Differential D16826 Diff 59819 source/blender/draw/engines/workbench/shaders/workbench_shadow_visibility_comp.glsl

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source/blender/draw/engines/workbench/shaders/workbench_shadow_visibility_comp.glsl

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				#pragma BLENDER_REQUIRE(common_math_lib.glsl)
				#pragma BLENDER_REQUIRE(common_intersect_lib.glsl)

				shared uint shared_result;

				#ifdef DYNAMIC_PASS_SELECTION
				void set_visibility(bool pass, bool fail)
				{
				if (!pass) {
				atomicAnd(pass_visibility_buf[gl_WorkGroupID.x], ~(1u << gl_LocalInvocationID.x));
				}
				if (!fail) {
				atomicAnd(fail_visibility_buf[gl_WorkGroupID.x], ~(1u << gl_LocalInvocationID.x));
				}
				}
				#else
				void set_visibility(bool visibility)
				{
				if (!visibility) {
				atomicAnd(visibility_buf[gl_WorkGroupID.x], ~(1u << gl_LocalInvocationID.x));
				}
				}
				#endif

				bool is_visible(IsectBox box)
				{
				for (int i_plane = 0; i_plane < extruded_frustum.planes_count; i_plane++) {
				vec4 plane = extruded_frustum.planes[i_plane];
				bool separating_axis = true;
				for (int i_corner = 0; i_corner < 8; i_corner++) {
				float signed_distance = dot(box.corners[i_corner], plane.xyz) - plane.w;
				if (signed_distance <= 0) {
				separating_axis = false;
				break;
				}
				}
				if (separating_axis) {
				return false;
				}
				}
				return true;
				}

				bool intersects_near_plane(IsectBox box)
				{
				vec4 near_plane = drw_view_culling.planes[4];
				bool on_positive_side = false;
				bool on_negative_side = false;

				for (int i_corner = 0; i_corner < 8; i_corner++) {
				for (int i_displace = 0; i_displace < 2; i_displace++) {
				vec3 corner = box.corners[i_corner] + (shadow_direction * 1e5f * i_displace);
				float signed_distance = dot(corner, -near_plane.xyz) - near_plane.w;
				if (signed_distance <= 0) {
				on_negative_side = true;
				}
				else {
				on_positive_side = true;
				}
				if (on_negative_side && on_positive_side) {
				return true;
				}
				}
				}

				return false;
				}

				void main()
				{
				if (gl_GlobalInvocationID.x >= resource_len) {
				return;
				}

				ObjectBounds bounds = bounds_buf[gl_GlobalInvocationID.x];
				IsectBox box = isect_data_setup(bounds.bounding_corners[0].xyz,
				bounds.bounding_corners[1].xyz,
				bounds.bounding_corners[2].xyz,
				bounds.bounding_corners[3].xyz);

				#ifdef DYNAMIC_PASS_SELECTION
				if (is_visible(box)) {
				bool use_fail_pass = force_fail_method \|\| intersects_near_plane(box);
				set_visibility(!use_fail_pass, use_fail_pass);
				}
				else {
				set_visibility(false, false);
				}
				#else
				set_visibility(is_visible(box));
				#endif
				}