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Code Issues 154 Wiki Activity

Cast shadows of the cab lamp from the cab in the GL 4.6 renderer

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Hirek
2026-10-16 02:43:27 +02:00
parent 4d3a401aae
commit 06d7b9e9f0
15 changed files with 568 additions and 8 deletions
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1
gl/glsl_common.cpp
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@@ -56,6 +56,7 @@ void gl::glsl_common_setup()
"#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" +
"#define LOCAL_SHADOW_TEX " + std::to_string(LOCAL_SHADOW_TEX) + "\n" +
R"STRING(
const uint LIGHT_SPOT = 0U;
const uint LIGHT_POINT = 1U;

6
gl/ubo.h
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@@ -58,6 +58,8 @@ namespace gl
const size_t ENVMAP_GGX_GROUP_SIZE = 8;
// sky-view table of the atmosphere (sky_atmosphere.frag). past the units the texture cache keeps track of, bound directly
const size_t SKY_VIEW_TEX = MAX_TEXTURES + HELPER_TEXTURES + 0;
// cube shadow maps of the lamps (cube map array, depth compared; opengl46_local_shadows). bound directly, like the one above
const size_t LOCAL_SHADOW_TEX = MAX_TEXTURES + HELPER_TEXTURES + 1;
struct scene_ubs
{
@@ -136,6 +138,10 @@ namespace gl
float intensity;
float ambient;
// HEADLIGHTS: view space to the space of the beam texture, and the weights of its channels.
// SPOT and POINT (lamps): view space to the space of the cube shadow map of the lamp (origin at the lamp), and
// x: layer of the cube map array the map is in, below 0 when the lamp has no shadows; y: near plane of the map;
// z: size of a texel of the map one metre from the lamp; w: radius of the filter, in texels
glm::mat4 headlight_projection;
glm::vec4 headlight_weights;
};