diff options
Diffstat (limited to 'intern/cycles/kernel/osl/shaders')
4 files changed, 94 insertions, 0 deletions
diff --git a/intern/cycles/kernel/osl/shaders/CMakeLists.txt b/intern/cycles/kernel/osl/shaders/CMakeLists.txt index 7ced21c5670..741bce7c399 100644 --- a/intern/cycles/kernel/osl/shaders/CMakeLists.txt +++ b/intern/cycles/kernel/osl/shaders/CMakeLists.txt @@ -16,6 +16,7 @@ set(SRC_OSL node_camera.osl node_checker_texture.osl node_clamp.osl + node_combine_color.osl node_combine_rgb.osl node_combine_hsv.osl node_combine_xyz.osl @@ -68,6 +69,7 @@ set(SRC_OSL node_refraction_bsdf.osl node_rgb_curves.osl node_rgb_ramp.osl + node_separate_color.osl node_separate_rgb.osl node_separate_hsv.osl node_separate_xyz.osl diff --git a/intern/cycles/kernel/osl/shaders/node_color.h b/intern/cycles/kernel/osl/shaders/node_color.h index 388dd114e9a..06735f5b03d 100644 --- a/intern/cycles/kernel/osl/shaders/node_color.h +++ b/intern/cycles/kernel/osl/shaders/node_color.h @@ -148,3 +148,53 @@ color hsv_to_rgb(color hsv) return rgb; } + +color rgb_to_hsl(color rgb) +{ + float cmax, cmin, h, s, l; + + cmax = max(rgb[0], max(rgb[1], rgb[2])); + cmin = min(rgb[0], min(rgb[1], rgb[2])); + l = min(1.0, (cmax + cmin) / 2.0); + + if (cmax == cmin) { + h = s = 0.0; /* achromatic */ + } + else { + float cdelta = cmax - cmin; + s = l > 0.5 ? cdelta / (2.0 - cmax - cmin) : cdelta / (cmax + cmin); + if (cmax == rgb[0]) { + h = (rgb[1] - rgb[2]) / cdelta + (rgb[1] < rgb[2] ? 6.0 : 0.0); + } + else if (cmax == rgb[1]) { + h = (rgb[2] - rgb[0]) / cdelta + 2.0; + } + else { + h = (rgb[0] - rgb[1]) / cdelta + 4.0; + } + } + h /= 6.0; + + return color(h, s, l); +} + +color hsl_to_rgb(color hsl) +{ + float nr, ng, nb, chroma, h, s, l; + + h = hsl[0]; + s = hsl[1]; + l = hsl[2]; + + nr = abs(h * 6.0 - 3.0) - 1.0; + ng = 2.0 - abs(h * 6.0 - 2.0); + nb = 2.0 - abs(h * 6.0 - 4.0); + + nr = clamp(nr, 0.0, 1.0); + nb = clamp(nb, 0.0, 1.0); + ng = clamp(ng, 0.0, 1.0); + + chroma = (1.0 - abs(2.0 * l - 1.0)) * s; + + return color((nr - 0.5) * chroma + l, (ng - 0.5) * chroma + l, (nb - 0.5) * chroma + l); +} diff --git a/intern/cycles/kernel/osl/shaders/node_combine_color.osl b/intern/cycles/kernel/osl/shaders/node_combine_color.osl new file mode 100644 index 00000000000..681a592d2bb --- /dev/null +++ b/intern/cycles/kernel/osl/shaders/node_combine_color.osl @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: Apache-2.0 + * Copyright 2011-2022 Blender Foundation */ + +#include "stdcycles.h" + +shader node_combine_color(string color_type = "rgb", + float Red = 0.0, + float Green = 0.0, + float Blue = 0.0, + output color Color = 0.8) +{ + if (color_type == "rgb" || color_type == "hsv" || color_type == "hsl") + Color = color(color_type, Red, Green, Blue); + else + warning("%s", "Unknown color space!"); +} diff --git a/intern/cycles/kernel/osl/shaders/node_separate_color.osl b/intern/cycles/kernel/osl/shaders/node_separate_color.osl new file mode 100644 index 00000000000..6f3e3149d8e --- /dev/null +++ b/intern/cycles/kernel/osl/shaders/node_separate_color.osl @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: Apache-2.0 + * Copyright 2011-2022 Blender Foundation */ + +#include "node_color.h" +#include "stdcycles.h" + +shader node_separate_color(string color_type = "rgb", + color Color = 0.8, + output float Red = 0.0, + output float Green = 0.0, + output float Blue = 0.0) +{ + color col; + if (color_type == "rgb") + col = Color; + else if (color_type == "hsv") + col = rgb_to_hsv(Color); + else if (color_type == "hsl") + col = rgb_to_hsl(Color); + else + warning("%s", "Unknown color space!"); + + Red = col[0]; + Green = col[1]; + Blue = col[2]; +} |