1 files changed, 5 insertions, 1 deletions
diff --git a/src/gpu/effects/passthrough_effect.cc b/src/gpu/effects/passthrough_effect.cc
index cb92ba1..7825c0a 100644
--- a/src/gpu/effects/passthrough_effect.cc
+++ b/src/gpu/effects/passthrough_effect.cc
@@ -9,11 +9,15 @@ PassthroughEffect::PassthroughEffect(WGPUDevice device, WGPUQueue queue,
                                      WGPUTextureFormat format)
     : PostProcessEffect(device, queue) {
   uniforms_ =
-      gpu_create_buffer(device_, sizeof(float) * 4,
+      gpu_create_buffer(device_, sizeof(float) * 6,
                         WGPUBufferUsage_Uniform | WGPUBufferUsage_CopyDst);
   pipeline_ =
       create_post_process_pipeline(device_, format, passthrough_shader_wgsl);
 }
 void PassthroughEffect::update_bind_group(WGPUTextureView input_view) {
+  struct {
+    float t, b, i, a, w, h;
+  } u = {0, 0, 0, 0, (float)width_, (float)height_};
+  wgpuQueueWriteBuffer(queue_, uniforms_.buffer, 0, &u, sizeof(u));
   pp_update_bind_group(device_, pipeline_, &bind_group_, input_view, uniforms_);
 }