ec3u(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 // Kinda hacky max extents code which could be slightly optimized.\\n // This code renders real quad patches ... NOT simply triangles\\n // one can see this much easier in the tiny test height field\\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 // TODO: Refactor this code so it doesnt need to appear twice\\n var res = atomicCompareExchangeWeak(\\n &texel_camera[CAMERA_TEXEL_INDEX][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(\\n &texel_camera[CAMERA_TEXEL_INDEX][uv_int.x][uv_int.y], \\n current, UVToWord(uv));\\n }\\n }\\n }\\n}\\n\\n// These values related to texture size\\n// Same code as the camera splat\\n// TODO this code could actually simply store depth \\n// It does not need to store uvs for this demo to work.\\n#workgroup_count splat_shadow 64 64 1\\n@compute @workgroup_size(16, 16)\\nfn splat_shadow(@builtin(global_invocation_id) id: vec3u) {\\n \\n let uv = TexelToUV(id);\\n var pos = PosToShadow(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 = PosToShadow(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(\\n &texel_camera[SHADOW_TEXEL_INDEX][uv_int.x][uv_int.y],current, UVToWord(uv));\\n while(!res.exchanged){\\n current = res.old_value;\\n var curr_pos = PosToShadow(UVToPos(WordToUV(current)));\\n if(curr_pos.y < pos.y) {\\n break; \\n }\\n res = atomicCompareExchangeWeak(\\n &texel_camera[SHADOW_TEXEL_INDEX][uv_int.x][uv_int.y], \\n

@compute.toys