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Improved Torus codes

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This commit is contained in:
hyzboy 2024-07-31 00:17:23 +08:00
parent f7a0e97e49
commit 2137725bd2
2 changed files with 4 additions and 5 deletions
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5
example/Gizmo/Gizmo3DRotate.cpp
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@ -44,13 +44,12 @@ bool InitGizmoRotateStaticMesh()
tm.SetScale(10.0f); tm.SetScale(10.0f);
tm.SetRotation(AXIS::Z,90);
root_node->CreateSubNode(tm,torus[0]); root_node->CreateSubNode(tm,torus[0]);
tm.ClearRotation(); tm.SetRotation(AXIS::Z,90);
root_node->CreateSubNode(tm,torus[1]); root_node->CreateSubNode(tm,torus[1]);
tm.SetRotation(AXIS::X,90); tm.SetRotation(AXIS::Y,90);
root_node->CreateSubNode(tm,torus[2]); root_node->CreateSubNode(tm,torus[2]);
} }

4
src/SceneGraph/InlineGeometry.cpp
View File

@ -793,8 +793,8 @@ namespace hgl
sin2PIt = sin(2.0f * HGL_PI * t); sin2PIt = sin(2.0f * HGL_PI * t);
// generate vertex and stores it in the right position // generate vertex and stores it in the right position
*vp = (centerRadius + torusRadius * cos2PIt) * cos2PIs; ++vp;
*vp = torusRadius * sin2PIt; ++vp; *vp = torusRadius * sin2PIt; ++vp;
*vp =-(centerRadius + torusRadius * cos2PIt) * cos2PIs; ++vp;
*vp = (centerRadius + torusRadius * cos2PIt) * sin2PIs; ++vp; *vp = (centerRadius + torusRadius * cos2PIt) * sin2PIs; ++vp;
if(np) if(np)
@ -802,8 +802,8 @@ namespace hgl
// generate normal and stores it in the right position // generate normal and stores it in the right position
// NOTE: cos (2PIx) = cos (x) and sin (2PIx) = sin (x) so, we can use this formula // NOTE: cos (2PIx) = cos (x) and sin (2PIx) = sin (x) so, we can use this formula
// normal = {cos(2PIs)cos(2PIt) , sin(2PIs)cos(2PIt) ,sin(2PIt)} // normal = {cos(2PIs)cos(2PIt) , sin(2PIs)cos(2PIt) ,sin(2PIt)}
*np = cos2PIs * cos2PIt; ++np;
*np = sin2PIt; ++np; *np = sin2PIt; ++np;
*np = -cos2PIs * cos2PIt; ++np;
*np = sin2PIs * cos2PIt; ++np; *np = sin2PIs * cos2PIt; ++np;
} }