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strips when rendering spheres with lights and anti-aliasing #1185

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processing-bugs opened this Issue Feb 10, 2013 · 3 comments

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processing-bugs commented Feb 10, 2013

Original author: andres.c...@gmail.com (July 30, 2012 15:36:45)

Running the following sketch:

void setup() {
size(400, 400, P3D);

noStroke();
smooth(4);
}

void draw() {
background(0);
lights();

translate(width/2, height/2);

rotateY(frameCount * 0.02);
translate(150, 0);

sphere(40);
}

with 2.0a6 and 2.0a7 on newer nvidia hardware (570GTX, 650M) results in strips appearing along the edges of the triangles in the spehre. These strips disappear when disabling lights and/or smoothing. It doesn't occur on older nvidia hardware such as geforce 320M, or AMD Radeon HD 6490M and Intel HD Graphics 3000.

Original issue: http://code.google.com/p/processing/issues/detail?id=1147

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processing-bugs Feb 10, 2013

From andres.c...@gmail.com on August 23, 2012 16:30:34
Also see "GLSL: Center or Centroid?" article in this issue of the OpenGL pipeline newsletter:

http://www.opengl.org/img/uploads/pipeline/pipeline_003.pdf

processing-bugs commented Feb 10, 2013

From andres.c...@gmail.com on August 23, 2012 16:30:34
Also see "GLSL: Center or Centroid?" article in this issue of the OpenGL pipeline newsletter:

http://www.opengl.org/img/uploads/pipeline/pipeline_003.pdf

@ghost ghost assigned codeanticode Feb 11, 2013

@benfry benfry removed the bug label Nov 15, 2014

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codeanticode May 30, 2015

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cannot no longer reproduce this issue (tested on intel HD Graphics 5000 and geforce GT 750 M)

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codeanticode commented May 30, 2015

cannot no longer reproduce this issue (tested on intel HD Graphics 5000 and geforce GT 750 M)

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