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Code Issues 154 Wiki Activity

Add sky light, physical atmosphere, auto exposure and bloom to the GL 4.6 renderer

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Hirek
2026-10-15 22:16:41 +02:00
parent ea0dba6dae
commit ce725c3d62
37 changed files with 2342 additions and 32 deletions
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30
gl/glsl_common.cpp
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@@ -28,6 +28,25 @@ void gl::glsl_common_setup()
"#define CLUSTER_RANGE_SSBO_BINDING " + std::to_string(CLUSTER_RANGE_SSBO_BINDING) + "\n" +
"#define CLUSTER_INDEX_SSBO_BINDING " + std::to_string(CLUSTER_INDEX_SSBO_BINDING) + "\n" +
"#define CLUSTER_COUNTER_SSBO_BINDING " + std::to_string(CLUSTER_COUNTER_SSBO_BINDING) + "\n" +
"#define ENVMAP_GGX_LEVELS " + std::to_string(ENVMAP_GGX_LEVELS) + "\n" +
"#define ENVMAP_GGX_ROUGHNESS_MIN " + std::to_string(ENVMAP_GGX_ROUGHNESS_MIN) + "\n" +
"#define ENVMAP_GGX_GROUP_SIZE " + std::to_string(ENVMAP_GGX_GROUP_SIZE) + "\n" +
"#define SKY_SSBO_BINDING " + std::to_string(SKY_SSBO_BINDING) + "\n" +
"#define EXPOSURE_SSBO_BINDING " + std::to_string(EXPOSURE_SSBO_BINDING) + "\n" +
"#define EXPOSURE_HISTOGRAM_BINS " + std::to_string(EXPOSURE_HISTOGRAM_BINS) + "\n" +
"#define EXPOSURE_HISTOGRAM_GROUP_SIZE " + std::to_string(EXPOSURE_HISTOGRAM_GROUP_SIZE) + "\n" +
"#define ATMOSPHERE_UBO_BINDING " + std::to_string(ATMOSPHERE_UBO_BINDING) + "\n" +
"#define ATMOSPHERE_RESULT_SSBO_BINDING " + std::to_string(ATMOSPHERE_RESULT_SSBO_BINDING) + "\n" +
"#define ATMOSPHERE_TRANSMITTANCE_WIDTH " + std::to_string(ATMOSPHERE_TRANSMITTANCE_WIDTH) + "\n" +
"#define ATMOSPHERE_TRANSMITTANCE_HEIGHT " + std::to_string(ATMOSPHERE_TRANSMITTANCE_HEIGHT) + "\n" +
"#define ATMOSPHERE_MULTISCATTERING_SIZE " + std::to_string(ATMOSPHERE_MULTISCATTERING_SIZE) + "\n" +
"#define ATMOSPHERE_SKYVIEW_WIDTH " + std::to_string(ATMOSPHERE_SKYVIEW_WIDTH) + "\n" +
"#define ATMOSPHERE_SKYVIEW_HEIGHT " + std::to_string(ATMOSPHERE_SKYVIEW_HEIGHT) + "\n" +
"#define ATMOSPHERE_AMBIENT_GROUP_SIZE " + std::to_string(ATMOSPHERE_AMBIENT_GROUP_SIZE) + "\n" +
"#define ATMOSPHERE_TRANSMITTANCE_UNIT " + std::to_string(ATMOSPHERE_TRANSMITTANCE_UNIT) + "\n" +
"#define ATMOSPHERE_MULTISCATTERING_UNIT " + std::to_string(ATMOSPHERE_MULTISCATTERING_UNIT) + "\n" +
"#define ATMOSPHERE_SKYVIEW_UNIT " + std::to_string(ATMOSPHERE_SKYVIEW_UNIT) + "\n" +
"#define SKY_VIEW_TEX " + std::to_string(SKY_VIEW_TEX) + "\n" +
R"STRING(
const uint LIGHT_SPOT = 0U;
const uint LIGHT_POINT = 1U;
@@ -68,9 +87,20 @@ void gl::glsl_common_setup()
uint lights_count;
// 1 if the shading takes the lights from the list of the cluster of a fragment, see cluster_ubo
uint lights_clustered;
// scale of the directional part of the sky ambient light, see sky_ssbo
float sky_ambient_factor;
// 1 if rough reflections come from the prefiltered environment map
uint env_ggx;
light_s lights[];
};
// directional part of the sky ambient light: real spherical harmonics (bands 1 and 2, band 0 is ambient) of the light
// a surface facing a world space direction gets, in units of ambient. see gl::sky_data
layout(std430, binding = SKY_SSBO_BINDING) readonly buffer sky_ssbo
{
vec4 sky_ambient_sh[9];
};
#endif
// light clusters, see gl/cluster_grid.h