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-rw-r--r--libdimension/raytrace.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/libdimension/raytrace.c b/libdimension/raytrace.c
index 87e0b8f..deb0080 100644
--- a/libdimension/raytrace.c
+++ b/libdimension/raytrace.c
@@ -273,7 +273,7 @@ dmnsn_raytrace_light_ray(const dmnsn_raytrace_state *state,
dmnsn_raytrace_pigment(&shadow_state);
if ((state->scene->quality & DMNSN_RENDER_TRANSLUCENCY)
- && (shadow_state.pigment.filter || shadow_state.pigment.trans))
+ && shadow_state.pigment.trans >= dmnsn_epsilon)
{
color = dmnsn_filter_light(color, shadow_state.pigment);
shadow_ray.x0 = dmnsn_line_point(shadow_ray, shadow_caster.t);
@@ -328,7 +328,8 @@ dmnsn_raytrace_lighting(dmnsn_raytrace_state *state)
state->additional = dmnsn_color_add(specular, state->additional);
} else {
state->diffuse = state->pigment;
- state->diffuse.filter = state->diffuse.trans = 0.0;
+ state->diffuse.trans = 0.0;
+ state->diffuse.filter = 0.0;
}
}
}
@@ -355,8 +356,8 @@ dmnsn_raytrace_reflection(const dmnsn_raytrace_state *state)
state, finish, reflection_fn, dmnsn_black,
rec, state->pigment, state->reflected, state->intersection->normal
);
- reflected.filter = 0.0;
reflected.trans = 0.0;
+ reflected.filter = 0.0;
}
return reflected;
@@ -366,7 +367,7 @@ dmnsn_raytrace_reflection(const dmnsn_raytrace_state *state)
static void
dmnsn_raytrace_translucency(dmnsn_raytrace_state *state)
{
- if (state->pigment.filter || state->pigment.trans) {
+ if (state->pigment.trans >= dmnsn_epsilon) {
dmnsn_line trans_ray = dmnsn_new_line(state->r, state->intersection->ray.n);
trans_ray = dmnsn_line_add_epsilon(trans_ray);