From 65d74bdb26af833b5380046dec204f685f745cc1 Mon Sep 17 00:00:00 2001
From: Omniscient <omniscient.oce@gmail.com>
Date: Thu, 11 Jul 2024 18:03:29 +1000
Subject: changing styles plus simplifying a bit

---
 src/new_render/pbr.h     | 60 ++++++++++++++++++++++++++++++++++++++++++++++++
 src/new_render/shadows.h | 30 ++++++++++++++++++++++++
 2 files changed, 90 insertions(+)
 create mode 100644 src/new_render/pbr.h
 create mode 100644 src/new_render/shadows.h

(limited to 'src/new_render')

diff --git a/src/new_render/pbr.h b/src/new_render/pbr.h
new file mode 100644
index 0000000..dd29301
--- /dev/null
+++ b/src/new_render/pbr.h
@@ -0,0 +1,60 @@
+/**
+ * @file pbr.h
+ * @brief PBR render pass
+ */
+
+#pragma once
+#include "defines.h"
+#include "camera.h"
+#include "maths_types.h"
+#include "ral/ral.h"
+#include "ral/ral_common.h"
+
+// PBR;
+
+// --- Public API
+typedef struct PBR_Storage PBR_Storage; // Stores all necessary data and handles
+
+PUB void PBR_Init(PBR_Storage* storage);
+
+// NOTE: For simplicity's sake we will render this pass directly to the default framebuffer
+PUB void PBR_Run(
+    PBR_Storage* storage
+    // light data
+    // camera
+    // geometry
+    // materials
+);
+
+typedef struct PBR_Params {
+  Vec3 albedo;
+  f32 metallic;
+  f32 roughness;
+  f32 ao;
+} PBR_Params;
+
+typedef struct PBR_Textures {
+  TextureHandle albedo_map;
+  TextureHandle normal_map;
+  bool metal_roughness_combined;
+  TextureHandle metallic_map;
+  TextureHandle roughness_map;
+  TextureHandle ao_map;
+} PBR_Textures;
+
+// --- Internal
+
+
+GPU_Renderpass* PBR_RPassCreate();
+GPU_Pipeline* PBR_PipelineCreate(GPU_Renderpass* rpass);
+void PBR_Execute(
+    PBR_Storage* storage,
+    Camera camera,
+    TextureHandle shadowmap_tex,
+    MaterialMap* materials, // map of String -> Material
+    RenderEnt* entities,
+    size_t entity_count
+
+);
+
+// Internally this will need to update material parameters
diff --git a/src/new_render/shadows.h b/src/new_render/shadows.h
new file mode 100644
index 0000000..4f10f35
--- /dev/null
+++ b/src/new_render/shadows.h
@@ -0,0 +1,30 @@
+/**
+ * @file shadows.h
+ * @brief Functions for adding shadows to scene rendering.
+*/
+
+
+#pragma once
+#include "defines.h"
+#include "ral/ral_types.h"
+
+typedef struct Shadow_Storage Shadow_Storage;
+
+typedef struct RenderEnt RenderEnt;
+typedef struct Camera Camera;
+typedef struct Mat4 Mat4;
+
+// --- Public API
+PUB void Shadow_Init(Shadow_Storage* storage);
+
+/** @brief Run shadow map generation for given entities, and store in a texture.
+ *  @note Uses active directional light for now */
+PUB void Shadow_Run(Shadow_Storage* storage, RenderEnt* entities, size_t entity_count);
+
+/** @brief Get the shadow texture generated from shadowmap pass */
+PUB Handle Shadow_GetShadowMapTexture(Shadow_Storage* storage);
+
+// --- Internal
+GPU_Renderpass* Shadow_RPassCreate(); // Creates the render pass
+GPU_Pipeline*   Shadow_PipelineCreate(GPU_Renderpass* rpass); // Creates the pipeline
+void Shadow_ShadowmapExecute(Shadow_Storage* storage, Mat4 light_space_transform, RenderEnt* entites, size_t entity_count);
-- 
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