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[vulkan] Add some comments to lighting code

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This commit is contained in:
Bill Currie 2023-12-12 21:13:14 +09:00
parent b86f49fe7c
commit 175e9fd7c9
1 changed files with 7 additions and 2 deletions
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9
libs/video/renderer/vulkan/vulkan_lighting.c
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@ -473,8 +473,6 @@ lighting_update_lights (const exprval_t **params, exprval_t *result,
auto bb = &bufferBarriers[qfv_BB_TransferWrite_to_UniformRead];
size_t packet_size = 0;
uint32_t light_ids[ST_COUNT][MaxLights];
uint32_t entids[ST_COUNT][MaxLights];
@ -507,6 +505,7 @@ lighting_update_lights (const exprval_t **params, exprval_t *result,
queue[mode].count++;
}
size_t packet_size = 0;
packet_size += sizeof (vec4f_t[NumStyles]);
if (queue[ST_CASCADE].count) {
uint32_t mat_count = queue[ST_CASCADE].count * num_cascade;
@ -1570,11 +1569,16 @@ light_compare (const void *_li2, const void *_li1, void *_lights)
int s2 = abs ((int) l2->color[3]);
if (s1 == s2) {
// same size
if (l1->position[3] == l2->position[3]) {
// same "type" (point/spot vs directional)
// sort by spot size (1 for point/directional)
return (l2->direction[3] > -0.5) - (l1->direction[3] > -0.5);
}
// sort by "type" (point/spot vs directional)
return l2->position[3] - l1->position[3];
}
// sort by size
return s1 - s2;
}
@ -1731,6 +1735,7 @@ build_shadow_maps (lightingctx_t *lctx, vulkan_ctx_t *ctx)
for (int i = 0; i < numLights; i++) {
lightMap[i] = i;
}
// sort lights by size, type, spot-size
heapsort_r (lightMap, numLights, sizeof (int), light_compare, lights);
DARRAY_RESIZE (&lctx->light_control, numLights + dynlight_max);