Switch from OpenGL ES 3 to 2.

2 files changed, 8 insertions, 10 deletions

diff --git a/shaders/frag.frag b/shaders/frag.frag
index c6bdbde..3528c6c 100644
--- a/shaders/frag.frag
+++ b/shaders/frag.frag
@@ -1,4 +1,4 @@
-#version 300 es
+#version 100
 
 /*
  * Copyright (C) 2021 Philip Jones
@@ -11,15 +11,13 @@
  * I don't think you can really copyright this shader though :)
  */
 
-precision highp float;
+precision mediump float;
 
-in vec2 Texcoord;
-
-out vec4 FragColor;
+varying vec2 Texcoord;
 
 uniform sampler2D tex;
 
 void main()
 {
-	FragColor = texture(tex, Texcoord);
+	gl_FragColor = texture2D(tex, Texcoord);
 }
diff --git a/shaders/vert.vert b/shaders/vert.vert
index 9d62b85..9d3a0eb 100644
--- a/shaders/vert.vert
+++ b/shaders/vert.vert
@@ -1,4 +1,4 @@
-#version 300 es
+#version 100
 
 /*
  * Copyright (C) 2017-2020 Philip Jones
@@ -10,10 +10,10 @@
  *
  */
 
-in vec2 position;
-in vec2 texcoord;
+attribute vec2 position;
+attribute vec2 texcoord;
 
-out vec2 Texcoord;
+varying vec2 Texcoord;
 
 void main()
 {