Files
oak-editor/app/shaders/deinterlace.frag
T

20 lines
545 B
GLSL

uniform sampler2D ove_maintex;
uniform vec2 ove_resolution;
in vec2 ove_texcoord;
out vec4 fragColor;
void main() {
vec2 using_texcoord = ove_texcoord;
// A very basic deinterlace that halves the vertical
// resolution and linearly interpolates the two fields
// by reading the texture coord between them.
float half_vert = round(ove_resolution.y / 2.0);
using_texcoord.y = (round(using_texcoord.y * half_vert) + 0.25) / half_vert;
vec4 color = %1(texture(ove_maintex, using_texcoord));
fragColor = color;
}