Render texture and fix camera target

Copy the temp buffer to the output image
Silence some warnings
2026-11-01 17:38:22 +00:00 · 2026-11-01 03:03:30 +00:00 · 2026-11-01 01:31:25 +00:00
5 changed files with 255 additions and 90 deletions
@@ -73,7 +73,7 @@ copy-assets:
 	@cp -r $(ASSETS_DIR) $(BUILDDIR)

 run:
-	@cd $(BUILDDIR) && ./$(OUT_NAME)
+	@cd $(BUILDDIR) && VK_LAYER_MESSAGE_ID_FILTER=0x8adbf7e3,0x8b6f2f9a ./$(OUT_NAME)

 clean:
 	@rm -rf $(BUILD_ROOT)
@@ -355,8 +355,8 @@ typedef struct GpuBufferCreateRequest {
 } GpuBufferCreateRequest;

 typedef struct GpuBufferFlushRequest {
-	GpuDevice *device;
 	GpuBuffer  buffer;
+	GpuDevice *device;
 	u64        offset;
 	u64        size;
 } GpuBufferFlushRequest;
@@ -1166,12 +1166,21 @@ typedef struct GpuCmdDispatchBaseRequest {
 	u32               group_count_z;
 } GpuCmdDispatchBaseRequest;

-typedef struct GpuQueueSubmitRequest {
-	GpuSemaphorePtrArray       wait_semaphores;
-	GpuPipelineStageFlagsArray wait_dst_stage_masks;
-	GpuCommandBufferPtrArray   command_buffers;
-	GpuSemaphorePtrArray       signal_semaphores;
-} GpuQueueSubmitRequest;
+typedef struct GpuBufferImageCopy {
+	GpuImageSubresourceLayers image_subresource;
+	GpuOffset3d               image_offset;
+	GpuExtent3d               image_extent;
+	u64                       buffer_offset;
+} GpuBufferImageCopy;
+typedef GpuBufferImageCopy *GpuBufferImageCopyArray;
+
+typedef struct GpuCmdCopyBufferToImageRequest {
+	GpuCommandBuffer       *command_buffer;
+	GpuBuffer              *src_buffer;
+	GpuImage               *dst_image;
+	GpuImageLayout          dst_image_layout;
+	GpuBufferImageCopyArray copy_regions;
+} GpuCmdCopyBufferToImageRequest;

 GpuInstance                   *gpuInit(const WpAllocator *allocator, GpuInitRequest request);
 GpuPhysicalDevice              gpuFindPhysicalDevice(const WpAllocator *allocator, const WpAllocator *temp,
@@ -1252,6 +1261,7 @@ void                           gpuCmdDraw(GpuCmdDrawRequest request);
 void                           gpuCmdDrawIndexed(GpuCmdDrawIndexedRequest request);
 void                           gpuCmdDispatch(GpuCmdDispatchRequest request);
 void                           gpuCmdDispatchBase(GpuCmdDispatchBaseRequest request);
+void                           gpuCmdCopyBufferToImage(const WpAllocator *temp, GpuCmdCopyBufferToImageRequest request);

 #ifdef WP_PLATFORM_CPP
 END_C_LINKAGE
@@ -77,6 +77,7 @@ typedef VkRenderingAttachmentInfo                          *VkRenderingAttachmen
 typedef VkSemaphoreSubmitInfo                              *VkSemaphoreSubmitInfoArray;
 typedef VkCommandBufferSubmitInfo                          *VkCommandBufferSubmitInfoArray;
 typedef VkImageBlit2                                       *VkImageBlit2Array;
+typedef VkBufferImageCopy                                  *VkBufferImageCopyArray;

 struct GpuInstance {
 	VkInstance          vk_instance;
@@ -320,6 +321,8 @@ wp_intern u32                          calcMaxMipLevelsForSize(ivec3s size);
 GpuInstance *gpuInit(const WpAllocator *allocator, GpuInitRequest request) {
 	assertWithLogger(volkInitialize() == VK_SUCCESS, &logger, "Failed to initialise volk");

+	stbi_set_flip_vertically_on_load(true);
+
 	VpProfileProperties profile = {
 		.profileName = VP_TEST_WINDOW_RENDERER_NAME,
 		.specVersion = VP_TEST_WINDOW_RENDERER_SPEC_VERSION,
@@ -858,6 +861,8 @@ GpuSampler *gpuCreateSampler(const WpAllocator *allocator, GpuSamplerCreateReque

 	wpLogDebug(&logger, wpStr8Lit("Created Vulkan sampler"));

+	output->device = request.device;
+
 	return output;
 }

@@ -890,8 +895,24 @@ GpuImage *gpuCreateImage(const WpAllocator *allocator, GpuImageCreateRequest req
 		.initialLayout         = vkImageLayoutFromGpuImageLayout(request.layout),
 	};

+	// Check if the image requires a dedicated allocation
+	VkMemoryDedicatedRequirements dedicated_memory_reqs = {
+		.sType = VK_STRUCTURE_TYPE_MEMORY_DEDICATED_REQUIREMENTS,
+	};
+	VkMemoryRequirements2 memory_reqs = {
+		.sType = VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2,
+		.pNext = &dedicated_memory_reqs,
+	};
+	VkDeviceImageMemoryRequirements image_memory_reqs = {
+		.sType       = VK_STRUCTURE_TYPE_DEVICE_IMAGE_MEMORY_REQUIREMENTS,
+		.pCreateInfo = &image_create_info,
+	};
+	vkGetDeviceImageMemoryRequirements(request.device->vk_device, &image_memory_reqs, &memory_reqs);
+
+	b8 requires_dedicated_memory = dedicated_memory_reqs.requiresDedicatedAllocation ||
+	                               dedicated_memory_reqs.prefersDedicatedAllocation;
 	VmaAllocationCreateInfo alloc_create_info = {
-		.flags = VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT,
+		.flags = requires_dedicated_memory ? VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT : 0,
 		.usage = VMA_MEMORY_USAGE_AUTO,
 	};

@@ -934,11 +955,14 @@ GpuImage *gpuLoadImageFromFile(const WpAllocator *allocator, const WpAllocator *
 	wpStr8CopyToCstr(buf, &request.filename, request.filename.size + 1);

 	i32 width, height, channels;
-	const u8 *data = stbi_load(buf, &width, &height, &channels, 4);
+	i32 requested_channels = 4;
+	const u8 *data = stbi_load(buf, &width, &height, &channels, requested_channels);
 	assertWithLogger(data != NULL, &logger, "Failed to load image data");

+	GpuDevice *device = request.command_pool->device;
+
 	GpuImageCreateRequest img_request = {
-		.device      = request.command_pool->device,
+		.device      = device,
 		.size        = { .x = width, .y = height, .z = 1 },
 		.type        = GPU_IMAGE_TYPE_2D,
 		.format      = GPU_FORMAT_R8G8B8A8_SRGB,
@@ -956,14 +980,15 @@ GpuImage *gpuLoadImageFromFile(const WpAllocator *allocator, const WpAllocator *
 	};
 	GpuImage *output = gpuCreateImage(allocator, img_request);

-	u64 data_size = width * height * channels * sizeof(u8);
+	u64 data_size = width * height * requested_channels * sizeof(u8);
 	GpuBufferCreateRequest temp_buf_request = {
-		.device = request.command_pool->device,
+		.device = device,
 		.size   = data_size,
 		.usage  = GPU_BUFFER_USAGE_TRANSFER_SRC,
 	};
 	GpuBuffer temp_storage = gpuCreateBuffer(allocator, temp_buf_request);
 	memcpy(temp_storage.cpu_mapping, data, data_size);
+	gpuFlushBuffer((GpuBufferFlushRequest){ .device = device, .buffer = temp_storage });

 	stbi_image_free((void *)data);

@@ -974,6 +999,95 @@ GpuImage *gpuLoadImageFromFile(const WpAllocator *allocator, const WpAllocator *
 	GpuCommandBufferPtrArray cbs = gpuAllocateCommandBuffers(allocator, temp, cb_request);
 	GpuCommandBuffer *cb         = cbs[0];

+	gpuBeginCommandBuffer((GpuCommandBufferBeginRequest){ .command_buffer = cb, .one_time_submit = true });
+
+	GpuImageMemoryBarrier image_barrier = {
+		.image           = output,
+		.src_stage_mask  = GPU_PIPELINE_STAGE_NONE,
+		.src_access_mask = GPU_ACCESS_NONE,
+		.dst_stage_mask  = GPU_PIPELINE_STAGE_TRANSFER,
+		.dst_access_mask = GPU_ACCESS_TRANSFER_WRITE,
+		.old_layout      = GPU_IMAGE_LAYOUT_UNDEFINED,
+		.new_layout      = GPU_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
+		.subresource     = {
+			.aspect      = GPU_IMAGE_ASPECT_COLOR,
+			.level_count = 1,
+			.layer_count = 1,
+		}
+	};
+
+	GpuCmdPipelineBarrierRequest barrier_req = {
+		.command_buffer = cb,
+		.info           = (GpuDependencyInfo){
+			.image_memory_barriers = wpArray(GpuImageMemoryBarrier, image_barrier),
+		},
+	};
+	gpuCmdPipelineBarrier(temp, barrier_req);
+
+	GpuCmdCopyBufferToImageRequest copy_req = {
+		.command_buffer = cb,
+		.src_buffer     = &temp_storage,
+		.dst_image      = output,
+		.dst_image_layout = GPU_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
+		.copy_regions = wpArray(
+			GpuBufferImageCopy,
+			(GpuBufferImageCopy){
+				.image_subresource = { .layer_count = 1, .aspect_mask = GPU_IMAGE_ASPECT_COLOR },
+				.image_extent      = { .width = width, .height = height, .depth = 1 },
+			}
+		),
+	};
+	gpuCmdCopyBufferToImage(temp, copy_req);
+
+	image_barrier = (GpuImageMemoryBarrier){
+		.image           = output,
+		.src_stage_mask  = GPU_PIPELINE_STAGE_TRANSFER,
+		.src_access_mask = GPU_ACCESS_TRANSFER_WRITE,
+		.dst_stage_mask  = GPU_PIPELINE_STAGE_FRAGMENT_SHADER,
+		.dst_access_mask = GPU_ACCESS_SHADER_READ,
+		.old_layout      = GPU_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
+		.new_layout      = GPU_IMAGE_LAYOUT_READ_ONLY_OPTIMAL,
+		.subresource     = {
+			.aspect      = GPU_IMAGE_ASPECT_COLOR,
+			.level_count = 1,
+			.layer_count = 1,
+		}
+	};
+	barrier_req = (GpuCmdPipelineBarrierRequest){
+		.command_buffer = cb,
+		.info           = (GpuDependencyInfo){
+			.image_memory_barriers = wpArray(GpuImageMemoryBarrier, image_barrier),
+		},
+	};
+	gpuCmdPipelineBarrier(temp, barrier_req);
+
+	gpuEndCommandBuffer(cb);
+
+	GpuFence *fence = gpuCreateFence(allocator, device);
+
+	GpuResetFencesRequest reset_req = {
+		.device = device,
+		.fences = wpArray(GpuFence *, fence)
+	};
+	gpuResetFences(temp, reset_req);
+
+	GpuCommandBuffersSubmitRequest submit_req = {
+		.device          = device,
+		.command_buffers = cbs,
+		.fence           = fence,
+	};
+	gpuSubmitCommandBuffers(temp, submit_req);
+
+	GpuWaitForFencesRequest wait_req = {
+		.device  = device,
+		.fences  = wpArray(GpuFence *, fence),
+		.timeout = UINT64_MAX,
+	};
+	gpuWaitForFences(temp, wait_req);
+
+	gpuDestroyFence(fence);
+	gpuDestroyBuffer(&temp_storage);
+
 	return output;
 }

@@ -2193,6 +2307,35 @@ void gpuCmdDispatchBase(GpuCmdDispatchBaseRequest request) {
 	                  request.group_count_z);
 }

+void gpuCmdCopyBufferToImage(const WpAllocator *temp, GpuCmdCopyBufferToImageRequest request) {
+	u64 region_count = wpArrayCount(request.copy_regions);
+	VkBufferImageCopyArray copy_regions = wpArrayAllocCapacity(VkBufferImageCopy, temp, region_count,
+	                                                           WP_ARRAY_INIT_FILLED);
+	assertWithLogger(copy_regions != NULL, &logger, "Failed to allocate temp copy buffer to image arrays");
+
+	for (u64 i = 0; i < region_count; ++i) {
+		copy_regions[i] = (VkBufferImageCopy){
+			.bufferOffset     = request.copy_regions[i].buffer_offset,
+			.imageSubresource = (VkImageSubresourceLayers){
+				.aspectMask     = vkImageAspectFromGpuImageAspect(request.copy_regions[i].image_subresource.aspect_mask),
+				.baseArrayLayer = request.copy_regions[i].image_subresource.base_array_layer,
+				.layerCount     = request.copy_regions[i].image_subresource.layer_count,
+				.mipLevel       = request.copy_regions[i].image_subresource.mip_level,
+			},
+			.imageOffset      = (VkOffset3D){ .x = request.copy_regions[i].image_offset.x,
+			                                  .y = request.copy_regions[i].image_offset.y,
+			                                  .z = request.copy_regions[i].image_offset.z },
+			.imageExtent      = (VkExtent3D){ .width  = request.copy_regions[i].image_extent.width,
+			                                  .height = request.copy_regions[i].image_extent.height,
+			                                  .depth  = request.copy_regions[i].image_extent.depth },
+		};
+	}
+
+	vkCmdCopyBufferToImage(request.command_buffer->vk_buffer, request.src_buffer->internal->vk_buffer,
+	                       request.dst_image->vk_image, vkImageLayoutFromGpuImageLayout(request.dst_image_layout),
+	                       wpArrayCount(copy_regions), copy_regions);
+}
+
 wp_intern VkExtensions getInstanceExtensions(void) {
 	Config config       = configGet();
 	VkExtensions output = {0};
@@ -20,7 +20,7 @@ enum Errors {
 typedef struct Vertex {
 	vec3s position;
 	vec3s color;
-	// vec2s uv;
+	vec2s uv;
 } Vertex;
 typedef Vertex *VertexArray;

@@ -33,7 +33,6 @@ typedef ShaderData *ShaderDataArray;

 typedef struct Camera {
 	vec3s position;
-	vec3s target;
 	vec3s up;
 } Camera;

@@ -47,20 +46,24 @@ typedef struct Projection {
 wp_intern const VertexArray vertices = wpArray(
 	Vertex,
 	(Vertex){
-		.position = (vec3s){ .x = -0.5f,  .y = -0.5f, .z = 0.0f },
-		.color    = (vec3s){ .r =  1.0f,  .g =  0.0f, .b = 0.0f },
+		.position = (vec3s){ .x = -0.5f, .y = -0.5f, .z = 0.0f },
+		.color    = (vec3s){ .r =  1.0f, .g =  1.0f, .b = 1.0f },
+		.uv       = (vec2s){ .x =  0.0f, .y =  0.0f },
 	},
 	(Vertex){
 		.position = (vec3s){ .x = -0.5f, .y = 0.5f, .z = 0.0f },
-		.color    = (vec3s){ .r =  0.0f, .g = 1.0f, .b = 0.0f },
+		.color    = (vec3s){ .r =  1.0f, .g = 1.0f, .b = 1.0f },
+		.uv       = (vec2s){ .x =  0.0f, .y = 1.0f },
 	},
 	(Vertex){
 		.position = (vec3s){ .x = 0.5f, .y = -0.5f, .z = 0.0f },
-		.color    = (vec3s){ .r = 0.0f, .g =  0.0f, .b = 1.0f },
+		.color    = (vec3s){ .r = 1.0f, .g =  1.0f, .b = 1.0f },
+		.uv       = (vec2s){ .x = 1.0f, .y =  0.0f },
 	},
 	(Vertex){
 		.position = (vec3s){ .x = 0.5f, .y = 0.5f, .z = 0.0f },
 		.color    = (vec3s){ .r = 1.0f, .g = 1.0f, .b = 1.0f },
+		.uv       = (vec2s){ .x = 1.0f, .y = 1.0f },
 	},
 );
 wp_intern const WpU16Array indices = wpArray(
@@ -69,6 +72,7 @@ wp_intern const WpU16Array indices = wpArray(
 	1, 3, 2,
 );

+wp_intern mat4s calculateModelViewProjection(vec3s translation, Camera camera, Projection projection);
 wp_intern mat4s modelViewProjection(mat4s model, mat4s view, mat4s proj);

 i32 main(void) {
@@ -165,11 +169,22 @@ i32 main(void) {

 	wpFileRead(code, spirv, code_size);

-	// GpuLoadImageFromFileRequest load_img_req = {
-	// 	.command_pool = pool,
-	// 	.filename     = wpStr8LitRo("assets/collections.png"),
-	// };
-	// GpuImage *texture = gpuLoadImageFromFile(&arena, &temp_arena, load_img_req);
+	GpuLoadImageFromFileRequest load_img_req = {
+		.command_pool = pool,
+		.filename     = wpStr8LitRo("assets/collections.png"),
+	};
+	GpuImage *texture = gpuLoadImageFromFile(&arena, &temp_arena, load_img_req);
+
+	GpuSamplerCreateRequest sampler_req = {
+		.device = device,
+		.min_filter = GPU_FILTER_LINEAR,
+		.mag_filter = GPU_FILTER_LINEAR,
+		.address_mode_u = GPU_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
+		.address_mode_v = GPU_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
+		.address_mode_w = GPU_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
+		.mipmap_mode = GPU_SAMPLER_MIPMAP_MODE_LINEAR,
+	};
+	GpuSampler *sampler = gpuCreateSampler(&arena, sampler_req);

 	GpuShaderCreateRequest shader_request = {
 		.device = device,
@@ -194,7 +209,6 @@ i32 main(void) {

 	Camera camera = {
 		.position = { .x = 0.0f, .y = 0.0f, .z = 2.0f },
-		.target   = { 0 },
 		.up       = { 0.0f, 1.0f, 0.0f },
 	};
 	Projection projection = {
@@ -207,18 +221,10 @@ i32 main(void) {
 	ShaderDataArray data = wpArray(
 		ShaderData,
 		(ShaderData){
-			.mvp = modelViewProjection(
-				glms_translate(glms_mat4_identity(), translations[0]),
-				glms_lookat(camera.position, camera.target, camera.up),
-				glms_perspective(glm_rad(projection.fov_deg), projection.aspect, projection.near, projection.far)
-			),
+			.mvp = calculateModelViewProjection(translations[0], camera, projection),
 		},
 		(ShaderData){
-			.mvp = modelViewProjection(
-				glms_translate(glms_mat4_identity(), translations[1]),
-				glms_lookat(camera.position, camera.target, camera.up),
-				glms_perspective(glm_rad(projection.fov_deg), projection.aspect, projection.near, projection.far)
-			),
+			.mvp = calculateModelViewProjection(translations[1], camera, projection),
 		},
 	);
 	memcpy(shader_data.cpu_mapping, data, wpArrayItemSize(data) * wpArrayCount(data));
@@ -226,7 +232,8 @@ i32 main(void) {

 	GpuDescriptorPoolSizeArray pool_sizes = wpArray(
 		GpuDescriptorPoolSize,
-		(GpuDescriptorPoolSize){ .type = GPU_DESCRIPTOR_TYPE_STORAGE_BUFFER, .count = 1 }
+		(GpuDescriptorPoolSize){ .type = GPU_DESCRIPTOR_TYPE_STORAGE_BUFFER,         .count = 1 },
+		(GpuDescriptorPoolSize){ .type = GPU_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, .count = 1 }
 	);
 	GpuDescriptorPoolCreateRequest desc_pool_req = {
 		.descriptor_pool_sizes = pool_sizes,
@@ -242,6 +249,12 @@ i32 main(void) {
 			.type             = GPU_DESCRIPTOR_TYPE_STORAGE_BUFFER,
 			.descriptor_count = 1,
 			.stages           = GPU_SHADER_STAGE_VERTEX,
+		},
+		(GpuDescriptorSetBinding){
+			.binding          = 1,
+			.type             = GPU_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
+			.descriptor_count = 1,
+			.stages           = GPU_SHADER_STAGE_FRAGMENT,
 		}
 	);
 	GpuDescriptorSetLayoutCreateRequest desc_set_layout_req = {
@@ -259,14 +272,28 @@ i32 main(void) {
 	GpuDescriptorSetWriteInfo shader_data_write_info = {
 		.set             = descriptor_sets[0],
 		.descriptor_type = GPU_DESCRIPTOR_TYPE_STORAGE_BUFFER,
+		.dst_binding     = 0,
 		.buffer_infos    = wpArray(
 			GpuDescriptorBufferInfo,
 			(GpuDescriptorBufferInfo){ .buffer = &shader_data },
 		),
 	};
+	GpuDescriptorSetWriteInfo texture_write_info = {
+		.set             = descriptor_sets[0],
+		.descriptor_type = GPU_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
+		.dst_binding     = 1,
+		.image_infos     = wpArray(
+			GpuDescriptorImageInfo,
+			(GpuDescriptorImageInfo){
+				.image        = texture,
+				.image_layout = GPU_IMAGE_LAYOUT_READ_ONLY_OPTIMAL,
+				.sampler      = sampler,
+			}
+		),
+	};
 	GpuDescriptorSetWriteRequest desc_set_req = {
 		.device      = device,
-		.write_infos = wpArray(GpuDescriptorSetWriteInfo, shader_data_write_info),
+		.write_infos = wpArray(GpuDescriptorSetWriteInfo, shader_data_write_info, texture_write_info),
 	};
 	gpuWriteDescriptorSets(&temp_arena, desc_set_req);

@@ -295,12 +322,12 @@ i32 main(void) {
 			.offset   = offsetof(Vertex, color),
 			.format   = GPU_FORMAT_R32G32B32_SFLOAT,
 		},
-		// (GpuVertexInputAttribute){
-		// 	.location = 2,
-		// 	.binding  = 0,
-		// 	.offset   = offsetof(Vertex, uv),
-		// 	.format   = GPU_FORMAT_R32G32_SFLOAT,
-		// },
+		(GpuVertexInputAttribute){
+			.location = 2,
+			.binding  = 0,
+			.offset   = offsetof(Vertex, uv),
+			.format   = GPU_FORMAT_R32G32_SFLOAT,
+		},
 	);
 	GpuPipelineVertexInputStateInfo vert_info = {
 		.bindings   = wpArray(GpuVertexInputBinding, vert_binding),
@@ -376,63 +403,29 @@ i32 main(void) {

 		if (windowIsKeyPressed(KEYBOARD_KEY_UP)) {
 			camera.position.z -= 0.01f;
-			data[0].mvp           = modelViewProjection(
-				glms_translate(glms_mat4_identity(), translations[0]),
-				glms_lookat(camera.position, camera.target, camera.up),
-				glms_perspective(glm_rad(projection.fov_deg), projection.aspect, projection.near, projection.far)
-			);
-			data[1].mvp           = modelViewProjection(
-				glms_translate(glms_mat4_identity(), translations[1]),
-				glms_lookat(camera.position, camera.target, camera.up),
-				glms_perspective(glm_rad(projection.fov_deg), projection.aspect, projection.near, projection.far)
-			);
+			data[0].mvp        = calculateModelViewProjection(translations[0], camera, projection);
+			data[1].mvp        = calculateModelViewProjection(translations[1], camera, projection);
 			memcpy(shader_data.cpu_mapping, data, wpArrayItemSize(data) * wpArrayCount(data));
 			gpuFlushBuffer((GpuBufferFlushRequest){ .device = device, .buffer = shader_data });
 		}
 		if (windowIsKeyPressed(KEYBOARD_KEY_DOWN)) {
 			camera.position.z += 0.01f;
-			data[0].mvp           = modelViewProjection(
-				glms_translate(glms_mat4_identity(), translations[0]),
-				glms_lookat(camera.position, camera.target, camera.up),
-				glms_perspective(glm_rad(projection.fov_deg), projection.aspect, projection.near, projection.far)
-			);
-			data[1].mvp           = modelViewProjection(
-				glms_translate(glms_mat4_identity(), translations[1]),
-				glms_lookat(camera.position, camera.target, camera.up),
-				glms_perspective(glm_rad(projection.fov_deg), projection.aspect, projection.near, projection.far)
-			);
+			data[0].mvp        = calculateModelViewProjection(translations[0], camera, projection);
+			data[1].mvp        = calculateModelViewProjection(translations[1], camera, projection);
 			memcpy(shader_data.cpu_mapping, data, wpArrayItemSize(data) * wpArrayCount(data));
 			gpuFlushBuffer((GpuBufferFlushRequest){ .device = device, .buffer = shader_data });
 		}
 		if (windowIsKeyPressed(KEYBOARD_KEY_RIGHT)) {
 			camera.position.x += 0.01f;
-			camera.target.x   += 0.01f;
-			data[0].mvp           = modelViewProjection(
-				glms_translate(glms_mat4_identity(), translations[0]),
-				glms_lookat(camera.position, camera.target, camera.up),
-				glms_perspective(glm_rad(projection.fov_deg), projection.aspect, projection.near, projection.far)
-			);
-			data[1].mvp           = modelViewProjection(
-				glms_translate(glms_mat4_identity(), translations[1]),
-				glms_lookat(camera.position, camera.target, camera.up),
-				glms_perspective(glm_rad(projection.fov_deg), projection.aspect, projection.near, projection.far)
-			);
+			data[0].mvp        = calculateModelViewProjection(translations[0], camera, projection);
+			data[1].mvp        = calculateModelViewProjection(translations[1], camera, projection);
 			memcpy(shader_data.cpu_mapping, data, wpArrayItemSize(data) * wpArrayCount(data));
 			gpuFlushBuffer((GpuBufferFlushRequest){ .device = device, .buffer = shader_data });
 		}
 		if (windowIsKeyPressed(KEYBOARD_KEY_LEFT)) {
 			camera.position.x -= 0.01f;
-			camera.target.x   -= 0.01f;
-			data[0].mvp           = modelViewProjection(
-				glms_translate(glms_mat4_identity(), translations[0]),
-				glms_lookat(camera.position, camera.target, camera.up),
-				glms_perspective(glm_rad(projection.fov_deg), projection.aspect, projection.near, projection.far)
-			);
-			data[1].mvp           = modelViewProjection(
-				glms_translate(glms_mat4_identity(), translations[1]),
-				glms_lookat(camera.position, camera.target, camera.up),
-				glms_perspective(glm_rad(projection.fov_deg), projection.aspect, projection.near, projection.far)
-			);
+			data[0].mvp        = calculateModelViewProjection(translations[0], camera, projection);
+			data[1].mvp        = calculateModelViewProjection(translations[1], camera, projection);
 			memcpy(shader_data.cpu_mapping, data, wpArrayItemSize(data) * wpArrayCount(data));
 			gpuFlushBuffer((GpuBufferFlushRequest){ .device = device, .buffer = shader_data });
 		}
@@ -626,7 +619,8 @@ i32 main(void) {
 	gpuDestroyDescriptorPool(desc_pool);
 	gpuDestroyBuffer(&shader_data);
 	gpuDestroyShader(shader);
-	// gpuDestroyImage(texture);
+	gpuDestroySampler(sampler);
+	gpuDestroyImage(texture);
 	gpuDestroyCommandPool(pool);
 	gpuDestroyBuffer(&vert_idx_buffer);
 	gpuDestroySwapchain(swapchain);
@@ -645,6 +639,19 @@ i32 main(void) {
 	return ERROR_NONE;
 }

+wp_intern mat4s calculateModelViewProjection(vec3s translation, Camera camera, Projection projection) {
+	vec3s target = {
+		.x = camera.position.x,
+		.y = camera.position.y,
+		.z = camera.position.z - 2.0f
+	};
+	return modelViewProjection(
+		glms_translate(glms_mat4_identity(), translation),
+		glms_lookat(camera.position, target, camera.up),
+		glms_perspective(glm_rad(projection.fov_deg), projection.aspect, projection.near, projection.far)
+	);
+}
+
 wp_intern mat4s modelViewProjection(mat4s model, mat4s view, mat4s proj) {
 	// Matrix to flip the Y-axis since in Vulkan Y points down
 	mat4s clip = {
@@ -1,7 +1,7 @@
 struct VSInput {
 	float3 Pos;
 	float3 Color;
-	// float2 Uv;
+	float2 Uv;
 };

 struct ShaderData {
@@ -9,20 +9,25 @@ struct ShaderData {
 };
 StructuredBuffer<ShaderData> data;

+Sampler2D texture;
+
 struct VertexOutput {
-	float3 Color;
 	float4 sv_position : SV_Position;
+	float3 Color;
+	float2 Uv;
 };

 [shader("vertex")]
 VertexOutput vertMain(VSInput input, uint idx: SV_InstanceID) {
 	VertexOutput output;
-	output.Color       = input.Color;
 	output.sv_position = mul(data[idx].mvp, float4(input.Pos, 1.0));
+	output.Color       = input.Color;
+	output.Uv          = input.Uv;
 	return output;
 }

 [shader("fragment")]
 float4 fragMain(VertexOutput inVert) : SV_Target {
-	return float4(inVert.Color, 1.0);
+	float4 color = texture.Sample(inVert.Uv) * float4(inVert.Color, 1.0f);
+	return color;
 }
Author	SHA1	Message	Date
abdelrahman	136853328a	Render texture and fix camera target	2026-11-01 17:38:22 +00:00
abdelrahman	9536dbc550	Copy the temp buffer to the output image	2026-11-01 03:03:30 +00:00
abdelrahman	466e0345b8	Silence some warnings	2026-11-01 01:31:25 +00:00