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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| struct Params { | ||
| dimensions: u32, | ||
| radius: f32, | ||
| noise_seed: u32, | ||
| noise_scale: f32, | ||
| noise_amplitude: f32, | ||
| noise_offset: f32, | ||
| power_bias: f32, | ||
| flatness: f32, | ||
| steepness: f32, | ||
| mix: f32, | ||
| warp_amount: f32, | ||
| warp_scale: f32, | ||
| noise_weight: f32, | ||
| ca_thresh: f32, | ||
| ca_search_radius: f32 | ||
| } | ||
|
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| fn get_weighted_neighbor_count(x: i32, y: i32, radius: f32) -> f32 { | ||
| var found = 0.0; | ||
| let dim = i32(params.dimensions); | ||
| let r = i32(ceil(radius)); | ||
|
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| for(var i = -r; i <= r; i++) { | ||
| for(var j = -r; j <= r; j++) { | ||
| let dist_sq = f32(i * i + j * j); | ||
| if (dist_sq > radius * radius) { | ||
| continue; | ||
| } | ||
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| if(i == 0 && j == 0) { | ||
| continue; | ||
| } | ||
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| let new_x = x + i; | ||
| let new_y = y + j; | ||
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| if(new_x < 0 || new_x >= dim || new_y < 0 || new_y >= dim) { | ||
| // found += 1.0; // Treat out-of-bounds as walls | ||
| continue; | ||
| } | ||
|
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| let new_pos = vec2<i32>(new_x, new_y); | ||
| let v = textureLoad(input_texture, new_pos).a; | ||
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| // Weight by distance from center | ||
| let weight = 1.0 - sqrt(dist_sq) / radius; | ||
| found += v * weight; | ||
| } | ||
| } | ||
| return found; | ||
| } | ||
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| @group(0) @binding(0) var<uniform> params: Params; | ||
| @group(0) @binding(1) var input_texture: texture_storage_2d<rgba32float, read>; | ||
| @group(0) @binding(2) var output_texture: texture_storage_2d<rgba32float, write>; | ||
|
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| // @compute @workgroup_size(16, 16) | ||
| // fn main(@builtin(global_invocation_id) global_id: vec3<u32>) { | ||
| // let x = global_id.x; | ||
| // let y = global_id.y; | ||
|
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| // if (x >= params.dimensions || y >= params.dimensions) { | ||
| // return; | ||
| // } | ||
|
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| // let upos = vec2<i32>(i32(x), i32(y)); | ||
| // let current = textureLoad(input_texture, upos); | ||
|
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| // let nze = current.a; | ||
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| // let scaled_radius = params.ca_search_radius * (8.0 / (f32(params.dimensions) / 128.0)); | ||
| // let neighbor_weight = get_weighted_neighbor_count(i32(x), i32(y), scaled_radius); | ||
|
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| // let base_threshold = params.ca_thresh * (scaled_radius / 4.0); | ||
|
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| // // Increased stability bias for more persistence | ||
| // let stability_bias = 0.25; | ||
| // let threshold = select( | ||
| // base_threshold, | ||
| // base_threshold * (1.0 - stability_bias), | ||
| // nze > 0.5 | ||
| // ); | ||
|
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| // // Wider transition zone | ||
| // let transition_width = 0.2 * base_threshold; | ||
| // let diff = neighbor_weight - threshold; | ||
|
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| // // Use the transition value directly instead of as a selector | ||
| // let transition = 1.0 - smoothstep(-transition_width, transition_width, diff); | ||
|
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| // // Strong bias toward maintaining current state unless transition is significant | ||
| // let persistence = 0.7; | ||
| // let v = select( | ||
| // transition, | ||
| // nze, | ||
| // abs(nze - transition) < persistence | ||
| // ); | ||
|
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| // var result = current.x - nze; | ||
| // result = clamp(result, 0., 1.); | ||
|
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| // textureStore(output_texture, upos, vec4f(result, current.y, current.z, nze)); | ||
| // } | ||
|
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| @compute @workgroup_size(16, 16) | ||
| fn main(@builtin(global_invocation_id) global_id: vec3<u32>) { | ||
| let x = global_id.x; | ||
| let y = global_id.y; | ||
|
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| if (x >= params.dimensions || y >= params.dimensions) { | ||
| return; | ||
| } | ||
|
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| let upos = vec2<i32>(i32(x), i32(y)); | ||
| let current = textureLoad(input_texture, upos); | ||
|
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| let nze = current.a; | ||
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| // let result = nze; | ||
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| // let caves = 1.0; | ||
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| let nbs = get_weighted_neighbor_count(i32(x), i32(y), params.ca_search_radius); | ||
|
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| var caves = select( | ||
| 0., | ||
| 1., | ||
| nbs > params.ca_thresh | ||
| ); | ||
|
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| var result = current.r - caves; | ||
|
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| // // result = current.z - result; | ||
| // result = clamp (result, 0., 1.); | ||
|
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| textureStore(output_texture, upos, vec4f(current.x, current.y, current.z, caves)); | ||
| } |
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