PassOwnPtr<DrawLooperBuilder> ShadowList::createDrawLooper(DrawLooperBuilder::ShadowAlphaMode alphaMode) const
{
OwnPtr<DrawLooperBuilder> drawLooperBuilder = DrawLooperBuilder::create();
for (size_t i = shadows().size(); i--; ) {
const ShadowData& shadow = shadows()[i];
drawLooperBuilder->addShadow(FloatSize(shadow.x(), shadow.y()), shadow.blur(), shadow.color(),
DrawLooperBuilder::ShadowRespectsTransforms, alphaMode);
}
drawLooperBuilder->addUnmodifiedContent();
return drawLooperBuilder.release();
}
PassOwnPtr<DrawLooperBuilder> ShadowList::createDrawLooper(DrawLooperBuilder::ShadowAlphaMode alphaMode, const Color& currentColor, bool isHorizontal) const
{
OwnPtr<DrawLooperBuilder> drawLooperBuilder = DrawLooperBuilder::create();
for (size_t i = shadows().size(); i--; ) {
const ShadowData& shadow = shadows()[i];
float shadowX = isHorizontal ? shadow.x() : shadow.y();
float shadowY = isHorizontal ? shadow.y() : -shadow.x();
drawLooperBuilder->addShadow(FloatSize(shadowX, shadowY), shadow.blur(), shadow.color().resolve(currentColor),
DrawLooperBuilder::ShadowRespectsTransforms, alphaMode);
}
drawLooperBuilder->addUnmodifiedContent();
return drawLooperBuilder.release();
}
// does the recursive (shadow rays & recursive/glossy rays) work
Vec3f RayTracer::TraceRay(const Ray &ray, Hit &hit, int bounce_count) const
{
hit = Hit();
bool intersect = CastRay(ray,hit,false);
Vec3f answer(args->background_color_linear);
if (intersect == true) {
const Material *m = hit.getMaterial();
assert (m != NULL);
// rays coming from the light source are set to white, don't bother to ray trace further.
if (m->getEmittedColor().Length() > 0.001) {
answer = Vec3f(1,1,1);
} else {
// ambient light
answer = args->ambient_light_linear *
m->getDiffuseColor(hit.get_s(),hit.get_t());
// Shadows
answer += shadows(ray, hit);
// Reflections
Vec3f reflectiveColor = m->getReflectiveColor();
double roughness = m->getRoughness();
if (bounce_count > 0 && reflectiveColor.Length() > MIN_COLOR_LEN) {
answer += reflectiveColor * reflections(ray, hit, bounce_count, roughness);
}
}
}
return answer;
}
colour get_the_scene(t_rt_client *rt, int x, int y)
{
t_ray ray;
t_color color;
t_obj *tmp;
t_obj *obj_result;
tmp = rt->objs;
obj_result = NULL;
ray.color = &color;
init_ray(rt, &ray, x, y);
while (rt && tmp && tmp->color)
{
assign_ray(rt, &ray, tmp);
obj_result = cast_ray(&ray, tmp, obj_result);
tmp = tmp->next;
}
if (obj_result && obj_result->color)
{
assign_ray(rt, &ray, obj_result);
obj_result->color->color = perlin_color(rt, &ray, obj_result);
lighting(&ray, obj_result, rt->spot);
shadows(rt, &ray, obj_result);
}
return (ray.color->color);
}
FloatRectOutsets ShadowList::rectOutsetsIncludingOriginal() const {
FloatRectOutsets outsets;
for (const ShadowData& shadow : shadows()) {
if (shadow.style() == Inset)
continue;
outsets.unite(shadow.rectOutsets());
}
return outsets;
}
void calc_color_alias(t_rt *img, t_ray *ray, t_obj *tmp)
{
t_obj *obj_result;
init_alias(img, ray);
obj_result = NULL;
while (img && ray && tmp && tmp->color)
{
assign_ray(img, ray, tmp);
obj_result = cast_ray(ray, tmp, obj_result);
tmp = tmp->next;
}
if (obj_result != NULL && obj_result->color)
{
assign_ray(img, ray, obj_result);
obj_result->color->color = perlin_color(img, ray, obj_result);
lighting(ray, obj_result, img->spot);
shadows(img, ray, obj_result);
}
}
void light(t_env *rt, t_figure object, t_light light)
{
t_vector n;
t_vector light_ray;
double spec;
t_vector vecs[2];
light_ray = light_rotate(rt, object, light);
if (!shadows(rt, rt->tmp_rlight, rt->inter))
{
n = calcul_normal(rt, object, light_ray);
if (rt->cel_shading)
rt->angle = calcul_cel_shading(rt->angle);
if (rt->angle > 0.0001)
{
vecs[0] = n;
vecs[1] = light_ray;
spec = specular_light(vecs, object, rt->ambient, rt->cel_shading);
color_light(rt, spec, object, light.color);
}
}
}