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-rw-r--r--adapters/fparkan-render-vulkan/src/asset_mesh.rs23
-rw-r--r--adapters/fparkan-render-vulkan/src/ffi.rs3
2 files changed, 24 insertions, 2 deletions
diff --git a/adapters/fparkan-render-vulkan/src/asset_mesh.rs b/adapters/fparkan-render-vulkan/src/asset_mesh.rs
index f691b34..826e89a 100644
--- a/adapters/fparkan-render-vulkan/src/asset_mesh.rs
+++ b/adapters/fparkan-render-vulkan/src/asset_mesh.rs
@@ -1105,7 +1105,21 @@ fn project_land_msh_to_static_mesh_with_lod0(
pub fn project_land_msh_to_static_mesh_in_world_space(
terrain: &LandMeshDocument,
) -> Result<VulkanStaticMesh, VulkanAssetMeshError> {
- let lod0 = static_terrain_lod0_assignments(terrain)?;
+ project_land_msh_lod_to_static_mesh_in_world_space(terrain, TerrainLod::Lod0)
+}
+
+/// Projects one authored terrain LOD without changing source positions or attributes.
+///
+/// # Errors
+/// Returns an error for invalid slot assignments or an empty selected LOD.
+pub fn project_land_msh_lod_to_static_mesh_in_world_space(
+ terrain: &LandMeshDocument,
+ lod: TerrainLod,
+) -> Result<VulkanStaticMesh, VulkanAssetMeshError> {
+ let mut lod0 = terrain
+ .face_lod_assignments()
+ .map_err(VulkanAssetMeshError::InvalidTerrainLodMapping)?;
+ lod0.retain(|assignment| assignment.lod == lod);
let indices = static_terrain_indices(terrain, &lod0)?;
let vertices = terrain
.positions
@@ -2118,6 +2132,13 @@ mod tests {
assert_eq!(mesh.draw_ranges[0].index_count, 6);
assert_eq!(mesh.draw_ranges[0].material_index, 0x0101);
+ let far = project_land_msh_lod_to_static_mesh_in_world_space(&terrain, TerrainLod::Lod1)
+ .expect("LOD1 terrain projection");
+ assert_eq!(far.indices, [3, 4, 5, 3, 4, 5]);
+ assert_eq!(far.draw_ranges.len(), 1);
+ assert_eq!(far.draw_ranges[0].material_index, 0x0202);
+ assert_eq!(far.vertices[3].position, [10.0, 10.0, 10.0]);
+
terrain.nodes_raw.clear();
assert!(matches!(
project_land_msh_to_static_mesh_in_world_space(&terrain),
diff --git a/adapters/fparkan-render-vulkan/src/ffi.rs b/adapters/fparkan-render-vulkan/src/ffi.rs
index 9584405..b98fa0d 100644
--- a/adapters/fparkan-render-vulkan/src/ffi.rs
+++ b/adapters/fparkan-render-vulkan/src/ffi.rs
@@ -22,7 +22,8 @@ mod validation;
pub use self::asset_mesh::{
node38_pose, node38_pose_from_hierarchy, node38_pose_relative_to_root,
- node38_pose_relative_to_root_from_hierarchy, project_land_msh_to_static_mesh,
+ node38_pose_relative_to_root_from_hierarchy,
+ project_land_msh_lod_to_static_mesh_in_world_space, project_land_msh_to_static_mesh,
project_land_msh_to_static_mesh_in_world_space, project_land_msh_to_static_mesh_in_xy_frame,
project_msh_to_static_mesh, project_msh_to_static_mesh_in_world_space,
project_msh_to_static_mesh_in_world_space_with_node_fallback_poses,