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Remove FPS cap with optional vsync arg

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This commit is contained in:
Jared Miller 2025-12-16 09:32:06 -05:00
parent 2deaa66a78
commit 103aa0191b
2 changed files with 8 additions and 3 deletions
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2
src/sandbox.zig
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@ -18,7 +18,7 @@ pub const Entity = struct {
color: u32, color: u32,
}; };
pub const MAX_ENTITIES: usize = 1_000_000; pub const MAX_ENTITIES: usize = 10_000_000;
pub const Entities = struct { pub const Entities = struct {
items: []Entity, items: []Entity,

9
src/sandbox_main.zig
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@ -20,7 +20,7 @@ const TEXTURE_SIZE: i32 = 16; // must be >= 2 * radius
const MESH_SIZE: f32 = @floatFromInt(TEXTURE_SIZE); // match texture size const MESH_SIZE: f32 = @floatFromInt(TEXTURE_SIZE); // match texture size
// logging thresholds // logging thresholds
const TARGET_FRAME_MS: f32 = 16.7; // 60fps const TARGET_FRAME_MS: f32 = 8.33; // 120fps
const THRESHOLD_MARGIN: f32 = 2.0; // hysteresis margin to avoid bounce const THRESHOLD_MARGIN: f32 = 2.0; // hysteresis margin to avoid bounce
const JUMP_THRESHOLD_MS: f32 = 5.0; // log if frame time jumps by this much const JUMP_THRESHOLD_MS: f32 = 5.0; // log if frame time jumps by this much
const HEARTBEAT_INTERVAL: f32 = 10.0; // seconds between periodic logs const HEARTBEAT_INTERVAL: f32 = 10.0; // seconds between periodic logs
@ -156,6 +156,7 @@ pub fn main() !void {
var bench_mode = false; var bench_mode = false;
var use_instancing = false; var use_instancing = false;
var use_ssbo = true; var use_ssbo = true;
var use_vsync = false;
var args = try std.process.argsWithAllocator(std.heap.page_allocator); var args = try std.process.argsWithAllocator(std.heap.page_allocator);
defer args.deinit(); defer args.deinit();
_ = args.skip(); // skip program name _ = args.skip(); // skip program name
@ -167,12 +168,16 @@ pub fn main() !void {
use_ssbo = false; // legacy GPU instancing path use_ssbo = false; // legacy GPU instancing path
} else if (std.mem.eql(u8, arg, "--legacy")) { } else if (std.mem.eql(u8, arg, "--legacy")) {
use_ssbo = false; // legacy rlgl batched path use_ssbo = false; // legacy rlgl batched path
} else if (std.mem.eql(u8, arg, "--vsync")) {
use_vsync = true;
} }
} }
if (use_vsync) {
rl.setConfigFlags(.{ .vsync_hint = true });
}
rl.initWindow(@intCast(SCREEN_WIDTH), @intCast(SCREEN_HEIGHT), "lofivor sandbox"); rl.initWindow(@intCast(SCREEN_WIDTH), @intCast(SCREEN_HEIGHT), "lofivor sandbox");
defer rl.closeWindow(); defer rl.closeWindow();
rl.setTargetFPS(60);
// use larger batch buffer: 16384 elements vs default 8192 // use larger batch buffer: 16384 elements vs default 8192
// fewer flushes = less driver overhead per frame // fewer flushes = less driver overhead per frame