From 7abe3894137f55aaa7aa0e0c491795342b6124bc Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Wed, 26 Aug 2026 17:39:17 +0200
Subject: feat(engine): add cube map support to UpdateTexture rendering
 commmand

---
 engine/src/rendering/backend/opengl.rs | 61 +++++++++++++++++++++++++---------
 1 file changed, 46 insertions(+), 15 deletions(-)

(limited to 'engine/src/rendering/backend/opengl.rs')

diff --git a/engine/src/rendering/backend/opengl.rs b/engine/src/rendering/backend/opengl.rs
index 8d7710a..629c0ba 100644
--- a/engine/src/rendering/backend/opengl.rs
+++ b/engine/src/rendering/backend/opengl.rs
@@ -116,6 +116,7 @@ use crate::rendering::{
     Surface,
     SurfaceId,
     TargetWindow,
+    TextureUpdate,
     POST_RENDER_PHASE,
     RENDER_PHASE,
 };
@@ -794,10 +795,15 @@ fn handle_commands(
                     tracing::error!("Failed to create texture object: {err}");
                 }
             }
-            Command::UpdateTexture { obj_id, image, offset } => {
-                if let Err(err) =
-                    update_texture_object(gl_context, object_store, obj_id, image, offset)
-                {
+            Command::UpdateTexture { obj_id, image, update, offset } => {
+                if let Err(err) = update_texture_object(
+                    gl_context,
+                    object_store,
+                    obj_id,
+                    image,
+                    update,
+                    offset,
+                ) {
                     tracing::error!("Failed to update texture object: {err}");
                 }
             }
@@ -1357,6 +1363,7 @@ fn update_texture_object(
     object_store: &mut ObjectStore,
     texture_object_id: ObjectId,
     texture_image: Image,
+    update: TextureUpdate,
     offset: Vec2<u32>,
 ) -> Result<(), GlTextureError>
 {
@@ -1378,17 +1385,41 @@ fn update_texture_object(
 
     let gl_texture = GlTexture::from_raw(texture_obj.as_raw());
 
-    gl_texture.store_image_2d(
-        curr_gl_ctx,
-        0,
-        offset.into(),
-        texture_image.dimensions().into(),
-        create_pixel_data_format(ImageDataProperties {
-            color_type: texture_image.color_type(),
-            is_srgb: texture_image.color_space_is_srgb(),
-        }),
-        texture_image.as_bytes(),
-    )?;
+    match update {
+        TextureUpdate::Texture2D => {
+            gl_texture.store_image_2d(
+                curr_gl_ctx,
+                0,
+                offset.into(),
+                texture_image.dimensions().into(),
+                create_pixel_data_format(ImageDataProperties {
+                    color_type: texture_image.color_type(),
+                    is_srgb: texture_image.color_space_is_srgb(),
+                }),
+                texture_image.as_bytes(),
+            )?;
+        }
+        TextureUpdate::CubeMap { face } => {
+            let image_dimens = texture_image.dimensions();
+
+            gl_texture.store_image_3d(
+                curr_gl_ctx,
+                0,
+                Vec3 {
+                    x: offset.x,
+                    y: offset.y,
+                    z: cube_map_texture_face_to_gl(face) as u32,
+                }
+                .into(),
+                [image_dimens.width, image_dimens.height, 1],
+                create_pixel_data_format(ImageDataProperties {
+                    color_type: texture_image.color_type(),
+                    is_srgb: texture_image.color_space_is_srgb(),
+                }),
+                texture_image.as_bytes(),
+            )?;
+        }
+    }
 
     gl_texture.generate_mipmap(curr_gl_ctx);
 
-- 
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