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Code Issues 150 Wiki Activity

Replace cubemap scenery reflections with SSR, add Vulkan ray traced reflections

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Hirek
2026-10-25 13:54:49 +01:00
parent 89f11895fc
commit f20b1a3071
45 changed files with 2725 additions and 174 deletions
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1
gl/glsl_common.cpp
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@@ -86,6 +86,7 @@ void gl::glsl_common_setup()
"#define CLOUD_COVERAGE_TEX " + std::to_string(CLOUD_COVERAGE_TEX) + "\n" +
"#define CLOUD_HISTORY_TEX " + std::to_string(CLOUD_HISTORY_TEX) + "\n" +
"#define SCENE_DEPTH_TEX " + std::to_string(SCENE_DEPTH_TEX) + "\n" +
"#define SSR_HISTORY_TEX " + std::to_string(SSR_HISTORY_TEX) + "\n" +
"#define WEATHER_UBO_BINDING " + std::to_string(WEATHER_UBO_BINDING) + "\n" +
"#define WEATHER_SCRATCH_SSBO_BINDING " + std::to_string(WEATHER_SCRATCH_SSBO_BINDING) + "\n" +
"#define MAX_CLOUD_LAYERS " + std::to_string(MAX_CLOUD_LAYERS) + "\n" +

22
gl/ubo.h
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@@ -78,6 +78,9 @@ namespace gl
// the depth of the opaque scene of the main view drawn before its colour, resolved, for the contact shadows (light_common.glsl).
// bound directly, like the ones above
const size_t SCENE_DEPTH_TEX = MAX_TEXTURES + HELPER_TEXTURES + 11;
// the image of the last frame of the main view with its mipmaps, which the screen space reflections take their colour from
// (light_common.glsl, gl::scene_ubs::ssr_params). bound directly, like the ones above
const size_t SSR_HISTORY_TEX = MAX_TEXTURES + HELPER_TEXTURES + 12;
struct scene_ubs
{
@@ -104,9 +107,26 @@ namespace gl
// x: 1 when the cascades of the sun shadows are fitted to the depth of the view (gfx.shadow.sdsm, opengl46_shadow_fit):
// a point outside the map of its cascade goes to the next cascade whose map holds it. yzw unused
glm::vec4 shadow_fit;
// the screen space reflections (gfx.ssr, gfx::screen_reflections), set only for the colour pass of the main view, zero
// elsewhere: the view space of the pass to the clip space of the frame whose image the history (SSR_HISTORY_TEX) holds, for
// the world standing still and for the cab with its vehicle, which moves with the camera
glm::mat4 ssr_reprojection;
glm::mat4 ssr_reprojection_cab;
// the view space of the pass to the box around the vehicle of the cab, -1 .. 1 inside: what is in it is taken to the history
// with ssr_reprojection_cab
glm::mat4 ssr_cab_box;
// x: steps of a ray (0: off), y: the longest ray, metres, z: the roughest surface they're traced for, w: the noise of the
// frame, 0 .. 1
glm::vec4 ssr_params;
// x: the last level of the mipmaps of the history, y: 1 with the box of the cab, z: 1 when the ray tracing fills in what the
// screen doesn't hold (the vulkan renderer, gfx.raytracing), w: the longest traced ray, metres
glm::vec4 ssr_params2;
// the reflection of the surroundings the screen space reflections and the ray tracing don't find, for every pass: x: albedo
// of the ground below the horizon of the environment map (gfx.ambient.groundalbedo), yzw unused
glm::vec4 env_params;
};
static_assert(sizeof(scene_ubs) == 448 + 80 * MAX_HEADLIGHT_SHADOWS, "bad size of ubs");
static_assert(sizeof(scene_ubs) == 688 + 80 * MAX_HEADLIGHT_SHADOWS, "bad size of ubs");
const size_t MAX_PARAMS = 3;