本文整理汇总了C++中camera::dims方法的典型用法代码示例。如果您正苦于以下问题：C++ camera::dims方法的具体用法？C++ camera::dims怎么用？C++ camera::dims使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类camera的用法示例。
在下文中一共展示了camera::dims方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: display
void skybox::display(const camera& cam, atmosphere vars)
{
glViewport(0, 0, cam.dims().x, cam.dims().y);
glDisable(GL_DEPTH_TEST);
m_shader.bind();
m_shader.set("view", cam.view(false));
m_shader.set("proj", cam.proj());
m_shader.set("extinction", vars.extinction);
float pi = 3.14159265358979323846f;
float n = 1.0003f; //regractive index of air
float N = 2.545e25f; //molecules per unit valume of air
float pn = 0.035f; //depolarization factor for air
glm::vec3 lambda = glm::vec3(1 / 650e-9f, 1 / 570e-9f, 1 / 475e-9f); // red, green & blue. Note: 650e-9 m = 650nm.
float tmp = pi*pi*(n*n - 1.0f)*(n*n - 1.0f)*(6+3*pn)/(6-7*pn)/N;
glm::vec3 betaRay = (8.0f*tmp*pi / 3) * lambda*lambda*lambda*lambda;
glm::vec3 rayleighTheta = (tmp/2) * (lambda*lambda*lambda*lambda);
m_shader.set("betaDashRay", rayleighTheta*vars.ray);
float c = (0.6544f*vars.turbidity - 0.6510f)*1e-16f; //concentration factor
tmp = 0.434f*c*(2.0f * pi)*(2.0f * pi)*0.5f;
glm::vec3 mieTheta = tmp*lambda*lambda;
m_shader.set("betaDashMie", mieTheta*vars.mie);
glm::vec3 K = glm::vec3(0.685f, 0.679f, 0.670f);
tmp = 0.434f*c*pi*(2 * pi)*(2 * pi);
glm::vec3 betaMie = tmp*K*lambda*lambda;
glm::vec3 betaRayMie = betaRay + betaMie;
glm::vec3 oneOverBetaRayMie = 1.0f / (betaRayMie);
m_shader.set("oneOverBetaRayMie", oneOverBetaRayMie);
float g = 0.8f; //Henyey Greensteins's G value
glm::vec3 HG = glm::vec3((1 - g)*(1 - g), 1 + g*g, 2 * g);
m_shader.set("gHG", HG);
//sunDir
m_shader.set("sunDir",calcSunDir(vars.timeofday));
//calculate colour
m_shader.set("Esun", vars.sunColor);
gluSphere(quad, 100, 4, 4);
glEnable(GL_DEPTH_TEST);
}