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EEVEE-Next: Shadow: Add LOD system to directional clipmap shadows #120031

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Clément Foucault merged 16 commits from fclem/blender:eevee-next-shadow-directional-lod into main 2024-03-29 16:23:06 +01:00
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1 changed files with 4 additions and 5 deletions
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9
source/blender/draw/engines/eevee_next/shaders/eevee_shadow_tilemap_amend_comp.glsl
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@ -70,11 +70,10 @@ void main()
/* Align center of both LODs. */
tile_prev.lod_offset -= uvec2(SHADOW_TILEMAP_RES / 2);
/* Add the offset relative to the source LOD. */
tile_prev.lod_offset += bitfieldExtract(base_offset_pos, lod, int(tile_prev.lod)) -
bitfieldExtract(base_offset_neg, lod, int(tile_prev.lod));
/* Wrap to valid range. This should be modulo the size of a source LOD page but it has
* the same effect. */
tile_prev.lod_offset &= ~(~0 << uint(SHADOW_TILEMAP_MAX_CLIPMAP_LOD));
tile_prev.lod_offset += uvec2(bitfieldExtract(base_offset_pos, lod, int(tile_prev.lod)) -
bitfieldExtract(base_offset_neg, lod, int(tile_prev.lod)));
/* Wrap to valid range. */
tile_prev.lod_offset &= ~(~0u << tile_prev.lod);
tile_prev_packed = shadow_sampling_tile_pack(tile_prev);
/* Replace the missing page with the one from the lower LOD. */