C++ (Cpp) Box3f::Diag示例

示例#1

文件： trimesh_edge.cpp 项目： bobbyblues/Ren

void GetRandPlane(Box3f &bb, Plane3f &plane)
{
    Point3f planeCenter = bb.Center();
    Point3f planeDir = Point3f(-0.5f+float(rand())/RAND_MAX,-0.5f+float(rand())/RAND_MAX,-0.5f+float(rand())/RAND_MAX);
    planeDir.Normalize();

    plane.Init(planeCenter+planeDir*0.3f*bb.Diag()*float(rand())/RAND_MAX,planeDir);
}

示例#2

文件： filter_ao.cpp 项目： yuhan120483/dcba

void AmbientOcclusionPlugin::setCamera(Point3f camDir, Box3f &meshBBox)
{
	cameraDir = camDir;
	GLfloat d = (meshBBox.Diag()/2.0) * 1.1,
	        k = 0.1f;
	Point3f eye = meshBBox.Center() + camDir * (d+k);

	glViewport(0.0, 0.0, depthTexSize, depthTexSize);

	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	glOrtho(-d, d, -d, d, k, k+(2.0*d) );

	glMatrixMode(GL_MODELVIEW);
	glLoadIdentity();
	gluLookAt(eye.X(), eye.Y(), eye.Z(),
			  meshBBox.Center().X(), meshBBox.Center().Y(), meshBBox.Center().Z(),
			  0.0, 1.0, 0.0);
}

示例#3

文件： filter_sdfgpu.cpp 项目： yuhan120483/dcba

void SdfGpuPlugin::setCamera(Point3f camDir, Box3f &meshBBox)
{
    GLfloat d = (meshBBox.Diag()/2.0),
            k = 0.1f;
    Point3f eye = meshBBox.Center() + camDir * (d+k);

    mScale = 2*k+(2.0*d);

    glViewport(0.0, 0.0, mPeelingTextureSize, mPeelingTextureSize);

    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    glOrtho(-d, d, -d, d, /*k*/0, mScale );

    glMatrixMode(GL_MODELVIEW);
    glLoadIdentity();
    gluLookAt(eye.X(), eye.Y(), eye.Z(),
                      meshBBox.Center().X(), meshBBox.Center().Y(), meshBBox.Center().Z(),
                      0.0, 1.0, 0.0);
}