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Add exponent to all gradients, cleanup

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This commit is contained in:
Abe Pazos
2020-04-07 19:03:35 +02:00
parent 5d3eadd156
commit fa51fad405
4 changed files with 105 additions and 50 deletions
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41
orx-shade-styles/src/main/kotlin/AngularGradient.kt
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@@ -4,10 +4,17 @@ import org.openrndr.color.ColorRGBa
import org.openrndr.draw.ShadeStyle
import org.openrndr.extra.parameters.ColorParameter
import org.openrndr.extra.parameters.Description
import org.openrndr.extra.parameters.DoubleParameter
import org.openrndr.math.Vector2
@Description("Angular gradient")
class AngularGradient(color0: ColorRGBa, color1: ColorRGBa, offset: Vector2 = Vector2.ZERO, rotation: Double = 0.0) : ShadeStyle() {
class AngularGradient(
color0: ColorRGBa,
color1: ColorRGBa,
offset: Vector2 = Vector2.ZERO,
rotation: Double = 0.0,
exponent: Double = 1.0) : ShadeStyle() {
@ColorParameter("start color", order = 0)
var color0 : ColorRGBa by Parameter()
@ColorParameter("end color", order = 1)
@@ -16,37 +23,49 @@ class AngularGradient(color0: ColorRGBa, color1: ColorRGBa, offset: Vector2 = Ve
var offset : Vector2 by Parameter()
@ColorParameter("rotation", order = 3)
var rotation : Double by Parameter()
@DoubleParameter("exponent", 0.01, 10.0, order = 4)
var exponent: Double by Parameter()
init {
this.color0 = color0
this.color1 = color1
this.offset = offset
this.rotation = rotation
this.exponent = exponent
fragmentTransform = """
vec2 coord = (c_boundsPosition.xy - vec2(0.5) + p_offset/2.0) * 2.0;
vec2 coord = (c_boundsPosition.xy - 0.5 + p_offset/2.0) * 2.0;
float cr = cos(radians(p_rotation));
float sr = sin(radians(p_rotation));
mat2 rm = mat2(cr, -sr, sr, cr);
vec2 rc = rm * coord;
float f = (atan(rc.y, rc.x) + 3.1415926536) / (2.0 * 3.1415926536);
vec4 color0 = p_color0 * vec4(p_color0.aaa, 1.0);
vec4 color1 = p_color1 * vec4(p_color1.aaa, 1.0);
vec4 gradient = color0 * (1.0-f) + color1 * f;
vec4 color0 = p_color0;
color0.rgb *= color0.a;
vec4 color1 = p_color1;
color1.rgb *= color1.a;
vec4 gradient = mix(color0, color1, pow(f, p_exponent));
vec4 fn = vec4(x_fill.rgb, 1.0) * x_fill.a;
x_fill = fn * gradient;
if (x_fill.a !=0) {
if (x_fill.a != 0) {
x_fill.rgb /= x_fill.a;
}
"""
}
}
fun angularGradient(color0: ColorRGBa, color1: ColorRGBa, offset: Vector2 = Vector2.ZERO, rotation: Double = 0.0): ShadeStyle {
return AngularGradient(color0, color1, offset, rotation)
fun angularGradient(
color0: ColorRGBa,
color1: ColorRGBa,
offset: Vector2 = Vector2.ZERO,
rotation: Double = 0.0,
exponent: Double = 1.0
): ShadeStyle {
return AngularGradient(color0, color1, offset, rotation, exponent)
}