From da8f9ecbb9a2dab21f20f967ece0366cb79bde4f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jo=C3=A3o=20Capucho?= <jcapucho7@gmail.com>
Date: Sat, 6 Feb 2021 18:47:42 +0000
Subject: [PATCH] Add support for more math functions in glsl-in

---
 src/front/glsl/functions.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/front/glsl/functions.rs b/src/front/glsl/functions.rs
index 7238cac128..71ae619af3 100644
--- a/src/front/glsl/functions.rs
+++ b/src/front/glsl/functions.rs
@@ -109,14 +109,16 @@ impl Program {
                             statements: fc.args.into_iter().flat_map(|a| a.statements).collect(),
                         })
                     }
-                    "pow" => {
+                    "pow" | "dot" | "max" => {
                         if fc.args.len() != 2 {
-                            return Err(ErrorKind::WrongNumberArgs(name, 3, fc.args.len()));
+                            return Err(ErrorKind::WrongNumberArgs(name, 2, fc.args.len()));
                         }
                         Ok(ExpressionRule {
                             expression: self.context.expressions.append(Expression::Math {
                                 fun: match name.as_str() {
                                     "pow" => MathFunction::Pow,
+                                    "dot" => MathFunction::Dot,
+                                    "max" => MathFunction::Max,
                                     _ => unreachable!(),
                                 },
                                 arg: fc.args[0].expression,