def initializeGL(self):
try:
GL.Init()
GL.Viewport(0, 0, context['width'], context['height'])
vert = GL.NewVertexShader('''
#version 330
in vec2 vert;
out vec2 tex;
void main() {
gl_Position = vec4(vert, 0.0, 1.0);
tex = vert / 2.0 + vec2(0.5, 0.5);
}
''')
frag = GL.NewFragmentShader('''
#version 330
in vec2 tex;
out vec4 color;
uniform float scale;
uniform vec2 center;
uniform int iter;
void main() {
vec2 z = vec2(5.0 * (tex.x - 0.5), 3.0 * (tex.y - 0.5));
vec2 c = vec2(1.33 * (tex.x - 0.5) * scale - center.x, (tex.y - 0.5) * scale - center.y);
int i;
for(i = 0; i < iter; i++) {
vec2 v = vec2((z.x * z.x - z.y * z.y) + c.x, (z.y * z.x + z.x * z.y) + c.y);
if (dot(v, v) > 4.0) break;
z = v;
}
float cm = fract((i == iter ? 0.0 : float(i)) * 10 / iter);
color = vec4(fract(cm + 0.0 / 3.0), fract(cm + 1.0 / 3.0), fract(cm + 2.0 / 3.0), 1.0);
}
''')
prog = GL.NewProgram([vert, frag])
context['center'] = prog['center']
context['scale'] = prog['scale']
vbo = GL.NewVertexBuffer(
struct.pack('8f', -1.0, -1.0, -1.0, 1.0, 1.0, -1.0, 1.0, 1.0))
context['vao'] = GL.NewVertexArray(prog, vbo, '2f', ['vert'])
GL.SetUniform(prog['iter'], 100)
GL.SetUniform(prog['scale'], 1.0)
GL.SetUniform(prog['center'], 0.3, 0.2)
except GL.Error as error:
print(error)
exit(1)
def paintGL(self):
context['mx'] += context['dmx']
context['my'] += context['dmy']
context['s'] += context['ds']
GL.Clear(240, 240, 240)
GL.SetUniform(context['center'], context['mx'], context['my'])
GL.SetUniform(context['scale'], 0.5**context['s'])
GL.RenderTriangleStrip(context['vao'], 4)
self.update()
def paintGL(self):
z = 0.5**context['s']
context['mx'] += context['dmx'] * z
context['my'] += context['dmy'] * z
context['s'] += context['ds']
GL.Clear(240, 240, 240)
GL.SetUniform(context['pos'], context['mx'] / z, context['my'] / z)
GL.SetUniform(context['zoom'], z)
GL.RenderTriangleStrip(context['vao'], 4)
self.update()
def initializeGL(self):
try:
GL.Init()
GL.Viewport(0, 0, context['width'], context['height'])
vert = GL.NewVertexShader('''
#version 330
uniform vec2 pos;
uniform float zoom;
in vec2 vert;
out vec2 textcoord;
void main() {
gl_Position = vec4(vert, 0.0, 1.0);
textcoord = ((vert + pos) * zoom) / 2.0 + vec2(0.5, 0.5);
}
''')
frag = GL.NewFragmentShader('''
#version 330
in vec2 textcoord;
out vec4 color;
uniform int iter;
void main() {
vec2 z = vec2(3.0 * (textcoord.x - 0.5), 2.0 * (textcoord.y - 0.5));
vec2 c = vec2(0.0, 1.0);
int i;
for(i = 0; i < iter; i++) {
float x = (z.x * z.x - z.y * z.y) + c.x;
float y = (z.y * z.x + z.x * z.y) + c.y;
if ((x * x + y * y) > 4.0) break;
z.x = x;
z.y = y;
}
float cm = fract((i == iter ? 0.0 : float(i)) * 10 / iter);
color = vec4(fract(cm + 0.0 / 3.0), fract(cm + 1.0 / 3.0), fract(cm + 2.0 / 3.0), 1.0);
}
''')
prog = GL.NewProgram([vert, frag])
context['pos'] = prog['pos']
context['zoom'] = prog['zoom']
vbo = GL.NewVertexBuffer(
struct.pack('8f', -1.0, -1.0, -1.0, 1.0, 1.0, -1.0, 1.0, 1.0))
context['vao'] = GL.NewVertexArray(prog, vbo, '2f', ['vert'])
GL.SetUniform(prog['iter'], 100)
except GL.Error as error:
print(error)
exit(1)
def initializeGL(self):
try:
GL.Init()
GL.Viewport(0, 0, context['width'], context['height'])
vert = GL.NewVertexShader('''
#version 330
in vec2 vert;
out vec2 tex_coord;
uniform vec2 scale;
uniform float rotation;
void main() {
mat2 rot = mat2(cos(rotation), sin(rotation), -sin(rotation), cos(rotation));
gl_Position = vec4((rot * vert) * scale, 0.0, 1.0);
tex_coord = vert;
}
''')
frag = GL.NewFragmentShader('''
#version 330
uniform sampler2D texture;
in vec2 tex_coord;
out vec4 color;
void main() {
color = vec4(texture2D(texture, tex_coord).rgb, 1.0);
}
''')
prog = GL.NewProgram([vert, frag])
context['rotation'] = prog['rotation']
vbo = GL.NewVertexBuffer(
struct.pack('6f', 1.0, 0.0, -0.5, 0.86, -0.5, -0.86))
context['vao'] = GL.NewVertexArray(prog, vbo, '2f', ['vert'])
GL.SetUniform(prog['scale'],
context['height'] / context['width'] * 0.75, 0.75)
tex = GL.NewTexture(256, 256,
Image.open('../DataFiles/Noise.jpg').tobytes())
GL.UseTexture(tex)
except GL.Error as error:
print(error)
exit(1)
def initializeGL(self):
try:
GL.Init()
GL.Viewport(0, 0, context['width'], context['height'])
vert = GL.NewVertexShader('''
#version 330
in vec2 vert;
in vec3 vert_color;
out vec3 frag_color;
uniform vec2 scale;
uniform float rotation;
void main() {
frag_color = vert_color;
mat2 rot = mat2(cos(rotation), sin(rotation), -sin(rotation), cos(rotation));
gl_Position = vec4((rot * vert) * scale, 0.0, 1.0);
}
''')
frag = GL.NewFragmentShader('''
#version 330
in vec3 frag_color;
out vec4 color;
void main() {
color = vec4(frag_color, 1.0);
}
''')
prog = GL.NewProgram([vert, frag])
context['rotation'] = prog['rotation']
vbo = GL.NewVertexBuffer(
struct.pack('15f', 1.0, 0.0, 1.0, 0.0, 0.0, -0.5, 0.86, 0.0,
1.0, 0.0, -0.5, -0.86, 0.0, 0.0, 1.0))
context['vao'] = GL.NewVertexArray(prog, vbo, '2f3f',
['vert', 'vert_color'])
GL.SetUniform(prog['scale'],
context['height'] / context['width'] * 0.75, 0.75)
except GL.Error as error:
print(error)
exit(1)
def on_draw(): GL.Clear(240, 240, 240) GL.SetUniform(prog['rotation'], elapsed) GL.RenderTriangles(vao, 3)
frag = GL.NewFragmentShader('''
#version 330
in vec3 frag_color;
out vec4 color;
void main() {
color = vec4(frag_color, 1.0);
}
''')
prog = GL.NewProgram([vert, frag])
vbo = GL.NewVertexBuffer(struct.pack('15f', 1.0, 0.0, 1.0, 0.0, 0.0, -0.5, 0.86, 0.0, 1.0, 0.0, -0.5, -0.86, 0.0, 0.0, 1.0))
vao = GL.NewVertexArray(prog, vbo, '2f3f', ['vert', 'vert_color'])
GL.SetUniform(prog['scale'], window.height / window.width * 0.75, 0.75)
def update(dt):
global elapsed
elapsed = time.time() - start
@window.event
def on_draw():
GL.Clear(240, 240, 240)
GL.SetUniform(prog['rotation'], elapsed)
GL.RenderTriangles(vao, 3)
pyglet.clock.schedule_interval(update, 1 / 60)
pyglet.app.run()
vbo = GL.NewVertexBuffer(data)
ibo = GL.NewIndexBuffer(idata)
vao = GL.NewVertexArray(grass_prog, vbo, '3f3f3f1f1f',
['vert', 'direction', 'color', 'thickness', 'power'],
ibo)
ssao_vbo = GL.NewVertexBuffer(
struct.pack('8f', 0.0, 0.0, 0.0, 1.0, 1.0, 0.0, 1.0, 1.0))
ssao_vao = GL.NewVertexArray(ssao_prog, ssao_vbo, '2f', ['vert'])
ubo = GL.NewUniformBuffer(b''.join(struct.pack('2f', x, y) for x, y in kernel))
fbo, color, depth = GL.NewFramebuffer()
GL.SetUniform(grass_prog['mat'], struct.pack('16f', *camera))
GL.SetUniform(ssao_prog['texture'], 0)
GL.SetUniform(ssao_prog['depth'], 1)
GL.UseUniformBuffer(ubo, ssao_prog['Kernel'])
while WND.Update():
GL.UseFramebuffer(fbo)
GL.EnableDepthTest()
GL.Clear(0, 0, 0)
GL.RenderTriangleStrip(vao, 1000 * 8)
GL.UseFramebuffer(GL.SCREEN)
GL.DisableDepthTest()
GL.UseTexture(color, 0)
def display(): GL.Clear(240, 240, 240) GL.SetUniform(prog['rotation'], time.time() - start) GL.RenderTriangles(vao, 3) glutSwapBuffers()
}
''')
frag = GL.NewFragmentShader('''
#version 330
in vec3 frag_color;
out vec4 color;
void main() {
color = vec4(frag_color, 1.0);
}
''')
prog = GL.NewProgram([vert, frag])
vbo = GL.NewVertexBuffer(struct.pack('15f', 1.0, 0.0, 1.0, 0.0, 0.0, -0.5, 0.86, 0.0, 1.0, 0.0, -0.5, -0.86, 0.0, 0.0, 1.0))
vao = GL.NewVertexArray(prog, vbo, '2f3f', ['vert', 'vert_color'])
GL.SetUniform(prog['scale'], height / width * 0.75, 0.75)
def display():
GL.Clear(240, 240, 240)
GL.SetUniform(prog['rotation'], time.time() - start)
GL.RenderTriangles(vao, 3)
glutSwapBuffers()
glutDisplayFunc(display)
glutIdleFunc(display)
glutMainLoop()
out vec4 color;
void main() {
color = vec4(0.30, 0.50, 1.00, 1.0);
}
''')
prog = GL.NewProgram([vert, frag])
transform = GL.NewTransformProgram([tvert], ['out_pos', 'out_prev'])
vbo1 = GL.NewVertexBuffer(b''.join(
struct.pack('2f2f', 0.0, 0.0, random.uniform(-0.001, 0.001),
random.uniform(-0.001, 0.0)) for i in range(1024)))
vbo2 = GL.NewVertexBuffer(b''.join(
struct.pack('2f2f', 0.0, 0.0, random.uniform(-0.001, 0.001),
random.uniform(-0.001, 0.0)) for i in range(1024)))
vao1 = GL.NewVertexArray(transform, vbo1, '2f2f', ['in_pos', 'in_prev'])
vao2 = GL.NewVertexArray(transform, vbo2, '2f2f', ['in_pos', 'in_prev'])
render_vao = GL.NewVertexArray(prog, vbo1, '2f8x', ['vert'])
GL.SetUniform(transform['acc'], 0, -0.00001)
while WND.Update():
GL.Clear(240, 240, 240)
GL.RenderPoints(render_vao, 1024)
GL.TransformPoints(vao1, vbo2, 1024)
GL.TransformPoints(vao2, vbo1, 1024)
}
''')
frag = GL.NewFragmentShader('''
#version 330
out vec4 color;
void main() {
color = vec4(0.04, 0.04, 0.04, 1.0);
}
''')
prog = GL.NewProgram([vert, frag])
GL.SetUniform(prog['znear'], 0.1)
GL.SetUniform(prog['zfar'], 1000.0)
GL.SetUniform(prog['ratio'], 16 / 9)
GL.SetUniform(prog['fovy'], 60)
GL.SetUniform(prog['eye'], 3, 3, 3)
GL.SetUniform(prog['center'], 0, 0, 0)
GL.SetUniform(prog['up'], 0, 0, 1)
grid = bytes()
for i in range(0, 65):
grid += struct.pack('6f', i - 32, -32.0, 0.0, i - 32, 32.0, 0.0)
grid += struct.pack('6f', -32.0, i - 32, 0.0, 32.0, i - 32, 0.0)
vbo = GL.NewVertexBuffer(grid)
def display():
GL.Clear(240, 240, 240)
GL.EnableOnly(GL.ENABLE_BLEND + GL.ENABLE_MULTISAMPLE)
GL.SetUniform(prog['rotation'], time.time() - start)
GL.RenderTriangles(vao, 3, instances=10)
glutSwapBuffers()
def on_draw():
GL.Clear(240, 240, 240)
GL.SetUniform(prog['rotation'], time.time() - start)
GL.RenderTriangles(vao, 3)
}
'''),
GL.NewFragmentShader('''
#version 330 core
out vec4 color;
void main() {
color = vec4(0.05, 0.05, 0.05, 1.0);
}
'''),
])
width, height = WND.GetSize()
GL.SetUniform(points['scale'], 10, 10 * height / width)
def vec(a, r=1):
return [math.cos(a) * r, math.sin(a) * r]
def rvec(a, b):
return vec(random.uniform(0.0, math.pi * 2.0), random.uniform(a, b))
P = numpy.array([[0.0, 0.0] for i in range(100)])
V = numpy.array([rvec(0.01, 0.05) for i in range(100)])
vbo = GL.NewVertexBuffer(P, dynamic=True)
vao = GL.NewVertexArray(points, vbo, '2d', ['vert'])
z.x = x;
z.y = y;
}
float cm = fract((i == iter ? 0.0 : float(i)) * 10 / iter);
color = vec4(fract(cm + 0.0 / 3.0), fract(cm + 1.0 / 3.0), fract(cm + 2.0 / 3.0), 1.0);
}
''')
prog = GL.NewProgram([vert, frag])
vbo = GL.NewVertexBuffer(
struct.pack('8f', -1.0, -1.0, -1.0, 1.0, 1.0, -1.0, 1.0, 1.0))
vao = GL.NewVertexArray(prog, vbo, '2f', ['vert'])
GL.SetUniform(prog['iter'], 100)
tx, ty = 0, 0
z = 1
while WND.Update():
GL.Clear(240, 240, 240)
dx, dy, mw = WND.GetMouse()
z *= 1.1**(mw / 150)
tx -= dx / 100 * z
ty += dy / 100 * z
GL.SetUniform(prog['pos'], tx / z, ty / z)
GL.SetUniform(prog['zoom'], z)
GL.RenderTriangleStrip(vao, 4)
#version 330
in vec3 frag_color;
out vec4 color;
void main() {
color = vec4(frag_color, 1.0);
}
''')
prog = GL.NewProgram([vert, frag])
vbo = GL.NewVertexBuffer(struct.pack('15f', 1.0, 0.0, 1.0, 0.0, 0.0, -0.5, 0.86, 0.0, 1.0, 0.0, -0.5, -0.86, 0.0, 0.0, 1.0))
vao = GL.NewVertexArray(prog, vbo, '2f3f', ['vert', 'vert_color'])
GL.SetUniform(prog['scale'], height / width * 0.75, 0.75)
running = True
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
GL.Clear(240, 240, 240)
GL.SetUniform(prog['rotation'], time.time() - start)
GL.RenderTriangles(vao, 3)
pygame.display.flip()
pygame.time.wait(10)
0.0,
0.0,
# B
-0.5,
0.86,
0.0,
1.0,
0.0,
# C
-0.5,
-0.86,
0.0,
0.0,
1.0,
]
packed_triangle = struct.pack('15f', *triangle)
vbo = GL.NewVertexBuffer(packed_triangle)
vao = GL.NewVertexArray(prog, vbo, '2f3f', ['vert', 'vert_color'])
width, height = WND.GetSize()
while WND.Update():
GL.Clear(240, 240, 240)
GL.SetUniform(prog['rotate'], WND.GetTime())
GL.SetUniform(prog['scale'], height / width * 0.75, 0.75)
GL.RenderTriangles(vao, 3, instances=10)
def paintGL(self):
GL.Clear(240, 240, 240)
GL.SetUniform(context['rotation'], time.time() - context['start'])
GL.RenderTriangles(context['vao'], 3)
self.update()
GL.RenderLineStrip() GL.RenderLines() GL.RenderPoints() GL.RenderTriangleFan() GL.RenderTriangleStrip() GL.RenderTriangles() GL.RenderLinesAdjacency() GL.RenderLineStripAdjacency() GL.RenderTrianglesAdjacency() GL.RenderTriangleStripAdjacency() GL.SetTextureFiltered() GL.SetTextureMipmapped() GL.SetTexturePixelated() GL.SetUniform() GL.SetUniformMatrix() # GL.UpdateIndexBuffer() # GL.UpdateTexture() # GL.UpdateUniformBuffer() # GL.UpdateVertexBuffer() GL.UseDefaultFramebuffer() GL.UseFramebuffer() GL.UseTexture() GL.UseTextureAsImage() GL.UseUniformBuffer() GL.Viewport()
frag = vec4(color, 1.0);
}
''')
prog = GL.NewProgram([vert, frag])
vbo = GL.NewVertexBuffer(
struct.pack('8f', -1.0, -1.0, -1.0, 1.0, 1.0, -1.0, 1.0, 1.0))
vao = GL.NewVertexArray(prog, vbo, '2f', ['vert'])
ssbo = GL.NewStorageBuffer(
open('../DataFiles/Raytrace-scene.dat', 'rb').read())
GL.UseStorageBuffer(ssbo, 1)
GL.SetUniform(prog['ratio'], 16 / 9)
x, y = 0.0, 0.0
while WND.Update():
GL.Clear(240, 240, 240)
if WND.KeyDown('A'):
x -= 0.04
if WND.KeyDown('D'):
x += 0.04
if WND.KeyDown('W'):
y += 0.04
if WND.KeyDown('S'):
y -= 0.04
def paintGL(self):
GL.Clear(240, 240, 240)
GL.EnableOnly(GL.ENABLE_BLEND + GL.ENABLE_MULTISAMPLE)
GL.SetUniform(context['rotation'], time.time() - context['start'])
GL.RenderTriangles(context['vao'], 3, instances=10)
self.update()
if (dot(sub, sub) < r * r) {
vec2 dir = p.pos - p.prev;
p.pos = circle[i].pos + normalize(sub) * r;
p.prev = p.pos - reflect(dir, normalize(sub)) * 0.7;
}
}
}
void main() {
update(particle[gl_GlobalInvocationID.x]);
}
''')
circles_prog = GL.NewProgram([circles_vert, circles_frag])
GL.SetUniform(circles_prog['scale'], 0.002 * height / width, 0.002)
circle_vbo = GL.NewVertexBuffer(b''.join(struct.pack('2f', cos(i * 2 * pi / 128), sin(i * 2 * pi / 128)) for i in range(128)))
circle_vao = GL.NewVertexArray(circles_prog, circle_vbo, '2f', ['vert'])
circles = [
(-400, -200, 100),
(-250, -350, 100),
(0, -300, 100),
(250, -350, 100),
(400, -200, 100),
]
circles_ubo = GL.NewUniformBuffer(struct.pack('i4x', len(circles)) + b''.join(struct.pack('2f1f4x', *c) for c in circles))
GL.UseUniformBuffer(circles_ubo, circles_prog['Circles'])
if (dot(v, v) > 4.0) break;
z = v;
}
float cm = fract((i == iter ? 0.0 : float(i)) * 10 / iter);
color = vec4(fract(cm + 0.0 / 3.0), fract(cm + 1.0 / 3.0), fract(cm + 2.0 / 3.0), 1.0);
}
''')
prog = GL.NewProgram([vert, frag])
vbo = GL.NewVertexBuffer(
struct.pack('8f', -1.0, -1.0, -1.0, 1.0, 1.0, -1.0, 1.0, 1.0))
vao = GL.NewVertexArray(prog, vbo, '2f', ['vert'])
GL.SetUniform(prog['iter'], 100)
GL.SetUniform(prog['scale'], 1.0)
GL.SetUniform(prog['center'], 0.3, 0.2)
x, y, scale = 0, 0, 1
while WND.Update():
GL.Clear(240, 240, 240)
mx, my, mw = WND.GetMouse()
scale *= 1.1**(mw / 150)
x += mx / 100
y += my / 100
GL.SetUniform(prog['center'], x, y)
GL.SetUniform(prog['scale'], scale)
GL.RenderTriangleStrip(vao, 4)
def initializeGL(self):
try:
GL.Init()
GL.Viewport(0, 0, context['width'], context['height'])
vert = GL.NewVertexShader('''
#version 430
in vec2 vert;
out vec3 frag_vert;
uniform float ratio;
uniform vec3 position;
uniform vec3 target;
void main() {
vec3 X = normalize(position - target);
vec3 Y = normalize(cross(X, vec3(0.0, 0.0, 1.0)));
vec3 Z = normalize(cross(X, Y));
mat3 M = mat3(X, Y, Z);
gl_Position = vec4(vert, 0.0, 1.0);
frag_vert = M * vec3(1.0, vert.x * ratio, vert.y);
}
''')
frag = GL.NewFragmentShader('''
#version 430
struct Face {
vec4 color;
vec3 T1, T2_T1, T3_T1, T2_T1_C_T3_T1, N;
};
in vec3 frag_vert;
out vec4 frag;
uniform vec3 position;
layout (binding = 1) buffer Input {
int faces;
Face face[];
};
void main() {
float factor = 1.0;
vec3 R1 = position;
vec3 R1_R2 = normalize(frag_vert);
vec3 color = vec3(0.0, 0.0, 0.0);
for (int h = 0; h < 5; ++h) {
int hit = 0;
float dist = -1;
for (int i = 0; i < faces; ++i) {
vec3 T1 = face[i].T1;
float f = dot(R1_R2, face[i].N);
if (f <= 0.0) continue;
float D = dot(R1_R2, face[i].T2_T1_C_T3_T1);
if (D == 0.0) continue;
vec3 R1_T1 = R1 - T1;
float u = dot(R1_T1, face[i].T2_T1_C_T3_T1) / D;
if (u < 0.0 || (dist > 0.0 && dist < u)) continue;
vec3 R1_R2_C_R1_T1 = cross(R1_R2, R1_T1);
float v = dot(face[i].T3_T1, R1_R2_C_R1_T1) / D;
if (v < 0.0 || v > 1.0) continue;
float w = -dot(face[i].T2_T1, R1_R2_C_R1_T1) / D;
if (w < 0.0 || w > 1.0) continue;
dist = u;
hit = i;
}
if (dist > 0) {
float g = dot(R1_R2, face[hit].N);
color += face[hit].color.rgb * factor * g;
R1 = R1 - R1_R2 * dist;
R1_R2 = reflect(R1_R2, face[hit].N);
factor *= 1.0 - face[hit].color.a;
if (factor < 0.01) break;
} else {
break;
}
}
frag = vec4(color, 1.0);
}
''')
prog = GL.NewProgram([vert, frag])
vbo = GL.NewVertexBuffer(struct.pack('8f', -1.0, -1.0, -1.0, 1.0, 1.0, -1.0, 1.0, 1.0))
context['vao'] = GL.NewVertexArray(prog, vbo, '2f', ['vert'])
ssbo = GL.NewStorageBuffer(open('../DataFiles/Raytrace-scene.dat', 'rb').read())
GL.UseStorageBuffer(ssbo, 1)
GL.SetUniform(prog['ratio'], context['width'] / context['height'])
GL.SetUniform(prog['position'], 0.7, 0.7, 0.0)
GL.SetUniform(prog['target'], 0, 0, 0)
except GL.Error as error:
print(error)
exit(1)
def on_draw():
GL.Clear(240, 240, 240)
GL.EnableOnly(GL.ENABLE_BLEND + GL.ENABLE_MULTISAMPLE)
GL.SetUniform(prog['rotation'], elapsed)
GL.RenderTriangles(vao, 3, instances=10)
