mitchellhansen/voxel-raycaster
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Have some real bad lock ups when the oct is semi full

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mitchellhansen
2018-03-01 21:54:16 -08:00
parent 6650eb784d
commit 8f822e14f7
3 changed files with 34 additions and 22 deletions
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42
kernels/ray_caster_kernel.cl
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@@ -302,7 +302,7 @@ __kernel void raycaster(
intersection_t -= delta_t * convert_float3(isless(intersection_t, 0));
int distance_traveled = 0;
int max_distance = 700;
int max_distance = 100;
uint bounce_count = 0;
int3 face_mask = { 0, 0, 0 };
int voxel_data = 0;
@@ -433,7 +433,7 @@ __kernel void raycaster(
is_valid = (traversal_state.parent_stack[traversal_state.parent_stack_position] >> 16) & mask_8[mask_index];
failsafe++;
if (failsafe > 10000)
if (failsafe > 20)
break;
}
@@ -507,30 +507,32 @@ __kernel void raycaster(
is_valid = (traversal_state.parent_stack[traversal_state.parent_stack_position] >> 16) & mask_8[mask_index];
failsafe++;
if (failsafe > 100)
if (failsafe > 20)
break;
}
intersection_t += delta_t * jump_power * fabs(convert_float3(face_mask.xyz));
// intersection_t += delta_t * jump_power * fabs(convert_float3(face_mask.xyz));
//
// //int3 other_faces = face_mask == 1 ? 1 : -1;
// int3 other_faces = select((int3)(1,1,1), (int3)(0,0,0), (int3)(face_mask == 1));
// //int3 added_diff = last_oct_pos + prev_jump_power - traversal_state.oct_pos;
//
// uint3 multiplier = (1, 1, 1);//convert_uint3(abs(traversal_state.oct_pos - last_oct_pos) * (1.0f/prev_jump_power));
//
// last_oct_pos = traversal_state.oct_pos;
//
// intersection_t -= delta_t * prev_jump_power * convert_float3(other_faces.xyz);
// intersection_t += delta_t * convert_float3(multiplier) * jump_power * fabs(convert_float3(other_faces.xyz));
//int3 other_faces = face_mask == 1 ? 1 : -1;
int3 other_faces = select((int3)(1,1,1), (int3)(0,0,0), (int3)(face_mask == 1));
//int3 added_diff = last_oct_pos + prev_jump_power - traversal_state.oct_pos;
uint3 multiplier = abs(traversal_state.oct_pos - last_oct_pos) / prev_jump_power ;
last_oct_pos = traversal_state.oct_pos;
intersection_t -= delta_t * prev_jump_power * convert_float3(other_faces.xyz);
intersection_t += delta_t * convert_float3(multiplier) * jump_power * fabs(convert_float3(other_faces.xyz));
// // Test for out of bounds contions, add fog
// if (traversal_state.scale == 1){
// //voxel.xyz -= voxel_step.xyz * face_mask.xyz;
// color_accumulator = mix((1.0f, 1.0f, 1.0f, 1.0f), (1.0f, 1.0f, 1.0f, 1.0f), 1.0f - max(distance_traveled / 700.0f, 0.0f));
// color_accumulator.w *= 4;
// break;
// }
voxel_data = map[voxel.x + (*map_dim).x * (voxel.y + (*map_dim).z * (voxel.z))];
if (traversal_state.scale == 1 && is_valid){
//voxel.xyz -= voxel_step.xyz * face_mask.xyz;
color_accumulator = mix((1.0f, 1.0f, 1.0f, 1.0f), (1.0f, 1.0f, 1.0f, 1.0f), 1.0f - max(distance_traveled / 700.0f, 0.0f));
color_accumulator.w *= 4;
break;
}
//voxel_data = map[voxel.x + (*map_dim).x * (voxel.y + (*map_dim).z * (voxel.z))];
} else {
// Fancy no branch version of the logic step
face_mask = intersection_t.xyz <= min(intersection_t.yzx, intersection_t.zxy);

2
src/Application.cpp
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@@ -51,7 +51,7 @@ bool Application::init_clcaster() {
raycaster->assign_map(map);
camera = std::make_shared<Camera>(
sf::Vector3f(3.5f, 3.5f, 3.5f), // Starting position
sf::Vector3f(30.5f, 30.5f, 30.5f), // Starting position
sf::Vector2f(1.57f, 0.0f), // Direction
window.get()
);

12
src/map/ArrayMap.cpp
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@@ -16,7 +16,17 @@ ArrayMap::ArrayMap(sf::Vector3i dimensions) {
for (int x = 0; x < dimensions.x; x++) {
for (int y = 0; y < dimensions.y; y++) {
setVoxel(sf::Vector3i(x, y, 0), 5);
for (int z = 0; z < 2; z++) {
setVoxel(sf::Vector3i(x, y, z), 5);
}
}
}
for (int x = 0; x < dimensions.x/2-1; x++) {
for (int y = 0; y < dimensions.y/2-1; y++) {
for (int z = 0; z < dimensions.z/2-1; z++) {
setVoxel(sf::Vector3i(x, y, z), 5);
}
}
}
}