Add loading support for AmbientOcclusion

[libs/gl.git] / source / ambientocclusion.cpp

diff --git a/source/ambientocclusion.cpp b/source/ambientocclusion.cpp
index af1008b4230cf3283c2fe3362c6815f71d6c078c..91e10ad7a4f33f4325cc12762fe65a5e2e347148 100644 (file)
--- a/source/ambientocclusion.cpp
+++ b/source/ambientocclusion.cpp
@@ -17,6 +17,7 @@ AmbientOcclusion::AmbientOcclusion(unsigned w, unsigned h, float):
        combine_shader("ambientocclusion_combine.glsl"),
        quad(get_fullscreen_quad())
 {
+       occlude_target.set_texture_filter(LINEAR);
        texturing.attach(2, occlude_target.get_target_texture(RENDER_COLOR));
 
        unsigned seed = 1;
@@ -51,7 +52,7 @@ AmbientOcclusion::AmbientOcclusion(unsigned w, unsigned h, float):
 float AmbientOcclusion::random(unsigned &seed)
 {
        static const unsigned modulus = (1U<<31)-1;
-       seed = (seed*48271)%modulus;  // minstd
+       seed = (static_cast<UInt64>(seed)*48271)%modulus;  // minstd
        return static_cast<float>(seed)/(modulus-1);
 }
 
@@ -107,5 +108,30 @@ void AmbientOcclusion::render(Renderer &renderer, const Texture2D &color, const
        quad.draw(renderer);
 }
 
+
+AmbientOcclusion::Template::Template():
+       n_samples(16),
+       occlusion_radius(0.5f),
+       darkness(1.0f)
+{ }
+
+AmbientOcclusion *AmbientOcclusion::Template::create(unsigned width, unsigned height) const
+{
+       RefPtr<AmbientOcclusion> ao = new AmbientOcclusion(width/size_divisor, height/size_divisor);
+       ao->set_n_samples(n_samples);
+       ao->set_occlusion_radius(occlusion_radius);
+       ao->set_darkness(darkness);
+       return ao.release();
+}
+
+
+AmbientOcclusion::Template::Loader::Loader(Template &t):
+       DataFile::DerivedObjectLoader<Template, PostProcessor::Template::Loader>(t)
+{
+       add("darkness", &Template::darkness);
+       add("occlusion_radius", &Template::occlusion_radius);
+       add("samples", &Template::n_samples);
+}
+
 } // namespace GL
 } // namespace Msp