def glLibInternal_CausticMap (fbo, lightview,objpos,shader,causticgrid,causticgridscalar,particlesize,particlebrightness,eta,posmaps,normmaps,causticmap, filtering ):
if fbo != None:
fbo.enable([1])
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT)
glLoadIdentity()
View2D = glLibView2D(lightview.rect)
View2D.set_view()
glLibUseShader(shader)
for index in xrange(2,2*len(posmaps)+2,2):
shader.pass_texture(posmaps [index-2],index )
shader.pass_texture(normmaps[index-2],index+1)
shader.pass_texture(GLLIB_CAUSTIC_POINT,1)
shader.pass_float("eta",eta)
shader.pass_float("brightness",particlebrightness)
shader.pass_vec2("size",lightview.rect[2:])
shader.pass_float("grid_sc",causticgridscalar)
ptsize = glGetFloatv(GL_POINT_SIZE)
glPointSize(particlesize)
glEnable(GL_POINT_SPRITE)
glBlendFunc(GL_SRC_ALPHA, GL_ONE)
glDisable(GL_DEPTH_TEST)
causticgrid.draw()
glEnable(GL_DEPTH_TEST)
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
glDisable(GL_POINT_SPRITE)
glPointSize(ptsize)
glLibUseShader(None)
if fbo != None:
fbo.disable()
causticmap = fbo.get_texture(1)
else:
causticmap = glLibSceneToTexture(lightview.rect,causticmap,GLLIB_RGB,filtering)
## glLibScreenshot("caustics.png",rect=GLLIB_AUTO,type=GLLIB_RGB,framebuffer=0,overwrite=True)
return causticmap
def glLibInternal_CausticMap (fbo, light,lightview,objpos,objtransform,shader,causticgrid,causticgridscalar,particlesize,particlecolordata,posmaps,normmaps,causticmap, filtering, precision ):
lightpos = light.get_pos()
if fbo != None:
fbo.enable([1])
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT)
glLoadIdentity()
View2D = glLibView2D(lightview.rect)
View2D.set_view()
glLibUseShader(shader)
shader.pass_vec2("size",lightview.rect[2:])
shader.pass_float("grid_sc",causticgridscalar)
glLibPushView()
glLoadIdentity()
lightview.set_view()
gluLookAt(lightpos[0],lightpos[1],lightpos[2],objpos[0],objpos[1],objpos[2],0.0,1.0,0.0)
objtransform()
view_mat = glGetFloatv(GL_MODELVIEW_MATRIX)
glLibPopView()
shader.pass_mat4("modelmatrix",view_mat)
for index in range(2,2*len(posmaps)+2,2):
shader.pass_texture(posmaps [index-2],index )
shader.pass_texture(normmaps[index-2],index+1)
shader.pass_texture(GLLIB_CAUSTIC_POINT,1)
ptsize = glGetFloatv(GL_POINT_SIZE)
glPointSize(particlesize)
glEnable(GL_POINT_SPRITE)
glBlendFunc(GL_SRC_ALPHA, GL_ONE)
glDisable(GL_DEPTH_TEST)
for colordata in particlecolordata:
shader.pass_vec3("light_splat_color",colordata[0])
shader.pass_float("eta",colordata[1])
causticgrid.draw()
glEnable(GL_DEPTH_TEST)
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
glDisable(GL_POINT_SPRITE)
glPointSize(ptsize)
glLibUseShader(None)
if fbo != None:
fbo.disable()
causticmap = fbo.get_texture(1)
else:
causticmap = glLibSceneToTexture(lightview.rect,causticmap,GLLIB_RGB,filtering,precision=precision)
## glLibScreenshot("caustics.png",rect=GLLIB_AUTO,type=GLLIB_RGB,framebuffer=0,overwrite=True)
return causticmap
def __init__(self, n, precision=8):
#self.n differs from n by a maximum of sqrt(n)+1
self.size = [int(round(n**0.5))] * 2
self.n = self.size[0] * self.size[1]
#Shader to update particles
self.update_shader = glLibShader()
self.update_shader.use_prebuilt(GLLIB_PARTICLE_UPDATE)
## print self.update_shader.errors
#Shader to draw particles
self.draw_shader = glLibShader()
self.draw_shader.use_prebuilt(GLLIB_PARTICLE_DRAW)
## print self.draw_shader.errors
#Particles as VBO
self.particles = glLibGrid2D(self.size[0])
#Parameters
self.origin = [0.0, 0.0, 0.0]
self.initialspeed = [0.0, 0.0, 0.0]
self.forces = [0.0, 0.0, 0.0]
self.scale = [1, 1, 1]
self.density = 1.0
self.step = 1.0 / (self.n - 1)
self.density_constant = (1.0 / 64.0) * (4.0**log(self.size[0],
2.0)) * self.step
self.trans = [0.0, 0.0, 0.0]
self.fade = 1.0
self.jitter = [0.0, 0.0, 0.0]
self.psize = 100.0
# Edge handling
self.negx = 1.0
self.negy = 1.0
self.negz = 1.0
self.posx = 1.0
self.posy = 1.0
self.posz = 1.0
#Data Textures
self.pos_time_texture = None
self.velocity_texture = None
self.view_2D = glLibView2D((0, 0, self.size[0], self.size[1]))
self.point_texture = glLibTexture2D("glLib/fireparticle.png",
(0, 0, 8, 8), GLLIB_RGBA)
self.point_texture.edge(GLLIB_CLAMP)
self.precision = precision
self.framebuffer1 = glLibFBO(self.size)
self.framebuffer1.add_render_target(1,
type=GLLIB_RGBA,
precision=self.precision)
self.framebuffer1.add_render_target(2,
type=GLLIB_RGBA,
precision=self.precision)
self.framebuffer2 = glLibFBO(self.size)
self.framebuffer2.add_render_target(1,
type=GLLIB_RGBA,
precision=self.precision)
self.framebuffer2.add_render_target(2,
type=GLLIB_RGBA,
precision=self.precision)
self.pingpong = 1
xvalues = np.zeros(self.n) + 0.5
yvalues = np.zeros(self.n) + 0.5
zvalues = np.zeros(self.n) + 0.5
tvalues = np.arange(0.0, 1.0 + (1.0 / self.n),
1.0 / (self.n - 1.0)).astype(float)
zeros = np.zeros(self.n)
texarray = np.concatenate([xvalues, yvalues, zvalues,
tvalues]).reshape(4, -1).T
texarray = texarray.reshape((self.size[0], self.size[1], 4))
self.pos_time_texture = glLibTexture2D(
texarray, (0, 0, self.size[0], self.size[1]), GLLIB_RGBA)
vecs = np.random.standard_normal(size=(self.size[0], self.size[1], 3))
magnitudes = np.sqrt((vecs * vecs).sum(axis=-1))
uvecs = vecs / magnitudes[..., np.newaxis]
randlen = np.random.random((self.size[0], self.size[1]))
randvecs = uvecs * randlen[..., np.newaxis]
rgb = (((randvecs + 1.0) / 2.0) * 255.0).astype(int)
surface = pygame.surfarray.make_surface(rgb)
self.rand_tex = glLibTexture2D(surface,
(0, 0, self.size[0], self.size[1]),
GLLIB_RGB)
self.get_new = False
self.update()
self.get_new = True
def __init__(self,n,precision=8):
#self.n differs from n by a maximum of sqrt(n)+1
self.size = [int(round(n**0.5))]*2
self.n = self.size[0] * self.size[1]
#Shader to update particles
self.update_shader = glLibShader()
self.update_shader.use_prebuilt(GLLIB_PARTICLE_UPDATE)
## print self.update_shader.errors
#Shader to draw particles
self.draw_shader = glLibShader()
self.draw_shader.use_prebuilt(GLLIB_PARTICLE_DRAW)
## print self.draw_shader.errors
#Particles as VBO
self.particles = glLibGrid2D(self.size[0])
#Parameters
self.origin = [0.0,0.0,0.0]
self.initialspeed = [0.0,0.0,0.0]
self.forces = [0.0,0.0,0.0]
self.scale = [1,1,1]
self.density = 1.0
self.step = 1.0/(self.n-1)
self.density_constant = (1.0/64.0)*(4.0**log(self.size[0],2.0)) * self.step
self.trans = [0.0,0.0,0.0]
self.fade = 1.0
self.jitter = [0.0,0.0,0.0]
self.psize = 100.0
# Edge handling
self.negx = 1.0
self.negy = 1.0
self.negz = 1.0
self.posx = 1.0
self.posy = 1.0
self.posz = 1.0
#Data Textures
self.pos_time_texture = None
self.velocity_texture = None
self.view_2D = glLibView2D((0,0,self.size[0],self.size[1]))
self.point_texture = glLibTexture2D(os.path.join("glLib","fireparticle.png"),(0,0,8,8),GLLIB_RGBA)
self.point_texture.edge(GLLIB_CLAMP)
self.precision = precision
self.framebuffer1 = glLibFBO(self.size)
self.framebuffer1.add_render_target(1,type=GLLIB_RGBA,precision=self.precision)
self.framebuffer1.add_render_target(2,type=GLLIB_RGBA,precision=self.precision)
self.framebuffer2 = glLibFBO(self.size)
self.framebuffer2.add_render_target(1,type=GLLIB_RGBA,precision=self.precision)
self.framebuffer2.add_render_target(2,type=GLLIB_RGBA,precision=self.precision)
self.pingpong = 1
xvalues = np.zeros(self.n)+0.5
yvalues = np.zeros(self.n)+0.5
zvalues = np.zeros(self.n)+0.5
tvalues = np.arange(0.0, 1.0+(1.0/self.n), 1.0/(self.n-1.0)).astype(float)
zeros = np.zeros(self.n)
texarray = np.concatenate([xvalues,yvalues,zvalues,tvalues]).reshape(4,-1).T
texarray = texarray.reshape((self.size[0],self.size[1],4))
self.pos_time_texture = glLibTexture2D(texarray,(0,0,self.size[0],self.size[1]),GLLIB_RGBA)
vecs = np.random.standard_normal(size=(self.size[0],self.size[1],3))
magnitudes = np.sqrt((vecs*vecs).sum(axis=-1))
uvecs = vecs / magnitudes[...,np.newaxis]
randlen = np.random.random((self.size[0],self.size[1]))
randvecs = uvecs*randlen[...,np.newaxis]
rgb = ((randvecs+1.0)/2.0)*255.0
surface = pygame.surfarray.make_surface(rgb)
self.rand_tex = glLibTexture2D(surface,(0,0,self.size[0],self.size[1]),GLLIB_RGB)
self.get_new = False
self.update()
self.get_new = True