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Diffstat (limited to 'source/blender/gpu/shaders/material/gpu_shader_material_color_util.glsl')
-rw-r--r--source/blender/gpu/shaders/material/gpu_shader_material_color_util.glsl161
1 files changed, 0 insertions, 161 deletions
diff --git a/source/blender/gpu/shaders/material/gpu_shader_material_color_util.glsl b/source/blender/gpu/shaders/material/gpu_shader_material_color_util.glsl
deleted file mode 100644
index fe89985ae7f..00000000000
--- a/source/blender/gpu/shaders/material/gpu_shader_material_color_util.glsl
+++ /dev/null
@@ -1,161 +0,0 @@
-void rgb_to_hsv(vec4 rgb, out vec4 outcol)
-{
- float cmax, cmin, h, s, v, cdelta;
- vec3 c;
-
- cmax = max(rgb[0], max(rgb[1], rgb[2]));
- cmin = min(rgb[0], min(rgb[1], rgb[2]));
- cdelta = cmax - cmin;
-
- v = cmax;
- if (cmax != 0.0) {
- s = cdelta / cmax;
- }
- else {
- s = 0.0;
- h = 0.0;
- }
-
- if (s == 0.0) {
- h = 0.0;
- }
- else {
- c = (vec3(cmax) - rgb.xyz) / cdelta;
-
- if (rgb.x == cmax) {
- h = c[2] - c[1];
- }
- else if (rgb.y == cmax) {
- h = 2.0 + c[0] - c[2];
- }
- else {
- h = 4.0 + c[1] - c[0];
- }
-
- h /= 6.0;
-
- if (h < 0.0) {
- h += 1.0;
- }
- }
-
- outcol = vec4(h, s, v, rgb.w);
-}
-
-void hsv_to_rgb(vec4 hsv, out vec4 outcol)
-{
- float i, f, p, q, t, h, s, v;
- vec3 rgb;
-
- h = hsv[0];
- s = hsv[1];
- v = hsv[2];
-
- if (s == 0.0) {
- rgb = vec3(v, v, v);
- }
- else {
- if (h == 1.0) {
- h = 0.0;
- }
-
- h *= 6.0;
- i = floor(h);
- f = h - i;
- rgb = vec3(f, f, f);
- p = v * (1.0 - s);
- q = v * (1.0 - (s * f));
- t = v * (1.0 - (s * (1.0 - f)));
-
- if (i == 0.0) {
- rgb = vec3(v, t, p);
- }
- else if (i == 1.0) {
- rgb = vec3(q, v, p);
- }
- else if (i == 2.0) {
- rgb = vec3(p, v, t);
- }
- else if (i == 3.0) {
- rgb = vec3(p, q, v);
- }
- else if (i == 4.0) {
- rgb = vec3(t, p, v);
- }
- else {
- rgb = vec3(v, p, q);
- }
- }
-
- outcol = vec4(rgb, hsv.w);
-}
-
-void rgb_to_hsl(vec4 rgb, out vec4 outcol)
-{
- 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;
-
- outcol = vec4(h, s, l, rgb.w);
-}
-
-void hsl_to_rgb(vec4 hsl, out vec4 outcol)
-{
- 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;
-
- outcol = vec4((nr - 0.5) * chroma + l, (ng - 0.5) * chroma + l, (nb - 0.5) * chroma + l, hsl.w);
-}
-
-void color_alpha_clear(vec4 color, out vec4 result)
-{
- result = vec4(color.rgb, 1.0);
-}
-
-void color_alpha_premultiply(vec4 color, out vec4 result)
-{
- result = vec4(color.rgb * color.a, 1.0);
-}
-
-void color_alpha_unpremultiply(vec4 color, out vec4 result)
-{
- if (color.a == 0.0 || color.a == 1.0) {
- result = vec4(color.rgb, 1.0);
- }
- else {
- result = vec4(color.rgb / color.a, 1.0);
- }
-}