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https://github.com/Relintai/godot_voxel.git
synced 2024-11-19 02:47:18 +01:00
Facet extraction works with transparent sides
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c452d73a3a
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@ -3,7 +3,7 @@
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#include "voxel_mesh_builder.h"
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Voxel::Voxel() : Reference(),
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_id(0),
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_id(-1),
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_material_id(0),
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_is_transparent(false),
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_library(NULL),
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@ -12,7 +12,11 @@ Voxel::Voxel() : Reference(),
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Ref<Voxel> Voxel::set_id(int id) {
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ERR_FAIL_COND_V(id < 0 || id >= 256, Ref<Voxel>(this));
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// Cannot modify ID after creation
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ERR_FAIL_COND_V(_id != -1, Ref<Voxel>(this));
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_id = id;
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return Ref<Voxel>(this);
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}
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@ -173,6 +177,9 @@ void Voxel::_bind_methods() {
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ObjectTypeDB::bind_method(_MD("set_transparent:Voxel", "color"), &Voxel::set_transparent, DEFVAL(true));
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ObjectTypeDB::bind_method(_MD("is_transparent"), &Voxel::is_transparent);
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ObjectTypeDB::bind_method(_MD("set_material_id", "id"), &Voxel::set_material_id);
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ObjectTypeDB::bind_method(_MD("get_material_id"), &Voxel::get_material_id);
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ObjectTypeDB::bind_method(_MD("set_cube_geometry:Voxel", "height"), &Voxel::set_cube_geometry, DEFVAL(1.f));
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ObjectTypeDB::bind_method(_MD("set_cube_uv_all_sides:Voxel", "atlas_pos"), &Voxel::set_cube_uv_all_sides);
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ObjectTypeDB::bind_method(_MD("set_cube_uv_tbs_sides:Voxel", "top_atlas_pos", "side_atlas_pos", "bottom_atlas_pos"), &Voxel::set_cube_uv_tbs_sides);
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@ -1,7 +1,7 @@
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#include "voxel_library.h"
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VoxelLibrary::VoxelLibrary() : Reference(), _atlas_size(1) {
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create_voxel(0, "air")->set_transparent(true);
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}
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VoxelLibrary::~VoxelLibrary() {
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@ -149,6 +149,22 @@ void VoxelMeshBuilder::set_occlusion_enabled(bool enable) {
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inline Color Color_greyscale(float c) { return Color(c, c, c); }
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inline bool is_face_visible(const VoxelLibrary & lib, const Voxel & vt, int other_voxel_id) {
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if (other_voxel_id == 0) // air
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return true;
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if (lib.has_voxel(other_voxel_id)) {
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const Voxel & other_vt = lib.get_voxel_const(other_voxel_id);
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return other_vt.is_transparent() && vt.get_id() != other_voxel_id;
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}
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return true;
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}
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inline bool is_transparent(const VoxelLibrary & lib, int voxel_id) {
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if (lib.has_voxel(voxel_id))
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return lib.get_voxel_const(voxel_id).is_transparent();
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return true;
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}
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Ref<Mesh> VoxelMeshBuilder::build(Ref<VoxelBuffer> buffer_ref) {
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ERR_FAIL_COND_V(buffer_ref.is_null(), Ref<Mesh>());
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ERR_FAIL_COND_V(_library.is_null(), Ref<Mesh>());
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@ -194,7 +210,7 @@ Ref<Mesh> VoxelMeshBuilder::build(Ref<VoxelBuffer> buffer_ref) {
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int neighbor_voxel_id = buffer.get_voxel_local(nx, ny, nz, 0);
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// TODO Better face visibility test
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if (neighbor_voxel_id == 0) {
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if (is_face_visible(library, voxel, neighbor_voxel_id)) {
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// The face is visible
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@ -210,7 +226,7 @@ Ref<Mesh> VoxelMeshBuilder::build(Ref<VoxelBuffer> buffer_ref) {
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unsigned ex = x + edge_normal.x;
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unsigned ey = y + edge_normal.y;
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unsigned ez = z + edge_normal.z;
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if (buffer.get_voxel_local(ex, ey, ez) != 0) {
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if (!is_transparent(library, buffer.get_voxel_local(ex, ey, ez))) {
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shaded_corner[g_edge_corners[edge][0]] += 1;
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shaded_corner[g_edge_corners[edge][1]] += 1;
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}
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@ -225,7 +241,7 @@ Ref<Mesh> VoxelMeshBuilder::build(Ref<VoxelBuffer> buffer_ref) {
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unsigned int cx = x + corner_normal.x;
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unsigned int cy = y + corner_normal.y;
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unsigned int cz = z + corner_normal.z;
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if (buffer.get_voxel_local(cx, cy, cz) != 0) {
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if (!is_transparent(library, buffer.get_voxel_local(cx, cy, cz))) {
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shaded_corner[corner] += 1;
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}
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}
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@ -36,6 +36,7 @@ public:
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Ref<Mesh> build(Ref<VoxelBuffer> buffer_ref);
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protected:
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static void _bind_methods();
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};
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