init

framework/rendering/subpasses/forward_subpass.h

@@ -0,0 +1,70 @@
+/* Copyright (c) 2018-2025, Arm Limited and Contributors
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 the "License";
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "buffer_pool.h"
+#include "rendering/subpasses/geometry_subpass.h"
+
+// This value is per type of light that we feed into the shader
+#define MAX_FORWARD_LIGHT_COUNT 8
+
+namespace vkb
+{
+namespace sg
+{
+class Scene;
+class Node;
+class Mesh;
+class SubMesh;
+class Camera;
+}        // namespace sg
+
+struct alignas(16) ForwardLights
+{
+	vkb::rendering::Light directional_lights[MAX_FORWARD_LIGHT_COUNT];
+	vkb::rendering::Light point_lights[MAX_FORWARD_LIGHT_COUNT];
+	vkb::rendering::Light spot_lights[MAX_FORWARD_LIGHT_COUNT];
+};
+
+/**
+ * @brief This subpass is responsible for rendering a Scene
+ */
+class ForwardSubpass : public GeometrySubpass
+{
+  public:
+	/**
+	 * @brief Constructs a subpass designed for forward rendering
+	 * @param render_context Render context
+	 * @param vertex_shader Vertex shader source
+	 * @param fragment_shader Fragment shader source
+	 * @param scene Scene to render on this subpass
+	 * @param camera Camera used to look at the scene
+	 */
+	ForwardSubpass(RenderContext &render_context, ShaderSource &&vertex_shader, ShaderSource &&fragment_shader, sg::Scene &scene, sg::Camera &camera);
+
+	virtual ~ForwardSubpass() = default;
+
+	virtual void prepare() override;
+
+	/**
+	 * @brief Record draw commands
+	 */
+	virtual void draw(vkb::core::CommandBufferC &command_buffer) override;
+};
+
+}        // namespace vkb