bloboland
annotate src/volume.inl @ 3:a39c301cdcce
terrain raytracing pretty much done
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Sun, 16 Dec 2012 14:24:16 +0200 |
| parents | |
| children |
| rev | line source |
|---|---|
| nuclear@1 | 1 Volume::Volume(int xsz, int ysz, int zsz) |
| nuclear@1 | 2 { |
| nuclear@1 | 3 this->xsz = xsz; |
| nuclear@1 | 4 this->ysz = ysz; |
| nuclear@1 | 5 this->zsz = zsz; |
| nuclear@1 | 6 slice_size = xsz * ysz; |
| nuclear@1 | 7 |
| nuclear@1 | 8 voxels = new Vector4[xsz * ysz * zsz]; |
| nuclear@1 | 9 |
| nuclear@1 | 10 // precalculate slice start pointers, cause why not... |
| nuclear@1 | 11 slices = new Vector4*[zsz]; |
| nuclear@1 | 12 for(int i=0; i<zsz; i++) { |
| nuclear@1 | 13 slices[i] = voxels + i * slice_size; |
| nuclear@1 | 14 } |
| nuclear@1 | 15 } |
| nuclear@1 | 16 |
| nuclear@1 | 17 Volume::~Volume() |
| nuclear@1 | 18 { |
| nuclear@1 | 19 delete [] voxels; |
| nuclear@1 | 20 } |
| nuclear@1 | 21 |
| nuclear@1 | 22 int Volume::get_size(int idx) const |
| nuclear@1 | 23 { |
| nuclear@1 | 24 switch(idx) { |
| nuclear@1 | 25 case 0: |
| nuclear@1 | 26 return xsz; |
| nuclear@1 | 27 case 1: |
| nuclear@1 | 28 return ysz; |
| nuclear@1 | 29 case 2: |
| nuclear@1 | 30 return zsz; |
| nuclear@1 | 31 default: |
| nuclear@1 | 32 break; |
| nuclear@1 | 33 } |
| nuclear@1 | 34 return xsz * ysz * zsz; |
| nuclear@1 | 35 } |
| nuclear@1 | 36 |
| nuclear@1 | 37 void Volume::set_voxel(int x, int y, int z, const Vector4 &val) |
| nuclear@1 | 38 { |
| nuclear@1 | 39 slices[z][y * xsz + x] = val; |
| nuclear@1 | 40 } |
| nuclear@1 | 41 |
| nuclear@1 | 42 void Volume::set_voxel_color(int x, int y, int z, const Vector3 &col) |
| nuclear@1 | 43 { |
| nuclear@1 | 44 Vector4 *ptr = slices[z] + y * xsz + x; |
| nuclear@1 | 45 ptr->x = col.x; |
| nuclear@1 | 46 ptr->y = col.y; |
| nuclear@1 | 47 ptr->z = col.z; |
| nuclear@1 | 48 } |
| nuclear@1 | 49 |
| nuclear@1 | 50 void Volume::set_voxel_alpha(int x, int y, int z, float alpha) |
| nuclear@1 | 51 { |
| nuclear@1 | 52 slices[z][y * xsz + x].w = alpha; |
| nuclear@1 | 53 } |
| nuclear@1 | 54 |
| nuclear@1 | 55 |
| nuclear@1 | 56 const Vector4 &Volume::get_voxel(int x, int y, int z) const |
| nuclear@1 | 57 { |
| nuclear@1 | 58 return slices[z][y * xsz + x]; |
| nuclear@1 | 59 } |
| nuclear@1 | 60 |
| nuclear@1 | 61 const Vector3 Volume::get_voxel_color(int x, int y, int z) const |
| nuclear@1 | 62 { |
| nuclear@1 | 63 Vector4 *ptr = slices[z] + y * xsz + x; |
| nuclear@1 | 64 return Vector3(ptr->x, ptr->y, ptr->z); |
| nuclear@1 | 65 } |
| nuclear@1 | 66 |
| nuclear@1 | 67 float Volume::get_voxel_alpha(int x, int y, int z) const |
| nuclear@1 | 68 { |
| nuclear@1 | 69 return slices[z][y * xsz + x].w; |
| nuclear@1 | 70 } |
| nuclear@1 | 71 |
| nuclear@1 | 72 |
| nuclear@1 | 73 Vector4 &Volume::operator [](int idx) |
| nuclear@1 | 74 { |
| nuclear@1 | 75 return voxels[idx]; |
| nuclear@1 | 76 } |
| nuclear@1 | 77 |
| nuclear@1 | 78 const Vector4 &Volume::operator [](int idx) const |
| nuclear@1 | 79 { |
| nuclear@1 | 80 return voxels[idx]; |
| nuclear@1 | 81 } |
| nuclear@1 | 82 |
| nuclear@1 | 83 |
| nuclear@1 | 84 const Vector4 *Volume::get_data_ptr() const |
| nuclear@1 | 85 { |
| nuclear@1 | 86 return voxels; |
| nuclear@1 | 87 } |
| nuclear@1 | 88 |