From 3b9a4861d6937a66b03791b5b497e47c52189a7d Mon Sep 17 00:00:00 2001 From: Vito Caputo Date: Wed, 28 Feb 2018 20:24:30 -0800 Subject: ray: implement distance-based light brightness --- src/modules/ray/ray_render.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'src/modules/ray/ray_render.c') diff --git a/src/modules/ray/ray_render.c b/src/modules/ray/ray_render.c index 4ca168f..8b930f6 100644 --- a/src/modules/ray/ray_render.c +++ b/src/modules/ray/ray_render.c @@ -88,6 +88,7 @@ static inline ray_color_t shade_intersection(ray_render_t *render, ray_render_ob if (lvec_normal_dot > 0) { #if 1 float rvec_lvec_dot = ray_3f_dot(&ray->direction, &lvec); + float intensity = light->light.brightness * (1.0 / (ldist * ldist)); ray_color_t diffuse; diffuse = ray_3f_mult_scalar(&surface.color, lvec_normal_dot); @@ -102,6 +103,8 @@ static inline ray_color_t shade_intersection(ray_render_t *render, ray_render_ob specular = ray_3f_mult_scalar(&specular, surface.specular); color = ray_3f_add(&color, &specular); } + + color = ray_3f_mult_scalar(&color, intensity); #else ray_color_t diffuse; -- cgit v1.2.3