feat: initial terrain prototype

Author: hoffstadt

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -103,6 +103,7 @@ body:
         - Starter
         - Stats
         - String Intern
+        - Terrain
         - Tools
         - UI
         - Virtual File System

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -72,6 +72,7 @@ body:
         - Starter
         - Stats
         - String Intern
+        - Terrain
         - Tools
         - UI
         - Virtual File System

.github/workflows/build.yml

@@ -191,6 +191,7 @@ jobs:
         if not exist ../out/pl_dxt_ext.dll exit 1
         if not exist ../out/pl_material_ext.dll exit 1
         if not exist ../out/pl_script_ext.dll exit 1
+        if not exist ../out/pl_terrain_ext.dll exit 1
         cd ..
 
     - name: Package Pilot Light
@@ -399,6 +400,7 @@ jobs:
         test -f ./out/pl_dxt_ext.dylib || exit 1
         test -f ./out/pl_material_ext.dylib || exit 1
         test -f ./out/pl_script_ext.dylib || exit 1
+        test -f ./out/pl_terrain_ext.dylib || exit 1
 
     - name: Package Pilot Light
       run: |
@@ -618,6 +620,7 @@ jobs:
         test -f ./out/pl_dxt_ext.so || exit 1
         test -f ./out/pl_material_ext.so || exit 1
         test -f ./out/pl_script_ext.so || exit 1
+        test -f ./out/pl_terrain_ext.so || exit 1
 
     - name: Package Pilot Light
       run: |

docs/version.txt

@@ -103,3 +103,4 @@ the API is complete. It just means we won't break what currently exists.
 * Dear ImGui          v0.1.0 (pl_dear_imgui_ext.h)
 * Animation           v0.1.0 (pl_animation_ext.h)
 * Material            v0.1.0 (pl_material_ext.h)
+* Terrain             v0.1.0 (pl_terrain_ext.h)

extensions/pl_renderer_ext.c

@@ -5171,6 +5171,7 @@ pl_load_renderer_ext(plApiRegistryI* ptApiRegistry, bool bReload)
         gptVfs           = pl_get_api_latest(ptApiRegistry, plVfsI);
         gptStarter       = pl_get_api_latest(ptApiRegistry, plStarterI);
         gptMaterial      = pl_get_api_latest(ptApiRegistry, plMaterialI);
+        gptTerrain       = pl_get_api_latest(ptApiRegistry, plTerrainI);
     #endif
 
     if(bReload)

extensions/pl_renderer_internal.h

@@ -59,6 +59,7 @@ Index of this file:
 #include "pl_vfs_ext.h"
 #include "pl_starter_ext.h"
 #include "pl_material_ext.h"
+#include "pl_terrain_ext.h"
 
 // shader interop
 #include "pl_shader_interop_renderer.h"
@@ -113,6 +114,7 @@ Index of this file:
     static const plMeshI*          gptMesh          = NULL;
     static const plShaderVariantI* gptShaderVariant = NULL;
     static const plMaterialI*      gptMaterial      = NULL;
+    static const plTerrainI*       gptTerrain       = NULL;
 
     static struct _plIO* gptIO = 0;
 #endif
@@ -338,6 +340,9 @@ typedef struct _plView
 
     // shadows
     plDirectionLightShadowData tDirectionLightShadowData;
+
+    // terrain
+    plTerrain* ptTerrain;
 } plView;
 
 typedef struct _plScene