rebuild command buffer each frame

fw/render.rs

@@ -658,74 +658,6 @@ impl StaticData {
 		let cmd_bufs =
 			unsafe { self.dev.allocate_command_buffers(&create_info)? };
 
-		let clear_values = [
-			vk::ClearValue {
-				color: vk::ClearColorValue { float32: [0.101, 0.078, 0.113, 1.0] },
-			},
-			vk::ClearValue {
-				depth_stencil: vk::ClearDepthStencilValue {
-					depth: 1.0,
-					stencil: 0,
-				},
-			},
-		];
-
-		for (&buf, &framebuffer, &set) in crate::types::iter::ClosedZip((
-			cmd_bufs.iter(),
-			framebuffers.iter(),
-			desc_sets.iter(),
-		)) {
-			let begin_info = vk::RenderPassBeginInfo {
-				render_pass,
-				framebuffer,
-				render_area: vk::Rect2D {
-					extent: sc_extent,
-					..Default::default()
-				},
-				clear_value_count: clear_values.len().cast(),
-				p_clear_values: clear_values.as_ptr(),
-				..Default::default()
-			};
-
-			unsafe {
-				self.dev.begin_command_buffer(
-					buf,
-					&vk::CommandBufferBeginInfo::default(),
-				)?;
-
-				self.dev.cmd_begin_render_pass(
-					buf,
-					&begin_info,
-					vk::SubpassContents::INLINE,
-				);
-
-				self.dev.cmd_bind_pipeline(
-					buf,
-					vk::PipelineBindPoint::GRAPHICS,
-					pipeline,
-				);
-
-				self.dev.cmd_bind_descriptor_sets(
-					buf,
-					vk::PipelineBindPoint::GRAPHICS,
-					self.pipe_layout,
-					0,
-					&[set],
-					&[],
-				);
-
-				/*
-				for which in sc_info.model.model().keys() {
-					sc_info.model.draw(buf, which).unwrap();
-				}
-				*/
-
-				self.dev.cmd_end_render_pass(buf);
-
-				self.dev.end_command_buffer(buf)?;
-			}
-		}
-
 		Ok(SwapchainData {
 			cmd_bufs,
 
@@ -818,6 +750,18 @@ impl Renderer {
 	unsafe fn draw_frame_raw(&mut self) -> Result<(), vk::Result> {
 		use crate::math::*;
 
+		const CLEAR_VALUES: [vk::ClearValue; 2] = [
+			vk::ClearValue {
+				color: vk::ClearColorValue { float32: [0.101, 0.078, 0.113, 1.0] },
+			},
+			vk::ClearValue {
+				depth_stencil: vk::ClearDepthStencilValue {
+					depth: 1.0,
+					stencil: 0,
+				},
+			},
+		];
+
 		// synchronize and set up this fence
 		let sem_img = self.st.sem_img[self.cur_c_frame];
 		let sem_ren = self.st.sem_ren[self.cur_c_frame];
@@ -892,8 +836,54 @@ impl Renderer {
 		*/
 
 		// write command buffer
+		let framebuffer = self.sc.framebuffers[image_index];
+		let desc_set = self.sc.desc_sets[image_index];
 		let cmd_buf = self.sc.cmd_bufs[image_index];
 
+		let begin_info = vk::RenderPassBeginInfo {
+			framebuffer,
+			render_pass: self.sc.render_pass,
+			render_area: vk::Rect2D {
+				extent: self.sc.sc_extent,
+				..Default::default()
+			},
+			clear_value_count: CLEAR_VALUES.len().cast(),
+			p_clear_values: CLEAR_VALUES.as_ptr(),
+			..Default::default()
+		};
+
+		unsafe {
+			self.st.dev.begin_command_buffer(
+				cmd_buf,
+				&vk::CommandBufferBeginInfo::default(),
+			)?;
+
+			self.st.dev.cmd_begin_render_pass(
+				cmd_buf,
+				&begin_info,
+				vk::SubpassContents::INLINE,
+			);
+
+			self.st.dev.cmd_bind_pipeline(
+				cmd_buf,
+				vk::PipelineBindPoint::GRAPHICS,
+				self.sc.pipeline,
+			);
+
+			self.st.dev.cmd_bind_descriptor_sets(
+				cmd_buf,
+				vk::PipelineBindPoint::GRAPHICS,
+				self.st.pipe_layout,
+				0,
+				&[desc_set],
+				&[],
+			);
+
+			self.st.dev.cmd_end_render_pass(cmd_buf);
+
+			self.st.dev.end_command_buffer(cmd_buf)?;
+		}
+
 		// submit
 		let wait_stg = vk::PipelineStageFlags::COLOR_ATTACHMENT_OUTPUT;