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-rw-r--r--graphics/asymptote/bezierpatch.cc5
1 files changed, 4 insertions, 1 deletions
diff --git a/graphics/asymptote/bezierpatch.cc b/graphics/asymptote/bezierpatch.cc
index 8f7c607c2a..2549e75934 100644
--- a/graphics/asymptote/bezierpatch.cc
+++ b/graphics/asymptote/bezierpatch.cc
@@ -820,9 +820,12 @@ void transform(const std::vector<VertexData>& b)
// ybuffer.resize(n);
zbuffer.resize(n);
+ double Tz0=gl::dView[2];
+ double Tz1=gl::dView[6];
+ double Tz2=gl::dView[10];
for(unsigned i=0; i < n; ++i) {
const GLfloat *v=b[i].position;
- zbuffer[i]=TransformZ(triple(v[0],v[1],v[2]),gl::dprojView);
+ zbuffer[i]=Tz0*v[0]+Tz1*v[1]+Tz2*v[2];
}
}