Assorted CPU lightmapper fixes
- Fix crash when a ray hits a texel with a UV2 coordinate exactly equal to 1.0. - Take BakedLightmap extents into account. - Clear capture data between bakes. - Fix minor issues with seam correction.
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JFonS
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0b6dd929c6
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27c1e65969
@ -393,11 +393,11 @@ Vector3 LightmapperCPU::_fix_sample_position(const Vector3 &p_position, const Ve
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Vector3 target = p_texel_center + rotated_offset;
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Vector3 ray_vector = target - corrected;
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Vector3 ray_back_offset = -ray_vector.normalized() * parameters.bias;
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Vector3 ray_back_offset = -ray_vector.normalized() * parameters.bias / 2.0;
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Vector3 ray_origin = corrected + ray_back_offset;
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ray_vector = target - ray_origin;
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float ray_length = ray_vector.length();
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LightmapRaycaster::Ray ray(ray_origin + p_normal * parameters.bias, ray_vector.normalized(), 0.0f, ray_length + parameters.bias);
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LightmapRaycaster::Ray ray(ray_origin + p_normal * parameters.bias, ray_vector.normalized(), 0.0f, ray_length + parameters.bias / 2.0);
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bool hit = raycaster->intersect(ray);
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if (hit) {
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@ -476,8 +476,10 @@ void LightmapperCPU::_plot_triangle(const Vector2 *p_vertices, const Vector3 *p_
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Vector2 p = centroid;
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p[i] += 1;
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Vector3 bary = Geometry::barycentric_coordinates_2d(p, v0, v1, v2);
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Vector3 pos = p0 * bary[0] + p1 * bary[1] + p2 * bary[2];
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texel_size[i] = centroid_pos.distance_to(pos);
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if (bary.length() <= 1.0) {
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Vector3 pos = p0 * bary[0] + p1 * bary[1] + p2 * bary[2];
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texel_size[i] = centroid_pos.distance_to(pos);
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}
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}
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Vector<Vector2> pixel_polygon;
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@ -676,7 +678,7 @@ void LightmapperCPU::_plot_triangle(const Vector2 *p_vertices, const Vector3 *p_
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Vector2 texel_center = Vector2(i, j) + Vector2(0.5f, 0.5f);
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Vector3 texel_center_bary = Geometry::barycentric_coordinates_2d(texel_center, v0, v1, v2);
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if (!Math::is_nan(texel_center_bary.x) && !Math::is_nan(texel_center_bary.y) && !Math::is_nan(texel_center_bary.z) && !Math::is_inf(texel_center_bary.x) && !Math::is_inf(texel_center_bary.y) && !Math::is_inf(texel_center_bary.z)) {
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if (texel_center_bary.length_squared() <= 1.3 && !Math::is_nan(texel_center_bary.x) && !Math::is_nan(texel_center_bary.y) && !Math::is_nan(texel_center_bary.z) && !Math::is_inf(texel_center_bary.x) && !Math::is_inf(texel_center_bary.y) && !Math::is_inf(texel_center_bary.z)) {
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Vector3 texel_center_pos = p0 * texel_center_bary[0] + p1 * texel_center_bary[1] + p2 * texel_center_bary[2];
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pos = _fix_sample_position(pos, texel_center_pos, normal, tangent, bitangent, texel_size);
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}
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@ -855,8 +857,8 @@ void LightmapperCPU::_compute_indirect_light(uint32_t p_idx, void *r_lightmap) {
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unsigned int hit_mesh_id = ray.geomID;
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const Vector2i &size = mesh_instances[hit_mesh_id].size;
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int x = ray.u * size.x;
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int y = ray.v * size.y;
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int x = CLAMP(ray.u * size.x, 0, size.x - 1);
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int y = CLAMP(ray.v * size.y, 0, size.y - 1);
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const int idx = scene_lightmap_indices[hit_mesh_id][y * size.x + x];
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@ -988,7 +990,7 @@ void LightmapperCPU::_post_process(uint32_t p_idx, void *r_output) {
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void LightmapperCPU::_compute_seams(const MeshInstance &p_mesh, LocalVector<UVSeam> &r_seams) {
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float max_uv_distance = 1.0f / MAX(p_mesh.size.x, p_mesh.size.y);
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max_uv_distance *= max_uv_distance; // We use distance_to_squared(), so wee need to square the max distance as well
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float max_pos_distance = 0.0005f;
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float max_pos_distance = 0.00025f;
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float max_normal_distance = 0.05f;
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const Vector<Vector3> &points = p_mesh.data.points;
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@ -1026,9 +1028,26 @@ void LightmapperCPU::_compute_seams(const MeshInstance &p_mesh, LocalVector<UVSe
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for (unsigned int j = 0; j < edges.size(); j++) {
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const SeamEdge &edge0 = edges[j];
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if (edge0.uv[0].distance_squared_to(edge0.uv[1]) < 0.001) {
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continue;
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}
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if (edge0.pos[0].distance_squared_to(edge0.pos[1]) < 0.001) {
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continue;
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}
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for (unsigned int k = j + 1; k < edges.size() && edges[k].pos[0].x < (edge0.pos[0].x + max_pos_distance * 1.1f); k++) {
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const SeamEdge &edge1 = edges[k];
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if (edge1.uv[0].distance_squared_to(edge1.uv[1]) < 0.001) {
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continue;
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}
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if (edge1.pos[0].distance_squared_to(edge1.pos[1]) < 0.001) {
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continue;
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}
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if (edge0.uv[0].distance_squared_to(edge1.uv[0]) < max_uv_distance && edge0.uv[1].distance_squared_to(edge1.uv[1]) < max_uv_distance) {
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continue;
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}
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@ -147,6 +147,14 @@ void BakedLightmapData::clear_users() {
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users.clear();
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}
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void BakedLightmapData::clear_data() {
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clear_users();
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if (baked_light.is_valid()) {
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VS::get_singleton()->free(baked_light);
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}
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baked_light = VS::get_singleton()->lightmap_capture_create();
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}
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void BakedLightmapData::_set_user_data(const Array &p_data) {
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// Detect old lightmapper format
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@ -226,6 +234,7 @@ void BakedLightmapData::_bind_methods() {
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ClassDB::bind_method(D_METHOD("get_user_path", "user_idx"), &BakedLightmapData::get_user_path);
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ClassDB::bind_method(D_METHOD("get_user_lightmap", "user_idx"), &BakedLightmapData::get_user_lightmap);
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ClassDB::bind_method(D_METHOD("clear_users"), &BakedLightmapData::clear_users);
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ClassDB::bind_method(D_METHOD("clear_data"), &BakedLightmapData::clear_data);
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ADD_PROPERTY(PropertyInfo(Variant::AABB, "bounds", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_bounds", "get_bounds");
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ADD_PROPERTY(PropertyInfo(Variant::TRANSFORM, "cell_space_transform", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_cell_space_transform", "get_cell_space_transform");
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@ -317,6 +326,9 @@ Size2i BakedLightmap::_compute_lightmap_size(const MeshesFound &p_mesh) {
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}
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void BakedLightmap::_find_meshes_and_lights(Node *p_at_node, Vector<MeshesFound> &meshes, Vector<LightsFound> &lights) {
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AABB bounds = AABB(-extents, extents * 2.0);
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MeshInstance *mi = Object::cast_to<MeshInstance>(p_at_node);
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if (mi && mi->get_flag(GeometryInstance::FLAG_USE_BAKED_LIGHT) && mi->is_visible_in_tree()) {
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Ref<Mesh> mesh = mi->get_mesh();
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@ -339,27 +351,34 @@ void BakedLightmap::_find_meshes_and_lights(Node *p_at_node, Vector<MeshesFound>
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}
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if (surfaces_found && all_have_uv2_and_normal) {
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MeshesFound mf;
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mf.cast_shadows = mi->get_cast_shadows_setting() != GeometryInstance::SHADOW_CASTING_SETTING_OFF;
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mf.generate_lightmap = mi->get_generate_lightmap();
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mf.xform = get_global_transform().affine_inverse() * mi->get_global_transform();
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mf.node_path = get_path_to(mi);
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mf.subindex = -1;
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mf.mesh = mesh;
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static const int lightmap_scale[4] = { 1, 2, 4, 8 }; //GeometryInstance3D::LIGHTMAP_SCALE_MAX = { 1, 2, 4, 8 };
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mf.lightmap_scale = lightmap_scale[mi->get_lightmap_scale()];
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Transform mesh_xform = get_global_transform().affine_inverse() * mi->get_global_transform();
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Ref<Material> all_override = mi->get_material_override();
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for (int i = 0; i < mesh->get_surface_count(); i++) {
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if (all_override.is_valid()) {
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mf.overrides.push_back(all_override);
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} else {
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mf.overrides.push_back(mi->get_surface_material(i));
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AABB aabb = mesh_xform.xform(mesh->get_aabb());
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if (bounds.intersects(aabb)) {
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MeshesFound mf;
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mf.cast_shadows = mi->get_cast_shadows_setting() != GeometryInstance::SHADOW_CASTING_SETTING_OFF;
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mf.generate_lightmap = mi->get_generate_lightmap();
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mf.xform = mesh_xform;
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mf.node_path = get_path_to(mi);
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mf.subindex = -1;
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mf.mesh = mesh;
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static const int lightmap_scale[4] = { 1, 2, 4, 8 }; //GeometryInstance3D::LIGHTMAP_SCALE_MAX = { 1, 2, 4, 8 };
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mf.lightmap_scale = lightmap_scale[mi->get_lightmap_scale()];
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Ref<Material> all_override = mi->get_material_override();
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for (int i = 0; i < mesh->get_surface_count(); i++) {
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if (all_override.is_valid()) {
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mf.overrides.push_back(all_override);
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} else {
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mf.overrides.push_back(mi->get_surface_material(i));
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}
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}
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}
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meshes.push_back(mf);
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meshes.push_back(mf);
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}
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}
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}
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}
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@ -383,10 +402,16 @@ void BakedLightmap::_find_meshes_and_lights(Node *p_at_node, Vector<MeshesFound>
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continue;
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}
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MeshesFound mf;
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Transform mesh_xform = xf * bmeshes[i + 1];
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Transform mesh_xf = bmeshes[i + 1];
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mf.xform = xf * mesh_xf;
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AABB aabb = mesh_xform.xform(mesh->get_aabb());
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if (!bounds.intersects(aabb)) {
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continue;
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}
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MeshesFound mf;
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mf.xform = mesh_xform;
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mf.node_path = get_path_to(s);
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mf.subindex = i / 2;
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mf.lightmap_scale = 1;
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@ -770,7 +795,7 @@ BakedLightmap::BakeError BakedLightmap::bake(Node *p_from_node, String p_data_sa
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if (get_light_data().is_valid()) {
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data = get_light_data();
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set_light_data(Ref<BakedLightmapData>()); //clear
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data->clear_users();
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data->clear_data();
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} else {
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data.instance();
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}
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@ -91,6 +91,7 @@ public:
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Rect2 get_user_lightmap_uv_rect(int p_user) const;
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int get_user_instance(int p_user) const;
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void clear_users();
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void clear_data();
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virtual RID get_rid() const;
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BakedLightmapData();
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