glm :: vec2不允许操作

Question

In using GLM, I have been able to use operations on vectors and matrices (+, -, *, /). For some reason in the following line of code, it will not let me do any operations:

glm::vec2 fixedPos = position + dimensions/2;  // <- Error is on the '/'

("position" and "dimensions" are both of type "const glm::vec2")

Error: no operator "/" matches these operands; operand types are: const glm::vec2 / int

(replacing "/" with any other math operator will result in the same error)

I find it annoying and strange why this is not working. The error is saying my syntax is incorrect, when what it asks for is what I put! If you see the issue, please post the answer below. Thanks for any help!

Answer 1

Try this:

glm::vec2 fixedPos = position + dimensions / 2.0f;

vec2 is actually a typedef to highp_vec2 which is a typedef to tvec2<float, highp> (cf. glm/detail/type_vec.hpp )