The shaders are no longer needed since we are using the SDK for them

space_view3d_virtual_reality/shaders/oculus_dk1.glsl

-// Oculus DK1 lens distortion shader for multiple  eyes
-// shader is adapted from Oculus DK1 distortion shader by
-// Lubosz Sarnecki(lubosz.wordpress.com/)
-
-uniform sampler2D bgl_RenderedTexture;
-uniform float bgl_RenderedTextureWidth;
-uniform float bgl_RenderedTextureHeight;
-
-const vec4 kappa = vec4(1.0,1.7,0.7,15.0);
-
-float screen_width = bgl_RenderedTextureWidth;
-float screen_height = bgl_RenderedTextureHeight;
-
-const float scaleFactor = 0.8;
-
-const vec2 leftCenter = vec2(0.25, 0.5);
-const vec2 rightCenter = vec2(0.75, 0.5);
-
-const float separation = 0.01;
-
-// Scales input texture coordinates for distortion.
-vec2 hmdWarp(vec2 LensCenter, vec2 texCoord, vec2 Scale, vec2 ScaleIn) {
-    vec2 theta = (texCoord - LensCenter) * ScaleIn;
-    float rSq = theta.x * theta.x + theta.y * theta.y;
-    vec2 rvector = theta * (kappa.x +
-                            kappa.y * rSq +
-                            kappa.z * rSq * rSq +
-                            kappa.w * rSq * rSq * rSq);
-    vec2 tc = LensCenter + Scale * rvector;
-    return tc;
-}
-
-bool validate(vec2 tc, int left_eye) {
-    //keep within bounds of texture
-    if ((left_eye == 1 && (tc.x < 0.0 || tc.x > 0.5)) ||
-        (left_eye == 0 && (tc.x < 0.5 || tc.x > 1.0)) ||
-        tc.y < 0.0 || tc.y > 1.0) {
-        return false;
-    }
-    return true;
-}
-
-void main() {
-    vec2 screen = vec2(screen_width, screen_height);
-
-    float as = float(screen.x / 2.0) / float(screen.y);
-    vec2 Scale = vec2(0.5, as);
-    vec2 ScaleIn = vec2(2.0 * scaleFactor, 1.0 / as * scaleFactor);
-
-    vec2 texCoord = gl_TexCoord[0].st;
-    vec2 texCoordSeparated = texCoord;
-
-    vec2 tc = vec2(0);
-    vec4 color = vec4(0);
-
-    // ad hoc enhanced separation to allow proper viewing factor 
-    float ad_hoc_enhance_stereo = 4.0;
-
-    if (texCoord.x < 0.5) {
-        texCoordSeparated.x -= ad_hoc_enhance_stereo *separation;
-        tc = hmdWarp(leftCenter, texCoordSeparated, Scale, ScaleIn );
-        color = texture2D(bgl_RenderedTexture, tc);
-        if (!validate(tc, 1))
-            color = vec4(0);
-    } else {
-        texCoordSeparated.x += ad_hoc_enhance_stereo *separation;
-        tc = hmdWarp(rightCenter, texCoordSeparated, Scale, ScaleIn);
-        color = texture2D(bgl_RenderedTexture, tc);
-        if (!validate(tc, 0))
-            color = vec4(0);
-    }
-    gl_FragColor = color;
-}

space_view3d_virtual_reality/shaders/oculus_dk2.glsl

-// Oculus DK2 lens distortion shader for single eye
-// shader is adapted from Oculus DK1 distortion shader by
-// Lubosz Sarnecki(lubosz.wordpress.com/)
-
-uniform sampler2D bgl_RenderedTexture;
-uniform float bgl_RenderedTextureWidth;
-uniform float bgl_RenderedTextureHeight;
-
-const vec4 kappa = vec4(1.0,0.9,1.0,2.0);
-
-float screen_width = bgl_RenderedTextureWidth;
-float screen_height = bgl_RenderedTextureHeight;
-
-const float scaleFactor = 0.83;
-
-const vec2 lensCenter = vec2(0.5, 0.5);
-
-// Scales input texture coordinates for distortion.
-vec2 hmdWarp(vec2 texCoord, vec2 Scale, vec2 ScaleIn, float eta) {
-	vec2 theta = (texCoord - lensCenter) * ScaleIn;
-	float rSq = theta.x * theta.x + theta.y * theta.y;
-	vec2 rvector = theta * (kappa.x + kappa.y * rSq + kappa.z * rSq * rSq + kappa.w * rSq * rSq * rSq);
-	vec2 tc = lensCenter + Scale * eta * rvector;
-	return tc;
-}
-
-float edges(vec2 tc)
-{
-	float vertL = smoothstep(0.0,0.05,tc.x);
-	float vertR = smoothstep(1.0,0.95,tc.x);
-	float horizL = smoothstep(0.0,0.05,tc.y);
-	float horizR = smoothstep(1.0,0.95,tc.y);
-	return vertL*vertR*horizL*horizR;
-}
-
-
-void main()
-{
-	vec2 screen = vec2(screen_width, screen_height);
-	vec3 eta = vec3(1.00,1.018,1.042); //refraction indices
-
-	float as = float(screen.x) / float(screen.y);
-	vec2 Scale = vec2(1.0, 1.0);
-	vec2 ScaleIn = vec2(scaleFactor, scaleFactor);
-
-	vec2 texCoord = gl_TexCoord[0].st;
-
-	vec2 tcR = vec2(0.0);
-	vec2 tcG = vec2(0.0);
-	vec2 tcB = vec2(0.0);
-
-	vec4 color = vec4(0.0);
-
-	tcR = hmdWarp(texCoord, Scale, ScaleIn, eta.r );
-	tcG = hmdWarp(texCoord, Scale, ScaleIn, eta.g );
-	tcB = hmdWarp(texCoord, Scale, ScaleIn, eta.b );
-	color.r = texture2D(bgl_RenderedTexture, tcR*vec2(0.5,1.0)+vec2(0.25,0.0)).r;
-	color.g = texture2D(bgl_RenderedTexture, tcG*vec2(0.5,1.0)+vec2(0.25,0.0)).g;
-	color.b = texture2D(bgl_RenderedTexture, tcB*vec2(0.5,1.0)+vec2(0.25,0.0)).b;
-	color = color * edges(tcR);
-
-	gl_FragColor = color;
-}