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-rw-r--r--scene/3d/baked_lightmap.cpp20
-rw-r--r--scene/3d/baked_lightmap.h4
-rw-r--r--scene/3d/voxel_light_baker.cpp75
-rw-r--r--scene/3d/voxel_light_baker.h2
4 files changed, 91 insertions, 10 deletions
diff --git a/scene/3d/baked_lightmap.cpp b/scene/3d/baked_lightmap.cpp
index 2b12e78158..c5ff4dadbc 100644
--- a/scene/3d/baked_lightmap.cpp
+++ b/scene/3d/baked_lightmap.cpp
@@ -221,6 +221,15 @@ Vector3 BakedLightmap::get_extents() const {
return extents;
}
+void BakedLightmap::set_bake_default_texels_per_unit(const float &p_bake_texels_per_unit) {
+ bake_default_texels_per_unit = p_bake_texels_per_unit;
+ update_gizmo();
+}
+
+float BakedLightmap::get_bake_default_texels_per_unit() const {
+ return bake_default_texels_per_unit;
+}
+
void BakedLightmap::_find_meshes_and_lights(Node *p_at_node, List<PlotMesh> &plot_meshes, List<PlotLight> &plot_lights) {
MeshInstance *mi = Object::cast_to<MeshInstance>(p_at_node);
@@ -236,7 +245,7 @@ void BakedLightmap::_find_meshes_and_lights(Node *p_at_node, List<PlotMesh> &plo
}
}
- if (all_have_uv2 && mesh->get_lightmap_size_hint() != Size2()) {
+ if (all_have_uv2) {
//READY TO BAKE! size hint could be computed if not found, actually..
AABB aabb = mesh->get_aabb();
@@ -463,7 +472,7 @@ BakedLightmap::BakeError BakedLightmap::bake(Node *p_from_node, bool p_create_vi
btd.text = RTR("Lighting Meshes: ") + mesh_name + " (" + itos(pmc) + "/" + itos(mesh_list.size()) + ")";
btd.pass = step;
btd.last_step = 0;
- err = baker.make_lightmap(E->get().local_xform, E->get().mesh, lm, _bake_time, &btd);
+ err = baker.make_lightmap(E->get().local_xform, E->get().mesh, bake_default_texels_per_unit, lm, _bake_time, &btd);
if (err != OK) {
bake_end_function();
if (err == ERR_SKIP)
@@ -473,7 +482,7 @@ BakedLightmap::BakeError BakedLightmap::bake(Node *p_from_node, bool p_create_vi
step += 100;
} else {
- err = baker.make_lightmap(E->get().local_xform, E->get().mesh, lm);
+ err = baker.make_lightmap(E->get().local_xform, E->get().mesh, bake_default_texels_per_unit, lm);
}
if (err == OK) {
@@ -790,6 +799,9 @@ void BakedLightmap::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_extents", "extents"), &BakedLightmap::set_extents);
ClassDB::bind_method(D_METHOD("get_extents"), &BakedLightmap::get_extents);
+ ClassDB::bind_method(D_METHOD("set_bake_default_texels_per_unit", "texels"), &BakedLightmap::set_bake_default_texels_per_unit);
+ ClassDB::bind_method(D_METHOD("get_bake_default_texels_per_unit"), &BakedLightmap::get_bake_default_texels_per_unit);
+
ClassDB::bind_method(D_METHOD("set_propagation", "propagation"), &BakedLightmap::set_propagation);
ClassDB::bind_method(D_METHOD("get_propagation"), &BakedLightmap::get_propagation);
@@ -814,6 +826,7 @@ void BakedLightmap::_bind_methods() {
ADD_PROPERTY(PropertyInfo(Variant::REAL, "bake_energy", PROPERTY_HINT_RANGE, "0,32,0.01"), "set_energy", "get_energy");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "bake_hdr"), "set_hdr", "is_hdr");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR3, "bake_extents"), "set_extents", "get_extents");
+ ADD_PROPERTY(PropertyInfo(Variant::REAL, "bake_default_texels_per_unit"), "set_bake_default_texels_per_unit", "get_bake_default_texels_per_unit");
ADD_GROUP("Capture", "capture_");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "capture_cell_size", PROPERTY_HINT_RANGE, "0.01,64,0.01"), "set_capture_cell_size", "get_capture_cell_size");
ADD_GROUP("Data", "");
@@ -836,6 +849,7 @@ void BakedLightmap::_bind_methods() {
BakedLightmap::BakedLightmap() {
extents = Vector3(10, 10, 10);
+ bake_default_texels_per_unit = 20;
bake_cell_size = 0.25;
capture_cell_size = 0.5;
diff --git a/scene/3d/baked_lightmap.h b/scene/3d/baked_lightmap.h
index bb3f84719a..fac4ad3908 100644
--- a/scene/3d/baked_lightmap.h
+++ b/scene/3d/baked_lightmap.h
@@ -119,6 +119,7 @@ private:
float bake_cell_size;
float capture_cell_size;
Vector3 extents;
+ float bake_default_texels_per_unit;
float propagation;
float energy;
BakeQuality bake_quality;
@@ -178,6 +179,9 @@ public:
void set_extents(const Vector3 &p_extents);
Vector3 get_extents() const;
+ void set_bake_default_texels_per_unit(const float &p_extents);
+ float get_bake_default_texels_per_unit() const;
+
void set_propagation(float p_propagation);
float get_propagation() const;
diff --git a/scene/3d/voxel_light_baker.cpp b/scene/3d/voxel_light_baker.cpp
index 75b419ca58..001d70dae9 100644
--- a/scene/3d/voxel_light_baker.cpp
+++ b/scene/3d/voxel_light_baker.cpp
@@ -1794,19 +1794,82 @@ void VoxelLightBaker::_lightmap_bake_point(uint32_t p_x, LightMap *p_line) {
}
}
-Error VoxelLightBaker::make_lightmap(const Transform &p_xform, Ref<Mesh> &p_mesh, LightMapData &r_lightmap, bool (*p_bake_time_func)(void *, float, float), void *p_bake_time_ud) {
+Error VoxelLightBaker::make_lightmap(const Transform &p_xform, Ref<Mesh> &p_mesh, float default_texels_per_unit, LightMapData &r_lightmap, bool (*p_bake_time_func)(void *, float, float), void *p_bake_time_ud) {
//transfer light information to a lightmap
Ref<Mesh> mesh = p_mesh;
- int width = mesh->get_lightmap_size_hint().x;
- int height = mesh->get_lightmap_size_hint().y;
-
//step 1 - create lightmap
+ int width;
+ int height;
Vector<LightMap> lightmap;
- lightmap.resize(width * height);
-
Transform xform = to_cell_space * p_xform;
+ if (mesh->get_lightmap_size_hint() == Size2()) {
+ double area = 0;
+ double uv_area = 0;
+ for (int i = 0; i < mesh->get_surface_count(); i++) {
+ Array arrays = mesh->surface_get_arrays(i);
+ PoolVector<Vector3> vertices = arrays[Mesh::ARRAY_VERTEX];
+ PoolVector<Vector2> uv2 = arrays[Mesh::ARRAY_TEX_UV2];
+ PoolVector<int> indices = arrays[Mesh::ARRAY_INDEX];
+
+ ERR_FAIL_COND_V(vertices.size() == 0, ERR_INVALID_PARAMETER);
+ ERR_FAIL_COND_V(uv2.size() == 0, ERR_INVALID_PARAMETER);
+
+ int vc = vertices.size();
+ PoolVector<Vector3>::Read vr = vertices.read();
+ PoolVector<Vector2>::Read u2r = uv2.read();
+ PoolVector<int>::Read ir;
+ int ic = 0;
+
+ if (indices.size()) {
+ ic = indices.size();
+ ir = indices.read();
+ }
+
+ int faces = ic ? ic / 3 : vc / 3;
+ for (int j = 0; j < faces; j++) {
+ Vector3 vertex[3];
+ Vector2 uv[3];
+
+ for (int k = 0; k < 3; k++) {
+ int idx = ic ? ir[j * 3 + k] : j * 3 + k;
+ vertex[k] = xform.xform(vr[idx]);
+ uv[k] = u2r[idx];
+ }
+
+ Vector3 p1 = vertex[0];
+ Vector3 p2 = vertex[1];
+ Vector3 p3 = vertex[2];
+ double a = p1.distance_to(p2);
+ double b = p2.distance_to(p3);
+ double c = p3.distance_to(p1);
+ double halfPerimeter = (a + b + c) / 2.0;
+ area += sqrt(halfPerimeter * (halfPerimeter - a) * (halfPerimeter - b) * (halfPerimeter - c));
+
+ Vector2 uv_p1 = uv[0];
+ Vector2 uv_p2 = uv[1];
+ Vector2 uv_p3 = uv[2];
+ double uv_a = uv_p1.distance_to(uv_p2);
+ double uv_b = uv_p2.distance_to(uv_p3);
+ double uv_c = uv_p3.distance_to(uv_p1);
+ double uv_halfPerimeter = (uv_a + uv_b + uv_c) / 2.0;
+ uv_area += sqrt(uv_halfPerimeter * (uv_halfPerimeter - uv_a) * (uv_halfPerimeter - uv_b) * (uv_halfPerimeter - uv_c));
+ }
+ }
+
+ if (uv_area < 0.0001f) {
+ uv_area = 1.0;
+ }
+
+ int pixels = (ceil((1.0 / sqrt(uv_area)) * sqrt(area * default_texels_per_unit)));
+ width = height = CLAMP(pixels, 2, 4096);
+ } else {
+ width = mesh->get_lightmap_size_hint().x;
+ height = mesh->get_lightmap_size_hint().y;
+ }
+
+ lightmap.resize(width * height);
//step 2 plot faces to lightmap
for (int i = 0; i < mesh->get_surface_count(); i++) {
diff --git a/scene/3d/voxel_light_baker.h b/scene/3d/voxel_light_baker.h
index 295e099d47..2e2efc62ff 100644
--- a/scene/3d/voxel_light_baker.h
+++ b/scene/3d/voxel_light_baker.h
@@ -177,7 +177,7 @@ public:
PoolVector<float> light;
};
- Error make_lightmap(const Transform &p_xform, Ref<Mesh> &p_mesh, LightMapData &r_lightmap, bool (*p_bake_time_func)(void *, float, float) = NULL, void *p_bake_time_ud = NULL);
+ Error make_lightmap(const Transform &p_xform, Ref<Mesh> &p_mesh, float default_texels_per_unit, LightMapData &r_lightmap, bool (*p_bake_time_func)(void *, float, float) = NULL, void *p_bake_time_ud = NULL);
PoolVector<int> create_gi_probe_data();
Ref<MultiMesh> create_debug_multimesh(DebugMode p_mode = DEBUG_ALBEDO);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 21:29:52 +0000