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https://github.com/Relintai/godot_voxel.git
synced 2024-11-11 20:35:08 +01:00
Added VoxelIsoSurfaceTool::do_heightmap(), untested
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@ -114,12 +114,44 @@ void VoxelIsoSurfaceTool::do_cube(Transform transform, Vector3 extents, Operatio
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for (int y = 0; y < buffer.get_size().y; ++y) {
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Vector3 pos = inv_transform.xform(Vector3(x, y, z));
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do_op(buffer, x, y, z, sdf_cube(pos, extents), op);
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do_op(buffer, x, y, z, sdf_cube(pos, extents) * _iso_scale, op);
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}
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}
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}
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}
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void VoxelIsoSurfaceTool::do_heightmap(Ref<Image> heightmap, Vector3 offset, real_t vertical_scale, Operation op) {
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ERR_FAIL_COND(_buffer.is_null());
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VoxelBuffer &buffer = **_buffer;
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ERR_FAIL_COND(heightmap.is_null());
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Image &im = **heightmap;
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offset += _offset;
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im.lock();
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for (int z = 0; z < buffer.get_size().z; ++z) {
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for (int x = 0; x < buffer.get_size().x; ++x) {
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int px = int(Math::fmod(x + offset.x, im.get_width()));
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int py = int(Math::fmod(z + offset.z, im.get_height()));
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float h = im.get_pixel(px, py).r * vertical_scale + offset.y;
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for (int y = 0; y < buffer.get_size().y; ++y) {
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// Not a true distance to heightmap, but might be enough
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float d = (y - h) * _iso_scale;
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do_op(buffer, x, y, z, d, op);
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}
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}
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}
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im.unlock();
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}
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void VoxelIsoSurfaceTool::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_buffer", "voxel_buffer"), &VoxelIsoSurfaceTool::set_buffer);
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@ -134,6 +166,7 @@ void VoxelIsoSurfaceTool::_bind_methods() {
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ClassDB::bind_method(D_METHOD("do_sphere", "center", "radius", "op"), &VoxelIsoSurfaceTool::do_sphere, DEFVAL(OP_ADD));
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ClassDB::bind_method(D_METHOD("do_plane", "plane", "op"), &VoxelIsoSurfaceTool::do_plane, DEFVAL(OP_ADD));
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ClassDB::bind_method(D_METHOD("do_cube", "transform", "extents", "op"), &VoxelIsoSurfaceTool::do_cube, DEFVAL(OP_ADD));
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ClassDB::bind_method(D_METHOD("do_heightmap", "heightmap", "offset", "vertical_scale", "op"), &VoxelIsoSurfaceTool::do_cube, DEFVAL(OP_ADD));
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BIND_ENUM_CONSTANT(OP_ADD);
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BIND_ENUM_CONSTANT(OP_SUBTRACT);
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@ -2,6 +2,7 @@
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#define VOXEL_ISOSURFACE_TOOL_H
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#include "voxel_buffer.h"
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#include <core/image.h>
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class VoxelIsoSurfaceTool : public Reference {
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GDCLASS(VoxelIsoSurfaceTool, Reference)
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@ -26,6 +27,7 @@ public:
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void do_sphere(Vector3 center, real_t radius, Operation op);
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void do_plane(Plane plane, Operation op);
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void do_cube(Transform transform, Vector3 extents, Operation op);
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void do_heightmap(Ref<Image> heightmap, Vector3 offset, real_t vertical_scale, Operation op);
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protected:
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static void _bind_methods();
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