From cab09dc4aec745a2be94172645c9624c7b0126ff Mon Sep 17 00:00:00 2001 From: mrieggeramzn <61609885+mrieggeramzn@users.noreply.github.com> Date: Tue, 4 Jan 2022 08:27:43 -0800 Subject: [PATCH] Adding better decal culling (#6519) * Adding better decal culling Signed-off-by: mrieggeramzn * removing accidental commit Signed-off-by: mrieggeramzn * Breja's suggestion for decal sphere size estimation Signed-off-by: mrieggeramzn * Removing unused variable Signed-off-by: mrieggeramzn --- .../Assets/Shaders/LightCulling/LightCulling.azsl | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/Gems/Atom/Feature/Common/Assets/Shaders/LightCulling/LightCulling.azsl b/Gems/Atom/Feature/Common/Assets/Shaders/LightCulling/LightCulling.azsl index 707ede9868..e806bc7cb7 100644 --- a/Gems/Atom/Feature/Common/Assets/Shaders/LightCulling/LightCulling.azsl +++ b/Gems/Atom/Feature/Common/Assets/Shaders/LightCulling/LightCulling.azsl @@ -368,16 +368,19 @@ void CullDecals(uint groupIndex, TileLightData tileLightData, float3 aabb_center float3 decalPosition = WorldToView_Point(decal.m_position); // just wrapping a bounding sphere around a cube for now to get a minor perf boost. i.e. the sphere radius is sqrt(x*x + y*y + z*z) - // ATOM-4224 - try AABB-AABB and implement depth binning for the decals - float maxHalfSize = max(max(decal.m_halfSize.x, decal.m_halfSize.y), decal.m_halfSize.z); - float boundingSphereRadiusSqr = maxHalfSize * maxHalfSize * 3; + // ATOM-4224 - try AABB-AABB + float boundingSphereRadiusSqr = dot(decal.m_halfSize, decal.m_halfSize); bool potentiallyIntersects = TestSphereVsAabb(decalPosition, boundingSphereRadiusSqr, aabb_center, aabb_extents); + if (potentiallyIntersects) { - // Implement and profile fine-grained light culling testing - // ATOM-3732 - MarkLightAsVisibleInSharedMemory(decalIndex, 0xFFFF); + uint inside = 0; + float2 minmax = ComputePointLightMinMaxZ(sqrt(boundingSphereRadiusSqr), decalPosition); + if (IsObjectInsideTile(tileLightData, minmax, inside)) + { + MarkLightAsVisibleInSharedMemory(decalIndex, inside); + } } } }