AuroraMiddleware/OpenSubdiv
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Fix accumulation of stencil derivatives

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- make sure not to skip CVs that have 0.0 weight because derivative may be contributing (non 0 tangent weight)

fixes #364
This commit is contained in:
manuelk 2014-12-04 16:15:13 -08:00
parent ff223e4aaf
commit e330b4513f
1 changed files with 2 additions and 2 deletions
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4
opensubdiv/far/protoStencil.h
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@ -228,7 +228,7 @@ public:
void PushBackVertex(Index protoStencil,
Index vert, float weight, float tan1Weight, float tan2Weight) {
assert(weight!=0.0f);
assert(weight!=0.0f or tan1Weight!=0.0f or tan2Weight!=0.0f);
unsigned char & size = this->_sizes[protoStencil];
Index idx = protoStencil*this->_maxsize;
if (size < (this->_maxsize-1)) {
@ -458,7 +458,7 @@ public:
void AddWithWeight(Stencil const & src,
float weight, float tan1Weight, float tan2Weight) {
if(weight==0.0f) {
if(weight==0.0f and tan1Weight==0.0f and tan1Weight==0.0f) {
return;
}