blender
/
blender
129
397
Fork 571
Code Issues 6.2k Pull Requests 753 Projects 19 Wiki Activity

Merge branch 'master' into blender2.8

This commit is contained in:
Sergey Sharybin 2018-11-23 14:41:21 +01:00
parent 859d5e5699 874f12480f
commit d891c8f1f8
2 changed files with 67 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

87
intern/cycles/blender/blender_curves.cpp
View File

@ -619,6 +619,41 @@ static void ExportCurveSegments(Scene *scene, Mesh *mesh, ParticleCurveData *CDa
}
}
static float4 CurveSegmentMotionCV(ParticleCurveData *CData, int sys, int curve, int curvekey)
{
float3 ickey_loc = CData->curvekey_co[curvekey];
float time = CData->curvekey_time[curvekey]/CData->curve_length[curve];
float radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], CData->psys_tipradius[sys], time);
if(CData->psys_closetip[sys] && (curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 1))
radius = 0.0f;
/* curve motion keys store both position and radius in float4 */
float4 mP = float3_to_float4(ickey_loc);
mP.w = radius;
return mP;
}
static float4 LerpCurveSegmentMotionCV(ParticleCurveData *CData, int sys, int curve, float step)
{
step = clamp(step, 0.0f, 1.0f);
float curve_key_f = step * (CData->curve_keynum[curve] - 1);
int curvekey = (int)floorf(curve_key_f);
float remainder = curve_key_f - curvekey;
if(remainder == 0.0f) {
return CurveSegmentMotionCV(CData, sys, curve, curvekey);
}
int curvekey2 = curvekey + 1;
if(curvekey2 >= (CData->curve_keynum[curve] - 1)) {
curvekey2 = (CData->curve_keynum[curve] - 1);
curvekey = curvekey2 - 1;
}
float4 mP = CurveSegmentMotionCV(CData, sys, curve, curvekey);
float4 mP2 = CurveSegmentMotionCV(CData, sys, curve, curvekey2);
return lerp(mP, mP2, remainder);
}
static void ExportCurveSegmentsMotion(Mesh *mesh, ParticleCurveData *CData, int motion_step)
{
VLOG(1) << "Exporting curve motion segments for mesh " << mesh->name
@ -640,6 +675,7 @@ static void ExportCurveSegmentsMotion(Mesh *mesh, ParticleCurveData *CData, int
float4 *mP = attr_mP->data_float4() + motion_step*numkeys;
bool have_motion = false;
int i = 0;
int num_curves = 0;
for(int sys = 0; sys < CData->psys_firstcurve.size(); sys++) {
if(CData->psys_curvenum[sys] == 0)
@ -649,30 +685,39 @@ static void ExportCurveSegmentsMotion(Mesh *mesh, ParticleCurveData *CData, int
if(CData->curve_keynum[curve] <= 1 || CData->curve_length[curve] == 0.0f)
continue;
for(int curvekey = CData->curve_firstkey[curve]; curvekey < CData->curve_firstkey[curve] + CData->curve_keynum[curve]; curvekey++) {
if(i < mesh->curve_keys.size()) {
float3 ickey_loc = CData->curvekey_co[curvekey];
float time = CData->curvekey_time[curvekey]/CData->curve_length[curve];
float radius = shaperadius(CData->psys_shape[sys], CData->psys_rootradius[sys], CData->psys_tipradius[sys], time);
/* Curve lengths may not match! Curves can be clipped. */
int curve_key_end = (num_curves+1 < (int)mesh->curve_first_key.size() ? mesh->curve_first_key[num_curves+1] : (int)mesh->curve_keys.size());
int center_curve_len = curve_key_end - mesh->curve_first_key[num_curves];
int diff = CData->curve_keynum[curve] - center_curve_len;
if(CData->psys_closetip[sys] && (curvekey == CData->curve_firstkey[curve] + CData->curve_keynum[curve] - 1))
radius = 0.0f;
/* curve motion keys store both position and radius in float4 */
mP[i] = float3_to_float4(ickey_loc);
mP[i].w = radius;
/* unlike mesh coordinates, these tend to be slightly different
* between frames due to particle transforms into/out of object
* space, so we use an epsilon to detect actual changes */
float4 curve_key = float3_to_float4(mesh->curve_keys[i]);
curve_key.w = mesh->curve_radius[i];
if(len_squared(mP[i] - curve_key) > 1e-5f*1e-5f)
have_motion = true;
if(diff == 0) {
for(int curvekey = CData->curve_firstkey[curve]; curvekey < CData->curve_firstkey[curve] + CData->curve_keynum[curve]; curvekey++) {
if(i < mesh->curve_keys.size()) {
mP[i] = CurveSegmentMotionCV(CData, sys, curve, curvekey);
if(!have_motion) {
/* unlike mesh coordinates, these tend to be slightly different
* between frames due to particle transforms into/out of object
* space, so we use an epsilon to detect actual changes */
float4 curve_key = float3_to_float4(mesh->curve_keys[i]);
curve_key.w = mesh->curve_radius[i];
if(len_squared(mP[i] - curve_key) > 1e-5f*1e-5f)
have_motion = true;
}
}
i++;
}
i++;
}
else {
/* Number of keys has changed. Genereate an interpolated version to preserve motion blur. */
float step = 0;
float step_size = 1.0f / (center_curve_len-1);
for(; i < curve_key_end; i++) {
mP[i] = LerpCurveSegmentMotionCV(CData, sys, curve, step);
step = i * step_size;
}
have_motion = true;
}
num_curves++;
}
}

1
intern/cycles/render/nodes.h
View File

@ -1031,6 +1031,7 @@ public:
float3 value;
protected:
using ShaderNode::constant_fold;
void constant_fold(const ConstantFolder& folder, ShaderInput *value_in);
void compile(SVMCompiler& compiler, int type, ShaderInput *value_in, ShaderOutput *value_out);
void compile(OSLCompiler& compiler, const char *name);