changes
This commit is contained in:
Edwin Jakobs
@@ -1,54 +1,54 @@
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# orx-no-clear
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A simple OPENRNDR Extension that provides the classical drawing-without-clearing-the-screen functionality that
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OPENRNDR does not support natively.
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#### Usage
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```kotlin
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fun main() = application {
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configure {
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title = "NoClearProgram"
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}
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program {
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backgroundColor = ColorRGBa.PINK
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extend(NoClear())
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extend {
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drawer.circle(Math.cos(seconds) * width / 2.0 + width / 2.0, Math.sin(seconds * 0.24) * height / 2.0 + height / 2.0, 20.0)
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}
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}
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}
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```
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#### Usage with additional configuration
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Optionally, a static `backdrop` may be setup by providing custom code.
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- Example 1. Customising the backdrop with an image
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```kotlin
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extend(NoClear()) {
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val img = loadImage("data\\backdrop.png")
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backdrop = {
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drawer.image(img, 0.0, 0.0, width * 1.0, height * 1.0)
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}
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}
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```
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- Example 2. Customising the backdrop with a checker-board pattern
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```kotlin
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extend(NoClear()) {
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backdrop = {
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val xw = width / 8.0
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val yh = height / 8.0
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drawer.fill = ColorRGBa.RED
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(0..7).forEach { row ->
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(0..7).forEach { col ->
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if ((row + col) % 2 == 0) {
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drawer.rectangle(row * xw, col * yh, xw, yh)
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}
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}
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}
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}
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}
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```
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# orx-no-clear
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A simple OPENRNDR Extension that provides the classical drawing-without-clearing-the-screen functionality that
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OPENRNDR does not support natively.
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#### Usage
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```kotlin
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fun main() = application {
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configure {
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title = "NoClearProgram"
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}
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program {
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backgroundColor = ColorRGBa.PINK
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extend(NoClear())
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extend {
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drawer.circle(Math.cos(seconds) * width / 2.0 + width / 2.0, Math.sin(seconds * 0.24) * height / 2.0 + height / 2.0, 20.0)
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}
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}
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}
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```
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#### Usage with additional configuration
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Optionally, a static `backdrop` may be setup by providing custom code.
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- Example 1. Customising the backdrop with an image
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```kotlin
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extend(NoClear()) {
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val img = loadImage("data\\backdrop.png")
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backdrop = {
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drawer.image(img, 0.0, 0.0, width * 1.0, height * 1.0)
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}
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}
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```
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- Example 2. Customising the backdrop with a checker-board pattern
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```kotlin
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extend(NoClear()) {
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backdrop = {
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val xw = width / 8.0
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val yh = height / 8.0
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drawer.fill = ColorRGBa.RED
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(0..7).forEach { row ->
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(0..7).forEach { col ->
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if ((row + col) % 2 == 0) {
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drawer.rectangle(row * xw, col * yh, xw, yh)
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}
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}
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}
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}
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}
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```
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NB! any submitted _lambda expression_ must be valid within the `renderTarget` context.
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@@ -1,57 +1,57 @@
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package org.openrndr.extra.noclear
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import org.openrndr.Extension
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import org.openrndr.Program
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import org.openrndr.color.ColorRGBa
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import org.openrndr.draw.Drawer
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import org.openrndr.draw.RenderTarget
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import org.openrndr.draw.isolated
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import org.openrndr.draw.renderTarget
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import org.openrndr.math.Matrix44
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class NoClear : Extension {
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override var enabled: Boolean = true
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private var renderTarget: RenderTarget? = null
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/**
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* code-block to draw an optional custom backdrop
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*/
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var backdrop: (() -> Unit)? = null
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override fun beforeDraw(drawer: Drawer, program: Program) {
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if (program.width > 0 && program.height > 0) { // only if the window is not minimised
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if (renderTarget == null || renderTarget?.width != program.width || renderTarget?.height != program.height) {
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renderTarget?.let {
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it.colorBuffer(0).destroy()
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it.detachColorBuffers()
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it.destroy()
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}
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renderTarget = renderTarget(program.width, program.height) {
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colorBuffer()
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depthBuffer()
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}
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renderTarget?.let {
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drawer.withTarget(it) {
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background(program.backgroundColor ?: ColorRGBa.TRANSPARENT)
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backdrop?.invoke() // draw custom backdrop
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}
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}
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}
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}
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renderTarget?.bind()
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}
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override fun afterDraw(drawer: Drawer, program: Program) {
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renderTarget?.unbind()
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renderTarget?.let {
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drawer.isolated {
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drawer.ortho()
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drawer.view = Matrix44.IDENTITY
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drawer.model = Matrix44.IDENTITY
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drawer.image(it.colorBuffer(0))
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}
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}
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}
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package org.openrndr.extra.noclear
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import org.openrndr.Extension
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import org.openrndr.Program
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import org.openrndr.color.ColorRGBa
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import org.openrndr.draw.Drawer
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import org.openrndr.draw.RenderTarget
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import org.openrndr.draw.isolated
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import org.openrndr.draw.renderTarget
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import org.openrndr.math.Matrix44
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class NoClear : Extension {
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override var enabled: Boolean = true
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private var renderTarget: RenderTarget? = null
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/**
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* code-block to draw an optional custom backdrop
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*/
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var backdrop: (() -> Unit)? = null
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override fun beforeDraw(drawer: Drawer, program: Program) {
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if (program.width > 0 && program.height > 0) { // only if the window is not minimised
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if (renderTarget == null || renderTarget?.width != program.width || renderTarget?.height != program.height) {
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renderTarget?.let {
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it.colorBuffer(0).destroy()
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it.detachColorBuffers()
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it.destroy()
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}
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renderTarget = renderTarget(program.width, program.height) {
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colorBuffer()
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depthBuffer()
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}
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renderTarget?.let {
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drawer.withTarget(it) {
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background(program.backgroundColor ?: ColorRGBa.TRANSPARENT)
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backdrop?.invoke() // draw custom backdrop
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}
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}
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}
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}
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renderTarget?.bind()
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}
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override fun afterDraw(drawer: Drawer, program: Program) {
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renderTarget?.unbind()
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renderTarget?.let {
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drawer.isolated {
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drawer.ortho()
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drawer.view = Matrix44.IDENTITY
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drawer.model = Matrix44.IDENTITY
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drawer.image(it.colorBuffer(0))
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}
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}
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}
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}
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