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Code Issues 154 Wiki Activity

Vulkan ray tracing: trace only visible reflections, sun shadow from the shadow map, foliage switch and timings

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Hirek
2026-10-25 16:09:19 +01:00
parent 08f4f6ed60
commit e201c83825
6 changed files with 87 additions and 17 deletions
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9
rendering/vulkan14/vulkan14frame.cpp
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@@ -33,6 +33,8 @@ http://mozilla.org/MPL/2.0/.
#include "utilities/utilities.h"
#include "utilities/color.h"
#include <chrono>
namespace
{
@@ -1351,7 +1353,7 @@ void vulkan14_renderer::render_viewport(std::size_t const Index)
scene_ubs.shadow_fit = glm::vec4{0.f};
// the reflections: the ground below the horizon of the environment map, and the screen space ones set up for the colour pass of
// the main view only
scene_ubs.env_params = glm::vec4{Global.gfx_ambient_groundalbedo, 0.f, 0.f, 0.f};
scene_ubs.env_params = glm::vec4{Global.gfx_ambient_groundalbedo, (m_rtfoliage ? 0.f : 1.f), 0.f, 0.f};
gfx::screen_reflections::clear(scene_ubs);
if (vp.main)
@@ -1774,6 +1776,7 @@ void vulkan14_renderer::render_ray_scene(viewport_config &Viewport)
{
auto &ctx{*m_context};
auto &scene{ctx.scene};
auto const walkstart{std::chrono::steady_clock::now()};
m_rtdraws.clear();
m_rtinstances.clear();
auto const skipvehicle{m_shadowskipvehicle};
@@ -1797,9 +1800,13 @@ void vulkan14_renderer::render_ray_scene(viewport_config &Viewport)
m_renderpass = colourpass;
setup_matrices();
auto const buildstart{std::chrono::steady_clock::now()};
ctx.passes.begin_pass("ray tracing scene");
scene.raytracing->build(ctx.commands, ctx.slot, ctx.uploads.current_value(), m_framestamp, m_rtdraws, ctx.images);
ctx.passes.end_pass();
auto const buildend{std::chrono::steady_clock::now()};
m_rtwalkms += (std::chrono::duration<double, std::milli>(buildstart - walkstart).count() - m_rtwalkms) * 0.05;
m_rtbuildms += (std::chrono::duration<double, std::milli>(buildend - buildstart).count() - m_rtbuildms) * 0.05;
}
// a draw of the walk noted for the ray tracing: the chunk with its data on the gpu, the transform, the texture and the colour of the