add edit clear submenu/clear hard_edges, fix tessy gl segv, mask toolgui layout,...

[goodguy/cinelerra.git] / cinelerra-5.1 / cinelerra / playback3d.C

diff --git a/cinelerra-5.1/cinelerra/playback3d.C b/cinelerra-5.1/cinelerra/playback3d.C
index 9b4aea7352d2f1299bc4b344655248667357a404..1c7ddc75701e8fbcbebc5779aebe4e32e3bc6028 100644 (file)
--- a/cinelerra-5.1/cinelerra/playback3d.C
+++ b/cinelerra-5.1/cinelerra/playback3d.C
@@ -1224,10 +1224,12 @@ static void combineData(GLdouble coords[3],
        vertex[1] = coords[1];
        vertex[2] = coords[2];
        for( int i=3; i<6; ++i ) {
        vertex[1] = coords[1];
        vertex[2] = coords[2];
        for( int i=3; i<6; ++i ) {

-               vertex[i] = weight[0] * vertex_data[0][i] +
-                       weight[1] * vertex_data[1][i] +
-                       weight[2] * vertex_data[2][i] +
-                       weight[3] * vertex_data[3][i];
+               GLdouble v = 0;
+               for( int k=0; k<4; ++k ) {
+                       if( !weight[k] || !vertex_data[k] ) continue;
+                       v += weight[k] * vertex_data[k][i];
+               }
+               vertex[i] = v;

        }
        *outData = vertex;
 }
        }
        *outData = vertex;
 }