Merge pull request #159 from JingyuanZhang/master

chore(webgl): update vertex buffer data & del useless point and stride

Author: JingyuanZhang

packages/paddlejs-backend-webgl/src/ops/vShader.ts

@@ -30,10 +30,10 @@ const vShaderSource = [
     `];
 
 const vShaderData = new Float32Array([
-    -1.0, 1.0, 0.0, 1.0,
-    -1.0, -1.0, 0.0, 0.0,
-    1.0, 1.0, 1.0, 1.0,
-    1.0, -1.0, 1.0, 0.0
+    -1.0, 1.0,
+    -1.0, -1.0,
+    1.0, 1.0,
+    1.0, -1.0
 ]);
 
 export { vShaderSource, vShaderData };

packages/paddlejs-backend-webgl/src/webgl/WebGLProgram.ts

@@ -66,6 +66,6 @@ export default class GLProgram {
         gl.enableVertexAttribArray(aPosition);
         // Bind the position buffer.
         gl.bindBuffer(gl.ARRAY_BUFFER, vertexBuffer);
-        gl.vertexAttribPointer(aPosition, 2, gl.FLOAT, false, 16, 0);
+        gl.vertexAttribPointer(aPosition, 2, gl.FLOAT, false, 0, 0);
     }
 }