quite a lot of changes that I, of course, are not going to describe;)

1 files changed, 0 insertions, 119 deletions

diff --git a/advanced_opengl/5.framebuffers/shaders/screen.fs b/advanced_opengl/5.framebuffers/shaders/screen.fs
deleted file mode 100644
index 183d490..0000000
--- a/advanced_opengl/5.framebuffers/shaders/screen.fs
+++ /dev/null
@@ -1,119 +0,0 @@
-#version 330 core
-
-out vec4 frag_color;
-
-in vec2 tex_coords;
-
-uniform sampler2D texture1;
-
-vec4
-inversion()
-{
-    vec4 result = vec4(1.0-vec3(texture(texture1, tex_coords)), 1.0);
-    return(result);
-}
-
-vec4
-grayscale_average()
-{
-    vec4 tex_color = texture(texture1, tex_coords);
-    float average = (tex_color.r+tex_color.g+tex_color.b)/3.0;
-    vec4 result = vec4(average, average, average, 1.0);
-    return(result);
-}
-
-vec4
-grayscale_weights()
-{
-    vec4 tex_color = texture(texture1, tex_coords);
-    float average = 0.2126*tex_color.r+0.7152*tex_color.g+0.0722*tex_color.b;
-    vec4 result = vec4(average, average, average, 1.0);
-    return(result);
-}
-
-const float offset = 1.0/300.0;
-
-vec4
-kernel_effect(float[9] kernel)
-{
-    vec2 offsets[9] = vec2[](
-        vec2(-offset, offset), /* top-left */
-        vec2(0.0, offset), /* top-center */
-        vec2(offset, offset), /* top-right */
-        vec2(-offset, 0.0), /* center-left */
-        vec2(0.0, 0.0), /* center-center */
-        vec2(offset, 0.0), /* center-right */
-        vec2(-offset, -offset), /* bottom-left */
-        vec2(0.0, -offset), /* bottom-center */
-        vec2(offset, -offset) /* bottom-right */
-    );
-
-    vec3 sample_texture[9];
-    for (int offset_index = 0;
-         offset_index < 9;
-         ++offset_index)
-    {
-        sample_texture[offset_index] =
-            vec3(texture(texture1, tex_coords+offsets[offset_index]));
-    }
-
-    vec3 color = vec3(0.0);
-    for (int i = 0; i < 9; ++i)
-        color += sample_texture[i]*kernel[i];
-
-    return(vec4(color, 1.0));
-}
-
-void
-main(void)
-{
-    float strange_kernel[9] = float[](
-        -1, -1, -1,
-        -1,  9, -1,
-        -1, -1, -1
-    );
-
-    float gaussian_blur_kernel[9] = float[](
-        1.0/16.0, 2.0/16.0, 1.0/16.0,
-        2.0/16.0, 4.0/16.0, 2.0/16.0,
-        1.0/16.0, 2.0/16.0, 1.0/16.0
-    );
-
-    float box_blur_kernel[9] = float[](
-        1.0/9.0, 1.0/9.0, 1.0/9.0,
-        1.0/9.0, 1.0/9.0, 1.0/9.0,
-        1.0/9.0, 1.0/9.0, 1.0/9.0
-    );
-
-    float edge_detection_kernel[9] = float[](
-        1.0,  1.0,  1.0,
-        1.0, -8.0,  1.0,
-        1.0,  1.0,  1.0
-    );
-
-    float sharpening_kernel[9] = float[](
-         0.0, -1.0,  0.0,
-        -1.0,  5.0, -1.0,
-         0.0, -1.0,  0.0
-    );
-
-    float sobel_kernel_vertical[9] = float[](
-        -1.0, 0.0, 1.0,
-        -2.0, 0.0, 2.0,
-        -1.0, 0.0, 0.0
-    );
-    float sobel_kernel_horizontal[9] = float[](
-        -1.0, -2.0, -1.0,
-         0.0,  0.0,  0.0,
-         1.0,  2.0,  1.0
-    );
-
-    float funny_kernel[9] = float[](
-        1.0,  1.0,  1.0,
-        1.0, -4.0,  1.0,
-        1.0,  1.0,  1.0
-    );
-
-    frag_color = kernel_effect(funny_kernel);
-    frag_color *= vec4(0.76, 0.47, 0.84, 1.0);
-}