Does someone have a Frustum culling function for C++ OpenGL that is complete and works?

[john_connor]

i’ve shown you here how it can be done

How do I find if something is within my field of view

// bsphere position (in view space) vec3 center = boundingsphere.xyz; float radius = boundingsphere.w; vec3 position = (modelview * vec4(center, 1)).xyz; float A = 1.0f / tan(FieldOfView * AspectRatio / 2.0f); float B = 1.0f / tan(FieldOfView / 2.0f); // camera frustum face normals vec3 normal_L = normalize(vec3(-A, 0, 1)); vec3 normal_R = normalize(vec3(+A, 0, 1)); vec3 normal_T = normalize(vec3(0, +B, 1)); vec3 normal_B = normalize(vec3(0, -B, 1));…

you need to start easy …
checking if a sphere is colliding with a plane OR on a certain side of a plane is relatively easy
getting the 6 planes equations for the view frustum of a camera is also not too hard
merge these 2 steps, and you’ve got it …

once you have that, you can start to replace the sphere with an AABB / OBB