let opengl print an triangle

2020-01-21 20:37:48 +01:00
parent 8aaf31c114
commit 1c6a499127
2 changed files with 142 additions and 11 deletions
--- a/index.html
+++ b/index.html
@@ -2,6 +2,21 @@
 <html>
    <header>
        <title>Web Ocean</title>
+        <script id="shader-fs" type="x-shader/x-fragment"> 
+            precision mediump float;
+        
+            void main(void) {
+                gl_FragColor = vec4(0.6,0.6,0.6,1.0);
+            }
+        </script> 
+         
+        <script id="shader-vs" type="x-shader/x-vertex"> 
+            attribute vec3 positionAttr;
+         
+            void main(void) {
+                gl_Position = vec4(positionAttr, 1.0);
+            }
+        </script> 
    </header>
    <body>
        <canvas id="window" width="800" height="600" style="margin:0 auto; border: solid #000000 1px; display:block;"></canvas>