from gletools.gl import *
window = pyglet.window.Window()
texture = Texture(256, 256, filter=GL_LINEAR)
framebuffer = Framebuffer()
framebuffer.textures[0] = texture
screen = Screen(0, 0, texture.width, texture.height)
projection = Projection(0, 0, window.width, window.height)
program = ShaderProgram(
FragmentShader('''
uniform vec3 seed_vector;
float nice_noise1(vec2 co){
return fract(sin(dot(co.xy, vec2(12.9898, 78.233))) * 43758.5453);
}
void main(){
gl_FragColor = vec4(
nice_noise1(gl_TexCoord[0].xy * seed_vector.x),
nice_noise1(gl_TexCoord[0].xy * seed_vector.y),
nice_noise1(gl_TexCoord[0].xy * seed_vector.z),
0
);
}''')
)
from random import random
program.vars.seed_vector = [random() for _ in xrange(3)]
rotation = 0.0
def quad(min=0.0, max=1.0):
glBegin(GL_QUADS)
glTexCoord2f(1.0, 1.0)
glVertex3f(max, max, 0.0)
from contextlib import nested
import pyglet
from gletools import ShaderProgram, FragmentShader, Texture, Framebuffer, Projection, Screen
from gletools.gl import *
window = pyglet.window.Window()
texture = Texture(64, 64, filter=GL_LINEAR)
screen = Screen(0, 0, texture.width, texture.height)
projection = Projection(0, 0, window.width, window.height)
framebuffer = Framebuffer()
framebuffer.textures[0] = texture
program = ShaderProgram(
FragmentShader('''
uniform float size;
void main(){
vec4 vec = vec4(gl_FragCoord.x-size/2.0, gl_FragCoord.y-size/2.0, 0.0, 1.0) / size;
gl_FragColor = (normalize(vec) + 1.0) / 2.0;
}'''))
program.vars.size = 64.0
rotation = 0.0
def quad(min=0.0, max=1.0):
glBegin(GL_QUADS)
glTexCoord2f(1.0, 1.0)
glVertex3f(max, max, 0.0)
glTexCoord2f(1.0, 0.0)
glVertex3f(max, min, 0.0)
glTexCoord2f(0.0, 0.0)
glVertex3f(min, min, 0.0)
glTexCoord2f(0.0, 1.0)
blur = ShaderProgram(
depth_shader,
FragmentShader.open('shader.frag'),
)
blur.vars.width = float(window.width)
blur.vars.height = float(window.height)
blur.vars.texture = Sampler2D(GL_TEXTURE0)
blur.vars.depthmap = Sampler2D(GL_TEXTURE1)
depth = ShaderProgram(
depth_shader,
FragmentShader('''
varying float depth;
uniform sampler2D texture;
void main(){
vec4 color = texture2D(texture, gl_TexCoord[0].st);
gl_FragData[0] = color;
gl_FragData[1] = color;
gl_FragData[2] = vec4(depth, depth, depth, 1.0);
}
'''),
)
rotation = 0.0
def quad(left, right, top, bottom):
glBegin(GL_QUADS)
glTexCoord2f(1.0, 1.0)
glVertex3f(right, top, 0.0)
glTexCoord2f(1.0, 0.0)
glVertex3f(right, bottom, 0.0)
