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debugdraw: Added cylinder.

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This commit is contained in:
Branimir Karadžić 2016-04-06 22:21:46 -07:00
parent 3d81ae8219
commit 931c6ed0f6
3 changed files with 78 additions and 5 deletions
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16
examples/29-debugdraw/debugdraw.cpp
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@ -187,12 +187,18 @@ class DebugDrawApp : public entry::AppI
ddPop();
ddPush();
{
ddSetLod(UINT8_MAX);
float from[3] = { -11.0f, 4.0f, 0.0f };
float to[3] = { -13.0f, 6.0f, 1.0f };
ddDrawCone(from, to, 0.5f );
}
{
float from[3] = { -11.0f, 4.0f, 0.0f };
float to[3] = { -13.0f, 6.0f, 1.0f };
ddDrawCone(from, to, 1.0f );
}
{
float from[3] = { -9.0f, 2.0f, -1.0f };
float to[3] = { -11.0f, 4.0f, 0.0f };
ddDrawCylinder(from, to, 0.5f );
}
ddPop();
ddDrawOrb(-11.0f, 0.0f, 0.0f, 1.0f);

64
examples/common/debugdraw/debugdraw.cpp
View File

@ -1085,6 +1085,65 @@ struct DebugDraw
drawCone( (const float*)_from, (const float*)_to, _radius, _weight);
}
void drawCylinder(const float* _from, const float* _to, float _radius, float _weight = 0.0f)
{
const Attrib& attrib = m_attrib[m_stack];
const uint32_t num = getCircleLod(attrib.m_lod);
const float step = bx::pi * 2.0f / num;
_weight = bx::fclamp(_weight, 0.0f, 2.0f);
float pos[3];
float tmp0[3];
float tmp1[3];
bx::vec3Sub(tmp0, _from, _to);
Plane plane;
plane.m_dist = 0.0f;
bx::vec3Norm(plane.m_normal, tmp0);
float udir[3];
float vdir[3];
calcPlaneUv(plane, udir, vdir);
float xy0[2];
float xy1[2];
circle(xy0, 0.0f);
squircle(xy1, 0.0f);
float pos1[3];
bx::vec3Mul(pos, udir, bx::flerp(xy0[0], xy1[0], _weight)*_radius);
bx::vec3Mul(tmp0, vdir, bx::flerp(xy0[1], xy1[1], _weight)*_radius);
bx::vec3Add(tmp1, pos, tmp0);
bx::vec3Add(pos, tmp1, _from);
bx::vec3Add(pos1, tmp1, _to);
for (uint32_t ii = 1; ii < num+1; ++ii)
{
float angle = step * ii;
circle(xy0, angle);
squircle(xy1, angle);
moveTo(pos); lineTo(pos1);
moveTo(pos);
bx::vec3Mul(pos, udir, bx::flerp(xy0[0], xy1[0], _weight)*_radius);
bx::vec3Mul(tmp0, vdir, bx::flerp(xy0[1], xy1[1], _weight)*_radius);
bx::vec3Add(tmp1, pos, tmp0);
bx::vec3Add(pos, tmp1, _from);
lineTo(pos);
moveTo(pos1);
bx::vec3Add(pos1, tmp1, _to);
lineTo(pos1);
}
}
void drawCylinder(const void* _from, const void* _to, float _radius, float _weight = 0.0f)
{
drawCylinder( (const float*)_from, (const float*)_to, _radius, _weight);
}
void drawAxis(float _x, float _y, float _z, float _len, Axis::Enum _highlight)
{
push();
@ -1554,6 +1613,11 @@ void ddDrawCone(const void* _from, const void* _to, float _radius, float _weight
s_dd.drawCone(_from, _to, _radius, _weight);
}
void ddDrawCylinder(const void* _from, const void* _to, float _radius, float _weight)
{
s_dd.drawCylinder(_from, _to, _radius, _weight);
}
void ddDrawAxis(float _x, float _y, float _z, float _len, Axis::Enum _hightlight)
{
s_dd.drawAxis(_x, _y, _z, _len, _hightlight);

3
examples/common/debugdraw/debugdraw.h
View File

@ -105,6 +105,9 @@ void ddDrawCircle(Axis::Enum _axis, float _x, float _y, float _z, float _radius,
///
void ddDrawCone(const void* _from, const void* _to, float _radius, float _weight = 0.0f);
///
void ddDrawCylinder(const void* _from, const void* _to, float _radius, float _weight = 0.0f);
///
void ddDrawAxis(float _x, float _y, float _z, float _len = 1.0f, Axis::Enum _highlight = Axis::Count);