diff options
Diffstat (limited to 'src/Runtime/ogl-runtime/src/runtimerender/Qt3DSRenderClippingFrustum.h')
| m--------- | src/Runtime/ogl-runtime | 0 | ||||
| -rw-r--r-- | src/Runtime/ogl-runtime/src/runtimerender/Qt3DSRenderClippingFrustum.h | 161 |
2 files changed, 0 insertions, 161 deletions
diff --git a/src/Runtime/ogl-runtime b/src/Runtime/ogl-runtime new file mode 160000 +Subproject 2025912174c4cf99270b7439ec3b021e1d089ae diff --git a/src/Runtime/ogl-runtime/src/runtimerender/Qt3DSRenderClippingFrustum.h b/src/Runtime/ogl-runtime/src/runtimerender/Qt3DSRenderClippingFrustum.h deleted file mode 100644 index b788ad24..00000000 --- a/src/Runtime/ogl-runtime/src/runtimerender/Qt3DSRenderClippingFrustum.h +++ /dev/null @@ -1,161 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2008-2012 NVIDIA Corporation. -** Copyright (C) 2017 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of Qt 3D Studio. -** -** $QT_BEGIN_LICENSE:GPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3 or (at your option) any later version -** approved by the KDE Free Qt Foundation. The licenses are as published by -** the Free Software Foundation and appearing in the file LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ -#pragma once -#ifndef QT3DS_RENDER_CLIPPING_PLANE_H -#define QT3DS_RENDER_CLIPPING_PLANE_H -#include "Qt3DSRender.h" -#include "foundation/Qt3DSPlane.h" -#include "foundation/Qt3DSFlags.h" -#include "foundation/Qt3DSBounds3.h" - -namespace qt3ds { -namespace render { - - struct BoxEdgeFlagValues - { - enum Enum { - xMax = 1, - yMax = 1 << 1, - zMax = 1 << 2, - }; - }; - - typedef NVFlags<BoxEdgeFlagValues::Enum, QT3DSU8> TRenderBoxEdge; - - // For an intesection test, we only need two points of the bounding box. - // There will be a point nearest to the plane, and a point furthest from the plane. - // We can derive these points from the plane normal equation. - struct SPlaneBoxEdge - { - TRenderBoxEdge lowerEdge; - TRenderBoxEdge upperEdge; - }; - - struct SClipPlane - { - QT3DSVec3 normal; - QT3DSF32 d; - SPlaneBoxEdge mEdges; - - // For intersection tests, we only need to know if the numerator is greater than, equal to, - // or less than zero. - inline QT3DSF32 distance(const QT3DSVec3 &pt) const { return normal.dot(pt) + d; } - - // Only works if p0 is above the line and p1 is below the plane. - inline QT3DSVec3 intersectWithLine(const QT3DSVec3 &p0, const QT3DSVec3 &p1) const - { - QT3DSVec3 dir = p1 - p0; - QT3DSVec3 pointOnPlane = normal * (-d); -#ifdef _DEBUG - QT3DSF32 distanceOfPoint = distance(pointOnPlane); - QT3DS_ASSERT(NVAbs(distanceOfPoint) < 0.0001f); -#endif - QT3DSF32 numerator = (pointOnPlane - p0).dot(normal); - QT3DSF32 denominator = dir.dot(normal); - - QT3DS_ASSERT(NVAbs(denominator) > .0001f); - QT3DSF32 t = (numerator / denominator); - QT3DSVec3 retval = p0 + dir * t; -#ifdef _DEBUG - QT3DSF32 retvalDistance = distance(retval); - QT3DS_ASSERT(NVAbs(retvalDistance) < .0001f); -#endif - return retval; - } - - static inline QT3DSVec3 corner(const NVBounds3 &bounds, TRenderBoxEdge edge) - { - return QT3DSVec3((edge & BoxEdgeFlagValues::xMax) ? bounds.maximum[0] : bounds.minimum[0], - (edge & BoxEdgeFlagValues::yMax) ? bounds.maximum[1] : bounds.minimum[1], - (edge & BoxEdgeFlagValues::zMax) ? bounds.maximum[2] : bounds.minimum[2]); - } - - // dividing the distance numerator - - // I got this code from osg, but it is in graphics gems - // as well. - /** intersection test between plane and bounding sphere. - return 1 if the bs is completely above plane, - return 0 if the bs intersects the plane, - return -1 if the bs is completely below the plane.*/ - inline int intersect(const NVBounds3 &bounds) const - { - // if lowest point above plane than all above. - if (distance(corner(bounds, mEdges.lowerEdge)) > 0.0f) - return 1; - - // if highest point is below plane then all below. - if (distance(corner(bounds, mEdges.upperEdge)) < 0.0f) - return -1; - - // d_lower<=0.0f && d_upper>=0.0f - // therefore must be crossing plane. - return 0; - } - - inline void calculateBBoxEdges() - { - mEdges.upperEdge = TRenderBoxEdge( - static_cast<QT3DSU8>((normal[0] >= 0.0f ? BoxEdgeFlagValues::xMax : 0) - | (normal[1] >= 0.0f ? BoxEdgeFlagValues::yMax : 0) - | (normal[2] >= 0.0f ? BoxEdgeFlagValues::zMax : 0))); - - mEdges.lowerEdge = TRenderBoxEdge((~((QT3DSU8)mEdges.upperEdge)) & 7); - } - }; - - struct SClippingFrustum - { - SClipPlane mPlanes[6]; - - SClippingFrustum() {} - - SClippingFrustum(const QT3DSMat44 &modelviewprojection, SClipPlane nearPlane); - - bool intersectsWith(const NVBounds3 &bounds) const - { - for (QT3DSU32 idx = 0; idx < 6; ++idx) - if (mPlanes[idx].intersect(bounds) < 0) - return false; - return true; - } - - bool intersectsWith(const QT3DSVec3 &point, QT3DSF32 radius = 0.0f) const - { - for (QT3DSU32 idx = 0; idx < 6; ++idx) - if (mPlanes[idx].distance(point) < radius) - return false; - return true; - } - }; -} -} - -#endif
\ No newline at end of file |