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Handle LOD in VoxelProviderImage (roughly)

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This commit is contained in:
Marc Gilleron 2019-05-03 23:55:52 +01:00
parent 2b20d90804
commit 7b32426246
1 changed files with 10 additions and 8 deletions
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18
providers/voxel_provider_image.cpp
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@ -43,11 +43,6 @@ inline float get_height_blurred(Image &im, int x, int y) {
void VoxelProviderImage::emerge_block(Ref<VoxelBuffer> p_out_buffer, Vector3i origin_in_voxels, int lod) {
if (lod != 0) {
// TODO Handle higher lods
return;
}
int ox = origin_in_voxels.x;
int oy = origin_in_voxels.y;
int oz = origin_in_voxels.z;
@ -64,19 +59,26 @@ void VoxelProviderImage::emerge_block(Ref<VoxelBuffer> p_out_buffer, Vector3i or
int dirt = 1;
float hbase = 50.0;
float hspan = 200.0;
while (z < bs) {
while (x < bs) {
int lx = x << lod;
int lz = z << lod;
if (_channel == VoxelBuffer::CHANNEL_ISOLEVEL) {
float h = get_height_blurred(image, ox + x, oz + z) * 200.0 - 50;
float h = get_height_blurred(image, ox + lx, oz + lz) * hspan - hbase;
for (int y = 0; y < bs; ++y) {
out_buffer.set_voxel_f((oy + y) - h, x, y, z, _channel);
int ly = y << lod;
out_buffer.set_voxel_f((oy + ly) - h, x, y, z, _channel);
}
} else {
float h = get_height_repeat(image, ox + x, oz + z) * 200.0 - 50;
float h = get_height_repeat(image, ox + lx, oz + lz) * hspan - hbase;
h -= oy;
int ih = int(h);
if (ih > 0) {