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Deferred renderer: support a background generation callback

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This commit is contained in:
Nikita Lisitsa 2020-12-13 23:20:41 +03:00
parent 57e8aa39af
commit f10f301443
2 changed files with 19 additions and 0 deletions
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2
libs/gfx/include/psemek/gfx/renderer/deferred.hpp
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@ -10,6 +10,7 @@
#include <psemek/geom/box.hpp> #include <psemek/geom/box.hpp>
#include <psemek/util/pimpl.hpp> #include <psemek/util/pimpl.hpp>
#include <psemek/util/function.hpp>
namespace psemek::gfx namespace psemek::gfx
{ {
@ -95,6 +96,7 @@ namespace psemek::gfx
geom::camera const * camera; geom::camera const * camera;
std::optional<color_3f> clear_color; std::optional<color_3f> clear_color;
util::function<void()> background_generator;
color_3f ambient; color_3f ambient;
std::vector<directional_light> directional_lights; std::vector<directional_light> directional_lights;

17
libs/gfx/source/renderer/deferred.cpp
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@ -808,6 +808,7 @@ void main()
gfx::framebuffer g_framebuffer; gfx::framebuffer g_framebuffer;
gfx::framebuffer occlusion_framebuffer; gfx::framebuffer occlusion_framebuffer;
gfx::framebuffer bg_framebuffer;
gfx::texture_2d g_buffer_texture[4]; gfx::texture_2d g_buffer_texture[4];
gfx::texture_2d g_buffer_depth; gfx::texture_2d g_buffer_depth;
@ -1183,8 +1184,11 @@ void main()
impl().g_framebuffer.depth(impl().g_buffer_depth); impl().g_framebuffer.depth(impl().g_buffer_depth);
impl().occlusion_framebuffer.depth(impl().g_buffer_depth); impl().occlusion_framebuffer.depth(impl().g_buffer_depth);
impl().bg_framebuffer.color(impl().g_buffer_texture[1]);
impl().g_framebuffer.assert_complete(); impl().g_framebuffer.assert_complete();
impl().occlusion_framebuffer.assert_complete(); impl().occlusion_framebuffer.assert_complete();
impl().bg_framebuffer.assert_complete();
impl().transparent_framebuffer.color(impl().g_buffer_texture[1]); impl().transparent_framebuffer.color(impl().g_buffer_texture[1]);
impl().transparent_framebuffer.depth(impl().g_buffer_depth); impl().transparent_framebuffer.depth(impl().g_buffer_depth);
@ -1307,6 +1311,19 @@ void main()
gl::ClearBufferfv(gl::COLOR, 1, buffer_1_clear); gl::ClearBufferfv(gl::COLOR, 1, buffer_1_clear);
if (opts.background_generator)
{
impl().bg_framebuffer.bind();
gl::Enable(gl::DEPTH_TEST);
gl::DepthFunc(gl::LEQUAL);
gl::Disable(gl::BLEND);
opts.background_generator();
impl().g_framebuffer.bind();
}
gl::ClearDepth(1.f); gl::ClearDepth(1.f);
gl::Clear(gl::DEPTH_BUFFER_BIT); gl::Clear(gl::DEPTH_BUFFER_BIT);