From 5bf60cfa824de6894a75c5af72ad3ca4c93061b0 Mon Sep 17 00:00:00 2001
From: minjaesong <alswo9628@gmail.com>
Date: Sun, 24 Nov 2024 13:19:20 +0900
Subject: [PATCH] now terrain also lives on its own framebuffer

---
 .../terrarum/modulebasegame/IngameRenderer.kt | 20 +++++++++++++++----
 .../modulebasegame/console/ExportFBO.kt       |  9 +++++++--
 2 files changed, 23 insertions(+), 6 deletions(-)

diff --git a/src/net/torvald/terrarum/modulebasegame/IngameRenderer.kt b/src/net/torvald/terrarum/modulebasegame/IngameRenderer.kt
index 394482e0e..e7313ac2b 100644
--- a/src/net/torvald/terrarum/modulebasegame/IngameRenderer.kt
+++ b/src/net/torvald/terrarum/modulebasegame/IngameRenderer.kt
@@ -77,7 +77,8 @@ object IngameRenderer : Disposable {
     private lateinit var fboMixedOut: Float16FrameBuffer
 
     private lateinit var fboRGBactorsBehind: Float16FrameBuffer // for small shadow eff; A channel is for glow effects so they don't get shadow effects
-    private lateinit var fboRGBactorsMiddle: Float16FrameBuffer // for large shadew eff; A channel is for glow effects so they don't get shadow effects
+    private lateinit var fboRGBactorsMiddle: Float16FrameBuffer // for large shadow eff; A channel is for glow effects so they don't get shadow effects
+    private lateinit var fboRGBterrain: Float16FrameBuffer // for large shadow eff; A channel is for glow effects so they don't get shadow effects
 
     private lateinit var rgbTex: TextureRegion
     private lateinit var aTex: TextureRegion
@@ -526,6 +527,12 @@ object IngameRenderer : Disposable {
             }
         }
 
+        fboRGBterrain.inAction(camera, batch) {
+            clearBuffer()
+            setCameraPosition(0f, 0f)
+            BlocksDrawer.drawTerrain(batch.projectionMatrix, false)
+        }
+
 
         fboRGB.inAction(camera, batch) {
             setCameraPosition(0f, 0f)
@@ -546,10 +553,13 @@ object IngameRenderer : Disposable {
                 particlesContainer?.forEach { it.drawBody(frameDelta, batch) }
             }
 
-            setCameraPosition(0f, 0f)
-            BlocksDrawer.drawTerrain(batch.projectionMatrix, false)
+            batch.inUse {
+                batch.shader = null
+                batch.color = Color.WHITE
+                setCameraPosition(0f, 0f)
+                batch.drawFlipped(fboRGBterrain.colorBufferTexture, 0f, 0f)
+            }
 
-            batch.shader = shaderForActors
             batch.inUse {
                 batch.shader = shaderForActors
                 batch.color = Color.WHITE
@@ -1250,6 +1260,7 @@ object IngameRenderer : Disposable {
         fboMixedOut = Float16FrameBuffer(width, height, false)
         fboRGBactorsBehind = Float16FrameBuffer(width, height, false)
         fboRGBactorsMiddle = Float16FrameBuffer(width, height, false)
+        fboRGBterrain = Float16FrameBuffer(width, height, false)
         lightmapFbo = Float16FrameBuffer(
                 LightmapRenderer.lightBuffer.width * LightmapRenderer.DRAW_TILE_SIZE.toInt(),
                 LightmapRenderer.lightBuffer.height * LightmapRenderer.DRAW_TILE_SIZE.toInt(),
@@ -1314,6 +1325,7 @@ object IngameRenderer : Disposable {
         if (::lightmapFbo.isInitialized) lightmapFbo.tryDispose()
         if (::fboRGBactorsBehind.isInitialized) fboRGBactorsBehind.tryDispose()
         if (::fboRGBactorsMiddle.isInitialized) fboRGBactorsMiddle.tryDispose()
+        if (::fboRGBterrain.isInitialized) fboRGBterrain.tryDispose()
 
         blurtex0.tryDispose()
 
diff --git a/src/net/torvald/terrarum/modulebasegame/console/ExportFBO.kt b/src/net/torvald/terrarum/modulebasegame/console/ExportFBO.kt
index 383d1ae15..e3b8fd215 100644
--- a/src/net/torvald/terrarum/modulebasegame/console/ExportFBO.kt
+++ b/src/net/torvald/terrarum/modulebasegame/console/ExportFBO.kt
@@ -104,14 +104,19 @@ internal object ExportFBO : ConsoleCommand {
     }
 
     @ExportFBOCmd("Framebuffer for render-behind actors used for creating shallow shadow effects")
-    fun fboergbactorsbehind(): FrameBuffer {
+    fun fborgbactorsbehind(): FrameBuffer {
         return IngameRenderer.extortField<Float16FrameBuffer>("fboRGBactorsBehind")!!
     }
 
     @ExportFBOCmd("Framebuffer for render-middle actors used for creating large shadow effects")
-    fun fboergbactorsmiddle(): FrameBuffer {
+    fun fborgbactorsmiddle(): FrameBuffer {
         return IngameRenderer.extortField<Float16FrameBuffer>("fboRGBactorsMiddle")!!
     }
+
+    @ExportFBOCmd("Framebuffer for terrain blocks used for creating large shadow effects")
+    fun fborgbterrain(): FrameBuffer {
+        return IngameRenderer.extortField<Float16FrameBuffer>("fboRGBterrain")!!
+    }
 }
 
 internal annotation class ExportFBOCmd(val description: String)
\ No newline at end of file