From 4e04db0045ec096966f77c07b13a0fd2c5c5975d Mon Sep 17 00:00:00 2001
From: kichikuou <KichikuouChrome@gmail.com>
Date: Thu, 17 Oct 2024 08:28:39 +0900
Subject: [PATCH] 3d: Implement MESH_BOTH attribute

It disables back-face culling.
---
 src/3d/renderer.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/3d/renderer.c b/src/3d/renderer.c
index 872ef4f..4733890 100644
--- a/src/3d/renderer.c
+++ b/src/3d/renderer.c
@@ -436,11 +436,16 @@ static void render_model(struct RE_instance *inst, struct RE_renderer *r, enum d
 
 		glBindVertexArray(mesh->vao);
 
+		if (mesh->flags & MESH_BOTH)
+			glDisable(GL_CULL_FACE);
+
 		if (mesh->nr_indices)
 			glDrawElements(GL_TRIANGLES, mesh->nr_indices, GL_UNSIGNED_SHORT, NULL);
 		else
 			glDrawArrays(GL_TRIANGLES, 0, mesh->nr_vertices);
 
+		if (mesh->flags & MESH_BOTH)
+			glEnable(GL_CULL_FACE);
 		glBindVertexArray(0);
 		glBindTexture(GL_TEXTURE_2D, 0);
 	}