diff options
Diffstat (limited to 'libdimension/raytrace.c')
| -rw-r--r-- | libdimension/raytrace.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/libdimension/raytrace.c b/libdimension/raytrace.c index 2f7251f..21dfcb9 100644 --- a/libdimension/raytrace.c +++ b/libdimension/raytrace.c @@ -196,7 +196,7 @@ dmnsn_raytrace_scene_impl(dmnsn_progress *progress, dmnsn_scene *scene, dmnsn_line ray, ray_trans; dmnsn_array *intersections; dmnsn_color color; - dmnsn_sRGB sRGB; + dmnsn_CIE_Lab Lab; width = scene->canvas->x; height = scene->canvas->y; @@ -225,17 +225,23 @@ dmnsn_raytrace_scene_impl(dmnsn_progress *progress, dmnsn_scene *scene, /* Find the closest intersection */ for (j = 0; j < dmnsn_array_size(intersections); ++j) { dmnsn_array_get(intersections, j, &t_temp); - if ((t_temp < t && t_temp >= 0.0) || t < 0.0) t = t_temp; + if ((t_temp < t && t_temp >= 0.0) || t < 0.0) { + t = t_temp; + + /* Color each object differently */ + Lab.a = sin((double)(i + 2)); + Lab.b = cos((double)(i + 2)); + } } dmnsn_delete_array(intersections); } /* Shade according to distance from camera */ if (t >= 0.0) { - sRGB.R = 1.0 - (t - 2.25)/2.25; - sRGB.G = sRGB.R; - sRGB.B = sRGB.R; - color = dmnsn_color_from_sRGB(sRGB); + Lab.L = 100.0*(1.0 - (t - 2.25)/2.25); + Lab.a *= Lab.L; + Lab.b *= Lab.L; + color = dmnsn_color_from_Lab(Lab, dmnsn_whitepoint); } dmnsn_set_pixel(scene->canvas, x, y, color); |