/* adds a cube to the scene */
unsigned int addSubdivCube (RTCScene scene_i)
{
unsigned int geomID = rtcNewSubdivisionMesh(scene_i, RTC_GEOMETRY_STATIC, NUM_QUAD_FACES, NUM_QUAD_INDICES, NUM_VERTICES, 0, 0, 0);
rtcSetBuffer(scene_i, geomID, RTC_VERTEX_BUFFER, cube_vertices, 0, sizeof(Vec3fa ));
rtcSetBuffer(scene_i, geomID, RTC_INDEX_BUFFER, cube_quad_indices , 0, sizeof(unsigned int));
rtcSetBuffer(scene_i, geomID, RTC_FACE_BUFFER, cube_quad_faces, 0, sizeof(unsigned int));
float* level = (float*) rtcMapBuffer(scene_i, geomID, RTC_LEVEL_BUFFER);
for (size_t i=0; i<NUM_QUAD_INDICES; i++) level[i] = 4;
rtcUnmapBuffer(scene_i, geomID, RTC_LEVEL_BUFFER);
/* create face color array */
colors = (Vec3fa*) alignedMalloc(6*sizeof(Vec3fa));
colors[0] = Vec3fa(1,0,0); // left side
colors[1] = Vec3fa(0,1,0); // right side
colors[2] = Vec3fa(0.5f); // bottom side
colors[3] = Vec3fa(1.0f); // top side
colors[4] = Vec3fa(0,0,1); // front side
colors[5] = Vec3fa(1,1,0); // back side
/* set intersection filter for the cube */
if (g_mode != MODE_NORMAL) {
rtcSetIntersectionFilterFunctionN(scene_i,geomID,intersectionFilterN);
rtcSetOcclusionFilterFunctionN (scene_i,geomID,occlusionFilterN);
}
else {
rtcSetIntersectionFilterFunction(scene_i,geomID,intersectionFilter);
rtcSetOcclusionFilterFunction (scene_i,geomID,occlusionFilter);
}
return geomID;
}
unsigned int convertLineSegments(ISPCLineSegments* mesh, RTCScene scene_out)
{
unsigned int geomID = rtcNewLineSegments (scene_out, RTC_GEOMETRY_STATIC, mesh->numSegments, mesh->numVertices, mesh->v2 ? 2 : 1);
rtcSetBuffer(scene_out,geomID,RTC_VERTEX_BUFFER,mesh->v,0,sizeof(Vertex));
if (mesh->v2) rtcSetBuffer(scene_out,geomID,RTC_VERTEX_BUFFER1,mesh->v2,0,sizeof(Vertex));
rtcSetBuffer(scene_out,geomID,RTC_INDEX_BUFFER,mesh->indices,0,sizeof(int));
return geomID;
}
void convertHairSet(ISPCHairSet* hair, RTCScene scene_out)
{
unsigned int geomID = rtcNewHairGeometry (scene_out, RTC_GEOMETRY_STATIC, hair->numHairs, hair->numVertices, hair->v2 ? 2 : 1);
rtcSetBuffer(scene_out,geomID,RTC_VERTEX_BUFFER,hair->v,0,sizeof(Vertex));
if (hair->v2) rtcSetBuffer(scene_out,geomID,RTC_VERTEX_BUFFER1,hair->v2,0,sizeof(Vertex));
rtcSetBuffer(scene_out,geomID,RTC_INDEX_BUFFER,hair->hairs,0,sizeof(ISPCHair));
rtcSetOcclusionFilterFunction(scene_out,geomID,(RTCFilterFunc)&filterDispatch);
}
uint TriangleMesh::embreeInit(RTCScene scene) {
uint geomID = rtcNewTriangleMesh(scene, RTC_GEOMETRY_STATIC, indexData.size(), posData.size());
rtcSetBuffer(scene, geomID, RTC_VERTEX_BUFFER, &posData[0], 0, sizeof(Vec3));
rtcSetBuffer(scene, geomID, RTC_INDEX_BUFFER, &indexData[0], 0, sizeof(TrianglePrimitive));
return geomID;
}
void convertTriangleMesh(ISPCTriangleMesh* mesh, RTCScene scene_out)
{
unsigned int geomID = rtcNewTriangleMesh (scene_out, RTC_GEOMETRY_STATIC, mesh->numTriangles, mesh->numVertices, mesh->positions2 ? 2 : 1);
rtcSetBuffer(scene_out,geomID,RTC_VERTEX_BUFFER,mesh->positions,0,sizeof(Vertex));
if (mesh->positions2) rtcSetBuffer(scene_out,geomID,RTC_VERTEX_BUFFER1,mesh->positions2,0,sizeof(Vertex));
rtcSetBuffer(scene_out,geomID,RTC_INDEX_BUFFER,mesh->triangles,0,sizeof(ISPCTriangle));
rtcSetOcclusionFilterFunction(scene_out,geomID,(RTCFilterFunc)&filterDispatch);
}
unsigned int convertCurveGeometry(ISPCHairSet* hair, RTCScene scene_out)
{
unsigned int geomID = rtcNewCurveGeometry (scene_out, RTC_GEOMETRY_STATIC, hair->numHairs, hair->numVertices, hair->v2 ? 2 : 1);
rtcSetBuffer(scene_out,geomID,RTC_VERTEX_BUFFER,hair->v,0,sizeof(Vertex));
if (hair->v2) rtcSetBuffer(scene_out,geomID,RTC_VERTEX_BUFFER1,hair->v2,0,sizeof(Vertex));
rtcSetBuffer(scene_out,geomID,RTC_INDEX_BUFFER,hair->hairs,0,sizeof(ISPCHair));
return geomID;
}
unsigned int convertQuadMesh(ISPCQuadMesh* mesh, RTCScene scene_out)
{
unsigned int geomID = rtcNewQuadMesh (scene_out, RTC_GEOMETRY_STATIC, mesh->numQuads, mesh->numVertices, mesh->positions2 ? 2 : 1);
rtcSetBuffer(scene_out, geomID, RTC_VERTEX_BUFFER, mesh->positions, 0, sizeof(Vec3fa ));
if (mesh->positions2) rtcSetBuffer(scene_out, geomID, RTC_VERTEX_BUFFER1, mesh->positions2, 0, sizeof(Vec3fa ));
rtcSetBuffer(scene_out, geomID, RTC_INDEX_BUFFER, mesh->quads, 0, sizeof(ISPCQuad));
mesh->geomID = geomID;
return geomID;
}
/* adds a cube to the scene */
unsigned int addCube (RTCScene scene_i)
{
/* create a triangulated cube with 6 quads and 8 vertices */
unsigned int geomID = rtcNewSubdivisionMesh(scene_i, RTC_GEOMETRY_STATIC, NUM_FACES, NUM_INDICES, 8, 0, 0, 0);
rtcSetBuffer(scene_i, geomID, RTC_VERTEX_BUFFER, cube_vertices, 0, sizeof(Vec3fa ));
rtcSetBuffer(scene_i, geomID, RTC_INDEX_BUFFER, cube_indices , 0, sizeof(unsigned int));
rtcSetBuffer(scene_i, geomID, RTC_FACE_BUFFER, cube_faces, 0, sizeof(unsigned int));
return geomID;
}
/* adds a cube to the scene */
unsigned int addCube (RTCScene scene_i)
{
/* create a triangulated cube with 6 quads and 8 vertices */
//unsigned int geomID = rtcNewTriangleMesh(scene_i, RTC_GEOMETRY_STATIC, NUM_FACES, NUM_INDICES/3);
unsigned int geomID = rtcNewSubdivisionMesh(scene_i, RTC_GEOMETRY_STATIC, NUM_FACES, NUM_INDICES, 8, 0, 0, 0);
//unsigned int geomID = rtcNewSubdivisionMesh(scene_i, RTC_GEOMETRY_STATIC, NUM_FACES, NUM_INDICES, 8, 12, 8, 0);
rtcSetBuffer(scene_i, geomID, RTC_VERTEX_BUFFER, cube_vertices, 0, sizeof(Vec3fa ));
rtcSetBuffer(scene_i, geomID, RTC_INDEX_BUFFER, cube_indices , 0, sizeof(unsigned int));
//rtcSetBuffer(scene_i, geomID, RTC_INDEX_BUFFER, cube_indices , 0, 3*sizeof(unsigned int));
rtcSetBuffer(scene_i, geomID, RTC_FACE_BUFFER, cube_faces, 0, sizeof(unsigned int));
rtcSetBuffer(scene_i, geomID, RTC_EDGE_CREASE_INDEX_BUFFER, cube_edge_crease_indices, 0, 2*sizeof(unsigned int));
rtcSetBuffer(scene_i, geomID, RTC_EDGE_CREASE_WEIGHT_BUFFER, cube_edge_crease_weights, 0, sizeof(float));
rtcSetBuffer(scene_i, geomID, RTC_VERTEX_CREASE_INDEX_BUFFER, cube_vertex_crease_indices,0, sizeof(unsigned int));
rtcSetBuffer(scene_i, geomID, RTC_VERTEX_CREASE_WEIGHT_BUFFER,cube_vertex_crease_weights,0, sizeof(float));
rtcSetBuffer(scene_i, geomID, RTC_USER_VERTEX_BUFFER0, cube_colors, 0, sizeof(Vec3fa));
float* level = (float*) rtcMapBuffer(scene_i, geomID, RTC_LEVEL_BUFFER);
for (size_t i=0; i<NUM_INDICES; i++) level[i] = EDGE_LEVEL;
rtcUnmapBuffer(scene_i, geomID, RTC_LEVEL_BUFFER);
return geomID;
}
unsigned int convertSubdivMesh(ISPCSubdivMesh* mesh, RTCScene scene_out)
{
/* if more than a single timestep, mark object as dynamic */
RTCGeometryFlags object_flags = mesh->numTimeSteps > 1 ? RTC_GEOMETRY_DYNAMIC : RTC_GEOMETRY_STATIC;
/* create object */
unsigned int geomID = rtcNewSubdivisionMesh(scene_out, object_flags, mesh->numFaces, mesh->numEdges, mesh->numVertices,
mesh->numEdgeCreases, mesh->numVertexCreases, mesh->numHoles, mesh->numTimeSteps);
mesh->geom.geomID = geomID;
for (size_t i=0; i<mesh->numEdges; i++) mesh->subdivlevel[i] = 4.0f;
/* generate vertex buffer */
Vec3fa* vertices = (Vec3fa*) rtcMapBuffer(scene_out,geomID,RTC_VERTEX_BUFFER);
for (size_t i=0;i<mesh->numVertices;i++) vertices[i] = mesh->positions[0][i];
rtcUnmapBuffer(scene_out, geomID, RTC_VERTEX_BUFFER);
/* set all other buffers */
rtcSetBuffer(scene_out, geomID, RTC_LEVEL_BUFFER, mesh->subdivlevel, 0, sizeof(float));
rtcSetBuffer(scene_out, geomID, RTC_INDEX_BUFFER, mesh->position_indices , 0, sizeof(unsigned int));
rtcSetBuffer(scene_out, geomID, RTC_FACE_BUFFER, mesh->verticesPerFace, 0, sizeof(unsigned int));
rtcSetBuffer(scene_out, geomID, RTC_HOLE_BUFFER, mesh->holes, 0, sizeof(unsigned int));
rtcSetBuffer(scene_out, geomID, RTC_EDGE_CREASE_INDEX_BUFFER, mesh->edge_creases, 0, 2*sizeof(unsigned int));
rtcSetBuffer(scene_out, geomID, RTC_EDGE_CREASE_WEIGHT_BUFFER, mesh->edge_crease_weights, 0, sizeof(float));
rtcSetBuffer(scene_out, geomID, RTC_VERTEX_CREASE_INDEX_BUFFER, mesh->vertex_creases, 0, sizeof(unsigned int));
rtcSetBuffer(scene_out, geomID, RTC_VERTEX_CREASE_WEIGHT_BUFFER, mesh->vertex_crease_weights, 0, sizeof(float));
rtcSetSubdivisionMode(scene_out, geomID, 0, mesh->position_subdiv_mode);
return geomID;
}
/* adds a cube to the scene */
unsigned int addCube (RTCScene scene_i)
{
/* create a triangulated cube with 6 quads and 8 vertices */
unsigned int geomID = rtcNewSubdivisionMesh(scene_i, RTC_GEOMETRY_STATIC, NUM_FACES, NUM_INDICES, 8, 0, 0, 0);
rtcSetBuffer(scene_i, geomID, RTC_VERTEX_BUFFER, cube_vertices, 0, sizeof(Vec3fa ));
rtcSetBuffer(scene_i, geomID, RTC_INDEX_BUFFER, cube_indices , 0, sizeof(unsigned int));
rtcSetBuffer(scene_i, geomID, RTC_FACE_BUFFER, cube_faces, 0, sizeof(unsigned int));
float* level = (float*) rtcMapBuffer(scene_i, geomID, RTC_LEVEL_BUFFER);
for (size_t i=0; i<NUM_INDICES; i++) level[i] = EDGE_LEVEL;
rtcUnmapBuffer(scene_i, geomID, RTC_LEVEL_BUFFER);
rtcSetDisplacementFunction(scene_i,geomID,(RTCDisplacementFunc)&displacementFunction,NULL);
return geomID;
}
unsigned int convertSubdivMesh(ISPCSubdivMesh* mesh, RTCScene scene_out)
{
unsigned int geomID = rtcNewSubdivisionMesh(scene_out, RTC_GEOMETRY_STATIC, mesh->numFaces, mesh->numEdges, mesh->numVertices,
mesh->numEdgeCreases, mesh->numVertexCreases, mesh->numHoles);
mesh->geomID = geomID;
for (size_t i=0; i<mesh->numEdges; i++) mesh->subdivlevel[i] = 16.0f;
rtcSetBuffer(scene_out, geomID, RTC_VERTEX_BUFFER, mesh->positions, 0, sizeof(Vec3fa ));
rtcSetBuffer(scene_out, geomID, RTC_LEVEL_BUFFER, mesh->subdivlevel, 0, sizeof(float));
rtcSetBuffer(scene_out, geomID, RTC_INDEX_BUFFER, mesh->position_indices , 0, sizeof(unsigned int));
rtcSetBuffer(scene_out, geomID, RTC_FACE_BUFFER, mesh->verticesPerFace, 0, sizeof(unsigned int));
rtcSetBuffer(scene_out, geomID, RTC_HOLE_BUFFER, mesh->holes, 0, sizeof(unsigned int));
rtcSetBuffer(scene_out, geomID, RTC_EDGE_CREASE_INDEX_BUFFER, mesh->edge_creases, 0, 2*sizeof(unsigned int));
rtcSetBuffer(scene_out, geomID, RTC_EDGE_CREASE_WEIGHT_BUFFER, mesh->edge_crease_weights, 0, sizeof(float));
rtcSetBuffer(scene_out, geomID, RTC_VERTEX_CREASE_INDEX_BUFFER, mesh->vertex_creases, 0, sizeof(unsigned int));
rtcSetBuffer(scene_out, geomID, RTC_VERTEX_CREASE_WEIGHT_BUFFER, mesh->vertex_crease_weights, 0, sizeof(float));
return geomID;
}
unsigned int convertLineSegments(ISPCLineSegments* mesh, RTCScene scene_out)
{
/* if more than a single timestep, mark object as dynamic */
RTCGeometryFlags object_flags = mesh->numTimeSteps > 1 ? RTC_GEOMETRY_DYNAMIC : RTC_GEOMETRY_STATIC;
/* create object */
unsigned int geomID = rtcNewLineSegments (scene_out, object_flags, mesh->numSegments, mesh->numVertices, mesh->numTimeSteps);
/* generate vertex buffer */
Vec3fa* vertices = (Vec3fa*) rtcMapBuffer(scene_out,geomID,RTC_VERTEX_BUFFER);
for (size_t i=0;i<mesh->numVertices;i++) vertices[i] = mesh->positions[0][i];
rtcUnmapBuffer(scene_out, geomID, RTC_VERTEX_BUFFER);
/* set index buffer */
rtcSetBuffer(scene_out,geomID,RTC_INDEX_BUFFER,mesh->indices,0,sizeof(int));
return geomID;
}
unsigned int convertCurveGeometry(ISPCHairSet* hair, RTCScene scene_out)
{
/* if more than a single timestep, mark object as dynamic */
RTCGeometryFlags object_flags = hair->numTimeSteps > 1 ? RTC_GEOMETRY_DYNAMIC : RTC_GEOMETRY_STATIC;
/* create object */
unsigned int geomID = 0;
switch (hair->basis) {
case BEZIER_BASIS : geomID = rtcNewBezierCurveGeometry (scene_out, object_flags, hair->numHairs, hair->numVertices, hair->numTimeSteps); break;
case BSPLINE_BASIS: geomID = rtcNewBSplineCurveGeometry (scene_out, object_flags, hair->numHairs, hair->numVertices, hair->numTimeSteps); break;
default: assert(false);
}
/* generate vertex buffer */
Vec3fa* vertices = (Vec3fa*) rtcMapBuffer(scene_out,geomID,RTC_VERTEX_BUFFER);
for (size_t i=0;i<hair->numVertices;i++) vertices[i] = hair->positions[0][i];
rtcUnmapBuffer(scene_out, geomID, RTC_VERTEX_BUFFER);
/* set index buffer */
rtcSetBuffer(scene_out,geomID,RTC_INDEX_BUFFER,hair->hairs,0,sizeof(ISPCHair));
return geomID;
}
/* adds a cube to the scene */
unsigned int addCube (RTCScene scene_i, const Vec3fa& offset, const Vec3fa& scale, float rotation)
{
/* create a triangulated cube with 12 triangles and 8 vertices */
unsigned int geomID = rtcNewTriangleMesh (scene_i, RTC_GEOMETRY_STATIC, NUM_TRI_FACES, NUM_VERTICES);
//rtcSetBuffer(scene_i, geomID, RTC_VERTEX_BUFFER, cube_vertices, 0, sizeof(Vec3fa ));
Vec3fa* ptr = (Vec3fa*) rtcMapBuffer(scene_i, geomID, RTC_VERTEX_BUFFER);
for (size_t i=0; i<NUM_VERTICES; i++) {
float x = cube_vertices[i][0];
float y = cube_vertices[i][1];
float z = cube_vertices[i][2];
Vec3fa vtx = Vec3fa(x,y,z);
ptr[i] = Vec3fa(offset+LinearSpace3fa::rotate(Vec3fa(0,1,0),rotation)*LinearSpace3fa::scale(scale)*vtx);
}
rtcUnmapBuffer(scene_i,geomID,RTC_VERTEX_BUFFER);
rtcSetBuffer(scene_i, geomID, RTC_INDEX_BUFFER, cube_tri_indices , 0, 3*sizeof(unsigned int));
/* create per-triangle color array */
colors = (Vec3fa*) alignedMalloc(12*sizeof(Vec3fa));
colors[0] = Vec3fa(1,0,0); // left side
colors[1] = Vec3fa(1,0,0);
colors[2] = Vec3fa(0,1,0); // right side
colors[3] = Vec3fa(0,1,0);
colors[4] = Vec3fa(0.5f); // bottom side
colors[5] = Vec3fa(0.5f);
colors[6] = Vec3fa(1.0f); // top side
colors[7] = Vec3fa(1.0f);
colors[8] = Vec3fa(0,0,1); // front side
colors[9] = Vec3fa(0,0,1);
colors[10] = Vec3fa(1,1,0); // back side
colors[11] = Vec3fa(1,1,0);
/* set intersection filter for the cube */
if (g_mode != MODE_NORMAL) {
rtcSetIntersectionFilterFunctionN(scene_i,geomID,intersectionFilterN);
rtcSetOcclusionFilterFunctionN (scene_i,geomID,occlusionFilterN);
}
else {
rtcSetIntersectionFilterFunction(scene_i,geomID,intersectionFilter);
rtcSetOcclusionFilterFunction (scene_i,geomID,occlusionFilter);
}
return geomID;
}
/* add hair geometry */
unsigned int addCurve (RTCScene scene, const Vec3fa& pos)
{
unsigned int geomID = rtcNewCurveGeometry (scene, RTC_GEOMETRY_STATIC, NUM_CURVES, 4*NUM_CURVES);
/* converts b-spline to bezier basis */
Vec3fa* vtx = (Vec3fa*) rtcMapBuffer(scene, geomID, RTC_VERTEX_BUFFER);
for (size_t i=0; i<NUM_CURVES; i++)
{
Vec3fa P = Vec3fa(pos.x,pos.y,pos.z,0.0f);
const Vec3fa v0 = Vec3fa(hair_vertices[i+0][0],hair_vertices[i+0][1],hair_vertices[i+0][2],hair_vertices[i+0][3]);
const Vec3fa v1 = Vec3fa(hair_vertices[i+1][0],hair_vertices[i+1][1],hair_vertices[i+1][2],hair_vertices[i+1][3]);
const Vec3fa v2 = Vec3fa(hair_vertices[i+2][0],hair_vertices[i+2][1],hair_vertices[i+2][2],hair_vertices[i+2][3]);
const Vec3fa v3 = Vec3fa(hair_vertices[i+3][0],hair_vertices[i+3][1],hair_vertices[i+3][2],hair_vertices[i+3][3]);
vtx[4*i+0] = P + (1.0f/6.0f)*v0 + (2.0f/3.0f)*v1 + (1.0f/6.0f)*v2;
vtx[4*i+1] = P + (2.0f/3.0f)*v1 + (1.0f/3.0f)*v2;
vtx[4*i+2] = P + (1.0f/3.0f)*v1 + (2.0f/3.0f)*v2;
vtx[4*i+3] = P + (1.0f/6.0f)*v1 + (2.0f/3.0f)*v2 + (1.0f/6.0f)*v3;
}
rtcUnmapBuffer(scene, geomID, RTC_VERTEX_BUFFER);
Vec3fa* colors = (Vec3fa*) alignedMalloc(4*NUM_CURVES*sizeof(Vec3fa));
for (size_t i=0; i<NUM_CURVES; i++)
{
const Vec3fa v0 = Vec3fa(hair_vertex_colors[i+0][0],hair_vertex_colors[i+0][1],hair_vertex_colors[i+0][2],hair_vertex_colors[i+0][3]);
const Vec3fa v1 = Vec3fa(hair_vertex_colors[i+1][0],hair_vertex_colors[i+1][1],hair_vertex_colors[i+1][2],hair_vertex_colors[i+1][3]);
const Vec3fa v2 = Vec3fa(hair_vertex_colors[i+2][0],hair_vertex_colors[i+2][1],hair_vertex_colors[i+2][2],hair_vertex_colors[i+2][3]);
const Vec3fa v3 = Vec3fa(hair_vertex_colors[i+3][0],hair_vertex_colors[i+3][1],hair_vertex_colors[i+3][2],hair_vertex_colors[i+3][3]);
colors[4*i+0] = (1.0f/6.0f)*v0 + (2.0f/3.0f)*v1 + (1.0f/6.0f)*v2;
colors[4*i+1] = (2.0f/3.0f)*v1 + (1.0f/3.0f)*v2;
colors[4*i+2] = (1.0f/3.0f)*v1 + (2.0f/3.0f)*v2;
colors[4*i+3] = (1.0f/6.0f)*v1 + (2.0f/3.0f)*v2 + (1.0f/6.0f)*v3;
}
int* index = (int*) rtcMapBuffer(scene, geomID, RTC_INDEX_BUFFER);
for (int i=0; i<NUM_CURVES; i++) {
index[i] = 4*i;
}
rtcUnmapBuffer(scene,geomID,RTC_INDEX_BUFFER);
rtcSetBuffer(scene, geomID, RTC_USER_VERTEX_BUFFER0, colors, 0, sizeof(Vec3fa));
return geomID;
}
RTCScene convertScene(ISPCScene* scene_in)
{
//scene_in->numHairSets = 0;
//scene_in->numMeshes = 0;
/* create scene */
RTCScene scene_out = rtcNewScene(RTC_SCENE_STATIC | RTC_SCENE_INCOHERENT, RTC_INTERSECT1);
/* add all hair sets to the scene */
for (int i=0; i<scene_in->numHairSets; i++)
{
ISPCHairSet* hair = scene_in->hairs[i];
unsigned int geomID = rtcNewHairGeometry (scene_out, RTC_GEOMETRY_STATIC, hair->numHairs, hair->numVertices, hair->v2 ? 2 : 1);
rtcSetBuffer(scene_out,geomID,RTC_VERTEX_BUFFER,hair->v,0,sizeof(Vertex));
if (hair->v2) rtcSetBuffer(scene_out,geomID,RTC_VERTEX_BUFFER1,hair->v2,0,sizeof(Vertex));
rtcSetBuffer(scene_out,geomID,RTC_INDEX_BUFFER,hair->hairs,0,sizeof(ISPCHair));
rtcSetOcclusionFilterFunction(scene_out,geomID,(RTCFilterFunc)&filterDispatch);
}
/* add all triangle meshes to the scene */
for (int i=0; i<scene_in->numMeshes; i++)
{
ISPCMesh* mesh = scene_in->meshes[i];
unsigned int geomID = rtcNewTriangleMesh (scene_out, RTC_GEOMETRY_STATIC, mesh->numTriangles, mesh->numVertices, mesh->positions2 ? 2 : 1);
rtcSetBuffer(scene_out,geomID,RTC_VERTEX_BUFFER,mesh->positions,0,sizeof(Vertex));
if (mesh->positions2) rtcSetBuffer(scene_out,geomID,RTC_VERTEX_BUFFER1,mesh->positions2,0,sizeof(Vertex));
rtcSetBuffer(scene_out,geomID,RTC_INDEX_BUFFER,mesh->triangles,0,sizeof(ISPCTriangle));
rtcSetOcclusionFilterFunction(scene_out,geomID,(RTCFilterFunc)&filterDispatch);
}
/* commit changes to scene */
#if !defined(PARALLEL_COMMIT)
rtcCommit (scene_out);
#else
launch[ getNumHWThreads() ] parallelCommit(scene_out);
#endif
return scene_out;
}
extern "C" void ispcSetBuffer(RTCScene scene, unsigned geomID, RTCBufferType type, void* ptr, size_t offset, size_t stride) {
rtcSetBuffer(scene,geomID,type,ptr,offset,stride);
}
RTCScene convertScene(ISPCScene* scene_in)
{
//scene_in->numHairSets = 0;
//scene_in->numMeshes = 0;
/* create scene */
RTCScene scene_out = rtcNewScene(RTC_SCENE_STATIC | RTC_SCENE_INCOHERENT, RTC_INTERSECT1);
/* add all hair sets to the scene */
for (int i=0; i<scene_in->numHairSets; i++)
{
ISPCHairSet* hair = scene_in->hairs[i];
unsigned int geomID = rtcNewHairGeometry (scene_out, RTC_GEOMETRY_STATIC, hair->numHairs, hair->numVertices, hair->v2 ? 2 : 1);
rtcSetBuffer(scene_out,geomID,RTC_VERTEX_BUFFER,hair->v,0,sizeof(Vertex));
if (hair->v2) rtcSetBuffer(scene_out,geomID,RTC_VERTEX_BUFFER1,hair->v2,0,sizeof(Vertex));
rtcSetBuffer(scene_out,geomID,RTC_INDEX_BUFFER,hair->hairs,0,sizeof(ISPCHair));
rtcSetOcclusionFilterFunction(scene_out,geomID,(RTCFilterFunc)&filterDispatch);
}
/* add all triangle meshes to the scene */
for (int i=0; i<scene_in->numMeshes; i++)
{
ISPCMesh* mesh = scene_in->meshes[i];
if (mesh->numQuads)
{
g_subdiv_mode = true;
size_t numPrimitives = mesh->numQuads;
size_t numEdges = mesh->numQuads*4;
mesh->edge_level = new float[numEdges];
int *index_buffer = new int[numEdges];
for (size_t i=0; i<numEdges; i++)
mesh->edge_level[i] = FIXED_EDGE_TESSELLATION_VALUE;
/* create a triangle mesh */
unsigned int geomID = rtcNewSubdivisionMesh (scene_out, RTC_GEOMETRY_STATIC, numPrimitives, numEdges, mesh->numVertices, 0, 0, 0);
mesh->geomID = geomID;
unsigned int* faces = (unsigned int*) rtcMapBuffer(scene_out, geomID, RTC_FACE_BUFFER);
for (size_t i=0; i<mesh->numQuads ; i++) faces[i] = 4;
rtcUnmapBuffer(scene_out,geomID,RTC_FACE_BUFFER);
for (size_t i=0; i<mesh->numQuads; i++)
{
index_buffer[4*i+0] = mesh->quads[i].v0;
index_buffer[4*i+1] = mesh->quads[i].v1;
index_buffer[4*i+2] = mesh->quads[i].v2;
index_buffer[4*i+3] = mesh->quads[i].v3;
}
rtcSetBuffer(scene_out, geomID, RTC_VERTEX_BUFFER, mesh->positions , 0, sizeof(Vec3fa ));
rtcSetBuffer(scene_out, geomID, RTC_INDEX_BUFFER, index_buffer , 0, sizeof(unsigned int));
rtcSetBuffer(scene_out, geomID, RTC_LEVEL_BUFFER, mesh->edge_level, 0, sizeof(float));
#if ENABLE_DISPLACEMENTS == 1
rtcSetDisplacementFunction(scene_out,geomID,(RTCDisplacementFunc)&displacementFunction,NULL);
#endif
}
else if (mesh->numTriangles)
{
unsigned int geomID = rtcNewTriangleMesh (scene_out, RTC_GEOMETRY_STATIC, mesh->numTriangles, mesh->numVertices, mesh->positions2 ? 2 : 1);
rtcSetBuffer(scene_out,geomID,RTC_VERTEX_BUFFER,mesh->positions,0,sizeof(Vertex));
if (mesh->positions2) rtcSetBuffer(scene_out,geomID,RTC_VERTEX_BUFFER1,mesh->positions2,0,sizeof(Vertex));
rtcSetBuffer(scene_out,geomID,RTC_INDEX_BUFFER,mesh->triangles,0,sizeof(ISPCTriangle));
rtcSetOcclusionFilterFunction(scene_out,geomID,(RTCFilterFunc)&filterDispatch);
}
}
/* commit changes to scene */
rtcCommit (scene_out);
return scene_out;
}
