// 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 }; /* 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 RTCIntersectContext* context; struct RTCRayHitN* rayhit; unsigned int N; unsigned int geomID; }; /* Intersection callback function */ typedef void (*RTCIntersectFunctionN)(const struct RTCIntersectFunctionNArguments* args); /* Arguments for RTCOccludedFunctionN */ struct RTCOccludedFunctionNArguments { int* valid; void* geometryUserPtr; unsigned int primID; struct RTCIntersectContext* context; struct RTCRayN* ray; unsigned int N; unsigned int geomID; }; /* Occlusion callback function */ typedef void (*RTCOccludedFunctionN)(const struct RTCOccludedFunctionNArguments* args); /* 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); /* 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); /* Returns the pointer to the data of a buffer. */ RTC_API void* rtcGetGeometryBufferData(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); /* 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_API void rtcFilterIntersection(const struct RTCIntersectFunctionNArguments* args, const struct RTCFilterFunctionNArguments* filterArgs); /* Invokes the occlusion filter from the occlusion callback function. */ RTC_API void rtcFilterOcclusion(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 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); /* 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