From 625b78bba16dcbbe97fa84bbf8f2273472d79ade Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Thu, 6 Mar 2025 00:25:22 +0000
Subject: Pass frustum into render functions

Support for culling objects outside the view frustum
---
 gfx/gl/sceneProvider.h   | 3 ++-
 gfx/gl/sceneRenderer.cpp | 2 +-
 gfx/renderable.h         | 3 ++-
 3 files changed, 5 insertions(+), 3 deletions(-)

(limited to 'gfx')

diff --git a/gfx/gl/sceneProvider.h b/gfx/gl/sceneProvider.h
index f5e8e99..93b384f 100644
--- a/gfx/gl/sceneProvider.h
+++ b/gfx/gl/sceneProvider.h
@@ -5,6 +5,7 @@
 class SceneRenderer;
 class ShadowMapper;
 class SceneShader;
+class Frustum;
 
 class SceneProvider {
 public:
@@ -12,7 +13,7 @@ public:
 	virtual ~SceneProvider() = default;
 	DEFAULT_MOVE_COPY(SceneProvider);
 
-	virtual void content(const SceneShader &) const = 0;
+	virtual void content(const SceneShader &, const Frustum &) const = 0;
 	virtual void environment(const SceneShader &, const SceneRenderer &) const;
 	virtual void lights(const SceneShader &) const = 0;
 	virtual void shadows(const ShadowMapper &) const;
diff --git a/gfx/gl/sceneRenderer.cpp b/gfx/gl/sceneRenderer.cpp
index b2a7d78..188c4fd 100644
--- a/gfx/gl/sceneRenderer.cpp
+++ b/gfx/gl/sceneRenderer.cpp
@@ -71,7 +71,7 @@ SceneRenderer::render(const SceneProvider & scene) const
 	glEnable(GL_DEPTH_TEST);
 	glClearColor(0, 0, 0, 1);
 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-	scene.content(shader);
+	scene.content(shader, camera);
 
 	// Environment pass -
 	// * ambient - clears illumination texture - see setAmbientLight
diff --git a/gfx/renderable.h b/gfx/renderable.h
index 83522e3..9fbeccd 100644
--- a/gfx/renderable.h
+++ b/gfx/renderable.h
@@ -3,6 +3,7 @@
 #include <special_members.h>
 
 class SceneShader;
+class Frustum;
 class ShadowMapper;
 class ShadowStenciller;
 
@@ -12,7 +13,7 @@ public:
 	virtual ~Renderable() = default;
 	DEFAULT_MOVE_COPY(Renderable);
 
-	virtual void render(const SceneShader & shader) const = 0;
+	virtual void render(const SceneShader & shader, const Frustum &) const = 0;
 	virtual void lights(const SceneShader & shader) const;
 	virtual void shadows(const ShadowMapper & shadowMapper) const;
 
-- 
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