From 7147f1793e566be5caf2698703e2ecb5cd91fcec Mon Sep 17 00:00:00 2001
From: EmeraldLockdown <emeraldlockdown.swifty@gmail.com>
Date: Fri, 3 Jul 2026 13:17:51 -0500
Subject: [PATCH] Include uModelViewMatrix to help combat precision loss

---
 src/pc/gfx/gfx_pc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/pc/gfx/gfx_pc.c b/src/pc/gfx/gfx_pc.c
index 7c1fa3b58..6eb84ec94 100644
--- a/src/pc/gfx/gfx_pc.c
+++ b/src/pc/gfx/gfx_pc.c
@@ -2443,6 +2443,9 @@ void gfx_update_fog_uniforms(void) {
 
 void gfx_update_matrices(void) {
     gfx_rapi->set_uniform(NULL, "uModelViewProjectionMatrix", SHADER_UNIFORM_TYPE_MAT4, rsp.MVP_matrix, 1);
+    if (rsp.modelview_matrix_stack_size > 0) {
+        gfx_rapi->set_uniform(NULL, "uModelViewMatrix", SHADER_UNIFORM_TYPE_MAT4, rsp.modelview_matrix_stack[rsp.modelview_matrix_stack_size - 1], 1);
+    }
     gfx_rapi->set_uniform(NULL, "uModelMatrix", SHADER_UNIFORM_TYPE_MAT4, rsp.M_matrix, 1);
     gfx_rapi->set_uniform(NULL, "uViewMatrix", SHADER_UNIFORM_TYPE_MAT4, rsp.V_matrix, 1);
     gfx_rapi->set_uniform(NULL, "uProjectionMatrix", SHADER_UNIFORM_TYPE_MAT4, rsp.P_matrix, 1);