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-rw-r--r--modules/lightmapper_rd/lightmapper_rd.cpp45
-rw-r--r--modules/lightmapper_rd/lightmapper_rd.h9
-rw-r--r--modules/lightmapper_rd/lm_common_inc.glsl3
-rw-r--r--modules/lightmapper_rd/lm_compute.glsl86
4 files changed, 98 insertions, 45 deletions
diff --git a/modules/lightmapper_rd/lightmapper_rd.cpp b/modules/lightmapper_rd/lightmapper_rd.cpp
index 214c60091c..2ce3715bea 100644
--- a/modules/lightmapper_rd/lightmapper_rd.cpp
+++ b/modules/lightmapper_rd/lightmapper_rd.cpp
@@ -51,7 +51,7 @@ void LightmapperRD::add_mesh(const MeshData &p_mesh) {
mesh_instances.push_back(mi);
}
-void LightmapperRD::add_directional_light(bool p_static, const Vector3 &p_direction, const Color &p_color, float p_energy, float p_angular_distance) {
+void LightmapperRD::add_directional_light(bool p_static, const Vector3 &p_direction, const Color &p_color, float p_energy, float p_angular_distance, float p_shadow_blur) {
Light l;
l.type = LIGHT_TYPE_DIRECTIONAL;
l.direction[0] = p_direction.x;
@@ -62,11 +62,12 @@ void LightmapperRD::add_directional_light(bool p_static, const Vector3 &p_direct
l.color[2] = p_color.b;
l.energy = p_energy;
l.static_bake = p_static;
- l.size = p_angular_distance;
+ l.size = Math::tan(Math::deg2rad(p_angular_distance));
+ l.shadow_blur = p_shadow_blur;
lights.push_back(l);
}
-void LightmapperRD::add_omni_light(bool p_static, const Vector3 &p_position, const Color &p_color, float p_energy, float p_range, float p_attenuation, float p_size) {
+void LightmapperRD::add_omni_light(bool p_static, const Vector3 &p_position, const Color &p_color, float p_energy, float p_range, float p_attenuation, float p_size, float p_shadow_blur) {
Light l;
l.type = LIGHT_TYPE_OMNI;
l.position[0] = p_position.x;
@@ -80,10 +81,11 @@ void LightmapperRD::add_omni_light(bool p_static, const Vector3 &p_position, con
l.energy = p_energy;
l.static_bake = p_static;
l.size = p_size;
+ l.shadow_blur = p_shadow_blur;
lights.push_back(l);
}
-void LightmapperRD::add_spot_light(bool p_static, const Vector3 &p_position, const Vector3 p_direction, const Color &p_color, float p_energy, float p_range, float p_attenuation, float p_spot_angle, float p_spot_attenuation, float p_size) {
+void LightmapperRD::add_spot_light(bool p_static, const Vector3 &p_position, const Vector3 p_direction, const Color &p_color, float p_energy, float p_range, float p_attenuation, float p_spot_angle, float p_spot_attenuation, float p_size, float p_shadow_blur) {
Light l;
l.type = LIGHT_TYPE_SPOT;
l.position[0] = p_position.x;
@@ -102,6 +104,7 @@ void LightmapperRD::add_spot_light(bool p_static, const Vector3 &p_position, con
l.energy = p_energy;
l.static_bake = p_static;
l.size = p_size;
+ l.shadow_blur = p_shadow_blur;
lights.push_back(l);
}
@@ -1140,6 +1143,23 @@ LightmapperRD::BakeError LightmapperRD::bake(BakeQuality p_quality, bool p_use_d
RID light_uniform_set = rd->uniform_set_create(uniforms, compute_shader_primary, 1);
+ switch (p_quality) {
+ case BAKE_QUALITY_LOW: {
+ push_constant.ray_count = GLOBAL_GET("rendering/lightmapping/bake_quality/low_quality_ray_count");
+ } break;
+ case BAKE_QUALITY_MEDIUM: {
+ push_constant.ray_count = GLOBAL_GET("rendering/lightmapping/bake_quality/medium_quality_ray_count");
+ } break;
+ case BAKE_QUALITY_HIGH: {
+ push_constant.ray_count = GLOBAL_GET("rendering/lightmapping/bake_quality/high_quality_ray_count");
+ } break;
+ case BAKE_QUALITY_ULTRA: {
+ push_constant.ray_count = GLOBAL_GET("rendering/lightmapping/bake_quality/ultra_quality_ray_count");
+ } break;
+ }
+
+ push_constant.ray_count = CLAMP(push_constant.ray_count, 16u, 8192u);
+
RD::ComputeListID compute_list = rd->compute_list_begin();
rd->compute_list_bind_compute_pipeline(compute_list, compute_shader_primary_pipeline);
rd->compute_list_bind_uniform_set(compute_list, compute_base_uniform_set, 0);
@@ -1230,23 +1250,6 @@ LightmapperRD::BakeError LightmapperRD::bake(BakeQuality p_quality, bool p_use_d
uniforms.write[1].set_id(0, light_dest_tex);
secondary_uniform_set[1] = rd->uniform_set_create(uniforms, compute_shader_secondary, 1);
- switch (p_quality) {
- case BAKE_QUALITY_LOW: {
- push_constant.ray_count = GLOBAL_GET("rendering/lightmapping/bake_quality/low_quality_ray_count");
- } break;
- case BAKE_QUALITY_MEDIUM: {
- push_constant.ray_count = GLOBAL_GET("rendering/lightmapping/bake_quality/medium_quality_ray_count");
- } break;
- case BAKE_QUALITY_HIGH: {
- push_constant.ray_count = GLOBAL_GET("rendering/lightmapping/bake_quality/high_quality_ray_count");
- } break;
- case BAKE_QUALITY_ULTRA: {
- push_constant.ray_count = GLOBAL_GET("rendering/lightmapping/bake_quality/ultra_quality_ray_count");
- } break;
- }
-
- push_constant.ray_count = CLAMP(push_constant.ray_count, 16u, 8192u);
-
int max_region_size = nearest_power_of_2_templated(int(GLOBAL_GET("rendering/lightmapping/bake_performance/region_size")));
int max_rays = GLOBAL_GET("rendering/lightmapping/bake_performance/max_rays_per_pass");
diff --git a/modules/lightmapper_rd/lightmapper_rd.h b/modules/lightmapper_rd/lightmapper_rd.h
index bf9f9b5954..8cb4b58a18 100644
--- a/modules/lightmapper_rd/lightmapper_rd.h
+++ b/modules/lightmapper_rd/lightmapper_rd.h
@@ -57,8 +57,9 @@ class LightmapperRD : public Lightmapper {
float attenuation = 0.0;
float cos_spot_angle = 0.0;
float inv_spot_attenuation = 0.0;
+ float shadow_blur = 0.0;
uint32_t static_bake = 0;
- uint32_t pad[3] = {};
+ uint32_t pad[2] = {};
bool operator<(const Light &p_light) const {
return type < p_light.type;
@@ -236,9 +237,9 @@ class LightmapperRD : public Lightmapper {
public:
virtual void add_mesh(const MeshData &p_mesh) override;
- virtual void add_directional_light(bool p_static, const Vector3 &p_direction, const Color &p_color, float p_energy, float p_angular_distance) override;
- virtual void add_omni_light(bool p_static, const Vector3 &p_position, const Color &p_color, float p_energy, float p_range, float p_attenuation, float p_size) override;
- virtual void add_spot_light(bool p_static, const Vector3 &p_position, const Vector3 p_direction, const Color &p_color, float p_energy, float p_range, float p_attenuation, float p_spot_angle, float p_spot_attenuation, float p_size) override;
+ virtual void add_directional_light(bool p_static, const Vector3 &p_direction, const Color &p_color, float p_energy, float p_angular_distance, float p_shadow_blur) override;
+ virtual void add_omni_light(bool p_static, const Vector3 &p_position, const Color &p_color, float p_energy, float p_range, float p_attenuation, float p_size, float p_shadow_blur) override;
+ virtual void add_spot_light(bool p_static, const Vector3 &p_position, const Vector3 p_direction, const Color &p_color, float p_energy, float p_range, float p_attenuation, float p_spot_angle, float p_spot_attenuation, float p_size, float p_shadow_blur) override;
virtual void add_probe(const Vector3 &p_position) override;
virtual BakeError bake(BakeQuality p_quality, bool p_use_denoiser, int p_bounces, float p_bias, int p_max_texture_size, bool p_bake_sh, GenerateProbes p_generate_probes, const Ref<Image> &p_environment_panorama, const Basis &p_environment_transform, BakeStepFunc p_step_function = nullptr, void *p_bake_userdata = nullptr) override;
diff --git a/modules/lightmapper_rd/lm_common_inc.glsl b/modules/lightmapper_rd/lm_common_inc.glsl
index 58523dc1f8..e0e8000f56 100644
--- a/modules/lightmapper_rd/lm_common_inc.glsl
+++ b/modules/lightmapper_rd/lm_common_inc.glsl
@@ -51,8 +51,9 @@ struct Light {
float cos_spot_angle;
float inv_spot_attenuation;
+ float shadow_blur;
bool static_bake;
- uint pad[3];
+ uint pad[2];
};
layout(set = 0, binding = 4, std430) restrict readonly buffer Lights {
diff --git a/modules/lightmapper_rd/lm_compute.glsl b/modules/lightmapper_rd/lm_compute.glsl
index 0b6b72a310..efa6cd50b4 100644
--- a/modules/lightmapper_rd/lm_compute.glsl
+++ b/modules/lightmapper_rd/lm_compute.glsl
@@ -316,19 +316,24 @@ void main() {
for (uint i = 0; i < params.light_count; i++) {
vec3 light_pos;
+ float dist;
float attenuation;
+ float soft_shadowing_disk_size;
if (lights.data[i].type == LIGHT_TYPE_DIRECTIONAL) {
vec3 light_vec = lights.data[i].direction;
light_pos = position - light_vec * length(params.world_size);
+ dist = length(params.world_size);
attenuation = 1.0;
+ soft_shadowing_disk_size = lights.data[i].size;
} else {
light_pos = lights.data[i].position;
- float d = distance(position, light_pos);
- if (d > lights.data[i].range) {
+ dist = distance(position, light_pos);
+ if (dist > lights.data[i].range) {
continue;
}
+ soft_shadowing_disk_size = lights.data[i].size / dist;
- attenuation = get_omni_attenuation(d, 1.0 / lights.data[i].range, lights.data[i].attenuation);
+ attenuation = get_omni_attenuation(dist, 1.0 / lights.data[i].range, lights.data[i].attenuation);
if (lights.data[i].type == LIGHT_TYPE_SPOT) {
vec3 rel = normalize(position - light_pos);
@@ -352,27 +357,70 @@ void main() {
continue; //no need to do anything
}
- if (trace_ray(position + light_dir * params.bias, light_pos) == RAY_MISS) {
- vec3 light = lights.data[i].color * lights.data[i].energy * attenuation;
- if (lights.data[i].static_bake) {
- static_light += light;
-#ifdef USE_SH_LIGHTMAPS
+ float penumbra = 0.0;
+ if (lights.data[i].size > 0.0) {
+ vec3 light_to_point = -light_dir;
+ vec3 aux = light_to_point.y < 0.777 ? vec3(0.0, 1.0, 0.0) : vec3(1.0, 0.0, 0.0);
+ vec3 light_to_point_tan = normalize(cross(light_to_point, aux));
+ vec3 light_to_point_bitan = normalize(cross(light_to_point, light_to_point_tan));
+
+ const uint shadowing_rays_check_penumbra_denom = 2;
+ uint shadowing_ray_count = params.ray_count;
+
+ uint hits = 0;
+ uint noise = random_seed(ivec3(atlas_pos, 43573547 /* some prime */));
+ vec3 light_disk_to_point = light_to_point;
+ for (uint j = 0; j < shadowing_ray_count; j++) {
+ // Optimization:
+ // Once already traced an important proportion of rays, if all are hits or misses,
+ // assume we're not in the penumbra so we can infer the rest would have the same result
+ if (j == shadowing_ray_count / shadowing_rays_check_penumbra_denom) {
+ if (hits == j) {
+ // Assume totally lit
+ hits = shadowing_ray_count;
+ break;
+ } else if (hits == 0) {
+ // Assume totally dark
+ hits = 0;
+ break;
+ }
+ }
- float c[4] = float[](
- 0.282095, //l0
- 0.488603 * light_dir.y, //l1n1
- 0.488603 * light_dir.z, //l1n0
- 0.488603 * light_dir.x //l1p1
- );
+ float r = randomize(noise);
+ float a = randomize(noise) * 2.0 * PI;
+ vec2 disk_sample = (r * vec2(cos(a), sin(a))) * soft_shadowing_disk_size * lights.data[i].shadow_blur;
+ light_disk_to_point = normalize(light_to_point + disk_sample.x * light_to_point_tan + disk_sample.y * light_to_point_bitan);
- for (uint j = 0; j < 4; j++) {
- sh_accum[j].rgb += light * c[j] * (1.0 / 3.0);
+ if (trace_ray(position - light_disk_to_point * params.bias, position - light_disk_to_point * dist) == RAY_MISS) {
+ hits++;
}
-#endif
+ }
+ penumbra = float(hits) / float(shadowing_ray_count);
+ } else {
+ if (trace_ray(position + light_dir * params.bias, light_pos) == RAY_MISS) {
+ penumbra = 1.0;
+ }
+ }
- } else {
- dynamic_light += light;
+ vec3 light = lights.data[i].color * lights.data[i].energy * attenuation * penumbra;
+ if (lights.data[i].static_bake) {
+ static_light += light;
+#ifdef USE_SH_LIGHTMAPS
+
+ float c[4] = float[](
+ 0.282095, //l0
+ 0.488603 * light_dir.y, //l1n1
+ 0.488603 * light_dir.z, //l1n0
+ 0.488603 * light_dir.x //l1p1
+ );
+
+ for (uint j = 0; j < 4; j++) {
+ sh_accum[j].rgb += light * c[j] * (1.0 / 3.0);
}
+#endif
+
+ } else {
+ dynamic_light += light;
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 14:40:24 +0000