From fbbdf8b82e159078274475c5013f2f1147b0a4d8 Mon Sep 17 00:00:00 2001
From: Sven Gothel <sgothel@jausoft.com>
Date: Wed, 22 Mar 2023 11:05:19 +0100
Subject: GraphUI Scene: Add optional frustum culling (default: disabled)
---
.../classes/com/jogamp/graph/ui/gl/Scene.java | 36 ++++++++++++++--------
1 file changed, 23 insertions(+), 13 deletions(-)
(limited to 'src')
diff --git a/src/graphui/classes/com/jogamp/graph/ui/gl/Scene.java b/src/graphui/classes/com/jogamp/graph/ui/gl/Scene.java
index 39039d83d..5e7151076 100644
--- a/src/graphui/classes/com/jogamp/graph/ui/gl/Scene.java
+++ b/src/graphui/classes/com/jogamp/graph/ui/gl/Scene.java
@@ -96,6 +96,7 @@ public final class Scene implements GLEventListener {
private static final boolean DEBUG = false;
private final ArrayList<Shape> shapes = new ArrayList<Shape>();
+ private boolean doFrustumCulling = false;
private float[] clearColor = null;
private int clearMask;
@@ -164,6 +165,12 @@ public final class Scene implements GLEventListener {
/** Returns the {@link GL#glClear(int) glClear(..)} mask, see {@link #setClearParams(float[], int)}. */
public final int getClearMask() { return clearMask; }
+ /** Enable or disable {@link PMVMatrix#glGetFrustum()} culling per {@link Shape}. Default is disabled. */
+ public final void setFrustumCullingEnabled(final boolean v) { doFrustumCulling = v; }
+
+ /** Return whether {@link #setFrustumCullingEnabled(boolean) frustum culling} is enabled. */
+ public final boolean isFrustumCullingEnabled() { return doFrustumCulling; }
+
public void attachInputListenerTo(final GLWindow window) {
if(null == sbcMouseListener) {
sbcMouseListener = new SBCMouseListener();
@@ -289,7 +296,7 @@ public final class Scene implements GLEventListener {
private static final int[] sampleCountGLSelect = { -1 };
- private void display(final GLAutoDrawable drawable, final Object[] shapesS, final boolean glSelect) {
+ private void display(final GLAutoDrawable drawable, final Object[] shapes, final boolean glSelect) {
final GL2ES2 gl = drawable.getGL().getGL2ES2();
final int[] sampleCount0;
@@ -315,22 +322,25 @@ public final class Scene implements GLEventListener {
}
//final int shapeCount = shapes.size();
- final int shapeCount = shapesS.length;
+ final int shapeCount = shapes.length;
for(int i=0; i<shapeCount; i++) {
// final UIShape uiShape = shapes.get(i);
- final Shape uiShape = (Shape)shapesS[i];
+ final Shape shape = (Shape)shapes[i];
// System.err.println("Id "+i+": "+uiShape);
- if( uiShape.isEnabled() ) {
+ if( shape.isEnabled() ) {
pmv.glPushMatrix();
- uiShape.setTransform(pmv);
- if( glSelect ) {
- final float color = ( i + 1f ) / ( shapeCount + 2f );
- // FIXME
- // System.err.printf("drawGL: color %f, index %d of [0..%d[%n", color, i, shapeCount);
- renderer.getRenderState().setColorStatic(color, color, color, 1f);
- uiShape.drawGLSelect(gl, renderer, sampleCount0);
- } else {
- uiShape.draw(gl, renderer, sampleCount0);
+ shape.setTransform(pmv);
+
+ if( !doFrustumCulling || !pmv.glGetFrustum().isAABBoxOutside( shape.getBounds() ) ) {
+ if( glSelect ) {
+ final float color = ( i + 1f ) / ( shapeCount + 2f );
+ // FIXME
+ // System.err.printf("drawGL: color %f, index %d of [0..%d[%n", color, i, shapeCount);
+ renderer.getRenderState().setColorStatic(color, color, color, 1f);
+ shape.drawGLSelect(gl, renderer, sampleCount0);
+ } else {
+ shape.draw(gl, renderer, sampleCount0);
+ }
}
pmv.glPopMatrix();
}
--
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