eessppeelllloo/processing4
1
0
Fork 0
mirror of https://github.com/processing/processing4.git synced 2026-02-03 21:59:20 +01:00
Code Issues Packages Projects Releases Wiki Activity

Enabling/disabling of depth mask in PShape3D

Browse Source
This commit is contained in:
codeanticode
2010-05-08 08:05:44 +00:00
parent 041e3d9b4c
commit db24df36ab
2 changed files with 24 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
android/core/src/processing/core/PGraphicsAndroid3D.java
View File

@@ -537,7 +537,7 @@ public class PGraphicsAndroid3D extends PGraphics {
}
// use <= since that's what processing.core does
gl.glDepthFunc(GL10.GL_LEQUAL);
// because y is flipped
gl.glFrontFace(GL10.GL_CW);

25
android/core/src/processing/core/PShape3D.java
View File

@@ -85,6 +85,8 @@ public class PShape3D extends PShape implements PConstants {
protected float ptDistAtt[] = { 1.0f, 0.0f, 0.01f, 1.0f };
protected boolean depthMaskEnabled = true;
protected static final int SIZEOF_FLOAT = Float.SIZE / 8;
@@ -1369,6 +1371,14 @@ public class PShape3D extends PShape implements PConstants {
// Parameters
public void noDepthMask() {
depthMaskEnabled = false;
}
public void depthMask() {
depthMaskEnabled = true;
}
public void setDrawMode(int mode) {
pointSprites = false;
@@ -1742,7 +1752,14 @@ public class PShape3D extends PShape implements PConstants {
// Setting line width and point size from stroke value.
pointSize = PApplet.min(a3d.strokeWeight, a3d.maxPointSize);
gl.glPointSize(pointSize);
if (!depthMaskEnabled) {
// Disabling writing to depth mask. This is useful to avoid artifacts when rendering particle systems.
// Proper rendering of a particle system with particles that have transparency involves depth-sorting,
// but it is expensive. In most cases, doing this is good enough.
gl.glDepthMask(false);
}
gl.glEnableClientState(GL11.GL_NORMAL_ARRAY);
gl.glBindBuffer(GL11.GL_ARRAY_BUFFER, glNormalBufferID[0]);
gl.glNormalPointer(GL11.GL_FLOAT, 0, 0);
@@ -1774,7 +1791,7 @@ public class PShape3D extends PShape implements PConstants {
if (pointSprites) {
// Texturing with point sprites.
// This is how will our point sprite's size will be modified by
// distance from the viewer
gl.glPointParameterfv(GL11.GL_POINT_DISTANCE_ATTENUATION, ptDistAtt, 0);
@@ -1831,6 +1848,10 @@ public class PShape3D extends PShape implements PConstants {
gl.glDisable(texTarget);
}
}
if (!depthMaskEnabled) {
gl.glDepthMask(true);
}
gl.glBindBuffer(GL11.GL_ARRAY_BUFFER, 0);
gl.glDisableClientState(GL11.GL_VERTEX_ARRAY);