Opengl精确转换错误编译错误E0415

时间:2017-05-12 15:06:13

标签: c++ opengl glm-math

这里我想实现一个类似于glulookat()的简单OpenGL函数:

mat4 Transform::lookAt(vec3 eye, vec3 up) {
vec3 w = glm::normalize(eye);
vec3 u = glm::normalize(glm::cross(up, w));
vec3 v = glm::cross(w, u);
mat4 r = (
    u.x, u.y, u.z, 0,
    v.x, v.y, v.z, 0,
    w.x, w.y, w.z, 0,
    0, 0, 0, 1
    );

mat4 t = (
    1.0, 0.0, 0.0, -eye.x,
    0.0, 1.0, 0.0, -eye.y,
    0.0, 0.0, 1.0, -eye.z,
    0.0, 0.0, 0.0, 1.0
    );

mat4 result = glm::transpose(r)*glm::transpose(t);
return result;

}

VS2017告诉我:

Error (active)  E0415   no suitable constructor exists to convert from "double" to "glm::detail::tmat4x4<glm::core::type::precision::lowp_float>"

我知道此问题可能是由类型转换引起的,但是,在我将所有0.0修改为0后,再次出现类似的问题(从"int"到XXX没有合适的XXX)。我无法弄清楚如何解决它。有什么建议吗?

1 个答案:

答案 0 :(得分:1)

矩阵声明代码Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\ISAPI\Microsoft.SharePoint.Client.dll" Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\ISAPI\Microsoft.SharePoint.Client.Runtime.dll" 中存在语法错误 是错的。正确的语法应该是:

mat4 r = (...)

(没有=中间)