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examples: fix depth texture recreation

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PiergiorgioZagaria 2022-05-18 21:54:04 +02:00 • committed by Stephen Gutekanst
parent 3bb45c75a1
commit a4e8de2a83
3 changed files with 67 additions and 61 deletions
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28
examples/advanced-gen-texture-light/main.zig
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@ -22,8 +22,7 @@ queue: gpu.Queue,
cube: Cube,
camera: Camera,
light: Light,
depth: Texture,
depth_size: mach.Size,
depth: ?Texture,
keys: u8 = 0,
const Dir = struct {
@ -59,21 +58,15 @@ pub fn init(app: *App, engine: *mach.Engine) !void {
app.queue = engine.gpu_driver.device.getQueue();
app.cube = Cube.init(engine);
app.light = Light.init(engine);
app.depth = Texture.depth(engine.gpu_driver.device, size.width, size.height);
app.depth_size = size;
app.depth = null;
app.camera = Camera.init(engine.gpu_driver.device, eye, target, vec3(0.0, 1.0, 0.0), aspect_ratio, 45.0, 0.1, 100.0);
}
pub fn deinit(_: *App, _: *mach.Engine) void {}
pub fn deinit(app: *App, _: *mach.Engine) void {
app.depth.?.release();
}
pub fn update(app: *App, engine: *mach.Engine) !bool {
// If window is resized, recreate depth buffer otherwise we cannot use it.
const size = engine.core.getFramebufferSize() catch unreachable; // TODO: return type inference can't handle this
if (size.width != app.depth_size.width or size.height != app.depth_size.height) {
app.depth = Texture.depth(engine.gpu_driver.device, size.width, size.height);
app.depth_size = size;
}
// move camera
const speed = zm.f32x4s(@floatCast(f32, engine.delta_time * 5));
const fwd = zm.normalize3(app.camera.target - app.camera.eye);
@ -109,7 +102,7 @@ pub fn update(app: *App, engine: *mach.Engine) !bool {
const render_pass_descriptor = gpu.RenderPassEncoder.Descriptor{
.color_attachments = &.{color_attachment},
.depth_stencil_attachment = &.{
.view = app.depth.view,
.view = app.depth.?.view,
.depth_load_op = .clear,
.depth_store_op = .store,
.stencil_load_op = .none,
@ -158,6 +151,15 @@ pub fn update(app: *App, engine: *mach.Engine) !bool {
return true;
}
pub fn resize(app: *App, engine: *mach.Engine, width: u32, height: u32) !void {
// If window is resized, recreate depth buffer otherwise we cannot use it.
if (app.depth != null) {
app.depth.?.release();
}
// It also recreates the sampler, which is a waste, but for an example it's ok
app.depth = Texture.depth(engine.gpu_driver.device, width, height);
}
const Camera = struct {
const Self = @This();