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disable depth test in PGL.drawTexture method

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This commit is contained in:
codeanticode
2012-06-25 15:55:53 +00:00
parent 9ad3fdd351
commit 016047d337
2 changed files with 65 additions and 20 deletions
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51
java/libraries/opengl/src/processing/opengl/PGL.java
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@@ -1552,13 +1552,17 @@ public class PGL {
}
if (0 < tex2DShaderProgram) {
// The texture overwrites anything drawn earlier.
boolean[] depthTest = new boolean[1];
glGetBooleanv(GL_DEPTH_TEST, depthTest, 0);
glDisable(GL_DEPTH_TEST);
// When drawing the texture we don't write to the
// depth mask, so the texture remains in the background
// and can be occluded by anything drawn later, even if
// if it is behind it.
boolean[] val = new boolean[1];
glGetBooleanv(GL_DEPTH_WRITEMASK, val, 0);
boolean writeMask = val[0];
boolean[] depthMask = new boolean[1];
glGetBooleanv(GL_DEPTH_WRITEMASK, depthMask, 0);
glDepthMask(false);
glUseProgram(tex2DShaderProgram);
@@ -1613,7 +1617,12 @@ public class PGL {
glUseProgram(0);
glDepthMask(writeMask);
if (depthTest[0]) {
glEnable(GL_DEPTH_TEST);
} else {
glDisable(GL_DEPTH_TEST);
}
glDepthMask(depthMask[0]);
}
}
@@ -1640,13 +1649,17 @@ public class PGL {
}
if (0 < texRectShaderProgram) {
// The texture overwrites anything drawn earlier.
boolean[] depthTest = new boolean[1];
glGetBooleanv(GL_DEPTH_TEST, depthTest, 0);
glDisable(GL_DEPTH_TEST);
// When drawing the texture we don't write to the
// depth mask, so the texture remains in the background
// and can be occluded by anything drawn later, even if
// if it is behind it.
boolean[] val = new boolean[1];
glGetBooleanv(GL_DEPTH_WRITEMASK, val, 0);
boolean writeMask = val[0];
boolean[] depthMask = new boolean[1];
glGetBooleanv(GL_DEPTH_WRITEMASK, depthMask, 0);
glDepthMask(false);
glUseProgram(texRectShaderProgram);
@@ -1701,7 +1714,12 @@ public class PGL {
glUseProgram(0);
glDepthMask(writeMask);
if (depthTest[0]) {
glEnable(GL_DEPTH_TEST);
} else {
glDisable(GL_DEPTH_TEST);
}
glDepthMask(depthMask[0]);
}
}
@@ -1724,13 +1742,17 @@ public class PGL {
}
if (0 < rectShaderProgram) {
// The rectangle overwrites anything drawn earlier.
boolean[] depthTest = new boolean[1];
glGetBooleanv(GL_DEPTH_TEST, depthTest, 0);
glDisable(GL_DEPTH_TEST);
// When drawing the rectangle we don't write to the
// depth mask, so the rectangle remains in the background
// and can be occluded by anything drawn later, even if
// if it is behind it.
boolean[] val = new boolean[1];
glGetBooleanv(GL_DEPTH_WRITEMASK, val, 0);
boolean writeMask = val[0];
boolean[] depthMask = new boolean[1];
glGetBooleanv(GL_DEPTH_WRITEMASK, depthMask, 0);
glDepthMask(false);
glUseProgram(rectShaderProgram);
@@ -1771,7 +1793,12 @@ public class PGL {
glUseProgram(0);
glDepthMask(writeMask);
if (depthTest[0]) {
glEnable(GL_DEPTH_TEST);
} else {
glDisable(GL_DEPTH_TEST);
}
glDepthMask(depthMask[0]);
}
}