diff --git a/source/blender/editors/sculpt_paint/paint_utils.c b/source/blender/editors/sculpt_paint/paint_utils.c
index 18ecd0cec84..c3f555e032b 100644
--- a/source/blender/editors/sculpt_paint/paint_utils.c
+++ b/source/blender/editors/sculpt_paint/paint_utils.c
@@ -179,16 +179,13 @@ float paint_calc_object_space_radius(ViewContext *vc, const float center[3],
 
 float paint_get_tex_pixel(MTex *mtex, float u, float v, struct ImagePool *pool)
 {
-	TexResult texres = {0};
+	float intensity, rgba[4];
 	float co[3] = {u, v, 0.0f};
-	int hasrgb;
 
-	hasrgb = multitex_ext(mtex->tex, co, NULL, NULL, 0, &texres, pool);
+	externtex(mtex, co, &intensity,
+		                   rgba, rgba + 1, rgba + 2, rgba + 3, 0, pool);
 
-	if (hasrgb & TEX_RGB)
-		texres.tin = rgb_to_grayscale(&texres.tr) * texres.ta;
-
-	return texres.tin;
+	return intensity;
 }
 
 void paint_get_tex_pixel_col(MTex *mtex, float u, float v, float rgba[4], struct ImagePool *pool)