public void Init(
string name,
float[][] density_grids,
int grid_width_in_voxels,
int grid_height_in_voxels,
int grid_depth_in_voxels,
Vector3 voxel_size_in_meters,
int voxel_chunk_dimesnions,
bool generate_collision,
float iso_level,
float density_height_weight,
LayeredBrush brush,
bool cast_shadows,
bool is_liquid,
Material prepass_material,
BevelTuning bevel_tuning
)
{
m_voxel_chunk_dimensions = voxel_chunk_dimesnions;
m_voxel_size_in_meters = voxel_size_in_meters;
m_grid_width_in_voxels = grid_width_in_voxels;
m_grid_height_in_voxels = grid_height_in_voxels;
m_grid_depth_in_voxels = grid_depth_in_voxels;
m_empty_sample_grid = new byte[m_grid_width_in_voxels * m_grid_depth_in_voxels];
m_voxel_chunk_scratch_buffer = VoxelChunk.ScratchBuffer.CreateScratchBuffer();
m_layers = new VoxelLayer[m_grid_height_in_voxels];
m_brush = brush;
m_cast_shadows = cast_shadows;
m_prepass_material = prepass_material;
for (int y = 0; y < m_grid_height_in_voxels; ++y)
{
float bot_y = (float)(y - 1) * m_voxel_size_in_meters.y;
float top_y = (float)y * m_voxel_size_in_meters.y;
var layer = new VoxelLayer(name, density_grids[y], y, m_grid_width_in_voxels, m_grid_depth_in_voxels, m_voxel_chunk_dimensions, m_voxel_size_in_meters, iso_level, bot_y, top_y, generate_collision, density_height_weight, m_vertex_attribute_descriptors, is_liquid, bevel_tuning);
m_layers[y] = layer;
}
for (int y = 0; y < m_grid_height_in_voxels; ++y)
{
var layer_above_occlusion_grid = m_empty_sample_grid;
var layer_below_occlusion_grid = m_empty_sample_grid;
if (y > 0)
{
layer_below_occlusion_grid = m_layers[y - 1].GetSampleGrid();
}
if (y < m_grid_height_in_voxels - 2)
{
layer_above_occlusion_grid = m_layers[y + 1].GetSampleGrid();
}
m_layers[y].SetAboveAndBelowSampleGrids(layer_above_occlusion_grid, layer_below_occlusion_grid);
}
}
public VoxelLayer(
string name,
float[] density_grid,
int layer_idx,
int width_in_voxels,
int height_in_voxels,
int voxel_chunk_dimensions,
Vector3 voxel_size_in_meters,
float iso_level,
float bot_y,
float top_y,
bool generate_collision,
float density_height_weight,
VertexAttributeDescriptor[] vertex_attribute_descriptors,
bool is_liquid,
BevelTuning bevel_tuning
)
{
if (width_in_voxels % voxel_chunk_dimensions != 0)
{
throw new System.Exception($"width_in_voxels={width_in_voxels} is not a multiple of voxel_chunk_dimensions={voxel_chunk_dimensions}");
}
if (height_in_voxels % voxel_chunk_dimensions != 0)
{
throw new System.Exception($"width_in_voxels={height_in_voxels} is not a multiple of voxel_chunk_dimensions={voxel_chunk_dimensions}");
}
m_density_grid = density_grid;
m_sample_grid = new byte[width_in_voxels * height_in_voxels];
m_width_in_voxels = width_in_voxels;
m_height_in_voxels = height_in_voxels;
m_voxel_size_in_meters = voxel_size_in_meters;
m_voxel_chunk_dimensions = voxel_chunk_dimensions;
m_one_over_voxel_chunk_dimensions = 1f / (float)voxel_chunk_dimensions;
m_bot_y = bot_y;
m_top_y = top_y;
m_layer_idx = layer_idx;
m_vertex_attribute_descriptors = vertex_attribute_descriptors;
m_bevel_tuning = bevel_tuning;
m_width_in_chunks = width_in_voxels / voxel_chunk_dimensions;
m_height_in_chunks = height_in_voxels / voxel_chunk_dimensions;
m_voxel_chunks = new VoxelChunk[m_width_in_chunks * m_height_in_chunks];
m_bounds_grid = new BoundsEntry[m_width_in_chunks * m_height_in_chunks];
for (int y = 0, chunk_idx = 0; y < m_height_in_chunks; ++y)
{
for (int x = 0; x < m_width_in_chunks; ++x, ++chunk_idx)
{
var bounds = GetChunkBounds(x, y);
m_voxel_chunks[chunk_idx] = new VoxelChunk(name, x * voxel_chunk_dimensions, y * voxel_chunk_dimensions, voxel_chunk_dimensions, width_in_voxels, height_in_voxels, m_density_grid, m_sample_grid, voxel_size_in_meters, iso_level, bot_y, top_y, generate_collision, density_height_weight, bounds, is_liquid, bevel_tuning);
m_bounds_grid[chunk_idx] = new BoundsEntry
{
m_bounds = bounds,
m_is_visible = false
};
}
}
}
