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Determined volume coordinates direction

This commit is contained in:
Martin Opat 2025-01-11 10:59:08 +01:00
parent 6f2ed9e4df
commit 417913af2b
1 changed files with 0 additions and 59 deletions
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59
src/illumination/Raycaster.cu
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@ -14,30 +14,6 @@
// TODO: Probbably move this transfer function business into a different file // TODO: Probbably move this transfer function business into a different file
// Samples the voxel nearest to the given coordinates. TODO: Can be re-used in other places so move // Samples the voxel nearest to the given coordinates. TODO: Can be re-used in other places so move
__device__ float sampleVolumeNearest(float* volumeData, const int volW, const int volH, const int volD, int vx, int vy, int vz) { __device__ float sampleVolumeNearest(float* volumeData, const int volW, const int volH, const int volD, int vx, int vy, int vz) {
// TODO: I actually do not know which screen coordinates corresponds to which volume coordinates ... so let's try all options
// x <-> width, y <-> height, z <-> depth
// if (vx < 0) vx = 0;
// if (vy < 0) vy = 0;
// if (vz < 0) vz = 0;
// if (vx >= volW) vx = volW - 1;
// if (vy >= volH) vy = volH - 1;
// if (vz >= volD) vz = volD - 1;
// int idx = vz * volW * volH + vy * volD + vx;
// return volumeData[idx];
// x <-> width, y <-> depth, z <-> height
// if (vx < 0) vx = 0;
// if (vy < 0) vy = 0;
// if (vz < 0) vz = 0;
// if (vx >= volW) vx = volW - 1;
// if (vy >= volH) vy = volH - 1;
// if (vz >= volD) vz = volD - 1;
// int idx = vy * volW * volD + vz * volW + vx;
// return volumeData[idx];
// x <-> height, y <-> width, z <-> depth <--- So far this is the best one // x <-> height, y <-> width, z <-> depth <--- So far this is the best one
if (vx < 0) vx = 0; if (vx < 0) vx = 0;
if (vy < 0) vy = 0; if (vy < 0) vy = 0;
@ -48,41 +24,6 @@ __device__ float sampleVolumeNearest(float* volumeData, const int volW, const in
int idx = vz * volW * volH + vx * volW + vy; int idx = vz * volW * volH + vx * volW + vy;
return volumeData[idx]; return volumeData[idx];
// x <-> height, y <-> depth, z <-> width
// if (vx < 0) vx = 0;
// if (vy < 0) vy = 0;
// if (vz < 0) vz = 0;
// if (vx >= volH) vx = volH - 1;
// if (vy >= volD) vy = volD - 1;
// if (vz >= volW) vz = volW - 1;
// int idx = vy * volW * volH + vz * volW + vx;
// return volumeData[idx];
// x <-> depth, y <-> width, z <-> height
// if (vx < 0) vx = 0;
// if (vy < 0) vy = 0;
// if (vz < 0) vz = 0;
// if (vx >= volD) vx = volD - 1;
// if (vy >= volW) vy = volW - 1;
// if (vz >= volH) vz = volH - 1;
// int idx = vz * volD * volW + vx * volW + vy;
// return volumeData[idx];
// x <-> depth, y <-> height, z <-> width
// if (vx < 0) vx = 0;
// if (vy < 0) vy = 0;
// if (vz < 0) vz = 0;
// if (vx >= volD) vx = volD - 1;
// if (vy >= volH) vy = volH - 1;
// if (vz >= volW) vz = volW - 1;
// int idx = vy * volD * volW + vz * volD + vx;
// return volumeData[idx];
} }
// tri-linear interpolation - ready if necessary (but no visible improvement for full volume) // tri-linear interpolation - ready if necessary (but no visible improvement for full volume)