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#include <assert.h>
#include <vector>
#include "blur_effect.h"
#include "effect_chain.h"
#include "glow_effect.h"
#include "mix_effect.h"
#include "util.h"
using namespace std;
namespace movit {
GlowEffect::GlowEffect()
: blur(new BlurEffect),
cutoff(new HighlightCutoffEffect),
mix(new MixEffect)
{
CHECK(blur->set_float("radius", 20.0f));
CHECK(mix->set_float("strength_first", 1.0f));
CHECK(mix->set_float("strength_second", 1.0f));
CHECK(cutoff->set_float("cutoff", 0.2f));
}
void GlowEffect::rewrite_graph(EffectChain *graph, Node *self)
{
assert(self->incoming_links.size() == 1);
Node *input = self->incoming_links[0];
Node *blur_node = graph->add_node(blur);
Node *mix_node = graph->add_node(mix);
Node *cutoff_node = graph->add_node(cutoff);
graph->replace_receiver(self, mix_node);
graph->connect_nodes(input, cutoff_node);
graph->connect_nodes(cutoff_node, blur_node);
graph->connect_nodes(blur_node, mix_node);
graph->replace_sender(self, mix_node);
self->disabled = true;
}
bool GlowEffect::set_float(const string &key, float value) {
if (key == "blurred_mix_amount") {
return mix->set_float("strength_second", value);
}
if (key == "highlight_cutoff") {
return cutoff->set_float("cutoff", value);
}
return blur->set_float(key, value);
}
HighlightCutoffEffect::HighlightCutoffEffect()
: cutoff(0.0f)
{
register_float("cutoff", &cutoff);
}
string HighlightCutoffEffect::output_fragment_shader()
{
return read_file("highlight_cutoff_effect.frag");
}
} // namespace movit
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