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cascade shadow fix #115

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This commit is contained in:
Turanszki Janos
2020-05-21 20:32:55 +01:00
parent bfa02e5c08
commit 1831df147c
2 changed files with 11 additions and 5 deletions
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WickedEngine/wiRenderer.cpp
+10 -4
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@@ -2916,23 +2916,29 @@ inline void CreateDirLightShadowCams(const LightComponent& light, CameraComponen
}
// Fit AABB onto bounding sphere:
XMVECTOR vMin = XMVectorAdd(center, XMVectorReplicate(-radius));
XMVECTOR vMax = XMVectorAdd(center, XMVectorReplicate(radius));
XMVECTOR vRadius = XMVectorReplicate(radius);
XMVECTOR vMin = XMVectorSubtract(center, vRadius);
XMVECTOR vMax = XMVectorAdd(center, vRadius);
// Snap cascade to texel grid:
const XMVECTOR extent = XMVectorSubtract(vMax, vMin);
const XMVECTOR texelSize = extent / float(wiRenderer::GetShadowRes2D());
vMin = XMVectorFloor(vMin / texelSize) * texelSize;
vMax = XMVectorFloor(vMax / texelSize) * texelSize;
center = (vMin + vMax) * 0.5f;
XMFLOAT3 _center;
XMFLOAT3 _min;
XMFLOAT3 _max;
XMStoreFloat3(&_center, center);
XMStoreFloat3(&_min, vMin);
XMStoreFloat3(&_max, vMax);
// Extrude bounds to avoid early shadow clipping:
_min.z = std::min(_min.z, -farPlane * 0.5f);
_max.z = std::max(_max.z, farPlane * 0.5f);
float ext = abs(_center.z - _min.z);
ext = std::max(ext, farPlane * 0.5f);
_min.z = _center.z - ext;
_max.z = _center.z + ext;
const XMMATRIX lightProjection = XMMatrixOrthographicOffCenterLH(_min.x, _max.x, _min.y, _max.y, _max.z, _min.z); // notice reversed Z!
WickedEngine/wiVersion.cpp
+1 -1
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@@ -9,7 +9,7 @@ namespace wiVersion
// minor features, major updates
const int minor = 42;
// minor bug fixes, alterations, refactors, updates
const int revision = 2;
const int revision = 3;
const std::string version_string = std::to_string(major) + "." + std::to_string(minor) + "." + std::to_string(revision);