If(gl_LightSource.spotCutoff gl_LightSource.spotCosCutoff) LightDistance = length(lightDirection) įloat linearAttenuation = (0.02 / SCALE_FACTOR) * lightDistance įloat quadraticAttenuation = (0.0 / SCALE_FACTOR) * lightDistance * lightDistance Īttenuation = 1.0 / (constantAttenuation + linearAttenuation + quadraticAttenuation) SpecularFactor = pow(specularFactor, shininess) Ĭolor += ambient * gl_LightSource.ambient Ĭolor += diffuseFactor * diffuse * gl_LightSource.diffuse Ĭolor += specularFactor * specular * gl_LightSource.specular

SpecularFactor = max(0.0, dot(normalDirection, half_vector)) Half_vector = normalize(lightDirNorm + eyeVector) ĭiffuseFactor = max(0.0, dot(normalDirection, lightDirNorm)) LightDirNorm = normalize(lightDirection) Vec3 normalDirection = normalize(vertexNormal) LightDirection = vec3(gl_ - (gl_ModelViewMatrix * gl_Vertex).xyz) VertexNormal = gl_NormalMatrix * gl_Normal The thing is, I'm pretty sure I'm not doing these two things, but apparently I'm wrong it's just that I can't find the bug.

I've looked it up and I've seen that it's a common mistake when mixing reference systems in the shader and/or when setting the light's position before moving the camera.

If now I rotate the camera, the spot moves around for example, here I looked down (I didn't move at all, just looked down) and it seemed at my feet: I'm experimenting with a spotlight, this is how it looks like (it's the spot in the center): I implemented a simple shader for the lighting it kind of works, but the light seems to move when the camera rotates (and only when it rotates).

Company of heroes 2 rotate camera