/src/main/res/raw/main_vertex_shader.glsl - Diff - Distorted Android

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Revision 604b2899

Dynamic display of bounding rectangles (with coords computed by Vertex Shader and gotten with Transform Feedback) works now.

Major problem: the glMapBufferRange() slows doewn rendering in a major way. Multiblur's FPS:

Nexus5X : 35.4 before -> 12.6 after
Nexus4 26.5 before -> ~12 after

     in vec3 a_Normal;                    // Per-vertex normal vector.
     in vec2 a_TexCoordinate;             // Per-vertex texture coordinate.
     out vec3 v_Position;                 //
     out vec2 v_ndcPosition;              // for Transform Feedback only
     out vec3 v_Normal;                   //
     out vec2 v_TexCoordinate;            //
     #else
-...
     attribute vec3 a_Normal;             // Per-vertex normal vector.
     attribute vec2 a_TexCoordinate;      // Per-vertex texture coordinate.
     varying vec3 v_Position;             //
     varying vec2 v_ndcPosition;          // for Transform Feedback only
     varying vec3 v_Normal;               //
     varying vec2 v_TexCoordinate;        //
     #endif
-...
+      {
       vec3 v = 2.0*u_objD*a_Position;
       vec3 n = a_Normal;
       vec4 mvpPos;
     #if NUM_VERTEX>0
       int j=0;
-...
       v_Position      = v;
       v_TexCoordinate = a_TexCoordinate;
       v_Normal        = normalize(vec3(u_MVMatrix*vec4(n,0.0)));
       gl_Position     = u_MVPMatrix*vec4(v,1.0);
       mvpPos          = u_MVPMatrix*vec4(v,1.0);
       v_ndcPosition   = vec2(mvpPos.x/mvpPos.w,mvpPos.y/mvpPos.w);
       gl_Position     = mvpPos;
+      }

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