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[vulkan] Ensure dynamic lights are positional

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I'm not sure what's up with the weird lighting that results from dynamic
lights being directional (sunlight works nicely in marcher, but it has a
unit vector for position).
This commit is contained in:
Bill Currie 2022-05-05 19:55:35 +09:00
parent df5b471342
commit d60602421b
1 changed files with 4 additions and 2 deletions
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6
libs/video/renderer/vulkan/vulkan_lighting.c
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@ -102,10 +102,12 @@ update_lights (vulkan_ctx_t *ctx)
// dynamic lights seem a tad faint, so 16x map lights
light_data->lights[i].color[3] = lights[i]->radius / 16;
VectorCopy (lights[i]->origin, light_data->lights[i].position);
// dlights are local point sources
light_data->lights[i].position[3] = 1;
light_data->lights[i].attenuation =
(vec4f_t) { 0, 0, 1, 1/lights[i]->radius };
light_data->lights[i].direction =
(vec4f_t) { 0, 0, 1, 1 };
// full sphere, normal light (not ambient)
light_data->lights[i].direction = (vec4f_t) { 0, 0, 1, 1 };
}
for (size_t i = 0; (i < ldata->lightvis.size
&& light_data->lightCount < MaxLights); i++) {