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Code Issues 157 Wiki Activity

Add the optional Radius, ShadeSelf, CastShadows and SoftFalloff of FreeSpotLight and make FalloffAngle 360 a point light

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Hirek
2026-10-28 16:18:03 +01:00
parent 413cebed9c
commit c4e23932bf
25 changed files with 327 additions and 72 deletions
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8
gl/ubo.h
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@@ -124,7 +124,8 @@ namespace gl
// x: how many lamps and headlights a pixel traces the rays to (0: only the sun), yzw unused
glm::vec4 contact_shadow_lamps;
// 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
// a point outside the map of its cascade goes to the next cascade whose map holds it. y: the near plane of the cube shadow
// map of a scenery lamp being drawn by the vulkan renderer (shadowcube.vert), 0 otherwise. zw 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
@@ -250,12 +251,15 @@ namespace gl
float quadratic;
float intensity;
// SPOT and POINT (lamps): the radius of the sphere the light shines from, metres (0: a point), below 0 when its light falls
// off as 1 / (d^2 + r^2) (the soft falloff of blender), see lamp_falloff() of common.glsl
float ambient;
// HEADLIGHTS: view space to the space of the beam texture, and the weights of its channels; w: 1 + the shadow map of the
// headlights (scene_ubs::headlight_shadow), 0 when they have none.
// 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;
// x: layer of the cube map array the map is in, below 0 when the lamp has no shadow map, y then 1 when it casts no shadows at
// all (no contact shadows either); 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. the map is in the array of
// the scenery lamps (LOCAL_SHADOW_LAMPS_TEX) when linear is 1, in the one of the cab lamp (LOCAL_SHADOW_TEX) otherwise
glm::mat4 headlight_projection;