From 7ab1f6d10cae83db950224b3ee796cb6bcde3f0d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ga=C3=ABtan=20Renaudeau?= <renaudeau.gaetan@gmail.com>
Date: Sun, 12 Jun 2016 20:47:16 +0200
Subject: [PATCH] Using 'a big triangle' rather than '2 triangles'

see https://github.com/ProjectSeptemberInc/gl-react/issues/60
---
 .../main/java/com/projectseptember/RNGL/GLCanvas.java    | 2 +-
 .../main/java/com/projectseptember/RNGL/GLShader.java    | 9 +++------
 ios/GLCanvas.m                                           | 2 +-
 ios/GLShader.m                                           | 7 ++-----
 4 files changed, 7 insertions(+), 13 deletions(-)

diff --git a/android/src/main/java/com/projectseptember/RNGL/GLCanvas.java b/android/src/main/java/com/projectseptember/RNGL/GLCanvas.java
index ae36001..7016a1a 100644
--- a/android/src/main/java/com/projectseptember/RNGL/GLCanvas.java
+++ b/android/src/main/java/com/projectseptember/RNGL/GLCanvas.java
@@ -723,7 +723,7 @@ public class GLCanvas extends GLSurfaceView
 
         glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
         glClear(GL_COLOR_BUFFER_BIT);
-        glDrawArrays(GL_TRIANGLES, 0, 6);
+        glDrawArrays(GL_TRIANGLES, 0, 3);
     }
 
     private void render () {
diff --git a/android/src/main/java/com/projectseptember/RNGL/GLShader.java b/android/src/main/java/com/projectseptember/RNGL/GLShader.java
index 15f95f6..90435eb 100644
--- a/android/src/main/java/com/projectseptember/RNGL/GLShader.java
+++ b/android/src/main/java/com/projectseptember/RNGL/GLShader.java
@@ -189,12 +189,9 @@ public class GLShader {
         glBindBuffer(GL_ARRAY_BUFFER, buffer[0]);
 
         float buf[] = {
-                -1.0f, -1.0f,
-                1.0f, -1.0f,
-                -1.0f,  1.0f,
-                -1.0f,  1.0f,
-                1.0f, -1.0f,
-                1.0f,  1.0f
+            -1.0f, -1.0f,
+            -1.0f, 4.0f,
+             4.0f,  -1.0f
         };
         FloatBuffer bufferData = ByteBuffer.allocateDirect(buf.length * 4)
                 .order(ByteOrder.nativeOrder())
diff --git a/ios/GLCanvas.m b/ios/GLCanvas.m
index e6eb4b2..affe1a2 100644
--- a/ios/GLCanvas.m
+++ b/ios/GLCanvas.m
@@ -520,7 +520,7 @@ RCT_NOT_IMPLEMENTED(-init)
       RCT_PROFILE_BEGIN_EVENT(0, @"draw", nil);
       glClearColor(0.0, 0.0, 0.0, 0.0);
       glClear(GL_COLOR_BUFFER_BIT);
-      glDrawArrays(GL_TRIANGLES, 0, 6);
+      glDrawArrays(GL_TRIANGLES, 0, 3);
       RCT_PROFILE_END_EVENT(0, @"gl", nil);
 
       RCT_PROFILE_END_EVENT(0, @"gl", nil);
diff --git a/ios/GLShader.m b/ios/GLShader.m
index 5f0ac9d..5780018 100644
--- a/ios/GLShader.m
+++ b/ios/GLShader.m
@@ -389,11 +389,8 @@ GLuint compileShader (NSString* shaderName, NSString* shaderString, GLenum shade
   glBindBuffer(GL_ARRAY_BUFFER, buffer);
   GLfloat buf[] = {
     -1.0, -1.0,
-    1.0, -1.0,
-    -1.0,  1.0,
-    -1.0,  1.0,
-    1.0, -1.0,
-    1.0,  1.0
+    -1.0, 4.0,
+     4.0,  -1.0
   };
   glBufferData(GL_ARRAY_BUFFER, sizeof(buf), buf, GL_STATIC_DRAW);
     
-- 
2.26.2