Moving lens distortion shader into drivers and adding GLES2 support

2 files changed, 0 insertions, 68 deletions

diff --git a/modules/mobile_vr/shaders/SCsub b/modules/mobile_vr/shaders/SCsub
deleted file mode 100644
index 97a3598598..0000000000
--- a/modules/mobile_vr/shaders/SCsub
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/usr/bin/env python
-
-Import('env')
-
-if 'GLES3_GLSL' in env['BUILDERS']:
-    env.GLES3_GLSL('lens_distorted.glsl');
diff --git a/modules/mobile_vr/shaders/lens_distorted.glsl b/modules/mobile_vr/shaders/lens_distorted.glsl
deleted file mode 100644
index 92604c891c..0000000000
--- a/modules/mobile_vr/shaders/lens_distorted.glsl
+++ /dev/null
@@ -1,62 +0,0 @@
-/* clang-format off */
-[vertex]
-
-layout(location = 0) in highp vec4 vertex_attrib;
-/* clang-format on */
-layout(location = 4) in vec2 uv_in;
-
-uniform float offset_x;
-
-out vec2 uv_interp;
-
-void main() {
-
-	uv_interp = uv_in;
-	gl_Position = vec4(vertex_attrib.x + offset_x, vertex_attrib.y, 0.0, 1.0);
-}
-
-/* clang-format off */
-[fragment]
-
-uniform sampler2D source; //texunit:0
-/* clang-format on */
-
-uniform vec2 eye_center;
-uniform float k1;
-uniform float k2;
-uniform float upscale;
-uniform float aspect_ratio;
-
-in vec2 uv_interp;
-
-layout(location = 0) out vec4 frag_color;
-
-void main() {
-	vec2 coords = uv_interp;
-	vec2 offset = coords - eye_center;
-
-	// take aspect ratio into account
-	offset.y /= aspect_ratio;
-
-	// distort
-	vec2 offset_sq = offset * offset;
-	float radius_sq = offset_sq.x + offset_sq.y;
-	float radius_s4 = radius_sq * radius_sq;
-	float distortion_scale = 1.0 + (k1 * radius_sq) + (k2 * radius_s4);
-	offset *= distortion_scale;
-
-	// reapply aspect ratio
-	offset.y *= aspect_ratio;
-
-	// add our eye center back in
-	coords = offset + eye_center;
-	coords /= upscale;
-
-	// and check our color
-	if (coords.x < -1.0 || coords.y < -1.0 || coords.x > 1.0 || coords.y > 1.0) {
-		frag_color = vec4(0.0, 0.0, 0.0, 1.0);
-	} else {
-		coords = (coords + vec2(1.0)) / vec2(2.0);
-		frag_color = textureLod(source, coords, 0.0);
-	}
-}