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Moved scanline_size out to main shader for easier integration with HSM

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MajorPainTheCactus 2022-03-05 15:53:41 +00:00
parent 55e0796400
commit 5e6351e2c7
2 changed files with 6 additions and 7 deletions
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3
hdr/shaders/crt-hdr.slang
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@ -417,7 +417,8 @@ vec3 Hdr10Conditional(const vec3 scanline_colour)
void main()
{
vec3 scanline_colour = GenerateScanline(global.SourceSize.xy);
const float scanline_size = global.OutputSize.y / global.SourceSize.y;
vec3 scanline_colour = GenerateScanline(global.SourceSize.xy, scanline_size);
const uint screen_type = uint(HCRT_CRT_SCREEN_TYPE);
const uint crt_resolution = uint(HCRT_CRT_RESOLUTION);

10
hdr/shaders/include/scanline_generation.h
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@ -46,7 +46,7 @@ vec3 InverseTonemapConditional(const vec3 linear)
}
}
vec3 ScanlineColour(const vec2 source_size, const vec3 source_tex_coord_x, const vec3 narrowed_source_pixel_offset, inout vec3 next_prev)
vec3 ScanlineColour(const vec2 source_size, const float scanline_size, const vec3 source_tex_coord_x, const vec3 narrowed_source_pixel_offset, inout vec3 next_prev)
{
const vec3 current_source_position_y = (vec3(vTexCoord.y * source_size.y) - vec3(HCRT_RED_VERTICAL_CONVERGENCE, HCRT_GREEN_VERTICAL_CONVERGENCE, HCRT_BLUE_VERTICAL_CONVERGENCE)) + next_prev;
const vec3 current_source_center_y = floor(current_source_position_y) + 0.5f;
@ -55,8 +55,6 @@ vec3 ScanlineColour(const vec2 source_size, const vec3 source_tex_coord_x, const
const vec3 scanline_delta = fract(current_source_position_y) - 0.5f;
const float scanline_size = global.OutputSize.y / source_size.y;
// Slightly increase the beam width to get maximum brightness
vec3 beam_distance = abs(scanline_delta - next_prev) - (kBeamWidth / scanline_size);
beam_distance = vec3(beam_distance.x < 0.0f ? 0.0f : beam_distance.x,
@ -115,7 +113,7 @@ vec3 ScanlineColour(const vec2 source_size, const vec3 source_tex_coord_x, const
return luminance * hdr_colour;
}
vec3 GenerateScanline(const vec2 source_size)
vec3 GenerateScanline(const vec2 source_size, const float scanline_size)
{
const vec3 current_source_position_x = vec3(vTexCoord.x * source_size.x) - vec3(HCRT_RED_HORIZONTAL_CONVERGENCE, HCRT_GREEN_HORIZONTAL_CONVERGENCE, HCRT_BLUE_HORIZONTAL_CONVERGENCE);
const vec3 current_source_center_x = floor(current_source_position_x) + 0.5f;
@ -129,13 +127,13 @@ vec3 GenerateScanline(const vec2 source_size)
vec3 next_prev = vec3(0.0f);
const vec3 scanline_colour0 = ScanlineColour(source_size, source_tex_coord_x, narrowed_source_pixel_offset, next_prev);
const vec3 scanline_colour0 = ScanlineColour(source_size, scanline_size, source_tex_coord_x, narrowed_source_pixel_offset, next_prev);
// Optionally sample the neighbouring scanline
vec3 scanline_colour1 = vec3(0.0f);
if(HCRT_RED_SCANLINE_MAX > 1.0f || HCRT_GREEN_SCANLINE_MAX > 1.0f || HCRT_BLUE_SCANLINE_MAX > 1.0f)
{
scanline_colour1 = ScanlineColour(source_size, source_tex_coord_x, narrowed_source_pixel_offset, next_prev);
scanline_colour1 = ScanlineColour(source_size, scanline_size, source_tex_coord_x, narrowed_source_pixel_offset, next_prev);
}
return scanline_colour0 + scanline_colour1;