def reloadShaders(self):
with open('shaders/ocean.fragment') as f:
fshader = shader.FragmentShader([f.read()])
with open('shaders/ocean.vertex') as f:
vshader = shader.VertexShader([f.read()])
self.surfaceShader = shader.ShaderProgram(fshader, vshader)
self.surfaceShader.use()
self.surface.setShader(self.surfaceShader)
def load_shader():
s = shader.ShaderProgram()
# s.setShader(shader.VertexShader('test_v', test_v))
s.setShader(shader.FragmentShader('test_f', test_f))
return s
void main(void) {
float v;
float a = atan(position.y, position.x);
float arc = 3.14159 / 3.0;
if (a > -arc && a < arc) {
v = pnoise(position) * 0.5 + 0.5;
} else if (a > arc && a < arc * 4.0) {
v = fbmnoise(position, 4) * 0.5 + 0.5;
} else {
v = fbmturbulence(position, 4) * 0.5 + 0.5;
}
gl_FragColor = vec4(v, v, v, 1.0);
}
''')
shader_prog = shader.ShaderProgram(vert_shader, frag_shader)
shader_prog.install()
tex = ShaderNoiseTexture()
tex.load()
tex.enable()
shader_prog.uset1I('shader_noise_tex', 0)
quadratic = gluNewQuadric()
gluQuadricNormals(quadratic, GLU_SMOOTH)
gluQuadricTexture(quadratic, GL_TRUE)
glEnable(GL_CULL_FACE)
global spin
spin = 0
def on_resize(width, height):
glViewport(0, 0, width, height)
uniform float strength;
void main() {
vec2 h = vec2(1.0/size.x, 0.0);
vec2 pos = gl_TexCoord[0].st;
vec2 v = pos - mouse;
float d = length(v);
v = normalize(v);
v = v * clamp(exp(2. * d) / strength, 0., 1.);
gl_FragColor = texture2D(tex, pos + v);
}
"""
pinch = shader.ShaderProgram()
pinch.setShader(shader.FragmentShader('pinch_f', pinch_f))
pinch.install()
pinch.uset2F('size', float(kitten.width), float(kitten.height))
@w.event
def on_mouse_motion(x, y, *args):
pinch.uset2F('mouse', float(x) / kitten.width, float(y) / kitten.height)
return True
strength = 50.
pinch.uset1F('strength', strength)
def _buildBallShader():
ball_shader = shader.ShaderProgram(
shader.VertexShader("""
void main(){
gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
}"""),
shader.FragmentShader("""
uniform vec2 position;
uniform float radius;
uniform vec3 rgb;
uniform vec3 shimmer;
uniform vec2 core_position;
uniform float core_radius;
const float border_width = 1.2;
const float shimmer_radius = 1.75;
void main(){
float r = rgb.r;
float g = rgb.g;
float b = rgb.b;
//Calculate distance from centre of current blob.
float distance = sqrt(
pow((position.x - gl_FragCoord.x), 2.0) +
pow((position.y - gl_FragCoord.y), 2.0)
);
//Calculate distance from core blob.
float core_distance = sqrt(
pow((core_position.x - gl_FragCoord.x), 2.0) +
pow((core_position.y - gl_FragCoord.y), 2.0)
);
if(core_distance >= core_radius - border_width && abs(distance - radius) <= border_width){
gl_FragColor = vec4(
min(1.0, r * 2.0),
min(1.0, g * 2.0),
min(1.0, b * 2.0),
0.95
);
}else{
//Brighten the core of each blob.
float brightness_mod = 0.05;
if(distance < 0.75){//Draw a bright dot right in the centre.
brightness_mod = 0.25 + sqrt(1.0 / distance);
}else{//Apply shimmer.
float shimmer_x = mod(gl_FragCoord.x + shimmer.x, shimmer[2]);
float shimmer_y = mod(gl_FragCoord.y + shimmer.y, shimmer[2]);
if(shimmer_x >= shimmer[2] - shimmer_radius){
shimmer_x -= shimmer[2] + shimmer_radius;
}
if(shimmer_y >= shimmer[2] - shimmer_radius){
shimmer_y -= shimmer[2] + shimmer_radius;
}
float shimmer_distance = sqrt(pow(shimmer_x, 2.0) + pow(shimmer_y, 2.0));
if(shimmer_distance <= shimmer_radius){
brightness_mod += min(0.9, sqrt(
shimmer_distance / shimmer_radius
));
}else{
brightness_mod = 0.3;
r = 0.4;
g = 0.0;
b = 0.6;
}
}
gl_FragColor = vec4(
min(1.0, r * brightness_mod),
min(1.0, g * brightness_mod),
min(1.0, b * brightness_mod),
0.95
);
}
}"""))
_shader_message = ball_shader.link()
if _shader_message and __debug__:
print _shader_message
return ball_shader