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-rw-r--r--modules/mobile_vr/shaders/lens_distorted.glsl67
1 files changed, 35 insertions, 32 deletions
diff --git a/modules/mobile_vr/shaders/lens_distorted.glsl b/modules/mobile_vr/shaders/lens_distorted.glsl
index 5a2975d737..92604c891c 100644
--- a/modules/mobile_vr/shaders/lens_distorted.glsl
+++ b/modules/mobile_vr/shaders/lens_distorted.glsl
@@ -1,7 +1,9 @@
+/* clang-format off */
[vertex]
-layout(location=0) in highp vec4 vertex_attrib;
-layout(location=4) in vec2 uv_in;
+layout(location = 0) in highp vec4 vertex_attrib;
+/* clang-format on */
+layout(location = 4) in vec2 uv_in;
uniform float offset_x;
@@ -9,13 +11,15 @@ 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);
+ 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;
@@ -28,32 +32,31 @@ 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);
- }
+ 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);
+ }
}
-