fe213f80a4
This is the first step of moving the create infos back inside shader sources. All info files are now treated as source files. However, they are not considered in the include tree yet. This will come in another following PR. Each shader source file now generate a `.info` file containing only the create info declarations. This renames all info files so that they do not conflict with their previous versions that were copied (non-generated). Pull Request: https://projects.blender.org/blender/blender/pulls/146676
72 lines
2.2 KiB
GLSL
72 lines
2.2 KiB
GLSL
/* SPDX-FileCopyrightText: 2022-2023 Blender Authors
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
|
|
/**
|
|
* Compute visibility of each resource bounds for a given view.
|
|
*/
|
|
/* TODO(fclem): This could be augmented by a 2 pass occlusion culling system. */
|
|
|
|
#include "draw_view_infos.hh"
|
|
|
|
#include "draw_intersect_lib.glsl"
|
|
|
|
COMPUTE_SHADER_CREATE_INFO(draw_visibility_compute)
|
|
|
|
void mask_visibility_bit(uint view_id)
|
|
{
|
|
if (view_len > 1) {
|
|
uint index = gl_GlobalInvocationID.x * uint(visibility_word_per_draw) + (view_id / 32u);
|
|
visibility_buf[index] &= ~(1u << view_id);
|
|
}
|
|
else {
|
|
atomicAnd(visibility_buf[gl_WorkGroupID.x], ~(1u << gl_LocalInvocationID.x));
|
|
}
|
|
}
|
|
|
|
void main()
|
|
{
|
|
if (int(gl_GlobalInvocationID.x) >= resource_len) {
|
|
return;
|
|
}
|
|
|
|
ObjectBounds bounds = bounds_buf[gl_GlobalInvocationID.x];
|
|
|
|
if (drw_bounds_are_valid(bounds)) {
|
|
IsectBox box = isect_box_setup(bounds.bounding_corners[0].xyz,
|
|
bounds.bounding_corners[1].xyz,
|
|
bounds.bounding_corners[2].xyz,
|
|
bounds.bounding_corners[3].xyz);
|
|
Sphere bounding_sphere = shape_sphere(bounds.bounding_sphere.xyz, bounds.bounding_sphere.w);
|
|
Sphere inscribed_sphere = shape_sphere(bounds.bounding_sphere.xyz,
|
|
bounds._inner_sphere_radius);
|
|
|
|
for (uint view_id = 0u; view_id < uint(view_len); view_id++) {
|
|
if (drw_view_culling(view_id).bound_sphere.w == -1.0f) {
|
|
/* View disabled. */
|
|
mask_visibility_bit(view_id);
|
|
}
|
|
else if (intersect_view(inscribed_sphere, view_id) == true) {
|
|
/* Visible. */
|
|
}
|
|
else if (intersect_view(bounding_sphere, view_id) == false) {
|
|
/* Not visible. */
|
|
mask_visibility_bit(view_id);
|
|
}
|
|
else if (intersect_view(box, view_id) == false) {
|
|
/* Not visible. */
|
|
mask_visibility_bit(view_id);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
/* Culling is disabled, but we need to mask the bits for disabled views. */
|
|
for (uint view_id = 0u; view_id < uint(view_len); view_id++) {
|
|
if (drw_view_culling(view_id).bound_sphere.w == -1.0f) {
|
|
/* View disabled. */
|
|
mask_visibility_bit(view_id);
|
|
}
|
|
}
|
|
}
|
|
}
|