From 5022ec800b096e9a85d6ef07ca4b652abb8625ee Mon Sep 17 00:00:00 2001 From: Hop311 Date: Fri, 28 Apr 2023 19:08:58 +0100 Subject: Terrain channel for provinces + generated minimap --- game/src/GameSession/ProvinceIndexSampler.gdshaderinc | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 game/src/GameSession/ProvinceIndexSampler.gdshaderinc (limited to 'game/src/GameSession/ProvinceIndexSampler.gdshaderinc') diff --git a/game/src/GameSession/ProvinceIndexSampler.gdshaderinc b/game/src/GameSession/ProvinceIndexSampler.gdshaderinc new file mode 100644 index 0000000..65f73d8 --- /dev/null +++ b/game/src/GameSession/ProvinceIndexSampler.gdshaderinc @@ -0,0 +1,18 @@ + +// Province shape texture +uniform sampler2DArray province_shape_tex : repeat_enable, filter_nearest; +// Province shape subdivisions +uniform vec2 province_shape_subdivisions; + +uvec3 vec3_to_uvec3(vec3 v) { + return uvec3(v * 255.0); +} +uvec3 read_uvec3(vec2 uv) { + uv *= province_shape_subdivisions; + vec2 subdivision_coords = mod(floor(uv), province_shape_subdivisions); + float idx = subdivision_coords.x + subdivision_coords.y * province_shape_subdivisions.x; + return vec3_to_uvec3(texture(province_shape_tex, vec3(uv, idx)).rgb); +} +uint uvec2_to_uint(uvec2 v) { + return (v.y << 8u) | v.x; +} -- cgit v1.2.3-56-ga3b1