Switching from Center-Radius to Min-Max — Handmade Hero — Episode Guide

0:03Plug the Meow the Infinite printed comic Kickstarter¹

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0:03Plug the Meow the Infinite printed comic Kickstarter¹

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0:03Plug the Meow the Infinite printed comic Kickstarter¹

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0:25Recap our creation of hhlightprof

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0:25Recap our creation of hhlightprof

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0:25Recap our creation of hhlightprof

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1:26Demo hhlightprof (7.150223 total seconds elapsed)

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1:26Demo hhlightprof (7.150223 total seconds elapsed)

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1:26Demo hhlightprof (7.150223 total seconds elapsed)

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2:31Describe the two distinct ray casting / box categorisation routines in RayCast()

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2:31Describe the two distinct ray casting / box categorisation routines in RayCast()

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2:31Describe the two distinct ray casting / box categorisation routines in RayCast()

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4:46Describe the lighting_box structure, with the determination to reduce extraneous computations by storing the BoxMin and BoxMax

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4:46Describe the lighting_box structure, with the determination to reduce extraneous computations by storing the BoxMin and BoxMax

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4:46Describe the lighting_box structure, with the determination to reduce extraneous computations by storing the BoxMin and BoxMax

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6:50Replace P and Radius with BoxMin and BoxMax in lighting_box, and begin to propagate this change

7:28Why compute the BoxMin and BoxMax part way down the lighting pipeline?

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7:28Why compute the BoxMin and BoxMax part way down the lighting pipeline?

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7:28Why compute the BoxMin and BoxMax part way down the lighting pipeline?

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8:44Continue to update the lighting routines to use BoxMin and BoxMax

16:23Run hhlightprof to find that the light boxes and boxrefs don't match, because our storage format has changed

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16:23Run hhlightprof to find that the light boxes and boxrefs don't match, because our storage format has changed

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16:23Run hhlightprof to find that the light boxes and boxrefs don't match, because our storage format has changed

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17:02Enable hhlightprof to transform the old Center-Radius dump to the new Min-Max format

18:49hhlightprof total seconds elapsed (with the same results as earlier): 6.702761

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18:49hhlightprof total seconds elapsed (with the same results as earlier): 6.702761

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18:49hhlightprof total seconds elapsed (with the same results as earlier): 6.702761

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19:21Make a note to remove the dump transform from hhlightprof

19:47Reflect on our data storage / computation improvement

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19:47Reflect on our data storage / computation improvement

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19:47Reflect on our data storage / computation improvement

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20:34Further RayCast() optimisations

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20:34Further RayCast() optimisations

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20:34Further RayCast() optimisations

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22:17Further RayCast() optimisations: 1) How do we want to store our tree?

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22:17Further RayCast() optimisations: 1) How do we want to store our tree?

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22:17Further RayCast() optimisations: 1) How do we want to store our tree?

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22:40Further RayCast() optimisations: 2) What does our tree want to look like (e.g. k-d tree)?

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22:40Further RayCast() optimisations: 2) What does our tree want to look like (e.g. k-d tree)?

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22:40Further RayCast() optimisations: 2) What does our tree want to look like (e.g. k-d tree)?

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23:11Further RayCast() optimisations: 3) Do we want the ray casting and the box categorisation in the same loop?

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23:11Further RayCast() optimisations: 3) Do we want the ray casting and the box categorisation in the same loop?

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23:11Further RayCast() optimisations: 3) Do we want the ray casting and the box categorisation in the same loop?

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23:59Determine to investigate the efficiency of our information streaming

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23:59Determine to investigate the efficiency of our information streaming

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23:59Determine to investigate the efficiency of our information streaming

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24:54Separate the ray casting and box categorisation loops in RayCast()

26:17Augment lighting_work with a lighting_box_pack ScratchSpace array

27:26Make InternalLightingCore() initialise our new ScratchSpace, and make ProfileRun() in hhlightprof allocate space for it

30:56Memory per thread

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30:56Memory per thread

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30:56Memory per thread

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32:59Make a note to add memory per thread

33:50A few words on memory per thread

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33:50A few words on memory per thread

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33:50A few words on memory per thread

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34:55Run hhlightprof with the same results

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34:55Run hhlightprof with the same results

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34:55Run hhlightprof with the same results

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35:07Temporarily make RayCast() push lighting boxes onto the ScratchSpace

36:00Run hhlightprof with the same results

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36:00Run hhlightprof with the same results

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36:00Run hhlightprof with the same results

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36:07Revert RayCast() to push boxes onto the old stack array

36:40CTAssert() lighting_box_pack

36:59Make RayCast() do the box pushing and box categorisation in two passes

42:56Run hhlightprof with different results

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42:56Run hhlightprof with different results

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42:56Run hhlightprof with different results

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43:14Scour RayCast() for bugs

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43:14Scour RayCast() for bugs

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43:14Scour RayCast() for bugs

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44:48Use consistent language in both loops for accessing lighting_box_pack

45:05Continue to scour RayCast() for bugs

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45:05Continue to scour RayCast() for bugs

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45:05Continue to scour RayCast() for bugs

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45:55Remove the compiled-out code in RayCast()

46:04Continue to scour RayCast() for bugs

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46:04Continue to scour RayCast() for bugs

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46:04Continue to scour RayCast() for bugs

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46:33Run hhlightprof still with different results from originally

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46:33Run hhlightprof still with different results from originally

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46:33Run hhlightprof still with different results from originally

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47:01Toggle RayCast() back to the old one-pass code

47:09Run hhlightprof with the same results as originally

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47:09Run hhlightprof with the same results as originally

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47:09Run hhlightprof with the same results as originally

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47:12Toggle RayCast() to the new two-pass code

47:16Continue to hunt for inconsistencies between the one-pass and two-pass code in RayCast()

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47:16Continue to hunt for inconsistencies between the one-pass and two-pass code in RayCast()

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47:16Continue to hunt for inconsistencies between the one-pass and two-pass code in RayCast()

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48:33Fix the box pushing loop to only push a box if necessary

49:17Run hhlightprof with different results from originally

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49:17Run hhlightprof with different results from originally

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49:17Run hhlightprof with different results from originally

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50:08Continue to scour RayCast() for bugs

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50:08Continue to scour RayCast() for bugs

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50:08Continue to scour RayCast() for bugs

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51:01Assert in the box categorisation loop that the previously pushed box is a LeafContainer

51:23Run hhlightprof without hitting that assertion

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51:23Run hhlightprof without hitting that assertion

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51:23Run hhlightprof without hitting that assertion

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51:29Continue to scour RayCast() for bugs

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51:29Continue to scour RayCast() for bugs

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51:29Continue to scour RayCast() for bugs

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54:22redunlocked Q: The while(Depth) loop doesn't wrap the second loop

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54:22redunlocked Q: The while(Depth) loop doesn't wrap the second loop

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54:22redunlocked Q: The while(Depth) loop doesn't wrap the second loop

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54:56Continue to scour RayCast() for bugs

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54:56Continue to scour RayCast() for bugs

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54:56Continue to scour RayCast() for bugs

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55:14Make hhlightprof stream out to files the box leaves and partitions, introducing RECORD_LEAF_BOX() and RECORD_PARTITION_BOX()

59:53Run hhlightprof

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59:53Run hhlightprof

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59:53Run hhlightprof

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1:00:34Make hhlightprof only stream out the first run of box leaves and partitions

1:00:54Run hhlightprof

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1:00:54Run hhlightprof

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1:00:54Run hhlightprof

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1:00:59Rename our box leaves and partitions files to new*

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1:00:59Rename our box leaves and partitions files to new*

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1:00:59Rename our box leaves and partitions files to new*

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1:01:33Toggle RayCast() back to the old one-pass code

1:01:44Run hhlightprof

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1:01:44Run hhlightprof

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1:01:44Run hhlightprof

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1:01:48Rename our box leaves and partitions files to old*

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1:01:48Rename our box leaves and partitions files to old*

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1:01:48Rename our box leaves and partitions files to old*

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1:02:02Try to compare our partitions in Meld

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1:02:02Try to compare our partitions in Meld

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1:02:02Try to compare our partitions in Meld

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1:03:54Install Beyond Compare²

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1:03:54Install Beyond Compare²

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1:03:54Install Beyond Compare²

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1:04:59Compare our box leaves in Beyond Compare, to see differences

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1:04:59Compare our box leaves in Beyond Compare, to see differences

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1:04:59Compare our box leaves in Beyond Compare, to see differences

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1:06:13Compare our partitions in Beyond Compare, to see differences

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1:06:13Compare our partitions in Beyond Compare, to see differences

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1:06:13Compare our partitions in Beyond Compare, to see differences

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1:07:09Toggle RayCast() to the new two-pass code

1:07:16Scour RayCast() for a reason why we're pushing more boxes

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1:07:16Scour RayCast() for a reason why we're pushing more boxes

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1:07:16Scour RayCast() for a reason why we're pushing more boxes

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1:08:17Consult our box leaves differences in Beyond Compare

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1:08:17Consult our box leaves differences in Beyond Compare

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1:08:17Consult our box leaves differences in Beyond Compare

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1:10:16Continue to scour RayCast() for a reason why we're pushing more boxes

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1:10:16Continue to scour RayCast() for a reason why we're pushing more boxes

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1:10:16Continue to scour RayCast() for a reason why we're pushing more boxes

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1:10:36Assert in RayCast() that the partitioning loop does not receive a non-leaf container

1:10:55Toggle off the box / partition streaming in hhlightprof

1:11:54Run hhlightprof without hitting that assertion

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1:11:54Run hhlightprof without hitting that assertion

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1:11:54Run hhlightprof without hitting that assertion

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1:11:57Puzzle over our bug in RayCast()

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1:11:57Puzzle over our bug in RayCast()

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1:11:57Puzzle over our bug in RayCast()

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1:13:01Make ProfileRun() print out the total input and output boxes

1:14:05Run hhlightprof to find a mismatch between the total boxes counts

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1:14:05Run hhlightprof to find a mismatch between the total boxes counts

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1:14:05Run hhlightprof to find a mismatch between the total boxes counts

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1:14:28Consult our box leaves differences in Beyond Compare

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1:14:28Consult our box leaves differences in Beyond Compare

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1:14:28Consult our box leaves differences in Beyond Compare

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1:15:26Restrict our dumping to one ray's worth of work

1:18:00Run hhlightprof

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1:18:00Run hhlightprof

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1:18:00Run hhlightprof

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1:18:15Enable RECORD_RAYCAST_STACK

1:18:24Run hhlightprof

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1:18:24Run hhlightprof

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1:18:24Run hhlightprof

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1:18:30Rename our box leaves and partitions files to new*

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1:18:30Rename our box leaves and partitions files to new*

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1:18:30Rename our box leaves and partitions files to new*

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1:19:05Toggle RayCast() back to the old one-pass code

1:19:15Run hhlightprof

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1:19:15Run hhlightprof

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1:19:15Run hhlightprof

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1:19:16Find our box leaves and partitions dumps to match

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1:19:16Find our box leaves and partitions dumps to match

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1:19:16Find our box leaves and partitions dumps to match

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1:19:31Increase our dumping to sixteen rays' worth of work

1:20:13Run hhlightprof

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1:20:13Run hhlightprof

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1:20:13Run hhlightprof

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1:20:19Consult our box leaves and partitions files to see partition box indices lower than the input box count

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1:20:19Consult our box leaves and partitions files to see partition box indices lower than the input box count

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1:20:19Consult our box leaves and partitions files to see partition box indices lower than the input box count

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1:22:50Reacquaint ourselves with SplitBox()

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1:22:50Reacquaint ourselves with SplitBox()

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1:22:50Reacquaint ourselves with SplitBox()

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1:25:44Disable RECORD_RAYCAST_STACK

1:25:55hhlightprof total seconds elapsed: 6.682471

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1:25:55hhlightprof total seconds elapsed: 6.682471

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1:25:55hhlightprof total seconds elapsed: 6.682471

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1:26:08Prepare to remove the indirect table-read from SplitBox()

1:28:23Change SplitBox() to split boxes directly into storage, removing AddBoxReferences() and AddBoxReference()

1:36:38Update BuildSpatialPartitionForLighting() to use AddBoxStorage() instead of AddBoxReference()

1:37:36Run hhlightprof with a high max error / texel

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1:37:36Run hhlightprof with a high max error / texel

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1:37:36Run hhlightprof with a high max error / texel

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1:38:00Check all GetBox() calls, and SplitBox() for bugs

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1:38:00Check all GetBox() calls, and SplitBox() for bugs

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1:38:00Check all GetBox() calls, and SplitBox() for bugs

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1:40:28Fix AddBoxStorage() to correctly store the box index

1:40:45hhlightprof total seconds elapsed: 6.460956

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1:40:45hhlightprof total seconds elapsed: 6.460956

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1:40:45hhlightprof total seconds elapsed: 6.460956

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1:41:31Make a note to remove the BoxRefTable from lighting_solution, removing all mentions of them

1:42:45hhlightprof total seconds elapsed: 6.449993

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1:42:45hhlightprof total seconds elapsed: 6.449993

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1:42:45hhlightprof total seconds elapsed: 6.449993

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1:43:34Enable RECORD_RAYCAST_STACK

1:43:53Run hhlightprof

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1:43:53Run hhlightprof

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1:43:53Run hhlightprof

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1:44:02Consult our box leaves and partitions files to see high partition box indices, as expected, and rename the files to new*

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1:44:02Consult our box leaves and partitions files to see high partition box indices, as expected, and rename the files to new*

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1:44:02Consult our box leaves and partitions files to see high partition box indices, as expected, and rename the files to new*

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1:44:17Toggle RayCast() to the new two-pass code

1:44:26Run hhlightprof

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1:44:26Run hhlightprof

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1:44:26Run hhlightprof

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1:44:31Rename our box leaves and partitions files to new*, and diff them in Beyond Compare

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1:44:31Rename our box leaves and partitions files to new*, and diff them in Beyond Compare

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1:44:31Rename our box leaves and partitions files to new*, and diff them in Beyond Compare

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1:45:26Make RayCast() record box partition pushes, introducing RECORD_PARTITION_PUSH()

1:48:55Toggle RayCast() back to the old one-pass code

1:49:11Run hhlightprof and rename the files to old*

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1:49:11Run hhlightprof and rename the files to old*

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1:49:11Run hhlightprof and rename the files to old*

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1:49:52Fix RayCast() to call RECORD_PARTITION_PUSH() in the correct place

1:50:08Run hhlightprof and see our pushes in the files

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1:50:08Run hhlightprof and see our pushes in the files

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1:50:08Run hhlightprof and see our pushes in the files

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1:50:31Make RECORD_RAYCAST_END() append a newline after each ray

1:50:52Run hhlightprof, see our rays and rename the files to old*

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1:50:52Run hhlightprof, see our rays and rename the files to old*

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1:50:52Run hhlightprof, see our rays and rename the files to old*

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1:51:18Toggle RayCast() to the new two-pass code

1:51:34Run hhlightprof and rename the files to new*

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1:51:34Run hhlightprof and rename the files to new*

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1:51:34Run hhlightprof and rename the files to new*

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1:51:43Diff our partitions files in Beyond Compare, to see different treatment of boxes 1638 and 1844

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1:51:43Diff our partitions files in Beyond Compare, to see different treatment of boxes 1638 and 1844

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1:51:43Diff our partitions files in Beyond Compare, to see different treatment of boxes 1638 and 1844

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1:54:17Set up a breakpoint on box 1638 in RayCast(), and switch the build to -Od

1:55:54Toggle RayCast() back to the old one-pass code, and comment out the __debugbreak()

1:56:07Run hhlightprof and compare these box leaves and partitions with the existing old ones

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1:56:07Run hhlightprof and compare these box leaves and partitions with the existing old ones

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1:56:07Run hhlightprof and compare these box leaves and partitions with the existing old ones

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1:56:26Reinstate the __debugbreak() in RayCast()

1:56:36Run to our __debugbreak() and inspect the values

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1:56:36Run to our __debugbreak() and inspect the values

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1:56:36Run to our __debugbreak() and inspect the values

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1:57:43Determine to check that the leaf count is not larger than our available size

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1:57:43Determine to check that the leaf count is not larger than our available size

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1:57:43Determine to check that the leaf count is not larger than our available size

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1:59:00Make ProfileRun() save the GlobalMaxWorkStackDepth for RayCast() to assert the LeafCount against, toggling RayCast() back to the old one-pass code

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1:59:00Make ProfileRun() save the GlobalMaxWorkStackDepth for RayCast() to assert the LeafCount against, toggling RayCast() back to the old one-pass code

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1:59:00Make ProfileRun() save the GlobalMaxWorkStackDepth for RayCast() to assert the LeafCount against, toggling RayCast() back to the old one-pass code

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2:00:19Toggle RayCast() back to the old one-pass code

2:00:31Run hhlightprof and hit an assertion

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2:00:31Run hhlightprof and hit an assertion

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2:00:31Run hhlightprof and hit an assertion

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2:01:40Toggle off the __debugbreak() in RayCast()

2:02:07Run hhlightprof without hitting our LeafCount assertion

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2:02:07Run hhlightprof without hitting our LeafCount assertion

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2:02:07Run hhlightprof without hitting our LeafCount assertion

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2:02:14Step through RayCast() to see a consistently low LeafCount

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2:02:14Step through RayCast() to see a consistently low LeafCount

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2:02:14Step through RayCast() to see a consistently low LeafCount

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2:02:50Consider ProfileRun() to be allocating enough memory

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2:02:50Consider ProfileRun() to be allocating enough memory

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2:02:50Consider ProfileRun() to be allocating enough memory

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2:03:29Remove our LeafCount assertion from RayCast(), and reinstate the __debugbreak() calls on box 1638

2:04:14Run to our __debugbreak() and inspect Box 1638

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2:04:14Run to our __debugbreak() and inspect Box 1638

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2:04:14Run to our __debugbreak() and inspect Box 1638

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2:04:29RemedyBG feature request: Save Watch Window to File

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2:04:29RemedyBG feature request: Save Watch Window to File

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2:04:29RemedyBG feature request: Save Watch Window to File

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2:04:49Continue to inspect Box 1638, and save off its Min and Max

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2:04:49Continue to inspect Box 1638, and save off its Min and Max

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2:04:49Continue to inspect Box 1638, and save off its Min and Max

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2:07:27Realise that our two-loop RayCast() will necessarily test more boxes for partitioning because we pushed more leaves onto the stack

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2:07:27Realise that our two-loop RayCast() will necessarily test more boxes for partitioning because we pushed more leaves onto the stack

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2:07:27Realise that our two-loop RayCast() will necessarily test more boxes for partitioning because we pushed more leaves onto the stack

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2:08:43Remove the two-pass streaming from RayCast(), because we want to early-out

2:09:01Plan to go forward with k-d tree, testing the near side before the far side, and early-out if we hit

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2:09:01Plan to go forward with k-d tree, testing the near side before the far side, and early-out if we hit

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2:09:01Plan to go forward with k-d tree, testing the near side before the far side, and early-out if we hit

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2:09:52Remove the __debugbreak() calls from RayCast()

2:10:11Remove the ScratchBuffer from lighting_work

2:11:15Run hhlightprof successfully

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2:11:15Run hhlightprof successfully

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2:11:15Run hhlightprof successfully

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2:11:24Run the game successfully

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2:11:24Run the game successfully

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2:11:24Run the game successfully

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2:12:01Q&A

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2:12:01Q&A

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2:12:01Q&A

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2:12:38somebody_took_my_name Q: Just wanted to let you know we have an IsMemoryEqual() function. Nice debug work today

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2:12:38somebody_took_my_name Q: Just wanted to let you know we have an IsMemoryEqual() function. Nice debug work today

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2:12:38somebody_took_my_name Q: Just wanted to let you know we have an IsMemoryEqual() function. Nice debug work today

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2:13:48xxthebigfoxx Q: Off-topic, but I noticed your last blog post is dated 2019

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2:13:48xxthebigfoxx Q: Off-topic, but I noticed your last blog post is dated 2019

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2:13:48xxthebigfoxx Q: Off-topic, but I noticed your last blog post is dated 2019

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2:14:45x1bzzr Q: Why is it that software companies increasingly seem to not care about performance? I've heard you talk about the technical reasons, but I still don't understand why companies would give up on having better software quality than their competitors. Is it because education is bad? Is it because non-performance oriented software is being normalized to the point people don't care about it? Is it because hardware has been compensating for the lack of software performance?

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2:14:45x1bzzr Q: Why is it that software companies increasingly seem to not care about performance? I've heard you talk about the technical reasons, but I still don't understand why companies would give up on having better software quality than their competitors. Is it because education is bad? Is it because non-performance oriented software is being normalized to the point people don't care about it? Is it because hardware has been compensating for the lack of software performance?

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2:14:45x1bzzr Q: Why is it that software companies increasingly seem to not care about performance? I've heard you talk about the technical reasons, but I still don't understand why companies would give up on having better software quality than their competitors. Is it because education is bad? Is it because non-performance oriented software is being normalized to the point people don't care about it? Is it because hardware has been compensating for the lack of software performance?

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2:17:20recursivechat Q: Do you have a git repo for any of your code? Not necessarily Handmade Hero code but something small that I could read to see what sort of "patterns" you use to write good code

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2:17:20recursivechat Q: Do you have a git repo for any of your code? Not necessarily Handmade Hero code but something small that I could read to see what sort of "patterns" you use to write good code

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2:17:20recursivechat Q: Do you have a git repo for any of your code? Not necessarily Handmade Hero code but something small that I could read to see what sort of "patterns" you use to write good code

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2:19:04mattiamanzati Q: About my question before the stream started, I am looking for a doubly linked list structure, and usually that's done through a structure with a first and last entry pointers, and those have a structure with a next, prev and value pointers. (Let's call this entry_structure.) In order to add an item to the end of the list you need to create a new entry_structure, set the prev pointer to the previous last entry, and UPDATE THE LAST entry_structure in order to have next point to the new last item. Is there any other structure that represents a doubly linked list without this prerequisite?

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2:19:04mattiamanzati Q: About my question before the stream started, I am looking for a doubly linked list structure, and usually that's done through a structure with a first and last entry pointers, and those have a structure with a next, prev and value pointers. (Let's call this entry_structure.) In order to add an item to the end of the list you need to create a new entry_structure, set the prev pointer to the previous last entry, and UPDATE THE LAST entry_structure in order to have next point to the new last item. Is there any other structure that represents a doubly linked list without this prerequisite?

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2:19:04mattiamanzati Q: About my question before the stream started, I am looking for a doubly linked list structure, and usually that's done through a structure with a first and last entry pointers, and those have a structure with a next, prev and value pointers. (Let's call this entry_structure.) In order to add an item to the end of the list you need to create a new entry_structure, set the prev pointer to the previous last entry, and UPDATE THE LAST entry_structure in order to have next point to the new last item. Is there any other structure that represents a doubly linked list without this prerequisite?

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2:21:02xsinxdx Q: Are there any scalability / usability issues when using enums vs something like a hash table for indexing assets?

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2:21:02xsinxdx Q: Are there any scalability / usability issues when using enums vs something like a hash table for indexing assets?

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2:21:02xsinxdx Q: Are there any scalability / usability issues when using enums vs something like a hash table for indexing assets?

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2:23:10buildervanished Q: Do you know of some sane way of learning a bit of DirectX 11 other than trial and error while scavenging information on MSDN?

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2:23:10buildervanished Q: Do you know of some sane way of learning a bit of DirectX 11 other than trial and error while scavenging information on MSDN?

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2:23:10buildervanished Q: Do you know of some sane way of learning a bit of DirectX 11 other than trial and error while scavenging information on MSDN?

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2:23:20mindmark42 Q: How would you recommend writing assembly directly for a function if the complier refuses to optimize it the way you want?

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2:23:20mindmark42 Q: How would you recommend writing assembly directly for a function if the complier refuses to optimize it the way you want?

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2:23:20mindmark42 Q: How would you recommend writing assembly directly for a function if the complier refuses to optimize it the way you want?

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2:24:17chronic_quagga Q: How important is it, in game development and in general, to be concerned with microarchitecture-level optimizations and using metrics from CPU performance counters?

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2:24:17chronic_quagga Q: How important is it, in game development and in general, to be concerned with microarchitecture-level optimizations and using metrics from CPU performance counters?

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2:24:17chronic_quagga Q: How important is it, in game development and in general, to be concerned with microarchitecture-level optimizations and using metrics from CPU performance counters?

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2:24:51theintrojuicer Q: How many lines of code are there in the Handmade Hero project?

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2:24:51theintrojuicer Q: How many lines of code are there in the Handmade Hero project?

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2:24:51theintrojuicer Q: How many lines of code are there in the Handmade Hero project?

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2:25:1634,292 lines of code

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2:25:1634,292 lines of code

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2:25:1634,292 lines of code

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2:25:47thordura Q: If you do another programming discussion with Jon, do you think it would be valuable do a discussion about entity systems?

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2:25:47thordura Q: If you do another programming discussion with Jon, do you think it would be valuable do a discussion about entity systems?

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2:25:47thordura Q: If you do another programming discussion with Jon, do you think it would be valuable do a discussion about entity systems?

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2:26:14kniffel5 Q: Visual Studio 19 has support for x86 but not x64 assembly. Why's one in it, but the other isn't? Are they so different from each other?

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2:26:14kniffel5 Q: Visual Studio 19 has support for x86 but not x64 assembly. Why's one in it, but the other isn't? Are they so different from each other?

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2:26:14kniffel5 Q: Visual Studio 19 has support for x86 but not x64 assembly. Why's one in it, but the other isn't? Are they so different from each other?

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2:27:16thordura Q: I meant like what you guys consider is a good go-to approach to entities

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2:27:16thordura Q: I meant like what you guys consider is a good go-to approach to entities

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2:27:16thordura Q: I meant like what you guys consider is a good go-to approach to entities

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2:28:02Wonder if we heard back from mattiamanzati about the doubly linked list question

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2:28:02Wonder if we heard back from mattiamanzati about the doubly linked list question

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2:28:02Wonder if we heard back from mattiamanzati about the doubly linked list question

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2:29:21Wander around the orphanage

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2:29:21Wander around the orphanage

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2:29:21Wander around the orphanage

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2:29:59sagian2005 Q: I think they wanted to know if there is something that acts like a doubly linked list that isn't actually a doubly linked list

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2:29:59sagian2005 Q: I think they wanted to know if there is something that acts like a doubly linked list that isn't actually a doubly linked list

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2:29:59sagian2005 Q: I think they wanted to know if there is something that acts like a doubly linked list that isn't actually a doubly linked list

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2:30:42Wrap it up with a plug of the Meow the Infinite printed comic Kickstarter³ and the determination to raid Jon's stream⁴

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2:30:42Wrap it up with a plug of the Meow the Infinite printed comic Kickstarter³ and the determination to raid Jon's stream⁴

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2:30:42Wrap it up with a plug of the Meow the Infinite printed comic Kickstarter³ and the determination to raid Jon's stream⁴

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