it seems like camera objects are 'flattening' the image, opengl glsl cel shading (see images)

riceje7

it seems like camera objects are 'flattening' the image, opengl glsl cel shading (see images)

in Contributed Library Questions • 1 years ago

so i am attempting to get a handle on cell shading using GLSLshader in GLGraphics. however whenever i add a camera (i've tried the processing camera, and peasycam) the image looses its depth and the model becomes almost all one color. see the picture below:

NO CAM (This is what i want the image to look like when using a camera view):

WITH P5 CAMERA:

WITH PEASYCAM:

im new to opengl and don't understand what's going on, can anyone help me figure it out?

Replies(3)

andres

Re: it seems like camera objects are 'flattening' the image, opengl glsl cel shading (see images)

1 years ago

Can you post the code you are using in the two later cases (P5 camera and Peasycam)?

riceje7

Re: it seems like camera objects are 'flattening' the image, opengl glsl cel shading (see images)

1 years ago

i'm just using the simple camera setups:

PEASY:

import peasy.*;
PeasyCam cam; //global
cam = new PeasyCam(this, 0, 0, 0, 500); // in setup(){}

P5:

camera(0, 0, 0, 0, 300, 600, 0, 1, 0);

that's why i don't understand what's going on cause i'm not changing any special settings, because, correct me if i'm wrong, when you render a 3d model without explicitly calling a camera doesn't processing just use a default camera setup?

andres

Re: it seems like camera objects are 'flattening' the image, opengl glsl cel shading (see images)

1 years ago

Actually, there was an error in the original example, where first lights() was calling (enabling some initial default light sources) and then a second point was added. Only the point light should be added:

import processing.opengl.*;
import codeanticode.glgraphics.*;
import peasy.*;
PeasyCam cam;
GLModel torus;
GLSLShader shader;
float angle;
void setup() {
size(800, 600, GLConstants.GLGRAPHICS);
torus = createTorus(100, 50, 20, 100, 200, 0, 150, 255, "");
shader = new GLSLShader(this, "toonvert.glsl", "toonfrag.glsl");
cam = new PeasyCam(this, 600);
cam.setMinimumDistance(50);
cam.setMaximumDistance(1000);
}
void draw() {
GLGraphics renderer = (GLGraphics)g;
renderer.beginGL();
background(0);
pointLight(250, 250, 250, 0, 600, 400);
shader.start();
renderer.model(torus);
shader.stop();
renderer.endGL();
}

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