGHT_SAMPLING_SPHERE_COUNT

1:38:02Fail to hit that assertion

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1:38:02Fail to hit that assertion

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1:38:02Fail to hit that assertion

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1:38:11Continue to scour FullCast() and RayCast() for sampling bugs

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1:38:11Continue to scour FullCast() and RayCast() for sampling bugs

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1:38:11Continue to scour FullCast() and RayCast() for sampling bugs

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1:40:19Fix RayCast() to correctly set S1 and S2

1:40:29Admire our correct lighting

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1:40:29Admire our correct lighting

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1:40:29Admire our correct lighting

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1:41:21Q&A

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1:41:21Q&A

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1:41:21Q&A

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1:42:04thetamiel Q: When will brogramming return?

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1:42:04thetamiel Q: When will brogramming return?

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1:42:04thetamiel Q: When will brogramming return?

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1:42:41mycon_ Q: I don't really use "static" anywhere and I've been fine without it. Am I doing something wrong?

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1:42:41mycon_ Q: I don't really use "static" anywhere and I've been fine without it. Am I doing something wrong?

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1:42:41mycon_ Q: I don't really use "static" anywhere and I've been fine without it. Am I doing something wrong?

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1:44:42czapa10 Q: Is 3D shear transformation useful in graphics programming for games? How to construct 4x4 shear matrix?

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1:44:42czapa10 Q: Is 3D shear transformation useful in graphics programming for games? How to construct 4x4 shear matrix?

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1:44:42czapa10 Q: Is 3D shear transformation useful in graphics programming for games? How to construct 4x4 shear matrix?

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1:46:48Shear Matrix

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1:46:48Shear Matrix

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1:46:48Shear Matrix

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1:52:38czapa10 Q: Yeah, makes sense. Thank you

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1:52:38czapa10 Q: Yeah, makes sense. Thank you

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1:52:38czapa10 Q: Yeah, makes sense. Thank you

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1:52:41mattiamanzati Q: Which kind of light does Handmade Hero support? Did I assume right it supports any as long you put light correctly? Maybe moon light can be a planar light put over rooms marked as "outside"

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1:52:41mattiamanzati Q: Which kind of light does Handmade Hero support? Did I assume right it supports any as long you put light correctly? Maybe moon light can be a planar light put over rooms marked as "outside"

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1:52:41mattiamanzati Q: Which kind of light does Handmade Hero support? Did I assume right it supports any as long you put light correctly? Maybe moon light can be a planar light put over rooms marked as "outside"

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1:53:45xxthebigfoxx Q: Can you check how much slower the build is if you define internal to nothing?

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1:53:45xxthebigfoxx Q: Can you check how much slower the build is if you define internal to nothing?

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1:53:45xxthebigfoxx Q: Can you check how much slower the build is if you define internal to nothing?

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1:54:064.887 seconds -O2 build

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1:54:064.887 seconds -O2 build

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1:54:064.887 seconds -O2 build

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1:54:232.203 seconds -Od build

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1:54:232.203 seconds -Od build

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1:54:232.203 seconds -Od build

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1:54:56#define internal to nothing

1:55:072.360 seconds -Od build, without internal

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1:55:072.360 seconds -Od build, without internal

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1:55:072.360 seconds -Od build, without internal

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1:55:22Remove hhsphere.cpp from the compilation

1:55:342.000 seconds -Od build, without internal or hhsphere.cpp

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1:55:342.000 seconds -Od build, without internal or hhsphere.cpp

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1:55:342.000 seconds -Od build, without internal or hhsphere.cpp

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1:55:43#define internal static

1:55:511.969 seconds -Od build, without hhsphere.cpp

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1:55:511.969 seconds -Od build, without hhsphere.cpp

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1:55:511.969 seconds -Od build, without hhsphere.cpp

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1:56:09#define internal to nothing

1:56:132.000 seconds -Od build, without internal or hhsphere.cpp

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1:56:132.000 seconds -Od build, without internal or hhsphere.cpp

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1:56:132.000 seconds -Od build, without internal or hhsphere.cpp

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1:56:23#define internal static

1:56:294.375 seconds -O2 build, without hhsphere.cpp

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1:56:294.375 seconds -O2 build, without hhsphere.cpp

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1:56:294.375 seconds -O2 build, without hhsphere.cpp

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1:56:53#define internal to nothing

1:56:564.657 seconds -O2 build, without internal or hhsphere.cpp (with an "unresolved external symbol memcpy" error)

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1:56:564.657 seconds -O2 build, without internal or hhsphere.cpp (with an "unresolved external symbol memcpy" error)

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1:56:564.657 seconds -O2 build, without internal or hhsphere.cpp (with an "unresolved external symbol memcpy" error)

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1:57:03Investigate the "unresolved external symbol memcpy" error

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1:57:03Investigate the "unresolved external symbol memcpy" error

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1:57:03Investigate the "unresolved external symbol memcpy" error

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1:58:54Mark Copy() as static rather than internal

1:58:57Build and still hit that "unresolved external symbol memcpy" error

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1:58:57Build and still hit that "unresolved external symbol memcpy" error

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1:58:57Build and still hit that "unresolved external symbol memcpy" error

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1:59:06Mark Copy() as internal

1:59:42#define internal static

1:59:444.390 seconds -O2 build, without hhsphere.cpp

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1:59:444.390 seconds -O2 build, without hhsphere.cpp

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1:59:444.390 seconds -O2 build, without hhsphere.cpp

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2:00:06redine_not_eu Q: You REM'd something and forgot to unREM it?

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2:00:06redine_not_eu Q: You REM'd something and forgot to unREM it?

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2:00:06redine_not_eu Q: You REM'd something and forgot to unREM it?

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2:00:44Wrap it up

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2:00:44Wrap it up

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2:00:44Wrap it up

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