https://github.com/CaffeineViking/vkhr/blob/master/share/shaders/strands/strand.frag#L45
vec3 eye_normal = normalize(fs_in.position.xyz - camera.position);
eye_normal is as input for kajiya_kay, and the result specular highlights have some difference.
if using vec3 eye_normal = normalize(fs_in.position.xyz - camera.position);
else if use 'vec3 eye_normal = -normalize(fs_in.position.xyz - camera.position);`
But the eye_nomal of other implementations I find is vec3 eye_normal = normalize(fs_in.position.xyz - camera.position); from pos (of model) to eye, can you give me some hints?
PS: I disable occlusion and shadow when capturing the screenshots
https://github.com/CaffeineViking/vkhr/blob/master/share/shaders/strands/strand.frag#L45
vec3 eye_normal = normalize(fs_in.position.xyz - camera.position);eye_normal is as input for kajiya_kay, and the result specular highlights have some difference.
if using
vec3 eye_normal = normalize(fs_in.position.xyz - camera.position);else if use 'vec3 eye_normal = -normalize(fs_in.position.xyz - camera.position);`
But the
eye_nomalof other implementations I find isvec3 eye_normal = normalize(fs_in.position.xyz - camera.position);from pos (of model) to eye, can you give me some hints?PS: I disable occlusion and shadow when capturing the screenshots