383 lines
14 KiB
C++
383 lines
14 KiB
C++
// Copyright 2009-2020 Intel Corporation
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// SPDX-License-Identifier: Apache-2.0
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#pragma once
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#include "rtcore_buffer.h"
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#include "rtcore_quaternion.h"
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RTC_NAMESPACE_BEGIN
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/* Opaque scene type */
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typedef struct RTCSceneTy* RTCScene;
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/* Opaque geometry type */
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typedef struct RTCGeometryTy* RTCGeometry;
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/* Types of geometries */
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enum RTCGeometryType
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{
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RTC_GEOMETRY_TYPE_TRIANGLE = 0, // triangle mesh
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RTC_GEOMETRY_TYPE_QUAD = 1, // quad (triangle pair) mesh
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RTC_GEOMETRY_TYPE_GRID = 2, // grid mesh
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RTC_GEOMETRY_TYPE_SUBDIVISION = 8, // Catmull-Clark subdivision surface
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RTC_GEOMETRY_TYPE_CONE_LINEAR_CURVE = 15, // Cone linear curves - discontinuous at edge boundaries
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RTC_GEOMETRY_TYPE_ROUND_LINEAR_CURVE = 16, // Round (rounded cone like) linear curves
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RTC_GEOMETRY_TYPE_FLAT_LINEAR_CURVE = 17, // flat (ribbon-like) linear curves
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RTC_GEOMETRY_TYPE_ROUND_BEZIER_CURVE = 24, // round (tube-like) Bezier curves
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RTC_GEOMETRY_TYPE_FLAT_BEZIER_CURVE = 25, // flat (ribbon-like) Bezier curves
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RTC_GEOMETRY_TYPE_NORMAL_ORIENTED_BEZIER_CURVE = 26, // flat normal-oriented Bezier curves
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RTC_GEOMETRY_TYPE_ROUND_BSPLINE_CURVE = 32, // round (tube-like) B-spline curves
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RTC_GEOMETRY_TYPE_FLAT_BSPLINE_CURVE = 33, // flat (ribbon-like) B-spline curves
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RTC_GEOMETRY_TYPE_NORMAL_ORIENTED_BSPLINE_CURVE = 34, // flat normal-oriented B-spline curves
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RTC_GEOMETRY_TYPE_ROUND_HERMITE_CURVE = 40, // round (tube-like) Hermite curves
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RTC_GEOMETRY_TYPE_FLAT_HERMITE_CURVE = 41, // flat (ribbon-like) Hermite curves
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RTC_GEOMETRY_TYPE_NORMAL_ORIENTED_HERMITE_CURVE = 42, // flat normal-oriented Hermite curves
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RTC_GEOMETRY_TYPE_SPHERE_POINT = 50,
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RTC_GEOMETRY_TYPE_DISC_POINT = 51,
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RTC_GEOMETRY_TYPE_ORIENTED_DISC_POINT = 52,
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RTC_GEOMETRY_TYPE_ROUND_CATMULL_ROM_CURVE = 58, // round (tube-like) Catmull-Rom curves
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RTC_GEOMETRY_TYPE_FLAT_CATMULL_ROM_CURVE = 59, // flat (ribbon-like) Catmull-Rom curves
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RTC_GEOMETRY_TYPE_NORMAL_ORIENTED_CATMULL_ROM_CURVE = 60, // flat normal-oriented Catmull-Rom curves
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RTC_GEOMETRY_TYPE_USER = 120, // user-defined geometry
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RTC_GEOMETRY_TYPE_INSTANCE = 121 // scene instance
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};
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/* Interpolation modes for subdivision surfaces */
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enum RTCSubdivisionMode
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{
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RTC_SUBDIVISION_MODE_NO_BOUNDARY = 0,
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RTC_SUBDIVISION_MODE_SMOOTH_BOUNDARY = 1,
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RTC_SUBDIVISION_MODE_PIN_CORNERS = 2,
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RTC_SUBDIVISION_MODE_PIN_BOUNDARY = 3,
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RTC_SUBDIVISION_MODE_PIN_ALL = 4,
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};
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/* Curve segment flags */
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enum RTCCurveFlags
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{
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RTC_CURVE_FLAG_NEIGHBOR_LEFT = (1 << 0), // left segments exists
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RTC_CURVE_FLAG_NEIGHBOR_RIGHT = (1 << 1) // right segment exists
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};
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/* Arguments for RTCBoundsFunction */
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struct RTCBoundsFunctionArguments
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{
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void* geometryUserPtr;
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unsigned int primID;
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unsigned int timeStep;
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struct RTCBounds* bounds_o;
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};
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/* Bounding callback function */
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typedef void (*RTCBoundsFunction)(const struct RTCBoundsFunctionArguments* args);
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/* Arguments for RTCIntersectFunctionN */
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struct RTCIntersectFunctionNArguments
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{
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int* valid;
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void* geometryUserPtr;
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unsigned int primID;
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struct RTCIntersectContext* context;
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struct RTCRayHitN* rayhit;
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unsigned int N;
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unsigned int geomID;
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};
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/* Intersection callback function */
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typedef void (*RTCIntersectFunctionN)(const struct RTCIntersectFunctionNArguments* args);
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/* Arguments for RTCOccludedFunctionN */
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struct RTCOccludedFunctionNArguments
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{
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int* valid;
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void* geometryUserPtr;
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unsigned int primID;
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struct RTCIntersectContext* context;
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struct RTCRayN* ray;
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unsigned int N;
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unsigned int geomID;
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};
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/* Occlusion callback function */
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typedef void (*RTCOccludedFunctionN)(const struct RTCOccludedFunctionNArguments* args);
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/* Arguments for RTCDisplacementFunctionN */
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struct RTCDisplacementFunctionNArguments
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{
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void* geometryUserPtr;
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RTCGeometry geometry;
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unsigned int primID;
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unsigned int timeStep;
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const float* u;
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const float* v;
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const float* Ng_x;
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const float* Ng_y;
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const float* Ng_z;
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float* P_x;
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float* P_y;
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float* P_z;
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unsigned int N;
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};
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/* Displacement mapping callback function */
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typedef void (*RTCDisplacementFunctionN)(const struct RTCDisplacementFunctionNArguments* args);
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/* Creates a new geometry of specified type. */
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RTC_API RTCGeometry rtcNewGeometry(RTCDevice device, enum RTCGeometryType type);
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/* Retains the geometry (increments the reference count). */
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RTC_API void rtcRetainGeometry(RTCGeometry geometry);
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/* Releases the geometry (decrements the reference count) */
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RTC_API void rtcReleaseGeometry(RTCGeometry geometry);
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/* Commits the geometry. */
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RTC_API void rtcCommitGeometry(RTCGeometry geometry);
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/* Enables the geometry. */
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RTC_API void rtcEnableGeometry(RTCGeometry geometry);
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/* Disables the geometry. */
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RTC_API void rtcDisableGeometry(RTCGeometry geometry);
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/* Sets the number of motion blur time steps of the geometry. */
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RTC_API void rtcSetGeometryTimeStepCount(RTCGeometry geometry, unsigned int timeStepCount);
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/* Sets the motion blur time range of the geometry. */
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RTC_API void rtcSetGeometryTimeRange(RTCGeometry geometry, float startTime, float endTime);
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/* Sets the number of vertex attributes of the geometry. */
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RTC_API void rtcSetGeometryVertexAttributeCount(RTCGeometry geometry, unsigned int vertexAttributeCount);
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/* Sets the ray mask of the geometry. */
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RTC_API void rtcSetGeometryMask(RTCGeometry geometry, unsigned int mask);
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/* Sets the build quality of the geometry. */
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RTC_API void rtcSetGeometryBuildQuality(RTCGeometry geometry, enum RTCBuildQuality quality);
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/* Sets the maximal curve or point radius scale allowed by min-width feature. */
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RTC_API void rtcSetGeometryMaxRadiusScale(RTCGeometry geometry, float maxRadiusScale);
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/* Sets a geometry buffer. */
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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);
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/* Sets a shared geometry buffer. */
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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);
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/* Creates and sets a new geometry buffer. */
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RTC_API void* rtcSetNewGeometryBuffer(RTCGeometry geometry, enum RTCBufferType type, unsigned int slot, enum RTCFormat format, size_t byteStride, size_t itemCount);
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/* Returns the pointer to the data of a buffer. */
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RTC_API void* rtcGetGeometryBufferData(RTCGeometry geometry, enum RTCBufferType type, unsigned int slot);
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/* Updates a geometry buffer. */
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RTC_API void rtcUpdateGeometryBuffer(RTCGeometry geometry, enum RTCBufferType type, unsigned int slot);
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/* Sets the intersection filter callback function of the geometry. */
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RTC_API void rtcSetGeometryIntersectFilterFunction(RTCGeometry geometry, RTCFilterFunctionN filter);
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/* Sets the occlusion filter callback function of the geometry. */
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RTC_API void rtcSetGeometryOccludedFilterFunction(RTCGeometry geometry, RTCFilterFunctionN filter);
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/* Sets the user-defined data pointer of the geometry. */
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RTC_API void rtcSetGeometryUserData(RTCGeometry geometry, void* ptr);
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/* Gets the user-defined data pointer of the geometry. */
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RTC_API void* rtcGetGeometryUserData(RTCGeometry geometry);
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/* Set the point query callback function of a geometry. */
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RTC_API void rtcSetGeometryPointQueryFunction(RTCGeometry geometry, RTCPointQueryFunction pointQuery);
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/* Sets the number of primitives of a user geometry. */
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RTC_API void rtcSetGeometryUserPrimitiveCount(RTCGeometry geometry, unsigned int userPrimitiveCount);
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/* Sets the bounding callback function to calculate bounding boxes for user primitives. */
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RTC_API void rtcSetGeometryBoundsFunction(RTCGeometry geometry, RTCBoundsFunction bounds, void* userPtr);
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/* Set the intersect callback function of a user geometry. */
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RTC_API void rtcSetGeometryIntersectFunction(RTCGeometry geometry, RTCIntersectFunctionN intersect);
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/* Set the occlusion callback function of a user geometry. */
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RTC_API void rtcSetGeometryOccludedFunction(RTCGeometry geometry, RTCOccludedFunctionN occluded);
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/* Invokes the intersection filter from the intersection callback function. */
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RTC_API void rtcFilterIntersection(const struct RTCIntersectFunctionNArguments* args, const struct RTCFilterFunctionNArguments* filterArgs);
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/* Invokes the occlusion filter from the occlusion callback function. */
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RTC_API void rtcFilterOcclusion(const struct RTCOccludedFunctionNArguments* args, const struct RTCFilterFunctionNArguments* filterArgs);
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/* Sets the instanced scene of an instance geometry. */
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RTC_API void rtcSetGeometryInstancedScene(RTCGeometry geometry, RTCScene scene);
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/* Sets the transformation of an instance for the specified time step. */
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RTC_API void rtcSetGeometryTransform(RTCGeometry geometry, unsigned int timeStep, enum RTCFormat format, const void* xfm);
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/* Sets the transformation quaternion of an instance for the specified time step. */
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RTC_API void rtcSetGeometryTransformQuaternion(RTCGeometry geometry, unsigned int timeStep, const struct RTCQuaternionDecomposition* qd);
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/* Returns the interpolated transformation of an instance for the specified time. */
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RTC_API void rtcGetGeometryTransform(RTCGeometry geometry, float time, enum RTCFormat format, void* xfm);
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/* Sets the uniform tessellation rate of the geometry. */
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RTC_API void rtcSetGeometryTessellationRate(RTCGeometry geometry, float tessellationRate);
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/* Sets the number of topologies of a subdivision surface. */
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RTC_API void rtcSetGeometryTopologyCount(RTCGeometry geometry, unsigned int topologyCount);
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/* Sets the subdivision interpolation mode. */
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RTC_API void rtcSetGeometrySubdivisionMode(RTCGeometry geometry, unsigned int topologyID, enum RTCSubdivisionMode mode);
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/* Binds a vertex attribute to a topology of the geometry. */
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RTC_API void rtcSetGeometryVertexAttributeTopology(RTCGeometry geometry, unsigned int vertexAttributeID, unsigned int topologyID);
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/* Sets the displacement callback function of a subdivision surface. */
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RTC_API void rtcSetGeometryDisplacementFunction(RTCGeometry geometry, RTCDisplacementFunctionN displacement);
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/* Returns the first half edge of a face. */
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RTC_API unsigned int rtcGetGeometryFirstHalfEdge(RTCGeometry geometry, unsigned int faceID);
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/* Returns the face the half edge belongs to. */
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RTC_API unsigned int rtcGetGeometryFace(RTCGeometry geometry, unsigned int edgeID);
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/* Returns next half edge. */
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RTC_API unsigned int rtcGetGeometryNextHalfEdge(RTCGeometry geometry, unsigned int edgeID);
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/* Returns previous half edge. */
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RTC_API unsigned int rtcGetGeometryPreviousHalfEdge(RTCGeometry geometry, unsigned int edgeID);
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/* Returns opposite half edge. */
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RTC_API unsigned int rtcGetGeometryOppositeHalfEdge(RTCGeometry geometry, unsigned int topologyID, unsigned int edgeID);
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/* Arguments for rtcInterpolate */
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struct RTCInterpolateArguments
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{
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RTCGeometry geometry;
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unsigned int primID;
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float u;
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float v;
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enum RTCBufferType bufferType;
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unsigned int bufferSlot;
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float* P;
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float* dPdu;
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float* dPdv;
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float* ddPdudu;
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float* ddPdvdv;
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float* ddPdudv;
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unsigned int valueCount;
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};
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/* Interpolates vertex data to some u/v location and optionally calculates all derivatives. */
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RTC_API void rtcInterpolate(const struct RTCInterpolateArguments* args);
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/* Interpolates vertex data to some u/v location. */
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RTC_FORCEINLINE void rtcInterpolate0(RTCGeometry geometry, unsigned int primID, float u, float v, enum RTCBufferType bufferType, unsigned int bufferSlot, float* P, unsigned int valueCount)
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{
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struct RTCInterpolateArguments args;
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args.geometry = geometry;
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args.primID = primID;
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args.u = u;
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args.v = v;
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args.bufferType = bufferType;
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args.bufferSlot = bufferSlot;
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args.P = P;
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args.dPdu = NULL;
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args.dPdv = NULL;
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args.ddPdudu = NULL;
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args.ddPdvdv = NULL;
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args.ddPdudv = NULL;
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args.valueCount = valueCount;
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rtcInterpolate(&args);
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}
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/* Interpolates vertex data to some u/v location and calculates first order derivatives. */
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RTC_FORCEINLINE void rtcInterpolate1(RTCGeometry geometry, unsigned int primID, float u, float v, enum RTCBufferType bufferType, unsigned int bufferSlot,
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float* P, float* dPdu, float* dPdv, unsigned int valueCount)
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{
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struct RTCInterpolateArguments args;
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args.geometry = geometry;
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args.primID = primID;
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args.u = u;
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args.v = v;
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args.bufferType = bufferType;
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args.bufferSlot = bufferSlot;
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args.P = P;
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args.dPdu = dPdu;
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args.dPdv = dPdv;
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args.ddPdudu = NULL;
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args.ddPdvdv = NULL;
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args.ddPdudv = NULL;
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args.valueCount = valueCount;
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rtcInterpolate(&args);
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}
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/* Interpolates vertex data to some u/v location and calculates first and second order derivatives. */
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RTC_FORCEINLINE void rtcInterpolate2(RTCGeometry geometry, unsigned int primID, float u, float v, enum RTCBufferType bufferType, unsigned int bufferSlot,
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float* P, float* dPdu, float* dPdv, float* ddPdudu, float* ddPdvdv, float* ddPdudv, unsigned int valueCount)
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{
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struct RTCInterpolateArguments args;
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args.geometry = geometry;
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args.primID = primID;
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args.u = u;
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args.v = v;
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args.bufferType = bufferType;
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args.bufferSlot = bufferSlot;
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args.P = P;
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args.dPdu = dPdu;
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args.dPdv = dPdv;
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args.ddPdudu = ddPdudu;
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args.ddPdvdv = ddPdvdv;
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args.ddPdudv = ddPdudv;
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args.valueCount = valueCount;
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rtcInterpolate(&args);
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}
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/* Arguments for rtcInterpolateN */
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struct RTCInterpolateNArguments
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{
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RTCGeometry geometry;
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const void* valid;
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const unsigned int* primIDs;
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const float* u;
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const float* v;
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unsigned int N;
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enum RTCBufferType bufferType;
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unsigned int bufferSlot;
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float* P;
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float* dPdu;
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float* dPdv;
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float* ddPdudu;
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float* ddPdvdv;
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float* ddPdudv;
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unsigned int valueCount;
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};
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/* Interpolates vertex data to an array of u/v locations. */
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RTC_API void rtcInterpolateN(const struct RTCInterpolateNArguments* args);
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/* RTCGrid primitive for grid mesh */
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struct RTCGrid
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{
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unsigned int startVertexID;
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unsigned int stride;
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unsigned short width,height; // max is a 32k x 32k grid
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};
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RTC_NAMESPACE_END
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