mitchellhansen/voxel-raycaster
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256^3 rendering at 15FPS WITHOUT THE TRAVERSAL ALGORITHM! This thing's gonna FLY!

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MitchellHansen
2017-10-12 00:15:56 -07:00
parent b9c1bef7bc
commit 77e283a4ce
4 changed files with 17 additions and 15 deletions
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21
kernels/ray_caster_kernel.cl
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@@ -126,7 +126,7 @@ bool get_oct_vox(
parent_stack[parent_stack_position] = head;
// Set our initial dimension and the position at the corner of the oct to keep track of our position
int dimension = 128;
int dimension = OCTDIM;
int3 quad_position = zeroed_int3;
// While we are not at the required resolution
@@ -192,16 +192,17 @@ bool get_oct_vox(
// Negate it by one as it counts itself
int count = popcount((uchar)(head >> 16) & count_mask_8[mask_index]) - 1;
//bool jumping = false;
//if (far_bit_mask & descriptor_buffer[current_index])
// jumping = true;
// access the far point at which the head points too. Determine it's value, and add
// a count of the valid bits to the index
if (far_bit_mask & octree_descriptor_buffer[current_index]) {
int far_pointer_index = current_index + (head & child_pointer_mask);
current_index = octree_descriptor_buffer[far_pointer_index] + count;
}
// access the element at which head points to and then add the specified number of indices
// to get to the correct child descriptor
current_index = current_index + (head & child_pointer_mask) + count;
//if (jumping == true)
// current_index = descriptor_buffer[current_index];
else {
current_index = current_index + (head & child_pointer_mask) + count;
}
head = octree_descriptor_buffer[current_index];
// Increment the parent stack position and put the new oct node as the parent
@@ -323,7 +324,7 @@ __kernel void raycaster(
break;
}
constant int vox_dim = 128;
constant int vox_dim = OCTDIM;
// If we hit a voxel
if (voxel.x < vox_dim && voxel.y < vox_dim && voxel.z < vox_dim){