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[vulkan] Use absolute light intensity/radius for size 

Many modders use negative lights for interesting effects, but vulkan
doesn't like the result of a negative int treated as unsigned when it
comes to texture sizes.
This commit is contained in:
Bill Currie 2022-05-11 13:29:17 +09:00
parent 27de599ac4
commit 45431a0bcc
1 changed files with 6 additions and 4 deletions
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10
libs/video/renderer/vulkan/vulkan_lighting.c
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@ -473,12 +473,14 @@ light_compare (const void *_li2, const void *_li1, void *_ldata)
lightingdata_t *ldata = _ldata;
const light_t *l1 = &ldata->lights.a[*li1];
const light_t *l2 = &ldata->lights.a[*li2];
int s1 = abs ((int) l1->color[3]);
int s2 = abs ((int) l2->color[3]);
if (l1->color[3] == l2->color[3]) {
if (s1 == s2) {
return (l1->position[3] == l2->position[3])
&& (l1->direction[3] > -0.5) == (l2->direction[3] > -0.5);
}
return l1->color[3] - l2->color[3];
return s1 - s2;
}
static VkImage
@ -607,14 +609,14 @@ build_shadow_maps (lightingctx_t *lctx, vulkan_ctx_t *ctx)
if (shadow == ST_CUBE) {
layers = 6;
}
if (size != (int) lights[li].color[3]
if (size != abs ((int) lights[li].color[3])
|| numLayers + layers > maxLayers) {
if (numLayers) {
VkImage shadow_map = create_map (size, numLayers, 1, ctx);
DARRAY_APPEND (&lctx->lightimages, shadow_map);
numLayers = 0;
}
size = lights[li].color[3];
size = abs ((int) lights[li].color[3]);
}
imageMap[li] = lctx->lightimages.size;
lctx->lightlayers.a[li] = numLayers;