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Diffstat (limited to 'intern/cycles/subd/subd_mesh.cpp')
| -rw-r--r-- | intern/cycles/subd/subd_mesh.cpp | 419 |
1 files changed, 0 insertions, 419 deletions
diff --git a/intern/cycles/subd/subd_mesh.cpp b/intern/cycles/subd/subd_mesh.cpp deleted file mode 100644 index 56d7d2b2303..00000000000 --- a/intern/cycles/subd/subd_mesh.cpp +++ /dev/null @@ -1,419 +0,0 @@ -/* - * Original code in the public domain -- castanyo@yahoo.es - * - * Modifications copyright (c) 2011, Blender Foundation. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include <stdio.h> - -#include "subd_mesh.h" -#include "subd_patch.h" -#include "subd_split.h" - -#include "util_debug.h" -#include "util_foreach.h" - -#ifdef WITH_OPENSUBDIV - -#include <osd/vertex.h> -#include <osd/mesh.h> -#include <osd/cpuComputeController.h> -#include <osd/cpuVertexBuffer.h> -#include <osd/cpuEvalLimitController.h> -#include <osd/evalLimitContext.h> - -CCL_NAMESPACE_BEGIN - -/* typedefs */ -typedef OpenSubdiv::OsdVertex OsdVertex; -typedef OpenSubdiv::FarMesh<OsdVertex> OsdFarMesh; -typedef OpenSubdiv::FarMeshFactory<OsdVertex> OsdFarMeshFactory; -typedef OpenSubdiv::HbrCatmarkSubdivision<OsdVertex> OsdHbrCatmarkSubdivision; -typedef OpenSubdiv::HbrFace<OsdVertex> OsdHbrFace; -typedef OpenSubdiv::HbrHalfedge<OsdVertex> OsdHbrHalfEdge; -typedef OpenSubdiv::HbrMesh<OsdVertex> OsdHbrMesh; -typedef OpenSubdiv::HbrVertex<OsdVertex> OsdHbrVertex; -typedef OpenSubdiv::OsdCpuComputeContext OsdCpuComputeContext; -typedef OpenSubdiv::OsdCpuComputeController OsdCpuComputeController; -typedef OpenSubdiv::OsdCpuEvalLimitContext OsdCpuEvalLimitContext; -typedef OpenSubdiv::OsdCpuEvalLimitController OsdCpuEvalLimitController; -typedef OpenSubdiv::OsdCpuVertexBuffer OsdCpuVertexBuffer; -typedef OpenSubdiv::OsdEvalCoords OsdEvalCoords; -typedef OpenSubdiv::OsdVertexBufferDescriptor OsdVertexBufferDescriptor; - -/* OpenSubdiv Patch */ - -class OpenSubdPatch : public Patch { -public: - int face_id; - - OpenSubdPatch(OsdFarMesh *farmesh, OsdCpuVertexBuffer *vbuf_base) - { - face_id = 0; - - /* create buffers for evaluation */ - vbuf_P = OsdCpuVertexBuffer::Create(3, 1); - vbuf_dPdu = OsdCpuVertexBuffer::Create(3, 1); - vbuf_dPdv = OsdCpuVertexBuffer::Create(3, 1); - - P = vbuf_P->BindCpuBuffer(); - dPdu = vbuf_dPdu->BindCpuBuffer(); - dPdv = vbuf_dPdv->BindCpuBuffer(); - - /* setup evaluation context */ - OsdVertexBufferDescriptor in_desc(0, 3, 3), out_desc(0, 3, 3); /* offset, length, stride */ - - evalctx = OsdCpuEvalLimitContext::Create(farmesh, false); - evalctx->GetVertexData().Bind(in_desc, vbuf_base, out_desc, vbuf_P, vbuf_dPdu, vbuf_dPdv); - } - - ~OpenSubdPatch() - { - evalctx->GetVertexData().Unbind(); - - delete evalctx; - delete vbuf_P; - delete vbuf_dPdu; - delete vbuf_dPdv; - } - - void eval(float3 *P_, float3 *dPdu_, float3 *dPdv_, float u, float v) - { - OsdEvalCoords coords; - coords.u = u; - coords.v = v; - coords.face = face_id; - - evalctrl.EvalLimitSample<OsdCpuVertexBuffer,OsdCpuVertexBuffer>(coords, evalctx, 0); - - *P_ = make_float3(P[0], P[1], P[2]); - if(dPdu_) *dPdu_ = make_float3(dPdv[0], dPdv[1], dPdv[2]); - if(dPdv_) *dPdv_ = make_float3(dPdu[0], dPdu[1], dPdu[2]); - - /* optimize: skip evaluating derivatives when not needed */ - /* todo: swapped derivatives, different winding convention? */ - } - - BoundBox bound() - { - /* not implemented */ - BoundBox bbox = BoundBox::empty; - return bbox; - } - - int ptex_face_id() - { - return face_id; - } - -protected: - OsdCpuEvalLimitController evalctrl; - OsdCpuEvalLimitContext *evalctx; - OsdCpuVertexBuffer *vbuf_P; - OsdCpuVertexBuffer *vbuf_dPdu; - OsdCpuVertexBuffer *vbuf_dPdv; - float *P; - float *dPdu; - float *dPdv; -}; - -/* OpenSubdiv Mesh */ - -OpenSubdMesh::OpenSubdMesh() -{ - /* create osd mesh */ - static OsdHbrCatmarkSubdivision catmark; - OsdHbrMesh *hbrmesh = new OsdHbrMesh(&catmark); - - /* initialize class */ - num_verts = 0; - num_ptex_faces = 0; - _hbrmesh = (void*)hbrmesh; -} - -OpenSubdMesh::~OpenSubdMesh() -{ - OsdHbrMesh *hbrmesh = (OsdHbrMesh*)_hbrmesh; - - if(hbrmesh) - delete hbrmesh; -} - -void OpenSubdMesh::add_vert(const float3& co) -{ - OsdHbrMesh *hbrmesh = (OsdHbrMesh*)_hbrmesh; - - OsdVertex v; - positions.push_back(co.x); - positions.push_back(co.y); - positions.push_back(co.z); - hbrmesh->NewVertex(num_verts++, v); -} - -void OpenSubdMesh::add_face(int v0, int v1, int v2) -{ - int index[3] = {v0, v1, v2}; - return add_face(index, 3); -} - -void OpenSubdMesh::add_face(int v0, int v1, int v2, int v3) -{ - int index[4] = {v0, v1, v2, v3}; - add_face(index, 4); -} - -void OpenSubdMesh::add_face(int *index, int num) -{ - OsdHbrMesh *hbrmesh = (OsdHbrMesh*)_hbrmesh; - -#ifndef NDEBUG - /* sanity checks */ - for(int j = 0; j < num; j++) { - OsdHbrVertex *origin = hbrmesh->GetVertex(index[j]); - OsdHbrVertex *destination = hbrmesh->GetVertex(index[(j+1)%num]); - OsdHbrHalfEdge *opposite = destination->GetEdge(origin); - - if(origin==NULL || destination==NULL) - assert(!"An edge was specified that connected a nonexistent vertex\n"); - - if(origin == destination) - assert(!"An edge was specified that connected a vertex to itself\n"); - - if(opposite && opposite->GetOpposite()) - assert(!"A non-manifold edge incident to more than 2 faces was found\n"); - - if(origin->GetEdge(destination)) { - assert(!"An edge connecting two vertices was specified more than once." - "It's likely that an incident face was flipped\n"); - } - } -#endif - - OsdHbrFace *face = hbrmesh->NewFace(num, index, 0); - - /* this is required for limit eval patch table? */ - face->SetPtexIndex(num_ptex_faces); - - if(num == 4) - num_ptex_faces++; - else - num_ptex_faces += num; -} - -bool OpenSubdMesh::finish() -{ - OsdHbrMesh *hbrmesh = (OsdHbrMesh*)_hbrmesh; - - /* finish hbr mesh construction */ - hbrmesh->SetInterpolateBoundaryMethod(OsdHbrMesh::k_InterpolateBoundaryEdgeOnly); - hbrmesh->Finish(); - - return true; -} - -void OpenSubdMesh::tessellate(DiagSplit *split) -{ - if(num_ptex_faces == 0) - return; - - const int level = 3; - const bool requirefvar = false; - - /* convert HRB to FAR mesh */ - OsdHbrMesh *hbrmesh = (OsdHbrMesh*)_hbrmesh; - - OsdFarMeshFactory meshFactory(hbrmesh, level, true); - OsdFarMesh *farmesh = meshFactory.Create(requirefvar); - int num_hbr_verts = hbrmesh->GetNumVertices(); - - delete hbrmesh; - hbrmesh = NULL; - _hbrmesh = NULL; - - /* refine HBR mesh with vertex coordinates */ - OsdCpuComputeController *compute_controller = new OsdCpuComputeController(); - OsdCpuComputeContext *compute_context = OsdCpuComputeContext::Create(farmesh); - - OsdCpuVertexBuffer *vbuf_base = OsdCpuVertexBuffer::Create(3, num_hbr_verts); - vbuf_base->UpdateData(&positions[0], 0, num_verts); - - compute_controller->Refine(compute_context, farmesh->GetKernelBatches(), vbuf_base); - compute_controller->Synchronize(); - - /* split & dice patches */ - OpenSubdPatch patch(farmesh, vbuf_base); - - for(int f = 0; f < num_ptex_faces; f++) { - patch.face_id = f; - split->split_quad(&patch); - } - - /* clean up */ - delete farmesh; - delete compute_controller; - delete compute_context; - delete vbuf_base; -} - -CCL_NAMESPACE_END - -#else /* WITH_OPENSUBDIV */ - -CCL_NAMESPACE_BEGIN - -/* Subd Vertex */ - -class SubdVert -{ -public: - int id; - float3 co; - - explicit SubdVert(int id_) - { - id = id_; - co = make_float3(0.0f, 0.0f, 0.0f); - } -}; - -/* Subd Face */ - -class SubdFace -{ -public: - int id; - int numverts; - int verts[4]; - - explicit SubdFace(int id_) - { - id = id_; - numverts = 0; - } -}; - -/* Subd Mesh */ - -SubdMesh::SubdMesh() -{ -} - -SubdMesh::~SubdMesh() -{ - foreach(SubdVert *vertex, verts) - delete vertex; - foreach(SubdFace *face, faces) - delete face; - - verts.clear(); - faces.clear(); -} - -SubdVert *SubdMesh::add_vert(const float3& co) -{ - SubdVert *v = new SubdVert(verts.size()); - v->co = co; - verts.push_back(v); - - return v; -} - -SubdFace *SubdMesh::add_face(int v0, int v1, int v2) -{ - int index[3] = {v0, v1, v2}; - return add_face(index, 3); -} - -SubdFace *SubdMesh::add_face(int v0, int v1, int v2, int v3) -{ - int index[4] = {v0, v1, v2, v3}; - return add_face(index, 4); -} - -SubdFace *SubdMesh::add_face(int *index, int num) -{ - /* skip ngons */ - if(num < 3 || num > 4) - return NULL; - - SubdFace *f = new SubdFace(faces.size()); - - for(int i = 0; i < num; i++) - f->verts[i] = index[i]; - - f->numverts = num; - faces.push_back(f); - - return f; -} - -bool SubdMesh::finish() -{ - return true; -} - -void SubdMesh::tessellate(DiagSplit *split) -{ - int num_faces = faces.size(); - - for(int f = 0; f < num_faces; f++) { - SubdFace *face = faces[f]; - Patch *patch; - float3 *hull; - - if(face->numverts == 3) { - LinearTrianglePatch *lpatch = new LinearTrianglePatch(); - hull = lpatch->hull; - patch = lpatch; - } - else if(face->numverts == 4) { - LinearQuadPatch *lpatch = new LinearQuadPatch(); - hull = lpatch->hull; - patch = lpatch; - } - else { - assert(0); /* n-gons should have been split already */ - continue; - } - - for(int i = 0; i < face->numverts; i++) - hull[i] = verts[face->verts[i]]->co; - - if(face->numverts == 4) - swap(hull[2], hull[3]); - - if(patch->is_triangle()) - split->split_triangle(patch); - else - split->split_quad(patch); - - delete patch; - } -} - -CCL_NAMESPACE_END - -#endif /* WITH_OPENSUBDIV */ - |