diff options
Diffstat (limited to 'intern/cycles/render/mesh.cpp')
| -rw-r--r-- | intern/cycles/render/mesh.cpp | 812 |
1 files changed, 0 insertions, 812 deletions
diff --git a/intern/cycles/render/mesh.cpp b/intern/cycles/render/mesh.cpp deleted file mode 100644 index 9c93f6f881c..00000000000 --- a/intern/cycles/render/mesh.cpp +++ /dev/null @@ -1,812 +0,0 @@ -/* - * Copyright 2011-2013 Blender Foundation - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include "bvh/bvh.h" -#include "bvh/bvh_build.h" - -#include "device/device.h" - -#include "render/graph.h" -#include "render/hair.h" -#include "render/mesh.h" -#include "render/object.h" -#include "render/scene.h" - -#include "subd/subd_patch_table.h" -#include "subd/subd_split.h" - -#include "util/util_foreach.h" -#include "util/util_logging.h" -#include "util/util_progress.h" -#include "util/util_set.h" - -CCL_NAMESPACE_BEGIN - -/* Triangle */ - -void Mesh::Triangle::bounds_grow(const float3 *verts, BoundBox &bounds) const -{ - bounds.grow(verts[v[0]]); - bounds.grow(verts[v[1]]); - bounds.grow(verts[v[2]]); -} - -void Mesh::Triangle::motion_verts(const float3 *verts, - const float3 *vert_steps, - size_t num_verts, - size_t num_steps, - float time, - float3 r_verts[3]) const -{ - /* Figure out which steps we need to fetch and their interpolation factor. */ - const size_t max_step = num_steps - 1; - const size_t step = min((int)(time * max_step), max_step - 1); - const float t = time * max_step - step; - /* Fetch vertex coordinates. */ - float3 curr_verts[3]; - float3 next_verts[3]; - verts_for_step(verts, vert_steps, num_verts, num_steps, step, curr_verts); - verts_for_step(verts, vert_steps, num_verts, num_steps, step + 1, next_verts); - /* Interpolate between steps. */ - r_verts[0] = (1.0f - t) * curr_verts[0] + t * next_verts[0]; - r_verts[1] = (1.0f - t) * curr_verts[1] + t * next_verts[1]; - r_verts[2] = (1.0f - t) * curr_verts[2] + t * next_verts[2]; -} - -void Mesh::Triangle::verts_for_step(const float3 *verts, - const float3 *vert_steps, - size_t num_verts, - size_t num_steps, - size_t step, - float3 r_verts[3]) const -{ - const size_t center_step = ((num_steps - 1) / 2); - if (step == center_step) { - /* Center step: regular vertex location. */ - r_verts[0] = verts[v[0]]; - r_verts[1] = verts[v[1]]; - r_verts[2] = verts[v[2]]; - } - else { - /* Center step not stored in the attribute array array. */ - if (step > center_step) { - step--; - } - size_t offset = step * num_verts; - r_verts[0] = vert_steps[offset + v[0]]; - r_verts[1] = vert_steps[offset + v[1]]; - r_verts[2] = vert_steps[offset + v[2]]; - } -} - -float3 Mesh::Triangle::compute_normal(const float3 *verts) const -{ - const float3 &v0 = verts[v[0]]; - const float3 &v1 = verts[v[1]]; - const float3 &v2 = verts[v[2]]; - const float3 norm = cross(v1 - v0, v2 - v0); - const float normlen = len(norm); - if (normlen == 0.0f) { - return make_float3(1.0f, 0.0f, 0.0f); - } - return norm / normlen; -} - -bool Mesh::Triangle::valid(const float3 *verts) const -{ - return isfinite3_safe(verts[v[0]]) && isfinite3_safe(verts[v[1]]) && isfinite3_safe(verts[v[2]]); -} - -/* SubdFace */ - -float3 Mesh::SubdFace::normal(const Mesh *mesh) const -{ - float3 v0 = mesh->verts[mesh->subd_face_corners[start_corner + 0]]; - float3 v1 = mesh->verts[mesh->subd_face_corners[start_corner + 1]]; - float3 v2 = mesh->verts[mesh->subd_face_corners[start_corner + 2]]; - - return safe_normalize(cross(v1 - v0, v2 - v0)); -} - -/* Mesh */ - -NODE_DEFINE(Mesh) -{ - NodeType *type = NodeType::add("mesh", create, NodeType::NONE, Geometry::get_node_base_type()); - - SOCKET_INT_ARRAY(triangles, "Triangles", array<int>()); - SOCKET_POINT_ARRAY(verts, "Vertices", array<float3>()); - SOCKET_INT_ARRAY(shader, "Shader", array<int>()); - SOCKET_BOOLEAN_ARRAY(smooth, "Smooth", array<bool>()); - - SOCKET_INT_ARRAY(triangle_patch, "Triangle Patch", array<int>()); - SOCKET_POINT2_ARRAY(vert_patch_uv, "Patch UVs", array<float2>()); - - static NodeEnum subdivision_type_enum; - subdivision_type_enum.insert("none", SUBDIVISION_NONE); - subdivision_type_enum.insert("linear", SUBDIVISION_LINEAR); - subdivision_type_enum.insert("catmull_clark", SUBDIVISION_CATMULL_CLARK); - SOCKET_ENUM(subdivision_type, "Subdivision Type", subdivision_type_enum, SUBDIVISION_NONE); - - SOCKET_INT_ARRAY(subd_creases_edge, "Subdivision Crease Edges", array<int>()); - SOCKET_FLOAT_ARRAY(subd_creases_weight, "Subdivision Crease Weights", array<float>()); - SOCKET_INT_ARRAY(subd_face_corners, "Subdivision Face Corners", array<int>()); - SOCKET_INT_ARRAY(subd_start_corner, "Subdivision Face Start Corner", array<int>()); - SOCKET_INT_ARRAY(subd_num_corners, "Subdivision Face Corner Count", array<int>()); - SOCKET_INT_ARRAY(subd_shader, "Subdivision Face Shader", array<int>()); - SOCKET_BOOLEAN_ARRAY(subd_smooth, "Subdivision Face Smooth", array<bool>()); - SOCKET_INT_ARRAY(subd_ptex_offset, "Subdivision Face PTex Offset", array<int>()); - SOCKET_INT(num_ngons, "NGons Number", 0); - - /* Subdivisions parameters */ - SOCKET_FLOAT(subd_dicing_rate, "Subdivision Dicing Rate", 0.0f) - SOCKET_INT(subd_max_level, "Subdivision Dicing Rate", 0); - SOCKET_TRANSFORM(subd_objecttoworld, "Subdivision Object Transform", transform_identity()); - - return type; -} - -SubdParams *Mesh::get_subd_params() -{ - if (subdivision_type == SubdivisionType::SUBDIVISION_NONE) { - return nullptr; - } - - if (!subd_params) { - subd_params = new SubdParams(this); - } - - subd_params->dicing_rate = subd_dicing_rate; - subd_params->max_level = subd_max_level; - subd_params->objecttoworld = subd_objecttoworld; - - return subd_params; -} - -bool Mesh::need_tesselation() -{ - return get_subd_params() && (verts_is_modified() || subd_dicing_rate_is_modified() || - subd_objecttoworld_is_modified() || subd_max_level_is_modified()); -} - -Mesh::Mesh(const NodeType *node_type, Type geom_type_) - : Geometry(node_type, geom_type_), subd_attributes(this, ATTR_PRIM_SUBD) -{ - vert_offset = 0; - - patch_offset = 0; - face_offset = 0; - corner_offset = 0; - - num_subd_verts = 0; - num_subd_faces = 0; - - num_ngons = 0; - - subdivision_type = SUBDIVISION_NONE; - subd_params = NULL; - - patch_table = NULL; -} - -Mesh::Mesh() : Mesh(get_node_type(), Geometry::MESH) -{ -} - -Mesh::~Mesh() -{ - delete patch_table; - delete subd_params; -} - -void Mesh::resize_mesh(int numverts, int numtris) -{ - verts.resize(numverts); - triangles.resize(numtris * 3); - shader.resize(numtris); - smooth.resize(numtris); - - if (get_num_subd_faces()) { - triangle_patch.resize(numtris); - vert_patch_uv.resize(numverts); - } - - attributes.resize(); -} - -void Mesh::reserve_mesh(int numverts, int numtris) -{ - /* reserve space to add verts and triangles later */ - verts.reserve(numverts); - triangles.reserve(numtris * 3); - shader.reserve(numtris); - smooth.reserve(numtris); - - if (get_num_subd_faces()) { - triangle_patch.reserve(numtris); - vert_patch_uv.reserve(numverts); - } - - attributes.resize(true); -} - -void Mesh::resize_subd_faces(int numfaces, int num_ngons_, int numcorners) -{ - subd_start_corner.resize(numfaces); - subd_num_corners.resize(numfaces); - subd_shader.resize(numfaces); - subd_smooth.resize(numfaces); - subd_ptex_offset.resize(numfaces); - subd_face_corners.resize(numcorners); - num_ngons = num_ngons_; - num_subd_faces = numfaces; - - subd_attributes.resize(); -} - -void Mesh::reserve_subd_faces(int numfaces, int num_ngons_, int numcorners) -{ - subd_start_corner.reserve(numfaces); - subd_num_corners.reserve(numfaces); - subd_shader.reserve(numfaces); - subd_smooth.reserve(numfaces); - subd_ptex_offset.reserve(numfaces); - subd_face_corners.reserve(numcorners); - num_ngons = num_ngons_; - num_subd_faces = numfaces; - - subd_attributes.resize(true); -} - -void Mesh::reserve_subd_creases(size_t num_creases) -{ - subd_creases_edge.reserve(num_creases * 2); - subd_creases_weight.reserve(num_creases); -} - -void Mesh::clear_non_sockets() -{ - Geometry::clear(true); - - num_subd_verts = 0; - num_subd_faces = 0; - - vert_to_stitching_key_map.clear(); - vert_stitching_map.clear(); - - delete patch_table; - patch_table = NULL; -} - -void Mesh::clear(bool preserve_shaders, bool preserve_voxel_data) -{ - Geometry::clear(preserve_shaders); - - /* clear all verts and triangles */ - verts.clear(); - triangles.clear(); - shader.clear(); - smooth.clear(); - - triangle_patch.clear(); - vert_patch_uv.clear(); - - subd_start_corner.clear(); - subd_num_corners.clear(); - subd_shader.clear(); - subd_smooth.clear(); - subd_ptex_offset.clear(); - subd_face_corners.clear(); - - subd_creases_edge.clear(); - subd_creases_weight.clear(); - - subd_attributes.clear(); - attributes.clear(preserve_voxel_data); - - subdivision_type = SubdivisionType::SUBDIVISION_NONE; - - clear_non_sockets(); -} - -void Mesh::clear(bool preserve_shaders) -{ - clear(preserve_shaders, false); -} - -void Mesh::add_vertex(float3 P) -{ - verts.push_back_reserved(P); - tag_verts_modified(); - - if (get_num_subd_faces()) { - vert_patch_uv.push_back_reserved(zero_float2()); - tag_vert_patch_uv_modified(); - } -} - -void Mesh::add_vertex_slow(float3 P) -{ - verts.push_back_slow(P); - tag_verts_modified(); - - if (get_num_subd_faces()) { - vert_patch_uv.push_back_slow(zero_float2()); - tag_vert_patch_uv_modified(); - } -} - -void Mesh::add_triangle(int v0, int v1, int v2, int shader_, bool smooth_) -{ - triangles.push_back_reserved(v0); - triangles.push_back_reserved(v1); - triangles.push_back_reserved(v2); - shader.push_back_reserved(shader_); - smooth.push_back_reserved(smooth_); - - tag_triangles_modified(); - tag_shader_modified(); - tag_smooth_modified(); - - if (get_num_subd_faces()) { - triangle_patch.push_back_reserved(-1); - tag_triangle_patch_modified(); - } -} - -void Mesh::add_subd_face(int *corners, int num_corners, int shader_, bool smooth_) -{ - int start_corner = subd_face_corners.size(); - - for (int i = 0; i < num_corners; i++) { - subd_face_corners.push_back_reserved(corners[i]); - } - - int ptex_offset = 0; - // cannot use get_num_subd_faces here as it holds the total number of subd_faces, but we do not - // have the total amount of data yet - if (subd_shader.size()) { - SubdFace s = get_subd_face(subd_shader.size() - 1); - ptex_offset = s.ptex_offset + s.num_ptex_faces(); - } - - subd_start_corner.push_back_reserved(start_corner); - subd_num_corners.push_back_reserved(num_corners); - subd_shader.push_back_reserved(shader_); - subd_smooth.push_back_reserved(smooth_); - subd_ptex_offset.push_back_reserved(ptex_offset); - - tag_subd_face_corners_modified(); - tag_subd_start_corner_modified(); - tag_subd_num_corners_modified(); - tag_subd_shader_modified(); - tag_subd_smooth_modified(); - tag_subd_ptex_offset_modified(); -} - -Mesh::SubdFace Mesh::get_subd_face(size_t index) const -{ - Mesh::SubdFace s; - s.shader = subd_shader[index]; - s.num_corners = subd_num_corners[index]; - s.smooth = subd_smooth[index]; - s.ptex_offset = subd_ptex_offset[index]; - s.start_corner = subd_start_corner[index]; - return s; -} - -void Mesh::add_crease(int v0, int v1, float weight) -{ - subd_creases_edge.push_back_slow(v0); - subd_creases_edge.push_back_slow(v1); - subd_creases_weight.push_back_slow(weight); - - tag_subd_creases_edge_modified(); - tag_subd_creases_edge_modified(); - tag_subd_creases_weight_modified(); -} - -void Mesh::copy_center_to_motion_step(const int motion_step) -{ - Attribute *attr_mP = attributes.find(ATTR_STD_MOTION_VERTEX_POSITION); - - if (attr_mP) { - Attribute *attr_mN = attributes.find(ATTR_STD_MOTION_VERTEX_NORMAL); - Attribute *attr_N = attributes.find(ATTR_STD_VERTEX_NORMAL); - float3 *P = &verts[0]; - float3 *N = (attr_N) ? attr_N->data_float3() : NULL; - size_t numverts = verts.size(); - - memcpy(attr_mP->data_float3() + motion_step * numverts, P, sizeof(float3) * numverts); - if (attr_mN) - memcpy(attr_mN->data_float3() + motion_step * numverts, N, sizeof(float3) * numverts); - } -} - -void Mesh::get_uv_tiles(ustring map, unordered_set<int> &tiles) -{ - Attribute *attr, *subd_attr; - - if (map.empty()) { - attr = attributes.find(ATTR_STD_UV); - subd_attr = subd_attributes.find(ATTR_STD_UV); - } - else { - attr = attributes.find(map); - subd_attr = subd_attributes.find(map); - } - - if (attr) { - attr->get_uv_tiles(this, ATTR_PRIM_GEOMETRY, tiles); - } - if (subd_attr) { - subd_attr->get_uv_tiles(this, ATTR_PRIM_SUBD, tiles); - } -} - -void Mesh::compute_bounds() -{ - BoundBox bnds = BoundBox::empty; - size_t verts_size = verts.size(); - - if (verts_size > 0) { - for (size_t i = 0; i < verts_size; i++) - bnds.grow(verts[i]); - - Attribute *attr = attributes.find(ATTR_STD_MOTION_VERTEX_POSITION); - if (use_motion_blur && attr) { - size_t steps_size = verts.size() * (motion_steps - 1); - float3 *vert_steps = attr->data_float3(); - - for (size_t i = 0; i < steps_size; i++) - bnds.grow(vert_steps[i]); - } - - if (!bnds.valid()) { - bnds = BoundBox::empty; - - /* skip nan or inf coordinates */ - for (size_t i = 0; i < verts_size; i++) - bnds.grow_safe(verts[i]); - - if (use_motion_blur && attr) { - size_t steps_size = verts.size() * (motion_steps - 1); - float3 *vert_steps = attr->data_float3(); - - for (size_t i = 0; i < steps_size; i++) - bnds.grow_safe(vert_steps[i]); - } - } - } - - if (!bnds.valid()) { - /* empty mesh */ - bnds.grow(zero_float3()); - } - - bounds = bnds; -} - -void Mesh::apply_transform(const Transform &tfm, const bool apply_to_motion) -{ - transform_normal = transform_transposed_inverse(tfm); - - /* apply to mesh vertices */ - for (size_t i = 0; i < verts.size(); i++) - verts[i] = transform_point(&tfm, verts[i]); - - tag_verts_modified(); - - if (apply_to_motion) { - Attribute *attr = attributes.find(ATTR_STD_MOTION_VERTEX_POSITION); - - if (attr) { - size_t steps_size = verts.size() * (motion_steps - 1); - float3 *vert_steps = attr->data_float3(); - - for (size_t i = 0; i < steps_size; i++) - vert_steps[i] = transform_point(&tfm, vert_steps[i]); - } - - Attribute *attr_N = attributes.find(ATTR_STD_MOTION_VERTEX_NORMAL); - - if (attr_N) { - Transform ntfm = transform_normal; - size_t steps_size = verts.size() * (motion_steps - 1); - float3 *normal_steps = attr_N->data_float3(); - - for (size_t i = 0; i < steps_size; i++) - normal_steps[i] = normalize(transform_direction(&ntfm, normal_steps[i])); - } - } -} - -void Mesh::add_face_normals() -{ - /* don't compute if already there */ - if (attributes.find(ATTR_STD_FACE_NORMAL)) - return; - - /* get attributes */ - Attribute *attr_fN = attributes.add(ATTR_STD_FACE_NORMAL); - float3 *fN = attr_fN->data_float3(); - - /* compute face normals */ - size_t triangles_size = num_triangles(); - - if (triangles_size) { - float3 *verts_ptr = verts.data(); - - for (size_t i = 0; i < triangles_size; i++) { - fN[i] = get_triangle(i).compute_normal(verts_ptr); - } - } - - /* expected to be in local space */ - if (transform_applied) { - Transform ntfm = transform_inverse(transform_normal); - - for (size_t i = 0; i < triangles_size; i++) - fN[i] = normalize(transform_direction(&ntfm, fN[i])); - } -} - -void Mesh::add_vertex_normals() -{ - bool flip = transform_negative_scaled; - size_t verts_size = verts.size(); - size_t triangles_size = num_triangles(); - - /* static vertex normals */ - if (!attributes.find(ATTR_STD_VERTEX_NORMAL) && triangles_size) { - /* get attributes */ - Attribute *attr_fN = attributes.find(ATTR_STD_FACE_NORMAL); - Attribute *attr_vN = attributes.add(ATTR_STD_VERTEX_NORMAL); - - float3 *fN = attr_fN->data_float3(); - float3 *vN = attr_vN->data_float3(); - - /* compute vertex normals */ - memset(vN, 0, verts.size() * sizeof(float3)); - - for (size_t i = 0; i < triangles_size; i++) { - for (size_t j = 0; j < 3; j++) { - vN[get_triangle(i).v[j]] += fN[i]; - } - } - - for (size_t i = 0; i < verts_size; i++) { - vN[i] = normalize(vN[i]); - if (flip) { - vN[i] = -vN[i]; - } - } - } - - /* motion vertex normals */ - Attribute *attr_mP = attributes.find(ATTR_STD_MOTION_VERTEX_POSITION); - Attribute *attr_mN = attributes.find(ATTR_STD_MOTION_VERTEX_NORMAL); - - if (has_motion_blur() && attr_mP && !attr_mN && triangles_size) { - /* create attribute */ - attr_mN = attributes.add(ATTR_STD_MOTION_VERTEX_NORMAL); - - for (int step = 0; step < motion_steps - 1; step++) { - float3 *mP = attr_mP->data_float3() + step * verts.size(); - float3 *mN = attr_mN->data_float3() + step * verts.size(); - - /* compute */ - memset(mN, 0, verts.size() * sizeof(float3)); - - for (size_t i = 0; i < triangles_size; i++) { - for (size_t j = 0; j < 3; j++) { - float3 fN = get_triangle(i).compute_normal(mP); - mN[get_triangle(i).v[j]] += fN; - } - } - - for (size_t i = 0; i < verts_size; i++) { - mN[i] = normalize(mN[i]); - if (flip) { - mN[i] = -mN[i]; - } - } - } - } - - /* subd vertex normals */ - if (!subd_attributes.find(ATTR_STD_VERTEX_NORMAL) && get_num_subd_faces()) { - /* get attributes */ - Attribute *attr_vN = subd_attributes.add(ATTR_STD_VERTEX_NORMAL); - float3 *vN = attr_vN->data_float3(); - - /* compute vertex normals */ - memset(vN, 0, verts.size() * sizeof(float3)); - - for (size_t i = 0; i < get_num_subd_faces(); i++) { - SubdFace face = get_subd_face(i); - float3 fN = face.normal(this); - - for (size_t j = 0; j < face.num_corners; j++) { - size_t corner = subd_face_corners[face.start_corner + j]; - vN[corner] += fN; - } - } - - for (size_t i = 0; i < verts_size; i++) { - vN[i] = normalize(vN[i]); - if (flip) { - vN[i] = -vN[i]; - } - } - } -} - -void Mesh::add_undisplaced() -{ - AttributeSet &attrs = (subdivision_type == SUBDIVISION_NONE) ? attributes : subd_attributes; - - /* don't compute if already there */ - if (attrs.find(ATTR_STD_POSITION_UNDISPLACED)) { - return; - } - - /* get attribute */ - Attribute *attr = attrs.add(ATTR_STD_POSITION_UNDISPLACED); - attr->flags |= ATTR_SUBDIVIDED; - - float3 *data = attr->data_float3(); - - /* copy verts */ - size_t size = attr->buffer_size(this, ATTR_PRIM_GEOMETRY); - - /* Center points for ngons aren't stored in Mesh::verts but are included in size since they will - * be calculated later, we subtract them from size here so we don't have an overflow while - * copying. - */ - size -= num_ngons * attr->data_sizeof(); - - if (size) { - memcpy(data, verts.data(), size); - } -} - -void Mesh::pack_shaders(Scene *scene, uint *tri_shader) -{ - uint shader_id = 0; - uint last_shader = -1; - bool last_smooth = false; - - size_t triangles_size = num_triangles(); - int *shader_ptr = shader.data(); - - for (size_t i = 0; i < triangles_size; i++) { - if (shader_ptr[i] != last_shader || last_smooth != smooth[i]) { - last_shader = shader_ptr[i]; - last_smooth = smooth[i]; - Shader *shader = (last_shader < used_shaders.size()) ? - static_cast<Shader *>(used_shaders[last_shader]) : - scene->default_surface; - shader_id = scene->shader_manager->get_shader_id(shader, last_smooth); - } - - tri_shader[i] = shader_id; - } -} - -void Mesh::pack_normals(float4 *vnormal) -{ - Attribute *attr_vN = attributes.find(ATTR_STD_VERTEX_NORMAL); - if (attr_vN == NULL) { - /* Happens on objects with just hair. */ - return; - } - - bool do_transform = transform_applied; - Transform ntfm = transform_normal; - - float3 *vN = attr_vN->data_float3(); - size_t verts_size = verts.size(); - - for (size_t i = 0; i < verts_size; i++) { - float3 vNi = vN[i]; - - if (do_transform) - vNi = safe_normalize(transform_direction(&ntfm, vNi)); - - vnormal[i] = make_float4(vNi.x, vNi.y, vNi.z, 0.0f); - } -} - -void Mesh::pack_verts(float4 *tri_verts, uint4 *tri_vindex, uint *tri_patch, float2 *tri_patch_uv) -{ - size_t verts_size = verts.size(); - - if (verts_size && get_num_subd_faces()) { - float2 *vert_patch_uv_ptr = vert_patch_uv.data(); - - for (size_t i = 0; i < verts_size; i++) { - tri_patch_uv[i] = vert_patch_uv_ptr[i]; - } - } - - size_t triangles_size = num_triangles(); - - for (size_t i = 0; i < triangles_size; i++) { - const Triangle t = get_triangle(i); - tri_vindex[i] = make_uint4( - t.v[0] + vert_offset, t.v[1] + vert_offset, t.v[2] + vert_offset, 3 * (prim_offset + i)); - - tri_patch[i] = (!get_num_subd_faces()) ? -1 : (triangle_patch[i] * 8 + patch_offset); - - tri_verts[i * 3] = float3_to_float4(verts[t.v[0]]); - tri_verts[i * 3 + 1] = float3_to_float4(verts[t.v[1]]); - tri_verts[i * 3 + 2] = float3_to_float4(verts[t.v[2]]); - } -} - -void Mesh::pack_patches(uint *patch_data) -{ - size_t num_faces = get_num_subd_faces(); - int ngons = 0; - - for (size_t f = 0; f < num_faces; f++) { - SubdFace face = get_subd_face(f); - - if (face.is_quad()) { - int c[4]; - memcpy(c, &subd_face_corners[face.start_corner], sizeof(int) * 4); - - *(patch_data++) = c[0] + vert_offset; - *(patch_data++) = c[1] + vert_offset; - *(patch_data++) = c[2] + vert_offset; - *(patch_data++) = c[3] + vert_offset; - - *(patch_data++) = f + face_offset; - *(patch_data++) = face.num_corners; - *(patch_data++) = face.start_corner + corner_offset; - *(patch_data++) = 0; - } - else { - for (int i = 0; i < face.num_corners; i++) { - int c[4]; - c[0] = subd_face_corners[face.start_corner + mod(i + 0, face.num_corners)]; - c[1] = subd_face_corners[face.start_corner + mod(i + 1, face.num_corners)]; - c[2] = verts.size() - num_subd_verts + ngons; - c[3] = subd_face_corners[face.start_corner + mod(i - 1, face.num_corners)]; - - *(patch_data++) = c[0] + vert_offset; - *(patch_data++) = c[1] + vert_offset; - *(patch_data++) = c[2] + vert_offset; - *(patch_data++) = c[3] + vert_offset; - - *(patch_data++) = f + face_offset; - *(patch_data++) = face.num_corners | (i << 16); - *(patch_data++) = face.start_corner + corner_offset; - *(patch_data++) = subd_face_corners.size() + ngons + corner_offset; - } - - ngons++; - } - } -} - -PrimitiveType Mesh::primitive_type() const -{ - return has_motion_blur() ? PRIMITIVE_MOTION_TRIANGLE : PRIMITIVE_TRIANGLE; -} - -CCL_NAMESPACE_END |