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movieEvent bug in combination with mipmaps #218
Description
I tried to isolate the problem, but if I get rid of the PGraphics for example the bug seems to disappear.
If I run the below script I get:
import processing.video.*;
PGraphics big;
PGraphics small;
boolean from_big_pg = true;
Movie movie;
void setup() {
size(320, 180, P2D);
movie = new Movie(this, "big.mp4");
movie.loop();
big = createGraphics(1280, 720, P2D);
small = createGraphics(32, 18, P2D);
}
//void movieEvent(Movie m) {
// m.read();
//}
void draw() {
if (movie.available()) {
movie.read();
}
// only works with `void movieEvent(Movie m)`
// and not with `if (movie.available())` (it stays grey)
gl_texture(movie).usingMipmaps(true, 3);
gl_texture(big).usingMipmaps(true, 3);
gl_texture(small).usingMipmaps(true, 3);
big.beginDraw();
big.image(movie, 0, 0, big.width, big.height);
big.endDraw();
small.beginDraw();
small.image(from_big_pg ? big : movie, 0, 0, small.width, small.height);
small.endDraw();
image(small, 0, 0, 320, 180);
}
public Texture gl_texture(PImage img) {
return ((PGraphicsOpenGL)g).getTexture(img);
}If I comment out the following: (which is not what I want):
gl_texture(movie).usingMipmaps(true, 3);
gl_texture(big).usingMipmaps(true, 3);
gl_texture(small).usingMipmaps(true, 3);Then it works again:
Now the interesting part:
If I use:
void movieEvent(Movie m) {
m.read();
}Instead of:
if (movie.available()) {
movie.read();
}Then the usingMipmaps part works...
(Also if the usingMipmaps is before if (movie.available()) { then there is a nullpointerException).
The video file:
https://github.com/processing/processing-video/assets/738650/f7a6ba31-b697-49fb-aeac-110823d0453d
Activity
clankill3r commentedon Feb 13, 2024
Ok, I figured something out.
Switching the filter for the mipmap every frame makes it works, of course this is a workaround and not a fix but I can live with it for now.