Use RenderTargets in the Sky effect

[libs/gl.git] / source / effects / sky.cpp

diff --git a/source/effects/sky.cpp b/source/effects/sky.cpp
index 8fa00cfbd4d44e884cdfadfd6268226705e039d2..c7e748794a4e3a6f6dbf58d1771000c053721154 100644 (file)
--- a/source/effects/sky.cpp
+++ b/source/effects/sky.cpp
@@ -12,8 +12,10 @@ namespace GL {
 Sky::Sky(Resources &resources, Renderable &r, const Light &s):
        Effect(r),
        sun(s),
+       transmittance_lookup(128, 64, (RENDER_COLOR, RGB16F)),
        transmittance_shprog(resources.get<Program>("_sky_transmittance.glsl.shader")),
        transmittance_lookup_dirty(true),
+       distant(256, 128, (RENDER_COLOR, RGB16F)),
        distant_shprog(resources.get<Program>("_sky_distant.glsl.shader")),
        fullscreen_mesh(resources.get<Mesh>("_fullscreen_quad.mesh")),
        backdrop_shprog(resources.get<Program>("_sky_backdrop.glsl.shader")),
@@ -21,12 +23,6 @@ Sky::Sky(Resources &resources, Renderable &r, const Light &s):
        wrap_sampler(resources.get<Sampler>("_linear_clamp_v.samp")),
        rendered(false)
 {
-       transmittance_lookup.storage(RGB16F, 128, 64, 1);
-       transmittance_fbo.attach(COLOR_ATTACHMENT0, transmittance_lookup);
-
-       distant.storage(RGB16F, 256, 128, 1);
-       distant_fbo.attach(COLOR_ATTACHMENT0, distant);
-
        shdata.uniform("n_steps", 50);
 
        set_planet(Planet::earth());
@@ -68,14 +64,14 @@ void Sky::setup_frame(Renderer &renderer)
        if(transmittance_lookup_dirty)
        {
                transmittance_lookup_dirty = false;
-               Bind bind_fbo(transmittance_fbo);
+               Bind bind_fbo(transmittance_lookup.get_framebuffer());
                renderer.set_shader_program(&transmittance_shprog, &shdata);
                fullscreen_mesh.draw(renderer);
        }
 
-       Bind bind_fbo(distant_fbo);
+       Bind bind_fbo(distant.get_framebuffer());
        renderer.set_shader_program(&distant_shprog, &shdata);
-       renderer.set_texture("transmittance_lookup", &transmittance_lookup, &sampler);
+       renderer.set_texture("transmittance_lookup", &transmittance_lookup.get_target_texture(0), &sampler);
        fullscreen_mesh.draw(renderer);
 
        renderable.setup_frame(renderer);
@@ -97,7 +93,7 @@ void Sky::render(Renderer &renderer, Tag tag) const
        Renderer::Push push(renderer);
 
        renderer.set_shader_program(&backdrop_shprog, &shdata);
-       renderer.set_texture("distant", &distant, &wrap_sampler);
+       renderer.set_texture("distant", &distant.get_target_texture(0), &wrap_sampler);
        fullscreen_mesh.draw(renderer);
 }