diff options
| -rw-r--r-- | scene/resources/immediate_mesh.cpp | 13 | ||||
| -rw-r--r-- | servers/rendering_server.cpp | 39 |
2 files changed, 42 insertions, 10 deletions
diff --git a/scene/resources/immediate_mesh.cpp b/scene/resources/immediate_mesh.cpp index 3507df8bd8..dde556c264 100644 --- a/scene/resources/immediate_mesh.cpp +++ b/scene/resources/immediate_mesh.cpp @@ -166,7 +166,7 @@ void ImmediateMesh::surface_end() { normal_tangent_stride += sizeof(uint32_t); } uint32_t tangent_offset = 0; - if (uses_tangents) { + if (uses_tangents || uses_normals) { format |= ARRAY_FORMAT_TANGENT; tangent_offset = vertex_stride * vertices.size() + normal_tangent_stride; normal_tangent_stride += sizeof(uint32_t); @@ -202,9 +202,16 @@ void ImmediateMesh::surface_end() { *normal = value; } - if (uses_tangents) { + if (uses_tangents || uses_normals) { uint32_t *tangent = (uint32_t *)&surface_vertex_ptr[i * normal_tangent_stride + tangent_offset]; - Vector2 t = tangents[i].normal.octahedron_tangent_encode(tangents[i].d); + Vector2 t; + if (uses_tangents) { + t = tangents[i].normal.octahedron_tangent_encode(tangents[i].d); + } else { + Vector3 tan = Vector3(0.0, 1.0, 0.0).cross(normals[i].normalized()); + t = tan.octahedron_tangent_encode(1.0); + } + uint32_t value = 0; value |= (uint16_t)CLAMP(t.x * 65535, 0, 65535); value |= (uint16_t)CLAMP(t.y * 65535, 0, 65535) << 16; diff --git a/servers/rendering_server.cpp b/servers/rendering_server.cpp index 620262f30e..43615f0d7e 100644 --- a/servers/rendering_server.cpp +++ b/servers/rendering_server.cpp @@ -635,7 +635,8 @@ Error RenderingServer::_surface_set_data(Array p_arrays, uint64_t p_format, uint // If using compression we store tangent while storing vertices. if (!(p_format & RS::ARRAY_FLAG_COMPRESS_ATTRIBUTES)) { Variant::Type type = p_arrays[ai].get_type(); - ERR_FAIL_COND_V(type != Variant::PACKED_FLOAT32_ARRAY && type != Variant::PACKED_FLOAT64_ARRAY, ERR_INVALID_PARAMETER); + ERR_FAIL_COND_V(type != Variant::PACKED_FLOAT32_ARRAY && type != Variant::PACKED_FLOAT64_ARRAY && type != Variant::NIL, ERR_INVALID_PARAMETER); + if (type == Variant::PACKED_FLOAT32_ARRAY) { Vector<float> array = p_arrays[ai]; ERR_FAIL_COND_V(array.size() != p_vertex_array_len * 4, ERR_INVALID_PARAMETER); @@ -657,7 +658,7 @@ Error RenderingServer::_surface_set_data(Array p_arrays, uint64_t p_format, uint memcpy(&vw[p_offsets[ai] + i * p_normal_stride], vector, 4); } - } else { // PACKED_FLOAT64_ARRAY + } else if (type == Variant::PACKED_FLOAT64_ARRAY) { Vector<double> array = p_arrays[ai]; ERR_FAIL_COND_V(array.size() != p_vertex_array_len * 4, ERR_INVALID_PARAMETER); const double *src_ptr = array.ptr(); @@ -678,6 +679,30 @@ Error RenderingServer::_surface_set_data(Array p_arrays, uint64_t p_format, uint memcpy(&vw[p_offsets[ai] + i * p_normal_stride], vector, 4); } + } else { // No tangent array. + ERR_FAIL_COND_V(p_arrays[RS::ARRAY_NORMAL].get_type() != Variant::PACKED_VECTOR3_ARRAY, ERR_INVALID_PARAMETER); + + Vector<Vector3> normal_array = p_arrays[RS::ARRAY_NORMAL]; + ERR_FAIL_COND_V(normal_array.size() != p_vertex_array_len, ERR_INVALID_PARAMETER); + const Vector3 *normal_src = normal_array.ptr(); + // Set data for tangent. + for (int i = 0; i < p_vertex_array_len; i++) { + // Generate an arbitrary vector that is tangential to normal. + Vector3 tan = Vector3(0.0, 1.0, 0.0).cross(normal_src[i].normalized()); + Vector2 res = tan.octahedron_tangent_encode(1.0); + uint16_t vector[2] = { + (uint16_t)CLAMP(res.x * 65535, 0, 65535), + (uint16_t)CLAMP(res.y * 65535, 0, 65535), + }; + + if (vector[0] == 0 && vector[1] == 65535) { + // (1, 1) and (0, 1) decode to the same value, but (0, 1) messes with our compression detection. + // So we sanitize here. + vector[0] = 65535; + } + + memcpy(&vw[p_offsets[ai] + i * p_normal_stride], vector, 4); + } } } } break; @@ -1172,6 +1197,11 @@ Error RenderingServer::mesh_create_surface_data_from_arrays(SurfaceData *r_surfa } break; } ERR_FAIL_COND_V(array_len == 0, ERR_INVALID_DATA); + } else if (i == RS::ARRAY_NORMAL) { + if (p_arrays[RS::ARRAY_TANGENT].get_type() == Variant::NIL) { + // We must use tangents if using normals. + format |= (1ULL << RS::ARRAY_TANGENT); + } } else if (i == RS::ARRAY_BONES) { switch (p_arrays[i].get_type()) { case Variant::PACKED_INT32_ARRAY: { @@ -1242,11 +1272,6 @@ Error RenderingServer::mesh_create_surface_data_from_arrays(SurfaceData *r_surfa ERR_FAIL_COND_V_MSG(!(format & RS::ARRAY_FORMAT_NORMAL), ERR_INVALID_PARAMETER, "Can't use compression flag 'ARRAY_FLAG_COMPRESS_ATTRIBUTES' while using tangents without normal array."); } - if ((format & RS::ARRAY_FLAG_COMPRESS_ATTRIBUTES) && !(format & RS::ARRAY_FORMAT_TANGENT)) { - // If no tangent array provided, we will generate one. - format |= RS::ARRAY_FORMAT_TANGENT; - } - int vertex_array_size = (vertex_element_size + normal_element_size) * array_len; int attrib_array_size = attrib_element_size * array_len; int skin_array_size = skin_element_size * array_len; |