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Fix offset between contour and source shape

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This commit is contained in:
Marc Gilleron 2019-04-20 22:38:09 +01:00
parent d74201c93f
commit d52fecaa79
1 changed files with 6 additions and 7 deletions
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13
dmc/voxel_mesher_dmc.cpp
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@ -16,7 +16,7 @@ enum Channels {
CHANNEL_GRADIENT_Z CHANNEL_GRADIENT_Z
}; };
const int CHUNK_SIZE = 16; const int CHUNK_SIZE = 8;
const float ISO_LEVEL = 0.0; const float ISO_LEVEL = 0.0;
struct HermiteValue { struct HermiteValue {
@ -286,6 +286,10 @@ bool can_split(OctreeNode *node, const VoxelBuffer &voxels, float geometric_erro
return false; return false;
} }
inline Vector3 get_center(const OctreeNode *node) {
return node->origin.to_vec3() + 0.5 * Vector3(node->size, node->size, node->size);
}
// TODO There is an issue with this: // TODO There is an issue with this:
// the split policy assumes we have a real distance field, but this is not really the case. // the split policy assumes we have a real distance field, but this is not really the case.
// For example, if the volume is empty and a player places a tiny sphere in the middle, // For example, if the volume is empty and a player places a tiny sphere in the middle,
@ -303,8 +307,7 @@ void generate_octree_top_down(OctreeNode *node, const VoxelBuffer &voxels, float
} else { } else {
Vector3i center = node->origin + Vector3i(node->size / 2); node->center_value = get_interpolated_hermite_value(voxels, get_center(node));
node->center_value = get_hermite_value(voxels, center.x, center.y, center.z);
} }
} }
@ -492,10 +495,6 @@ inline bool is_border_front(const OctreeNode *node) {
return node->origin.z + node->size == CHUNK_SIZE; return node->origin.z + node->size == CHUNK_SIZE;
} }
inline Vector3 get_center(const OctreeNode *node) {
return node->origin.to_vec3() + 0.5 * Vector3(node->size, node->size, node->size);
}
inline Vector3 get_center_back(const OctreeNode *node) { inline Vector3 get_center_back(const OctreeNode *node) {
Vector3 p = node->origin.to_vec3(); Vector3 p = node->origin.to_vec3();
p.x += node->size * 0.5; p.x += node->size * 0.5;