eessppeelllloo/processing4
1
0
Fork 0
mirror of https://github.com/processing/processing4.git synced 2026-02-04 06:09:17 +01:00
Code Issues Packages Projects Releases Wiki Activity

correctly implements SUBTRACT blend mode

Browse Source
This commit is contained in:
codeanticode
2013-10-03 18:23:04 -04:00
parent 312fb99508
commit eb72df7340
1 changed files with 6 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
core/src/processing/opengl/PGraphicsOpenGL.java
View File

@@ -5690,9 +5690,11 @@ public class PGraphicsOpenGL extends PGraphics {
} else if (blendMode == SUBTRACT) {
if (blendEqSupported) {
pgl.blendEquation(PGL.FUNC_ADD);
pgl.blendEquation(PGL.FUNC_REVERSE_SUBTRACT);
pgl.blendFunc(PGL.ONE, PGL.SRC_ALPHA);
} else {
PGraphics.showWarning(BLEND_DRIVER_ERROR, "SUBTRACT");
}
pgl.blendFunc(PGL.ONE_MINUS_DST_COLOR, PGL.ZERO);
} else if (blendMode == LIGHTEST) {
if (blendEqSupported) {
@@ -5712,11 +5714,9 @@ public class PGraphicsOpenGL extends PGraphics {
} else if (blendMode == DIFFERENCE) {
if (blendEqSupported) {
pgl.blendEquation(PGL.FUNC_REVERSE_SUBTRACT);
pgl.blendFunc(PGL.ONE, PGL.ONE);
} else {
PGraphics.showWarning(BLEND_DRIVER_ERROR, "DIFFERENCE");
pgl.blendEquation(PGL.FUNC_ADD);
}
pgl.blendFunc(PGL.ONE_MINUS_DST_COLOR, PGL.ZERO);
} else if (blendMode == EXCLUSION) {
if (blendEqSupported) {