Hi,

how can I access and modify the projection matrix within a PGraphics object?

E.g. I have the following code:

Code:

.
// in variable definition section
PGraphics pr_top;
.
.
// in setup
pr_top = createGraphics(pr_top_width,pr_top_height,P3D);
.
.
// in a draw subroutine
pr_top.beginDraw();
pr_top.background(255);
// define projection
// some transformations
// some drawing operations
.
.
pr_top.endDraw();
image(pr_top,pr_top_left_offset,pr_top_top_offset);
.
.
 

camera() and perspective() do not help here much, because I need a special projection that has the vanishing point behind the camera (object(s) get larger with increasing distance from eye, not smaller as with standard perspective).

Accessing e.g. pr_top.projection.m00 or g.pr_top.projection.m00 did not work. If I know how to access such an element, I can figure out the projection matrix myself.

Thank you very much for your help.

Martin