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add scanline direction parameter to crt-hyllian

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This commit is contained in:
hunterk 2017-09-28 10:59:56 -05:00
parent c376bb5890
commit a663631fe9
1 changed files with 8 additions and 4 deletions
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12
crt/shaders/crt-hyllian.glsl
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@ -24,6 +24,7 @@
*/
#pragma parameter PHOSPHOR "CRT - Phosphor ON/OFF" 1.0 0.0 1.0 1.0
#pragma parameter VSCANLINES "CRT - Scanlines Direction" 0.0 0.0 1.0 1.0
#pragma parameter InputGamma "CRT - Input gamma" 2.4 0.0 5.0 0.1
#pragma parameter OutputGamma "CRT - Output Gamma" 2.2 0.0 5.0 0.1
#pragma parameter SHARPNESS "CRT - Sharpness Hack" 1.0 1.0 5.0 1.0
@ -128,6 +129,7 @@ IN vec2 texCoord;
#ifdef PARAMETER_UNIFORM
uniform PRECISION float PHOSPHOR;
uniform PRECISION float VSCANLINES;
uniform PRECISION float InputGamma;
uniform PRECISION float OutputGamma;
uniform PRECISION float SHARPNESS;
@ -141,6 +143,7 @@ uniform PRECISION float BEAM_MAX_WIDTH;
uniform PRECISION float CRT_ANTI_RINGING;
#else
#define PHOSPHOR 1.0
#define VSCANLINES 0.0
#define InputGamma 2.4
#define OutputGamma 2.2
#define SHARPNESS 1.0
@ -169,13 +172,14 @@ void main()
vec2 texture_size = vec2(SHARPNESS*TextureSize.x, TextureSize.y);
vec4 color;
vec2 dx = vec2(1.0/texture_size.x, 0.0);
vec2 dy = vec2(0.0, 1.0/texture_size.y);
vec2 dx = mix(vec2(1.0/texture_size.x, 0.0), vec2(0.0, 1.0/texture_size.y), VSCANLINES);
vec2 dy = mix(vec2(0.0, 1.0/texture_size.y), vec2(1.0/texture_size.x, 0.0), VSCANLINES);
vec2 pix_coord = texCoord*texture_size+vec2(-0.5,0.5);
vec2 tc = (floor(pix_coord)+vec2(0.5,0.5))/texture_size;
vec2 tc = mix((floor(pix_coord) + vec2(0.5, 0.5))/texture_size, (floor(pix_coord) + vec2(1.0, -0.5))/texture_size, VSCANLINES);
vec2 fp = fract(pix_coord);
vec2 fp = mix(fract(pix_coord), fract(pix_coord.yx), VSCANLINES);
vec4 c00 = GAMMA_IN(tex2D(s_p, tc - dx - dy).xyzw);
vec4 c01 = GAMMA_IN(tex2D(s_p, tc - dy).xyzw);