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[orx-shadestyles] Improve gradient and imageFill shadestyles

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This commit is contained in:
Edwin Jakobs
2025-02-25 12:16:57 +01:00
parent 21a3d7f483
commit 9a93d95318
30 changed files with 1296 additions and 386 deletions
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53
orx-color/src/commonMain/kotlin/phrases/Phrases.kt
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@@ -3,14 +3,27 @@ package org.openrndr.extra.color.phrases
import org.openrndr.extra.shaderphrases.ShaderPhrase
import org.openrndr.extra.shaderphrases.ShaderPhraseBook
object ColorPhraseBook : ShaderPhraseBook("color") {
val phraseAtan2 = ShaderPhrase("""
|float atan2(in float y, in float x) {
| bool s = (abs(x) > abs(y));
| return mix(PI/2.0 - atan(x,y), atan(y,x), float(s));
|}""".trimMargin())
val oklabToLinearRgbPhrase = """#ifndef ORX_COLOR_OKLAB_TO_LINEAR_RGB_PHRASE
|#define ORX_COLOR_OKLAB_TO_LINEAR_RGB_PHRASE
|vec4 oklab_to_linear_rgb(vec4 lab) {
| const mat3 kLMStoCONE = mat3(
| 1.0, 1.0, 1.0,
| 0.3963377774, -0.1055613458, -0.0894841775,
| 0.2158037573, -0.0638541728, -1.2914855480);
| const mat3 kRot = mat3(
| 4.0767416621, -1.2684380046, -0.0041960863,
| -3.3077115913, 2.6097574011, -0.7034186147,
| 0.2309699292, -0.3413193965, 1.7076147010);
| vec3 lms = kLMStoCONE * lab.rgb;
| lms = lms * lms * lms;
| vec4 res = vec4(kRot * lms,lab.a);
| return res;
|}
|#endif""".trimMargin()
val phraseLinearRgbToOKLab = ShaderPhrase("""
val linearRgbToOklabPhrase = """
|#ifndef ORX_COLOR_LINEAR_RGB_TO_OKLAB_PHRASE
|#define ORX_COLOR_LINEAR_RGB_TO_OKLAB_PHRASE
|vec4 linear_rgb_to_oklab(vec4 c) {
| c.rgb = max(vec3(0.0), c.rgb);
| const mat3 kCONEtoLMS = mat3(
@@ -25,23 +38,19 @@ object ColorPhraseBook : ShaderPhraseBook("color") {
| vec3 lms = pow(kCONEtoLMS * c.rgb, vec3(1.0/3.0));
| vec4 res = vec4((kRot) * lms, c.a);
| return res;
|}
|#endif""".trimMargin()
object ColorPhraseBook : ShaderPhraseBook("color") {
val phraseAtan2 = ShaderPhrase("""
|float atan2(in float y, in float x) {
| bool s = (abs(x) > abs(y));
| return mix(PI/2.0 - atan(x,y), atan(y,x), float(s));
|}""".trimMargin())
val oklabToLinearRgb = ShaderPhrase("""
|vec4 oklab_to_linear_rgb(vec4 lab) {
| const mat3 kLMStoCONE = mat3(
| 1.0, 1.0, 1.0,
| 0.3963377774, -0.1055613458, -0.0894841775,
| 0.2158037573, -0.0638541728, -1.2914855480);
| const mat3 kRot = mat3(
| 4.0767416621, -1.2684380046, -0.0041960863,
| -3.3077115913, 2.6097574011, -0.7034186147,
| 0.2309699292, -0.3413193965, 1.7076147010);
| vec3 lms = kLMStoCONE * lab.rgb;
| lms = lms * lms * lms;
| vec4 res = vec4(kRot * lms,lab.a);
| return res;
|}""".trimMargin())
val phraseLinearRgbToOKLab = ShaderPhrase(linearRgbToOklabPhrase)
val oklabToLinearRgb = ShaderPhrase(oklabToLinearRgbPhrase)
val phraseLabToLch = ShaderPhrase( """
|vec4 lab_to_lch(vec4 lab) {