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-rw-r--r--servers/visual/rasterizer_rd/shaders/giprobe_sdf.glsl116
1 files changed, 53 insertions, 63 deletions
diff --git a/servers/visual/rasterizer_rd/shaders/giprobe_sdf.glsl b/servers/visual/rasterizer_rd/shaders/giprobe_sdf.glsl
index 02f0f67a15..dd3910f52e 100644
--- a/servers/visual/rasterizer_rd/shaders/giprobe_sdf.glsl
+++ b/servers/visual/rasterizer_rd/shaders/giprobe_sdf.glsl
@@ -1,3 +1,4 @@
+/* clang-format off */
[compute]
#version 450
@@ -5,21 +6,21 @@
VERSION_DEFINES
layout(local_size_x = 4, local_size_y = 4, local_size_z = 4) in;
+/* clang-format on */
#define MAX_DISTANCE 100000
#define NO_CHILDREN 0xFFFFFFFF
-#define GREY_VEC vec3(0.33333,0.33333,0.33333)
+#define GREY_VEC vec3(0.33333, 0.33333, 0.33333)
struct CellChildren {
uint children[8];
};
-layout(set=0,binding=1,std430) buffer CellChildrenBuffer {
- CellChildren data[];
+layout(set = 0, binding = 1, std430) buffer CellChildrenBuffer {
+ CellChildren data[];
} cell_children;
-
struct CellData {
uint position; // xyz 10 bits
uint albedo; //rgb albedo
@@ -27,15 +28,13 @@ struct CellData {
uint normal; //RGB normal encoded
};
-layout(set=0,binding=2,std430) buffer CellDataBuffer {
- CellData data[];
+layout(set = 0, binding = 2, std430) buffer CellDataBuffer {
+ CellData data[];
} cell_data;
-layout (r8ui,set=0,binding=3) uniform restrict writeonly uimage3D sdf_tex;
-
+layout(r8ui, set = 0, binding = 3) uniform restrict writeonly uimage3D sdf_tex;
layout(push_constant, binding = 0, std430) uniform Params {
-
uint offset;
uint end;
uint pad0;
@@ -47,9 +46,9 @@ void main() {
vec3 pos = vec3(gl_GlobalInvocationID);
float closest_dist = 100000.0;
- for(uint i=params.offset;i<params.end;i++) {
- vec3 posu = vec3(uvec3(cell_data.data[i].position&0x7FF,(cell_data.data[i].position>>11)&0x3FF,cell_data.data[i].position>>21));
- float dist = length(pos-posu);
+ for (uint i = params.offset; i < params.end; i++) {
+ vec3 posu = vec3(uvec3(cell_data.data[i].position & 0x7FF, (cell_data.data[i].position >> 11) & 0x3FF, cell_data.data[i].position >> 21));
+ float dist = length(pos - posu);
if (dist < closest_dist) {
closest_dist = dist;
}
@@ -57,17 +56,16 @@ void main() {
uint dist_8;
- if (closest_dist<0.0001) { // same cell
- dist_8=0; //equals to -1
+ if (closest_dist < 0.0001) { // same cell
+ dist_8 = 0; //equals to -1
} else {
- dist_8 = clamp(uint(closest_dist),0,254) + 1; //conservative, 0 is 1, so <1 is considered solid
+ dist_8 = clamp(uint(closest_dist), 0, 254) + 1; //conservative, 0 is 1, so <1 is considered solid
}
- imageStore(sdf_tex,ivec3(gl_GlobalInvocationID),uvec4(dist_8));
+ imageStore(sdf_tex, ivec3(gl_GlobalInvocationID), uvec4(dist_8));
//imageStore(sdf_tex,pos,uvec4(pos*2,0));
}
-
#if 0
layout(push_constant, binding = 0, std430) uniform Params {
@@ -75,10 +73,9 @@ layout(push_constant, binding = 0, std430) uniform Params {
uint stack_size;
} params;
-
float distance_to_aabb(ivec3 pos, ivec3 aabb_pos, ivec3 aabb_size) {
- vec3 delta = vec3(max(ivec3(0),max(aabb_pos - pos, pos - (aabb_pos + aabb_size - ivec3(1)))));
+ vec3 delta = vec3(max(ivec3(0), max(aabb_pos - pos, pos - (aabb_pos + aabb_size - ivec3(1)))));
return length(delta);
}
@@ -86,20 +83,19 @@ void main() {
ivec3 pos = ivec3(gl_GlobalInvocationID);
- uint stack[10]=uint[](0,0,0,0,0,0,0,0,0,0);
- uint stack_indices[10]=uint[](0,0,0,0,0,0,0,0,0,0);
- ivec3 stack_positions[10]=ivec3[](ivec3(0),ivec3(0),ivec3(0),ivec3(0),ivec3(0),ivec3(0),ivec3(0),ivec3(0),ivec3(0),ivec3(0));
-
- const uint cell_orders[8]=uint[](
- 0x11f58d1,
- 0xe2e70a,
- 0xd47463,
- 0xbb829c,
- 0x8d11f5,
- 0x70ae2e,
- 0x463d47,
- 0x29cbb8
- );
+ uint stack[10] = uint[](0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+ uint stack_indices[10] = uint[](0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+ ivec3 stack_positions[10] = ivec3[](ivec3(0), ivec3(0), ivec3(0), ivec3(0), ivec3(0), ivec3(0), ivec3(0), ivec3(0), ivec3(0), ivec3(0));
+
+ const uint cell_orders[8] = uint[](
+ 0x11f58d1,
+ 0xe2e70a,
+ 0xd47463,
+ 0xbb829c,
+ 0x8d11f5,
+ 0x70ae2e,
+ 0x463d47,
+ 0x29cbb8);
bool cell_found = false;
bool cell_found_exact = false;
@@ -107,46 +103,45 @@ void main() {
float closest_distance = MAX_DISTANCE;
int stack_pos = 0;
- while(true) {
+ while (true) {
- uint index = stack_indices[stack_pos]>>24;
+ uint index = stack_indices[stack_pos] >> 24;
if (index == 8) {
//go up
- if (stack_pos==0) {
+ if (stack_pos == 0) {
break; //done going through octree
}
stack_pos--;
continue;
}
- stack_indices[stack_pos] = (stack_indices[stack_pos]&((1<<24)-1))|((index + 1)<<24);
+ stack_indices[stack_pos] = (stack_indices[stack_pos] & ((1 << 24) - 1)) | ((index + 1) << 24);
-
- uint cell_index = (stack_indices[stack_pos]>>(index*3))&0x7;
+ uint cell_index = (stack_indices[stack_pos] >> (index * 3)) & 0x7;
uint child_cell = cell_children.data[stack[stack_pos]].children[cell_index];
if (child_cell == NO_CHILDREN) {
continue;
}
- ivec3 child_cell_size = params.limits >> (stack_pos+1);
+ ivec3 child_cell_size = params.limits >> (stack_pos + 1);
ivec3 child_cell_pos = stack_positions[stack_pos];
- child_cell_pos+=mix(ivec3(0),child_cell_size,bvec3(uvec3(index&1,index&2,index&4)!=uvec3(0)));
+ child_cell_pos += mix(ivec3(0), child_cell_size, bvec3(uvec3(index & 1, index & 2, index & 4) != uvec3(0)));
- bool is_leaf = stack_pos == (params.stack_size-2);
+ bool is_leaf = stack_pos == (params.stack_size - 2);
- if (child_cell_pos==pos && is_leaf) {
+ if (child_cell_pos == pos && is_leaf) {
//we may actually end up in the exact cell.
//if this happens, just abort
- cell_found_exact=true;
+ cell_found_exact = true;
break;
}
if (cell_found) {
//discard by distance
- float distance = distance_to_aabb(pos,child_cell_pos,child_cell_size);
+ float distance = distance_to_aabb(pos, child_cell_pos, child_cell_size);
if (distance >= closest_distance) {
continue; //pointless, just test next child
} else if (is_leaf) {
@@ -157,38 +152,33 @@ void main() {
}
} else if (is_leaf) {
//first solid cell we find, save and continue
- closest_distance = distance_to_aabb(pos,child_cell_pos,child_cell_size);
+ closest_distance = distance_to_aabb(pos, child_cell_pos, child_cell_size);
closest_cell_pos = child_cell_pos;
- cell_found=true;
+ cell_found = true;
continue;
}
-
-
-
- bvec3 direction = greaterThan(( pos - ( child_cell_pos + (child_cell_size >>1) ) ) , ivec3(0) );
+ bvec3 direction = greaterThan((pos - (child_cell_pos + (child_cell_size >> 1))), ivec3(0));
uint cell_order = 0;
- cell_order|=mix(0,1,direction.x);
- cell_order|=mix(0,2,direction.y);
- cell_order|=mix(0,4,direction.z);
+ cell_order |= mix(0, 1, direction.x);
+ cell_order |= mix(0, 2, direction.y);
+ cell_order |= mix(0, 4, direction.z);
- stack[stack_pos+1]=child_cell;
- stack_indices[stack_pos+1]=cell_orders[cell_order]; //start counting
- stack_positions[stack_pos+1]=child_cell_pos;
+ stack[stack_pos + 1] = child_cell;
+ stack_indices[stack_pos + 1] = cell_orders[cell_order]; //start counting
+ stack_positions[stack_pos + 1] = child_cell_pos;
stack_pos++; //go up stack
-
}
uint dist_8;
if (cell_found_exact) {
- dist_8=0; //equals to -1
+ dist_8 = 0; //equals to -1
} else {
- float closest_distance = length(vec3(pos-closest_cell_pos));
- dist_8 = clamp(uint(closest_distance),0,254) + 1; //conservative, 0 is 1, so <1 is considered solid
+ float closest_distance = length(vec3(pos - closest_cell_pos));
+ dist_8 = clamp(uint(closest_distance), 0, 254) + 1; //conservative, 0 is 1, so <1 is considered solid
}
- imageStore(sdf_tex,pos,uvec4(dist_8));
-
+ imageStore(sdf_tex, pos, uvec4(dist_8));
}
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 21:22:30 +0000