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Differential D4531 Diff 14215 intern/cycles/blender/blender_curves.cpp

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intern/cycles/blender/blender_curves.cpp

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ParticleCurveData::ParticleCurveData() ParticleCurveData::ParticleCurveData()
{ {
} }
ParticleCurveData::~ParticleCurveData() ParticleCurveData::~ParticleCurveData()
{ {
} }
static void interp_weights(float t, float data[4])
{
/* Cardinal curve interpolation */
float t2 = t * t;
float t3 = t2 * t;
float fc = 0.71f;
data[0] = -fc * t3 + 2.0f * fc * t2 - fc * t;
data[1] = (2.0f - fc) * t3 + (fc - 3.0f) * t2 + 1.0f;
data[2] = (fc - 2.0f) * t3 + (3.0f - 2.0f * fc) * t2 + fc * t;
data[3] = fc * t3 - fc * t2;
}
static void curveinterp_v3_v3v3v3v3(float3 *p,
float3 *v1, float3 *v2, float3 *v3, float3 *v4,
const float w[4])
{
p->x = v1->x * w[0] + v2->x * w[1] + v3->x * w[2] + v4->x * w[3];
p->y = v1->y * w[0] + v2->y * w[1] + v3->y * w[2] + v4->y * w[3];
p->z = v1->z * w[0] + v2->z * w[1] + v3->z * w[2] + v4->z * w[3];
}
static float shaperadius(float shape, float root, float tip, float time) static float shaperadius(float shape, float root, float tip, float time)
{ {
assert(time >= 0.0f); assert(time >= 0.0f);
assert(time <= 1.0f); assert(time <= 1.0f);
float radius = 1.0f - time; float radius = 1.0f - time;
if(shape != 0.0f) { if(shape != 0.0f) {
if(shape < 0.0f) if(shape < 0.0f)
radius = powf(radius, 1.0f + shape); radius = powf(radius, 1.0f + shape);
else else
radius = powf(radius, 1.0f / (1.0f - shape)); radius = powf(radius, 1.0f / (1.0f - shape));
} }
return (radius * (root - tip)) + tip; return (radius * (root - tip)) + tip;
} }
/* curve functions */ /* curve functions */
static void InterpolateKeySegments(int seg,
int segno,
int key,
int curve,
float3 *keyloc,
float *time,
ParticleCurveData *CData)
{
float3 ckey_loc1 = CData->curvekey_co[key];
float3 ckey_loc2 = ckey_loc1;
float3 ckey_loc3 = CData->curvekey_co[key+1];
float3 ckey_loc4 = ckey_loc3;
if(key > CData->curve_firstkey[curve])
ckey_loc1 = CData->curvekey_co[key - 1];
if(key < CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 2)
ckey_loc4 = CData->curvekey_co[key + 2];
float time1 = CData->curvekey_time[key]/CData->curve_length[curve];
float time2 = CData->curvekey_time[key + 1]/CData->curve_length[curve];
float dfra = (time2 - time1) / (float)segno;
if(time)
*time = (dfra * seg) + time1;
float t[4];
interp_weights((float)seg / (float)segno, t);
if(keyloc)
curveinterp_v3_v3v3v3v3(keyloc, &ckey_loc1, &ckey_loc2, &ckey_loc3, &ckey_loc4, t);
}
static bool ObtainCacheParticleData(Mesh *mesh, static bool ObtainCacheParticleData(Mesh *mesh,
BL::Mesh *b_mesh, BL::Mesh *b_mesh,
BL::Object *b_ob, BL::Object *b_ob,
ParticleCurveData *CData, ParticleCurveData *CData,
bool background) bool background)
{ {
int curvenum = 0; int curvenum = 0;
int keyno = 0; int keyno = 0;
▲ Show 20 Lines • Show All 196 Lines • ▼ Show 20 Lines if((b_mod->type() == b_mod->type_PARTICLE_SYSTEM) && (background ? b_mod->show_render() : b_mod->show_viewport())) {
} }
} }
} }
} }
return true; return true;
} }
static void ExportCurveTrianglePlanes(Mesh *mesh, ParticleCurveData *CData,
float3 RotCam, bool is_ortho)
{
int vertexno = mesh->verts.size();
int vertexindex = vertexno;
int numverts = 0, numtris = 0;
/* compute and reserve size of arrays */
for(int sys = 0; sys < CData->psys_firstcurve.size(); sys++) {
for(int curve = CData->psys_firstcurve[sys]; curve < CData->psys_firstcurve[sys] + CData->psys_curvenum[sys]; curve++) {
numverts += 2 + (CData->curve_keynum[curve] - 1)*2;
numtris += (CData->curve_keynum[curve] - 1)*2;
}
}
mesh->reserve_mesh(mesh->verts.size() + numverts, mesh->num_triangles() + numtris);
/* actually export */
for(int sys = 0; sys < CData->psys_firstcurve.size(); sys++) {
for(int curve = CData->psys_firstcurve[sys]; curve < CData->psys_firstcurve[sys] + CData->psys_curvenum[sys]; curve++) {
float3 xbasis;
float3 v1;
float time = 0.0f;
float3 ickey_loc = CData->curvekey_co[CData->curve_firstkey[curve]];
float radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], CData->psys_tipradius[sys], 0.0f);
v1 = CData->curvekey_co[CData->curve_firstkey[curve] + 1] - CData->curvekey_co[CData->curve_firstkey[curve]];
if(is_ortho)
xbasis = normalize(cross(RotCam, v1));
else
xbasis = normalize(cross(RotCam - ickey_loc, v1));
float3 ickey_loc_shfl = ickey_loc - radius * xbasis;
float3 ickey_loc_shfr = ickey_loc + radius * xbasis;
mesh->add_vertex(ickey_loc_shfl);
mesh->add_vertex(ickey_loc_shfr);
vertexindex += 2;
for(int curvekey = CData->curve_firstkey[curve] + 1; curvekey < CData->curve_firstkey[curve] + CData->curve_keynum[curve]; curvekey++) {
ickey_loc = CData->curvekey_co[curvekey];
if(curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 1)
v1 = CData->curvekey_co[curvekey] - CData->curvekey_co[max(curvekey - 1, CData->curve_firstkey[curve])];
else
v1 = CData->curvekey_co[curvekey + 1] - CData->curvekey_co[curvekey - 1];
time = CData->curvekey_time[curvekey]/CData->curve_length[curve];
radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], CData->psys_tipradius[sys], time);
if(curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 1)
radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], CData->psys_tipradius[sys], 0.95f);
if(CData->psys_closetip[sys] && (curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 1))
radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], 0.0f, 0.95f);
if(is_ortho)
xbasis = normalize(cross(RotCam, v1));
else
xbasis = normalize(cross(RotCam - ickey_loc, v1));
float3 ickey_loc_shfl = ickey_loc - radius * xbasis;
float3 ickey_loc_shfr = ickey_loc + radius * xbasis;
mesh->add_vertex(ickey_loc_shfl);
mesh->add_vertex(ickey_loc_shfr);
mesh->add_triangle(vertexindex-2, vertexindex, vertexindex-1, CData->psys_shader[sys], true);
mesh->add_triangle(vertexindex+1, vertexindex-1, vertexindex, CData->psys_shader[sys], true);
vertexindex += 2;
}
}
}
mesh->resize_mesh(mesh->verts.size(), mesh->num_triangles());
mesh->attributes.remove(ATTR_STD_VERTEX_NORMAL);
mesh->attributes.remove(ATTR_STD_FACE_NORMAL);
mesh->add_face_normals();
mesh->add_vertex_normals();
mesh->attributes.remove(ATTR_STD_FACE_NORMAL);
/* texture coords still needed */
}
static void ExportCurveTriangleGeometry(Mesh *mesh,
ParticleCurveData *CData,
int resolution)
{
int vertexno = mesh->verts.size();
int vertexindex = vertexno;
int numverts = 0, numtris = 0;
/* compute and reserve size of arrays */
for(int sys = 0; sys < CData->psys_firstcurve.size(); sys++) {
for(int curve = CData->psys_firstcurve[sys]; curve < CData->psys_firstcurve[sys] + CData->psys_curvenum[sys]; curve++) {
numverts += (CData->curve_keynum[curve] - 1)*resolution + resolution;
numtris += (CData->curve_keynum[curve] - 1)*2*resolution;
}
}
mesh->reserve_mesh(mesh->verts.size() + numverts, mesh->num_triangles() + numtris);
/* actually export */
for(int sys = 0; sys < CData->psys_firstcurve.size(); sys++) {
for(int curve = CData->psys_firstcurve[sys]; curve < CData->psys_firstcurve[sys] + CData->psys_curvenum[sys]; curve++) {
float3 firstxbasis = cross(make_float3(1.0f,0.0f,0.0f),CData->curvekey_co[CData->curve_firstkey[curve]+1] - CData->curvekey_co[CData->curve_firstkey[curve]]);
if(!is_zero(firstxbasis))
firstxbasis = normalize(firstxbasis);
else
firstxbasis = normalize(cross(make_float3(0.0f,1.0f,0.0f),CData->curvekey_co[CData->curve_firstkey[curve]+1] - CData->curvekey_co[CData->curve_firstkey[curve]]));
for(int curvekey = CData->curve_firstkey[curve]; curvekey < CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 1; curvekey++) {
float3 xbasis = firstxbasis;
float3 v1;
float3 v2;
if(curvekey == CData->curve_firstkey[curve]) {
v1 = CData->curvekey_co[min(curvekey+2,CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 1)] - CData->curvekey_co[curvekey+1];
v2 = CData->curvekey_co[curvekey+1] - CData->curvekey_co[curvekey];
}
else if(curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 1) {
v1 = CData->curvekey_co[curvekey] - CData->curvekey_co[curvekey-1];
v2 = CData->curvekey_co[curvekey-1] - CData->curvekey_co[max(curvekey-2,CData->curve_firstkey[curve])];
}
else {
v1 = CData->curvekey_co[curvekey+1] - CData->curvekey_co[curvekey];
v2 = CData->curvekey_co[curvekey] - CData->curvekey_co[curvekey-1];
}
xbasis = cross(v1, v2);
if(len_squared(xbasis) >= 0.05f * len_squared(v1) * len_squared(v2)) {
firstxbasis = normalize(xbasis);
break;
}
}
for(int curvekey = CData->curve_firstkey[curve]; curvekey < CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 1; curvekey++) {
int subv = 1;
float3 xbasis;
float3 ybasis;
float3 v1;
float3 v2;
if(curvekey == CData->curve_firstkey[curve]) {
subv = 0;
v1 = CData->curvekey_co[min(curvekey+2,CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 1)] - CData->curvekey_co[curvekey+1];
v2 = CData->curvekey_co[curvekey+1] - CData->curvekey_co[curvekey];
}
else if(curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 1) {
v1 = CData->curvekey_co[curvekey] - CData->curvekey_co[curvekey-1];
v2 = CData->curvekey_co[curvekey-1] - CData->curvekey_co[max(curvekey-2,CData->curve_firstkey[curve])];
}
else {
v1 = CData->curvekey_co[curvekey+1] - CData->curvekey_co[curvekey];
v2 = CData->curvekey_co[curvekey] - CData->curvekey_co[curvekey-1];
}
xbasis = cross(v1, v2);
if(len_squared(xbasis) >= 0.05f * len_squared(v1) * len_squared(v2)) {
xbasis = normalize(xbasis);
firstxbasis = xbasis;
}
else
xbasis = firstxbasis;
ybasis = normalize(cross(xbasis, v2));
for(; subv <= 1; subv++) {
float3 ickey_loc = make_float3(0.0f,0.0f,0.0f);
float time = 0.0f;
InterpolateKeySegments(subv, 1, curvekey, curve, &ickey_loc, &time, CData);
float radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], CData->psys_tipradius[sys], time);
if((curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 2) && (subv == 1))
radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], CData->psys_tipradius[sys], 0.95f);
if(CData->psys_closetip[sys] && (subv == 1) && (curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 2))
radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], 0.0f, 0.95f);
float angle = M_2PI_F / (float)resolution;
for(int section = 0; section < resolution; section++) {
float3 ickey_loc_shf = ickey_loc + radius * (cosf(angle * section) * xbasis + sinf(angle * section) * ybasis);
mesh->add_vertex(ickey_loc_shf);
}
if(subv != 0) {
for(int section = 0; section < resolution - 1; section++) {
mesh->add_triangle(vertexindex - resolution + section, vertexindex + section, vertexindex - resolution + section + 1, CData->psys_shader[sys], true);
mesh->add_triangle(vertexindex + section + 1, vertexindex - resolution + section + 1, vertexindex + section, CData->psys_shader[sys], true);
}
mesh->add_triangle(vertexindex-1, vertexindex + resolution - 1, vertexindex - resolution, CData->psys_shader[sys], true);
mesh->add_triangle(vertexindex, vertexindex - resolution , vertexindex + resolution - 1, CData->psys_shader[sys], true);
}
vertexindex += resolution;
}
}
}
}
mesh->resize_mesh(mesh->verts.size(), mesh->num_triangles());
mesh->attributes.remove(ATTR_STD_VERTEX_NORMAL);
mesh->attributes.remove(ATTR_STD_FACE_NORMAL);
mesh->add_face_normals();
mesh->add_vertex_normals();
mesh->attributes.remove(ATTR_STD_FACE_NORMAL);
/* texture coords still needed */
}
static void ExportCurveSegments(Scene *scene, Mesh *mesh, ParticleCurveData *CData) static void ExportCurveSegments(Scene *scene, Mesh *mesh, ParticleCurveData *CData)
{ {
int num_keys = 0; int num_keys = 0;
int num_curves = 0; int num_curves = 0;
if(mesh->num_curves()) if(mesh->num_curves())
return; return;
▲ Show 20 Lines • Show All 202 Lines • ▼ Show 20 Lines else if(motion_step > 0) {
mP[key] = float3_to_float4(mesh->curve_keys[key]); mP[key] = float3_to_float4(mesh->curve_keys[key]);
mP[key].w = mesh->curve_radius[key]; mP[key].w = mesh->curve_radius[key];
} }
} }
} }
} }
} }
static void ExportCurveTriangleUV(ParticleCurveData *CData,
int vert_offset,
int resol,
float3 *uvdata)
{
if(uvdata == NULL)
return;
float time = 0.0f;
float prevtime = 0.0f;
int vertexindex = vert_offset;
for(int sys = 0; sys < CData->psys_firstcurve.size(); sys++) {
for(int curve = CData->psys_firstcurve[sys]; curve < CData->psys_firstcurve[sys] + CData->psys_curvenum[sys]; curve++) {
for(int curvekey = CData->curve_firstkey[curve]; curvekey < CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 1; curvekey++) {
const float curve_time = CData->curvekey_time[curvekey];
const float curve_length = CData->curve_length[curve];
time = (curve_length > 0.0f) ? curve_time / curve_length : 0.0f;
for(int section = 0; section < resol; section++) {
uvdata[vertexindex] = CData->curve_uv[curve];
uvdata[vertexindex].z = prevtime;
vertexindex++;
uvdata[vertexindex] = CData->curve_uv[curve];
uvdata[vertexindex].z = time;
vertexindex++;
uvdata[vertexindex] = CData->curve_uv[curve];
uvdata[vertexindex].z = prevtime;
vertexindex++;
uvdata[vertexindex] = CData->curve_uv[curve];
uvdata[vertexindex].z = time;
vertexindex++;
uvdata[vertexindex] = CData->curve_uv[curve];
uvdata[vertexindex].z = prevtime;
vertexindex++;
uvdata[vertexindex] = CData->curve_uv[curve];
uvdata[vertexindex].z = time;
vertexindex++;
}
prevtime = time;
}
}
}
}
static void ExportCurveTriangleVcol(ParticleCurveData *CData,
int vert_offset,
int resol,
uchar4 *cdata)
{
if(cdata == NULL)
return;
int vertexindex = vert_offset;
for(int sys = 0; sys < CData->psys_firstcurve.size(); sys++) {
for(int curve = CData->psys_firstcurve[sys]; curve < CData->psys_firstcurve[sys] + CData->psys_curvenum[sys]; curve++) {
for(int curvekey = CData->curve_firstkey[curve]; curvekey < CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 1; curvekey++) {
for(int section = 0; section < resol; section++) {
/* Encode vertex color using the sRGB curve. */
cdata[vertexindex] = color_float_to_byte(color_srgb_to_linear_v3(CData->curve_vcol[curve]));
vertexindex++;
cdata[vertexindex] = color_float_to_byte(color_srgb_to_linear_v3(CData->curve_vcol[curve]));
vertexindex++;
cdata[vertexindex] = color_float_to_byte(color_srgb_to_linear_v3(CData->curve_vcol[curve]));
vertexindex++;
cdata[vertexindex] = color_float_to_byte(color_srgb_to_linear_v3(CData->curve_vcol[curve]));
vertexindex++;
cdata[vertexindex] = color_float_to_byte(color_srgb_to_linear_v3(CData->curve_vcol[curve]));
vertexindex++;
cdata[vertexindex] = color_float_to_byte(color_srgb_to_linear_v3(CData->curve_vcol[curve]));
vertexindex++;
}
}
}
}
}
/* Hair Curve Sync */ /* Hair Curve Sync */
void BlenderSync::sync_curve_settings() void BlenderSync::sync_curve_settings()
{ {
PointerRNA csscene = RNA_pointer_get(&b_scene.ptr, "cycles_curves"); PointerRNA csscene = RNA_pointer_get(&b_scene.ptr, "cycles_curves");
CurveSystemManager *curve_system_manager = scene->curve_system_manager; CurveSystemManager *curve_system_manager = scene->curve_system_manager;
CurveSystemManager prev_curve_system_manager = *curve_system_manager; CurveSystemManager prev_curve_system_manager = *curve_system_manager;
curve_system_manager->use_curves = get_boolean(csscene, "use_curves"); curve_system_manager->use_curves = get_boolean(csscene, "use_curves");
curve_system_manager->minimum_width = get_float(csscene, "minimum_width"); curve_system_manager->minimum_width = get_float(csscene, "minimum_width");
curve_system_manager->maximum_width = get_float(csscene, "maximum_width"); curve_system_manager->maximum_width = get_float(csscene, "maximum_width");
curve_system_manager->primitive = curve_system_manager->primitive =
(CurvePrimitiveType)get_enum(csscene, (CurvePrimitiveType)get_enum(csscene,
"primitive", "primitive",
CURVE_NUM_PRIMITIVE_TYPES, CURVE_NUM_PRIMITIVE_TYPES,
CURVE_LINE_SEGMENTS); CURVE_LINE_SEGMENTS);
curve_system_manager->curve_shape = curve_system_manager->curve_shape =
(CurveShapeType)get_enum(csscene, (CurveShapeType)get_enum(csscene,
"shape", "shape",
CURVE_NUM_SHAPE_TYPES, CURVE_NUM_SHAPE_TYPES,
CURVE_THICK); CURVE_THICK);
curve_system_manager->resolution = get_int(csscene, "resolution");
curve_system_manager->subdivisions = get_int(csscene, "subdivisions"); curve_system_manager->subdivisions = get_int(csscene, "subdivisions");
curve_system_manager->use_backfacing = !get_boolean(csscene, "cull_backfacing"); curve_system_manager->use_backfacing = !get_boolean(csscene, "cull_backfacing");
/* Triangles */
if(curve_system_manager->primitive == CURVE_TRIANGLES) {
/* camera facing planes */
if(curve_system_manager->curve_shape == CURVE_RIBBON) {
curve_system_manager->triangle_method = CURVE_CAMERA_TRIANGLES;
curve_system_manager->resolution = 1;
}
else if(curve_system_manager->curve_shape == CURVE_THICK) {
curve_system_manager->triangle_method = CURVE_TESSELATED_TRIANGLES;
}
}
/* Line Segments */ /* Line Segments */
else if(curve_system_manager->primitive == CURVE_LINE_SEGMENTS) { if(curve_system_manager->primitive == CURVE_LINE_SEGMENTS) {
if(curve_system_manager->curve_shape == CURVE_RIBBON) { if(curve_system_manager->curve_shape == CURVE_RIBBON) {
/* tangent shading */ /* tangent shading */
curve_system_manager->line_method = CURVE_UNCORRECTED; curve_system_manager->line_method = CURVE_UNCORRECTED;
curve_system_manager->use_encasing = true; curve_system_manager->use_encasing = true;
curve_system_manager->use_backfacing = false; curve_system_manager->use_backfacing = false;
curve_system_manager->use_tangent_normal_geometry = true; curve_system_manager->use_tangent_normal_geometry = true;
} }
else if(curve_system_manager->curve_shape == CURVE_THICK) { else if(curve_system_manager->curve_shape == CURVE_THICK) {
▲ Show 20 Lines • Show All 50 Lines • ▼ Show 20 Linesvoid BlenderSync::sync_curves(Mesh *mesh,
const bool use_curves = scene->curve_system_manager->use_curves; const bool use_curves = scene->curve_system_manager->use_curves;
if(!(use_curves && b_ob.mode() != b_ob.mode_PARTICLE_EDIT)) { if(!(use_curves && b_ob.mode() != b_ob.mode_PARTICLE_EDIT)) {
if(!motion) if(!motion)
mesh->compute_bounds(); mesh->compute_bounds();
return; return;
} }
const int primitive = scene->curve_system_manager->primitive;
const int triangle_method = scene->curve_system_manager->triangle_method;
const int resolution = scene->curve_system_manager->resolution;
const size_t vert_num = mesh->verts.size();
const size_t tri_num = mesh->num_triangles();
int used_res = 1;
/* extract particle hair data - should be combined with connecting to mesh later*/ /* extract particle hair data - should be combined with connecting to mesh later*/
ParticleCurveData CData; ParticleCurveData CData;
ObtainCacheParticleData(mesh, &b_mesh, &b_ob, &CData, !preview); ObtainCacheParticleData(mesh, &b_mesh, &b_ob, &CData, !preview);
/* add hair geometry to mesh */ /* add hair geometry to mesh */
if(primitive == CURVE_TRIANGLES) {
if(triangle_method == CURVE_CAMERA_TRIANGLES) {
/* obtain camera parameters */
float3 RotCam;
Camera *camera = scene->camera;
Transform &ctfm = camera->matrix;
if(camera->type == CAMERA_ORTHOGRAPHIC) {
RotCam = -make_float3(ctfm.x.z, ctfm.y.z, ctfm.z.z);
}
else {
Transform tfm = get_transform(b_ob.matrix_world());
Transform itfm = transform_quick_inverse(tfm);
RotCam = transform_point(&itfm, make_float3(ctfm.x.w,
ctfm.y.w,
ctfm.z.w));
}
bool is_ortho = camera->type == CAMERA_ORTHOGRAPHIC;
ExportCurveTrianglePlanes(mesh, &CData, RotCam, is_ortho);
}
else {
ExportCurveTriangleGeometry(mesh, &CData, resolution);
used_res = resolution;
}
}
else {
if(motion) if(motion)
ExportCurveSegmentsMotion(mesh, &CData, motion_step); ExportCurveSegmentsMotion(mesh, &CData, motion_step);
else else
ExportCurveSegments(scene, mesh, &CData); ExportCurveSegments(scene, mesh, &CData);
}
/* generated coordinates from first key. we should ideally get this from /* generated coordinates from first key. we should ideally get this from
* blender to handle deforming objects */ * blender to handle deforming objects */
if(!motion) { if(!motion) {
if(mesh->need_attribute(scene, ATTR_STD_GENERATED)) { if(mesh->need_attribute(scene, ATTR_STD_GENERATED)) {
float3 loc, size; float3 loc, size;
mesh_texture_space(b_mesh, loc, size); mesh_texture_space(b_mesh, loc, size);
if(primitive == CURVE_TRIANGLES) {
Attribute *attr_generated = mesh->attributes.add(ATTR_STD_GENERATED);
float3 *generated = attr_generated->data_float3();
for(size_t i = vert_num; i < mesh->verts.size(); i++)
generated[i] = mesh->verts[i]*size - loc;
}
else {
Attribute *attr_generated = mesh->curve_attributes.add(ATTR_STD_GENERATED); Attribute *attr_generated = mesh->curve_attributes.add(ATTR_STD_GENERATED);
float3 *generated = attr_generated->data_float3(); float3 *generated = attr_generated->data_float3();
for(size_t i = 0; i < mesh->num_curves(); i++) { for(size_t i = 0; i < mesh->num_curves(); i++) {
float3 co = mesh->curve_keys[mesh->get_curve(i).first_key]; float3 co = mesh->curve_keys[mesh->get_curve(i).first_key];
generated[i] = co*size - loc; generated[i] = co*size - loc;
} }
} }
} }
}
/* create vertex color attributes */ /* create vertex color attributes */
if(!motion) { if(!motion) {
BL::Mesh::vertex_colors_iterator l; BL::Mesh::vertex_colors_iterator l;
int vcol_num = 0; int vcol_num = 0;
for(b_mesh.vertex_colors.begin(l); l != b_mesh.vertex_colors.end(); ++l, vcol_num++) { for(b_mesh.vertex_colors.begin(l); l != b_mesh.vertex_colors.end(); ++l, vcol_num++) {
if(!mesh->need_attribute(scene, ustring(l->name().c_str()))) if(!mesh->need_attribute(scene, ustring(l->name().c_str())))
continue; continue;
ObtainCacheParticleVcol(mesh, &b_mesh, &b_ob, &CData, !preview, vcol_num); ObtainCacheParticleVcol(mesh, &b_mesh, &b_ob, &CData, !preview, vcol_num);
if(primitive == CURVE_TRIANGLES) {
Attribute *attr_vcol = mesh->attributes.add(
ustring(l->name().c_str()), TypeDesc::TypeColor, ATTR_ELEMENT_CORNER_BYTE);
uchar4 *cdata = attr_vcol->data_uchar4();
ExportCurveTriangleVcol(&CData, tri_num * 3, used_res, cdata);
}
else {
Attribute *attr_vcol = mesh->curve_attributes.add( Attribute *attr_vcol = mesh->curve_attributes.add(
ustring(l->name().c_str()), TypeDesc::TypeColor, ATTR_ELEMENT_CURVE); ustring(l->name().c_str()), TypeDesc::TypeColor, ATTR_ELEMENT_CURVE);
float3 *fdata = attr_vcol->data_float3(); float3 *fdata = attr_vcol->data_float3();
if(fdata) { if(fdata) {
size_t i = 0; size_t i = 0;
/* Encode vertex color using the sRGB curve. */ /* Encode vertex color using the sRGB curve. */
for(size_t curve = 0; curve < CData.curve_vcol.size(); curve++) { for(size_t curve = 0; curve < CData.curve_vcol.size(); curve++) {
fdata[i++] = color_srgb_to_linear_v3(CData.curve_vcol[curve]); fdata[i++] = color_srgb_to_linear_v3(CData.curve_vcol[curve]);
} }
} }
} }
} }
}
/* create UV attributes */ /* create UV attributes */
if(!motion) { if(!motion) {
BL::Mesh::uv_layers_iterator l; BL::Mesh::uv_layers_iterator l;
int uv_num = 0; int uv_num = 0;
for(b_mesh.uv_layers.begin(l); l != b_mesh.uv_layers.end(); ++l, uv_num++) { for(b_mesh.uv_layers.begin(l); l != b_mesh.uv_layers.end(); ++l, uv_num++) {
bool active_render = l->active_render(); bool active_render = l->active_render();
AttributeStandard std = (active_render)? ATTR_STD_UV: ATTR_STD_NONE; AttributeStandard std = (active_render)? ATTR_STD_UV: ATTR_STD_NONE;
ustring name = ustring(l->name().c_str()); ustring name = ustring(l->name().c_str());
/* UV map */ /* UV map */
if(mesh->need_attribute(scene, name) || mesh->need_attribute(scene, std)) { if(mesh->need_attribute(scene, name) || mesh->need_attribute(scene, std)) {
Attribute *attr_uv; Attribute *attr_uv;
ObtainCacheParticleUV(mesh, &b_mesh, &b_ob, &CData, !preview, uv_num); ObtainCacheParticleUV(mesh, &b_mesh, &b_ob, &CData, !preview, uv_num);
if(primitive == CURVE_TRIANGLES) {
if(active_render)
attr_uv = mesh->attributes.add(std, name);
else
attr_uv = mesh->attributes.add(name, TypeDesc::TypePoint, ATTR_ELEMENT_CORNER);
float3 *uv = attr_uv->data_float3();
ExportCurveTriangleUV(&CData, tri_num * 3, used_res, uv);
}
else {
if(active_render) if(active_render)
attr_uv = mesh->curve_attributes.add(std, name); attr_uv = mesh->curve_attributes.add(std, name);
else else
attr_uv = mesh->curve_attributes.add(name, TypeDesc::TypePoint, ATTR_ELEMENT_CURVE); attr_uv = mesh->curve_attributes.add(name, TypeDesc::TypePoint, ATTR_ELEMENT_CURVE);
float3 *uv = attr_uv->data_float3(); float3 *uv = attr_uv->data_float3();
if(uv) { if(uv) {
size_t i = 0; size_t i = 0;
for(size_t curve = 0; curve < CData.curve_uv.size(); curve++) { for(size_t curve = 0; curve < CData.curve_uv.size(); curve++) {
uv[i++] = CData.curve_uv[curve]; uv[i++] = CData.curve_uv[curve];
} }
} }
} }
} }
} }
}
mesh->compute_bounds(); mesh->compute_bounds();
} }
CCL_NAMESPACE_END CCL_NAMESPACE_END