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Added intersection test to example-29-debugdraw.

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This commit is contained in:
Branimir Karadžić
2017-09-26 21:09:26 -07:00
parent aa567d3d72
commit f541703810
5 changed files with 155 additions and 30 deletions
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92
examples/29-debugdraw/debugdraw.cpp
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@@ -98,7 +98,8 @@ public:
{
if (!entry::processEvents(m_width, m_height, m_debug, m_reset, &m_mouseState) )
{
imguiBeginFrame(m_mouseState.m_mx
imguiBeginFrame(
m_mouseState.m_mx
, m_mouseState.m_my
, (m_mouseState.m_buttons[entry::MouseButton::Left ] ? IMGUI_MBUT_LEFT : 0)
| (m_mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
@@ -145,25 +146,36 @@ public:
bgfx::setViewRect(0, 0, 0, uint16_t(m_width), uint16_t(m_height) );
}
float zero[3] = {};
float mtxVp[16];
bx::mtxMul(mtxVp, view, proj);
float mvp[16];
float mtxInvVp[16];
bx::mtxInverse(mtxInvVp, mtxVp);
float zero[3] = {};
float eye[] = { 5.0f, 10.0f, 5.0f };
bx::mtxLookAt(view, eye, zero);
bx::mtxProj(proj, 45.0f, float(m_width)/float(m_height), 1.0f, 15.0f, bgfx::getCaps()->homogeneousDepth);
bx::mtxMul(mvp, view, proj);
bx::mtxMul(mtxVp, view, proj);
Ray ray = makeRay(
(float(m_mouseState.m_mx)/float(m_width) * 2.0f - 1.0f)
, -(float(m_mouseState.m_my)/float(m_height) * 2.0f - 1.0f)
, mtxInvVp
);
const uint32_t selected = 0xff80ffff;
ddBegin(0);
ddDrawAxis(0.0f, 0.0f, 0.0f);
ddPush();
ddSetColor(0xff00ff00);
Aabb aabb =
{
{ 5.0f, 1.0f, 1.0f },
{ 10.0f, 5.0f, 5.0f },
};
ddSetColor(intersect(ray, aabb) ? selected : 0xff00ff00);
ddDraw(aabb);
ddPop();
@@ -172,39 +184,46 @@ public:
Obb obb;
bx::mtxRotateX(obb.m_mtx, time);
ddSetWireframe(true);
ddSetColor(intersect(ray, obb) ? selected : 0xffffffff);
ddDraw(obb);
bx::mtxSRT(obb.m_mtx, 1.0f, 1.0f, 1.0f, time*0.23f, time, 0.0f, 3.0f, 0.0f, 0.0f);
toAabb(aabb, obb);
ddSetColor(0xff0000ff);
ddDraw(aabb);
ddSetWireframe(false);
ddSetColor(intersect(ray, obb) ? selected : 0xffffffff);
ddDraw(obb);
ddSetColor(0xffffffff);
bx::mtxSRT(obb.m_mtx, 1.0f, 1.0f, 1.0f, 0.0f, time, 0.0f, 3.0f, 0.0f, 0.0f);
ddSetWireframe(false);
ddDraw(obb);
ddSetTranslate(0.0f, -2.0f, 0.0f);
ddDrawGrid(Axis::Y, zero, 20, 1.0f);
ddSetTransform(NULL);
ddDrawFrustum(mvp);
ddDrawFrustum(mtxVp);
ddPush();
Sphere sphere = { { 0.0f, 5.0f, 0.0f }, 1.0f };
ddSetColor(0xfff0c0ff);
ddSetColor(intersect(ray, sphere) ? selected : 0xfff0c0ff);
ddSetWireframe(true);
ddSetLod(3);
ddDraw(sphere);
ddSetWireframe(false);
ddSetColor(0xc0ffc0ff);
sphere.m_center[0] = -2.0f;
ddSetColor(intersect(ray, sphere) ? selected : 0xc0ffc0ff);
ddSetLod(2);
ddDraw(sphere);
ddSetColor(0xa0f0ffff);
sphere.m_center[0] = -4.0f;
ddSetColor(intersect(ray, sphere) ? selected : 0xa0f0ffff);
ddSetLod(1);
ddDraw(sphere);
ddSetColor(0xffc0ff00);
sphere.m_center[0] = -6.0f;
ddSetColor(intersect(ray, sphere) ? selected : 0xffc0ff00);
ddSetLod(0);
ddDraw(sphere);
ddPop();
@@ -237,22 +256,42 @@ public:
ddPush();
ddSetSpin(time*0.3f);
{
float from[3] = { -11.0f, 4.0f, 0.0f };
float to[3] = { -13.0f, 6.0f, 1.0f };
ddDrawCone(from, to, 1.0f );
}
Cone cone =
{
{ -11.0f, 4.0f, 0.0f },
{ -13.0f, 6.0f, 1.0f },
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 );
Cylinder cylinder =
{
{ -9.0f, 2.0f, -1.0f },
{ -11.0f, 4.0f, 0.0f },
0.5f
};
ddSetColor(false
|| intersect(ray, cone)
|| intersect(ray, cylinder)
? selected
: 0xffffffff
);
ddDraw(cone);
ddDraw(cylinder);
}
ddPop();
{
float from[3] = { 0.0f, 7.0f, 0.0f };
float to[3] = { -6.0f, 7.0f, 0.0f };
ddDrawCylinder(from, to, 0.5f, true);
ddSetLod(0);
Capsule capsule =
{
{ 0.0f, 7.0f, 0.0f },
{ -6.0f, 7.0f, 0.0f },
0.5f
};
ddSetColor(intersect(ray, capsule) ? selected : 0xffffffff);
ddDraw(capsule);
}
ddPop();
@@ -274,6 +313,7 @@ public:
float up[3] = { 0.0f, 4.0f, 0.0f };
bx::vec3MulMtx(cylinder.m_end, up, mtx);
ddSetColor(intersect(ray, cylinder) ? selected : 0xffffffff);
ddDraw(cylinder);
toAabb(aabb, cylinder);