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noahbackus
2025-09-16 20:46:46 -04:00
commit 9d30169a8d
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thirdparty/embree/include/embree4/rtcore_geometry.h vendored Normal file
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// Copyright 2009-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include "rtcore_buffer.h"
#include "rtcore_quaternion.h"
RTC_NAMESPACE_BEGIN
/* Opaque scene type */
typedef struct RTCSceneTy* RTCScene;
/* Opaque geometry type */
typedef struct RTCGeometryTy* RTCGeometry;
/* Types of geometries */
enum RTCGeometryType
{
RTC_GEOMETRY_TYPE_TRIANGLE = 0, // triangle mesh
RTC_GEOMETRY_TYPE_QUAD = 1, // quad (triangle pair) mesh
RTC_GEOMETRY_TYPE_GRID = 2, // grid mesh
RTC_GEOMETRY_TYPE_SUBDIVISION = 8, // Catmull-Clark subdivision surface
RTC_GEOMETRY_TYPE_CONE_LINEAR_CURVE = 15, // Cone linear curves - discontinuous at edge boundaries
RTC_GEOMETRY_TYPE_ROUND_LINEAR_CURVE = 16, // Round (rounded cone like) linear curves
RTC_GEOMETRY_TYPE_FLAT_LINEAR_CURVE = 17, // flat (ribbon-like) linear curves
RTC_GEOMETRY_TYPE_ROUND_BEZIER_CURVE = 24, // round (tube-like) Bezier curves
RTC_GEOMETRY_TYPE_FLAT_BEZIER_CURVE = 25, // flat (ribbon-like) Bezier curves
RTC_GEOMETRY_TYPE_NORMAL_ORIENTED_BEZIER_CURVE = 26, // flat normal-oriented Bezier curves
RTC_GEOMETRY_TYPE_ROUND_BSPLINE_CURVE = 32, // round (tube-like) B-spline curves
RTC_GEOMETRY_TYPE_FLAT_BSPLINE_CURVE = 33, // flat (ribbon-like) B-spline curves
RTC_GEOMETRY_TYPE_NORMAL_ORIENTED_BSPLINE_CURVE = 34, // flat normal-oriented B-spline curves
RTC_GEOMETRY_TYPE_ROUND_HERMITE_CURVE = 40, // round (tube-like) Hermite curves
RTC_GEOMETRY_TYPE_FLAT_HERMITE_CURVE = 41, // flat (ribbon-like) Hermite curves
RTC_GEOMETRY_TYPE_NORMAL_ORIENTED_HERMITE_CURVE = 42, // flat normal-oriented Hermite curves
RTC_GEOMETRY_TYPE_SPHERE_POINT = 50,
RTC_GEOMETRY_TYPE_DISC_POINT = 51,
RTC_GEOMETRY_TYPE_ORIENTED_DISC_POINT = 52,
RTC_GEOMETRY_TYPE_ROUND_CATMULL_ROM_CURVE = 58, // round (tube-like) Catmull-Rom curves
RTC_GEOMETRY_TYPE_FLAT_CATMULL_ROM_CURVE = 59, // flat (ribbon-like) Catmull-Rom curves
RTC_GEOMETRY_TYPE_NORMAL_ORIENTED_CATMULL_ROM_CURVE = 60, // flat normal-oriented Catmull-Rom curves
RTC_GEOMETRY_TYPE_USER = 120, // user-defined geometry
RTC_GEOMETRY_TYPE_INSTANCE = 121, // scene instance
RTC_GEOMETRY_TYPE_INSTANCE_ARRAY = 122, // scene instance array
};
/* Interpolation modes for subdivision surfaces */
enum RTCSubdivisionMode
{
RTC_SUBDIVISION_MODE_NO_BOUNDARY = 0,
RTC_SUBDIVISION_MODE_SMOOTH_BOUNDARY = 1,
RTC_SUBDIVISION_MODE_PIN_CORNERS = 2,
RTC_SUBDIVISION_MODE_PIN_BOUNDARY = 3,
RTC_SUBDIVISION_MODE_PIN_ALL = 4,
};
/* Curve segment flags */
enum RTCCurveFlags
{
RTC_CURVE_FLAG_NEIGHBOR_LEFT = (1 << 0), // left segments exists
RTC_CURVE_FLAG_NEIGHBOR_RIGHT = (1 << 1) // right segment exists
};
/* Arguments for RTCBoundsFunction */
struct RTCBoundsFunctionArguments
{
void* geometryUserPtr;
unsigned int primID;
unsigned int timeStep;
struct RTCBounds* bounds_o;
};
/* Bounding callback function */
typedef void (*RTCBoundsFunction)(const struct RTCBoundsFunctionArguments* args);
/* Arguments for RTCIntersectFunctionN */
struct RTCIntersectFunctionNArguments
{
int* valid;
void* geometryUserPtr;
unsigned int primID;
struct RTCRayQueryContext* context;
struct RTCRayHitN* rayhit;
unsigned int N;
unsigned int geomID;
};
/* Arguments for RTCOccludedFunctionN */
struct RTCOccludedFunctionNArguments
{
int* valid;
void* geometryUserPtr;
unsigned int primID;
struct RTCRayQueryContext* context;
struct RTCRayN* ray;
unsigned int N;
unsigned int geomID;
};
/* Arguments for RTCDisplacementFunctionN */
struct RTCDisplacementFunctionNArguments
{
void* geometryUserPtr;
RTCGeometry geometry;
unsigned int primID;
unsigned int timeStep;
const float* u;
const float* v;
const float* Ng_x;
const float* Ng_y;
const float* Ng_z;
float* P_x;
float* P_y;
float* P_z;
unsigned int N;
};
/* Displacement mapping callback function */
typedef void (*RTCDisplacementFunctionN)(const struct RTCDisplacementFunctionNArguments* args);
/* Creates a new geometry of specified type. */
RTC_API RTCGeometry rtcNewGeometry(RTCDevice device, enum RTCGeometryType type);
/* Retains the geometry (increments the reference count). */
RTC_API void rtcRetainGeometry(RTCGeometry geometry);
/* Releases the geometry (decrements the reference count) */
RTC_API void rtcReleaseGeometry(RTCGeometry geometry);
/* Commits the geometry. */
RTC_API void rtcCommitGeometry(RTCGeometry geometry);
/* Enables the geometry. */
RTC_API void rtcEnableGeometry(RTCGeometry geometry);
/* Disables the geometry. */
RTC_API void rtcDisableGeometry(RTCGeometry geometry);
/* Sets the number of motion blur time steps of the geometry. */
RTC_API void rtcSetGeometryTimeStepCount(RTCGeometry geometry, unsigned int timeStepCount);
/* Sets the motion blur time range of the geometry. */
RTC_API void rtcSetGeometryTimeRange(RTCGeometry geometry, float startTime, float endTime);
/* Sets the number of vertex attributes of the geometry. */
RTC_API void rtcSetGeometryVertexAttributeCount(RTCGeometry geometry, unsigned int vertexAttributeCount);
/* Sets the ray mask of the geometry. */
RTC_API void rtcSetGeometryMask(RTCGeometry geometry, unsigned int mask);
/* Sets the build quality of the geometry. */
RTC_API void rtcSetGeometryBuildQuality(RTCGeometry geometry, enum RTCBuildQuality quality);
/* Sets the maximal curve or point radius scale allowed by min-width feature. */
RTC_API void rtcSetGeometryMaxRadiusScale(RTCGeometry geometry, float maxRadiusScale);
/* Sets a geometry buffer. */
RTC_API void rtcSetGeometryBuffer(RTCGeometry geometry, enum RTCBufferType type, unsigned int slot, enum RTCFormat format, RTCBuffer buffer, size_t byteOffset, size_t byteStride, size_t itemCount);
/* Sets a shared geometry buffer. */
RTC_API void rtcSetSharedGeometryBuffer(RTCGeometry geometry, enum RTCBufferType type, unsigned int slot, enum RTCFormat format, const void* ptr, size_t byteOffset, size_t byteStride, size_t itemCount);
/* Sets a shared host/device geometry buffer pair. */
RTC_API void rtcSetSharedGeometryBufferHostDevice(RTCGeometry geometry, enum RTCBufferType bufferType, unsigned int slot, enum RTCFormat format, const void* ptr, const void* dptr, size_t byteOffset, size_t byteStride, size_t itemCount);
/* Creates and sets a new geometry buffer. */
RTC_API void* rtcSetNewGeometryBuffer(RTCGeometry geometry, enum RTCBufferType type, unsigned int slot, enum RTCFormat format, size_t byteStride, size_t itemCount);
/* Creates and sets a new host/device geometry buffer pair. */
RTC_API void rtcSetNewGeometryBufferHostDevice(RTCGeometry geometry, enum RTCBufferType bufferType, unsigned int slot, enum RTCFormat format, size_t byteStride, size_t itemCount, void** ptr, void** dptr);
/* Returns the pointer to the data of a buffer. */
RTC_API void* rtcGetGeometryBufferData(RTCGeometry geometry, enum RTCBufferType type, unsigned int slot);
/* Returns a pointer to the buffer data on the device. Returns the same pointer as
rtcGetGeometryBufferData if the device is no SYCL device or if Embree is executed on a
system with unified memory (e.g., iGPUs). */
RTC_API void* rtcGetGeometryBufferDataDevice(RTCGeometry geometry, enum RTCBufferType type, unsigned int slot);
/* Updates a geometry buffer. */
RTC_API void rtcUpdateGeometryBuffer(RTCGeometry geometry, enum RTCBufferType type, unsigned int slot);
/* Sets the intersection filter callback function of the geometry. */
RTC_API void rtcSetGeometryIntersectFilterFunction(RTCGeometry geometry, RTCFilterFunctionN filter);
/* Sets the occlusion filter callback function of the geometry. */
RTC_API void rtcSetGeometryOccludedFilterFunction(RTCGeometry geometry, RTCFilterFunctionN filter);
/* Enables argument version of intersection or occlusion filter function. */
RTC_API void rtcSetGeometryEnableFilterFunctionFromArguments(RTCGeometry geometry, bool enable);
/* Sets the user-defined data pointer of the geometry. */
RTC_API void rtcSetGeometryUserData(RTCGeometry geometry, void* ptr);
/* Gets the user-defined data pointer of the geometry. */
RTC_API void* rtcGetGeometryUserData(RTCGeometry geometry);
/* Set the point query callback function of a geometry. */
RTC_API void rtcSetGeometryPointQueryFunction(RTCGeometry geometry, RTCPointQueryFunction pointQuery);
/* Sets the number of primitives of a user geometry. */
RTC_API void rtcSetGeometryUserPrimitiveCount(RTCGeometry geometry, unsigned int userPrimitiveCount);
/* Sets the bounding callback function to calculate bounding boxes for user primitives. */
RTC_API void rtcSetGeometryBoundsFunction(RTCGeometry geometry, RTCBoundsFunction bounds, void* userPtr);
/* Set the intersect callback function of a user geometry. */
RTC_API void rtcSetGeometryIntersectFunction(RTCGeometry geometry, RTCIntersectFunctionN intersect);
/* Set the occlusion callback function of a user geometry. */
RTC_API void rtcSetGeometryOccludedFunction(RTCGeometry geometry, RTCOccludedFunctionN occluded);
/* Invokes the intersection filter from the intersection callback function. */
RTC_SYCL_API void rtcInvokeIntersectFilterFromGeometry(const struct RTCIntersectFunctionNArguments* args, const struct RTCFilterFunctionNArguments* filterArgs);
/* Invokes the occlusion filter from the occlusion callback function. */
RTC_SYCL_API void rtcInvokeOccludedFilterFromGeometry(const struct RTCOccludedFunctionNArguments* args, const struct RTCFilterFunctionNArguments* filterArgs);
/* Sets the instanced scene of an instance geometry. */
RTC_API void rtcSetGeometryInstancedScene(RTCGeometry geometry, RTCScene scene);
/* Sets the instanced scenes of an instance array geometry. */
RTC_API void rtcSetGeometryInstancedScenes(RTCGeometry geometry, RTCScene* scenes, size_t numScenes);
/* Sets the transformation of an instance for the specified time step. */
RTC_API void rtcSetGeometryTransform(RTCGeometry geometry, unsigned int timeStep, enum RTCFormat format, const void* xfm);
/* Sets the transformation quaternion of an instance for the specified time step. */
RTC_API void rtcSetGeometryTransformQuaternion(RTCGeometry geometry, unsigned int timeStep, const struct RTCQuaternionDecomposition* qd);
/* Returns the interpolated transformation of an instance for the specified time. */
RTC_API void rtcGetGeometryTransform(RTCGeometry geometry, float time, enum RTCFormat format, void* xfm);
/*
* Returns the interpolated transformation of the instPrimID'th instance of an
* instance array for the specified time. If geometry is an regular instance,
* instPrimID must be 0.
*/
RTC_API void rtcGetGeometryTransformEx(RTCGeometry geometry, unsigned int instPrimID, float time, enum RTCFormat format, void* xfm);
/* Sets the uniform tessellation rate of the geometry. */
RTC_API void rtcSetGeometryTessellationRate(RTCGeometry geometry, float tessellationRate);
/* Sets the number of topologies of a subdivision surface. */
RTC_API void rtcSetGeometryTopologyCount(RTCGeometry geometry, unsigned int topologyCount);
/* Sets the subdivision interpolation mode. */
RTC_API void rtcSetGeometrySubdivisionMode(RTCGeometry geometry, unsigned int topologyID, enum RTCSubdivisionMode mode);
/* Binds a vertex attribute to a topology of the geometry. */
RTC_API void rtcSetGeometryVertexAttributeTopology(RTCGeometry geometry, unsigned int vertexAttributeID, unsigned int topologyID);
/* Sets the displacement callback function of a subdivision surface. */
RTC_API void rtcSetGeometryDisplacementFunction(RTCGeometry geometry, RTCDisplacementFunctionN displacement);
/* Returns the first half edge of a face. */
RTC_API unsigned int rtcGetGeometryFirstHalfEdge(RTCGeometry geometry, unsigned int faceID);
/* Returns the face the half edge belongs to. */
RTC_API unsigned int rtcGetGeometryFace(RTCGeometry geometry, unsigned int edgeID);
/* Returns next half edge. */
RTC_API unsigned int rtcGetGeometryNextHalfEdge(RTCGeometry geometry, unsigned int edgeID);
/* Returns previous half edge. */
RTC_API unsigned int rtcGetGeometryPreviousHalfEdge(RTCGeometry geometry, unsigned int edgeID);
/* Returns opposite half edge. */
RTC_API unsigned int rtcGetGeometryOppositeHalfEdge(RTCGeometry geometry, unsigned int topologyID, unsigned int edgeID);
/* Arguments for rtcInterpolate */
struct RTCInterpolateArguments
{
RTCGeometry geometry;
unsigned int primID;
float u;
float v;
enum RTCBufferType bufferType;
unsigned int bufferSlot;
float* P;
float* dPdu;
float* dPdv;
float* ddPdudu;
float* ddPdvdv;
float* ddPdudv;
unsigned int valueCount;
};
/* Interpolates vertex data to some u/v location and optionally calculates all derivatives. */
RTC_API void rtcInterpolate(const struct RTCInterpolateArguments* args);
/* Interpolates vertex data to some u/v location. */
RTC_FORCEINLINE void rtcInterpolate0(RTCGeometry geometry, unsigned int primID, float u, float v, enum RTCBufferType bufferType, unsigned int bufferSlot, float* P, unsigned int valueCount)
{
struct RTCInterpolateArguments args;
args.geometry = geometry;
args.primID = primID;
args.u = u;
args.v = v;
args.bufferType = bufferType;
args.bufferSlot = bufferSlot;
args.P = P;
args.dPdu = NULL;
args.dPdv = NULL;
args.ddPdudu = NULL;
args.ddPdvdv = NULL;
args.ddPdudv = NULL;
args.valueCount = valueCount;
rtcInterpolate(&args);
}
/* Interpolates vertex data to some u/v location and calculates first order derivatives. */
RTC_FORCEINLINE void rtcInterpolate1(RTCGeometry geometry, unsigned int primID, float u, float v, enum RTCBufferType bufferType, unsigned int bufferSlot,
float* P, float* dPdu, float* dPdv, unsigned int valueCount)
{
struct RTCInterpolateArguments args;
args.geometry = geometry;
args.primID = primID;
args.u = u;
args.v = v;
args.bufferType = bufferType;
args.bufferSlot = bufferSlot;
args.P = P;
args.dPdu = dPdu;
args.dPdv = dPdv;
args.ddPdudu = NULL;
args.ddPdvdv = NULL;
args.ddPdudv = NULL;
args.valueCount = valueCount;
rtcInterpolate(&args);
}
/* Interpolates vertex data to some u/v location and calculates first and second order derivatives. */
RTC_FORCEINLINE void rtcInterpolate2(RTCGeometry geometry, unsigned int primID, float u, float v, enum RTCBufferType bufferType, unsigned int bufferSlot,
float* P, float* dPdu, float* dPdv, float* ddPdudu, float* ddPdvdv, float* ddPdudv, unsigned int valueCount)
{
struct RTCInterpolateArguments args;
args.geometry = geometry;
args.primID = primID;
args.u = u;
args.v = v;
args.bufferType = bufferType;
args.bufferSlot = bufferSlot;
args.P = P;
args.dPdu = dPdu;
args.dPdv = dPdv;
args.ddPdudu = ddPdudu;
args.ddPdvdv = ddPdvdv;
args.ddPdudv = ddPdudv;
args.valueCount = valueCount;
rtcInterpolate(&args);
}
/* Arguments for rtcInterpolateN */
struct RTCInterpolateNArguments
{
RTCGeometry geometry;
const void* valid;
const unsigned int* primIDs;
const float* u;
const float* v;
unsigned int N;
enum RTCBufferType bufferType;
unsigned int bufferSlot;
float* P;
float* dPdu;
float* dPdv;
float* ddPdudu;
float* ddPdvdv;
float* ddPdudv;
unsigned int valueCount;
};
/* Interpolates vertex data to an array of u/v locations. */
RTC_API void rtcInterpolateN(const struct RTCInterpolateNArguments* args);
/* RTCGrid primitive for grid mesh */
struct RTCGrid
{
unsigned int startVertexID;
unsigned int stride;
unsigned short width,height; // max is a 32k x 32k grid
};
RTC_NAMESPACE_END