39 lines
1.2 KiB
Kotlin
39 lines
1.2 KiB
Kotlin
package phrases
|
|
|
|
import org.openrndr.application
|
|
import org.openrndr.draw.shadeStyle
|
|
import org.openrndr.extra.shaderphrases.noise.fhash13Phrase
|
|
|
|
/**
|
|
* Demonstrate the use of a uniform hashing function phrase in a ShadeStyle.
|
|
*
|
|
* The hashing function uses the screen coordinates and the current time to
|
|
* calculate the brightness of each pixel.
|
|
*
|
|
* Multiple GLSL hashing functions are defined in orx-shader-phrases.
|
|
*/
|
|
fun main() = application {
|
|
configure {
|
|
width = 720
|
|
height = 360
|
|
}
|
|
program {
|
|
extend {
|
|
/** A custom shadestyle */
|
|
val ss = shadeStyle {
|
|
fragmentPreamble = """
|
|
$fhash13Phrase
|
|
""".trimIndent()
|
|
|
|
fragmentTransform = """
|
|
float cf = fhash13(vec3(c_screenPosition, p_time));
|
|
x_fill = vec4(cf, cf, cf, 1.0);
|
|
""".trimIndent()
|
|
parameter("time", seconds)
|
|
}
|
|
drawer.shadeStyle = ss
|
|
drawer.circle(drawer.bounds.center, 100.0)
|
|
}
|
|
}
|
|
}
|