et pos = vec3f(uv.x-0.5, uv.y-0.5, (1- tex)*0.5-0.3);\\n return pos;\\n}\\n\\nfn PosToWorld(posin:vec3f) -> vec3f{\\n var pos = posin;\\n let theta = time.elapsed*0.1;\\n let rot_mat = mat2x2(vec2f(cos(theta), sin(theta)),\\n vec2f(-sin(theta), cos(theta)) );\\n\\n var pos2d = pos.xy;\\n pos2d = rot_mat * pos2d;\\n pos.x = pos2d.x;\\n pos.y = pos2d.y;\\n // Zoom level\\n pos = pos * vec3f(0.7);\\n return pos;\\n}\\n\\nfn PosToCamera(posin:vec3f) -> vec3f{\\n var pos = PosToWorld(posin);\\n\\n var splat_pos = vec2(pos.y, pos.z);\\n let tilt_angle =-0.8;\\n let tilt_mat = mat2x2(vec2f(cos(tilt_angle), sin(tilt_angle)),\\n vec2f(-sin(tilt_angle), cos(tilt_angle)) );\\n splat_pos = tilt_mat * splat_pos;\\n pos.y = splat_pos.x;\\n pos.z = splat_pos.y;\\n return pos;\\n}\\n\\nfn PosToScreenUV(pos:vec3f) -> vec2u {\\n return vec2u((pos.xz+0.5) * vec2f(textureDimensions(screen)));\\n}\\n\\nfn UVToWord(uv:vec2f) -> uint {\\n let x = uint(uv.x * 16384.0);\\n let y = uint(uv.y * 16384.0);\\n return (y<<16) | x;\\n}\\n\\nfn WordToUV(word: uint) -> vec2f {\\n let x = f32(word & 0xFFFF) /16384.0;\\n let y = f32(word >>16) /16384.0;\\n return vec2f(x,y);\\n}\\n\\nfn UVToNormal(uv:vec2f) -> vec3f {\\n let half_uv = 1.0/ FIELD_SIZE;\\n let pos00 = PosToWorld(UVToPos(uv));\\n let pos01 = PosToWorld(UVToPos(uv+vec2f(half_uv,0)));\\n let pos10 = PosToWorld(UVToPos(uv+vec2f(0.0,half_uv)));\\n let dirx = normalize(pos01 - pos00);\\n let diry = normalize(pos10 - pos00);\\n return cross(dirx,diry);\\n}\\n\\n\\n// For testing of 4x4 field\\n//#workgroup_count splat_camera 1 1 1\\n//@compute @workgroup_size(4, 4)\\n\\n// These values related to texture size\\n#workgroup_count splat_camera 64 64 1\\n@compute @workgroup_size(16, 16)\\nfn splat_camera(@builtin(global_invocation_id) id: vec3u) {\\n \\n let uv = TexelToUV(id);\\n var pos = PosToCamera(UVToPos(uv));\\n var uv_int = PosToScreenUV(pos);\\n var min_screen_int = uv_int;\\n var max_screen_int = uv_int;\\n\\n // Quad corners should cover screen area even though quad is not actually flat.\\n for(var i=0u; i < 2u;i++){\\n for(var j=0u; j < 2u;j++){\\n let uv_11 = TexelToUV(id + vec3u(i,j,0));\\n let pos_11 = PosToCamera(UVToPos(uv_11));\\n let uv_int_11 = PosToScreenUV(pos_11);\\n let num_iter = vec2u(1,1);\\n min_screen_int = min(min_screen_int, uv_int_11);\\n max_screen_int = max(max_screen_int, uv_int_11);\\n }\\n }\\n\\n let diff_screen_int = vec2u(max_screen_int-min_screen_int);\\n var span_screen_int = max(1, max(diff_screen_int.x,diff_screen_int.y)+1);\\n\\n var inv_count = 1.0/f32(span_screen_int);\\n for(var i=0u; i =SCREEN_WIDTH || uv_int.y>=SCREEN_HEIGHT){\\n return;\\n }\\n var current = uint(0);\\n var res = atomicCompareExchangeWeak(&texel_camera[uv_int.x][uv_int.y],current, UVToWord(uv));\\n while(!res.exchanged){\\n current = res.old_value;\\n var curr_pos = PosToCamera(UVToPos(WordToUV(current)));\\n if(curr_pos.y < pos.y) {\\n break; \\n }\\n res = atomicCompareExchangeWeak(&texel_camera[uv_int.x][uv_int.y], \\n current, UVToWord(uv));\\n }\\n }\\n }\\n}\\n\\n@compute @workgroup_size(16, 16)\\nfn main_image(@builtin(global_invocation_id) id: vec3u) {\\n let screen_size = textureDimensions(screen);\\n if (id.x >= screen_size.x || id.y >= screen_size.y) { return; }\\n\\n\\n let load_val = atomicLoad(&texel_camera[id.x][id.y]);\

@compute.toys