def makeFilterBuffer(srcbuffer, name, sort, prog):
blurBuffer=base.win.makeTextureBuffer(name, 512, 512)
blurBuffer.setSort(sort)
blurBuffer.setClearColor(Vec4(1,0,0,1))
blurCamera=base.makeCamera2d(blurBuffer)
blurScene=NodePath("new Scene")
blurCamera.node().setScene(blurScene)
shader = Shader.load(prog)
card = srcbuffer.getTextureCard()
card.reparentTo(blurScene)
card.setShader(shader)
return blurBuffer
def makeFilterBuffer(srcbuffer, name, sort, prog):
blurBuffer = base.win.makeTextureBuffer(name, 512, 512)
blurBuffer.setSort(sort)
blurBuffer.setClearColor(Vec4(1, 0, 0, 1))
blurCamera = base.makeCamera2d(blurBuffer)
blurScene = NodePath("new Scene")
blurCamera.node().setScene(blurScene)
shader = Shader.load(prog)
card = srcbuffer.getTextureCard()
card.reparentTo(blurScene)
card.setShader(shader)
return blurBuffer
def __init__(self):
base.disableMouse()
base.setBackgroundColor(0, 0, 0)
camera.setPos(0, -50, 0)
# Check video card capabilities.
if (base.win.getGsg().getSupportsBasicShaders() == 0):
addTitle(
"Glow Filter: Video driver reports that shaders are not supported."
)
return
# Post the instructions
self.title = addTitle("Panda3D: Tutorial - Glow Filter")
self.inst1 = addInstructions(0.95, "ESC: Quit")
self.inst2 = addInstructions(0.90, "Space: Toggle Glow Filter On/Off")
self.inst3 = addInstructions(0.85, "Enter: Toggle Running/Spinning")
self.inst4 = addInstructions(0.80,
"V: View the render-to-texture results")
#create the shader that will determime what parts of the scene will glow
glowShader=Shader.load(os.path.join(PANDA_SHADER_PATH, \
"samples/glow/glow_shader.sha"))
# load our model
self.tron = Actor()
self.tron.loadModel("models/samples/glow/tron")
self.tron.loadAnims({"running": "models/samples/glow/tron_anim"})
self.tron.reparentTo(render)
self.interval = self.tron.hprInterval(60, Point3(360, 0, 0))
self.interval.loop()
self.isRunning = False
#put some lighting on the tron model
dlight = DirectionalLight('dlight')
alight = AmbientLight('alight')
dlnp = render.attachNewNode(dlight)
alnp = render.attachNewNode(alight)
dlight.setColor(Vec4(1.0, 0.7, 0.2, 1))
alight.setColor(Vec4(0.2, 0.2, 0.2, 1))
dlnp.setHpr(0, -60, 0)
render.setLight(dlnp)
render.setLight(alnp)
# create the glow buffer. This buffer renders like a normal scene,
# except that only the glowing materials should show up nonblack.
glowBuffer = base.win.makeTextureBuffer("Glow scene", 512, 512)
glowBuffer.setSort(-3)
glowBuffer.setClearColor(Vec4(0, 0, 0, 1))
# We have to attach a camera to the glow buffer. The glow camera
# must have the same frustum as the main camera. As long as the aspect
# ratios match, the rest will take care of itself.
glowCamera = base.makeCamera(glowBuffer,
lens=base.cam.node().getLens())
# Tell the glow camera to use the glow shader
tempnode = NodePath(PandaNode("temp node"))
tempnode.setShader(glowShader)
glowCamera.node().setInitialState(tempnode.getState())
# set up the pipeline: from glow scene to blur x to blur y to main window.
blurXBuffer=makeFilterBuffer(glowBuffer, "Blur X", -2, \
os.path.join(PANDA_SHADER_PATH, "samples/glow/glow_xblur.sha"))
blurYBuffer=makeFilterBuffer(blurXBuffer, "Blur Y", -1, \
os.path.join(PANDA_SHADER_PATH, "samples/glow/glow_yblur.sha"))
self.finalcard = blurYBuffer.getTextureCard()
self.finalcard.reparentTo(render2d)
self.finalcard.setAttrib(ColorBlendAttrib.make(ColorBlendAttrib.MAdd))
# Panda contains a built-in viewer that lets you view the results of
# your render-to-texture operations. This code configures the viewer.
self.accept("v", base.bufferViewer.toggleEnable)
self.accept("V", base.bufferViewer.toggleEnable)
base.bufferViewer.setPosition("llcorner")
base.bufferViewer.setLayout("hline")
base.bufferViewer.setCardSize(0.652, 0)
# event handling
self.accept("space", self.toggleGlow)
self.accept("enter", self.toggleDisplay)
self.accept("escape", sys.exit, [0])
self.glowOn = True
def __init__(self):
base.disableMouse()
camera.setPos(0, -50, 0)
# Check video card capabilities.
if (base.win.getGsg().getSupportsBasicShaders() == 0):
addTitle(
"Toon Shader: Video driver reports that shaders are not supported."
)
return
# Post the instructions.
self.title = addTitle(
"Panda3D: Tutorial - Toon Shading with Normals-Based Inking")
self.inst1 = addInstructions(0.95, "ESC: Quit")
self.inst2 = addInstructions(
0.90, "Up/Down: Increase/Decrease Line Thickness")
self.inst3 = addInstructions(
0.85, "Left/Right: Decrease/Increase Line Darkness")
self.inst4 = addInstructions(0.80,
"V: View the render-to-texture results")
# This shader's job is to render the model with discrete lighting
# levels. The lighting calculations built into the shader assume
# a single nonattenuating point light.
tempnode = NodePath(PandaNode("temp node"))
tempnode.setShader(Shader.load(os.path.join(PANDA_SHADER_PATH, \
"samples/cartoon/cartoon_lighting.sha")))
base.cam.node().setInitialState(tempnode.getState())
# This is the object that represents the single "light", as far
# the shader is concerned. It's not a real Panda3D LightNode, but
# the shader doesn't care about that.
light = render.attachNewNode("light")
light.setPos(30, -50, 0)
# this call puts the light's nodepath into the render state.
# this enables the shader to access this light by name.
render.setShaderInput("light", light)
# The "normals buffer" will contain a picture of the model colorized
# so that the color of the model is a representation of the model's
# normal at that point.
normalsBuffer = base.win.makeTextureBuffer("normalsBuffer", 0, 0)
normalsBuffer.setClearColor(Vec4(0.5, 0.5, 0.5, 1))
self.normalsBuffer = normalsBuffer
normalsCamera = base.makeCamera(normalsBuffer,
lens=base.cam.node().getLens())
normalsCamera.node().setScene(render)
tempnode = NodePath(PandaNode("temp node"))
tempnode.setShader(Shader.load(os.path.join(PANDA_SHADER_PATH, \
"samples/cartoon/cartoon_normal.sha")))
normalsCamera.node().setInitialState(tempnode.getState())
#what we actually do to put edges on screen is apply them as a texture to
#a transparent screen-fitted card
drawnScene = normalsBuffer.getTextureCard()
drawnScene.setTransparency(1)
drawnScene.setColor(1, 1, 1, 0)
drawnScene.reparentTo(render2d)
self.drawnScene = drawnScene
# this shader accepts, as input, the picture from the normals buffer.
# it compares each adjacent pixel, looking for discontinuities.
# wherever a discontinuity exists, it emits black ink.
self.separation = 0.001
self.cutoff = 0.3
inkGen=Shader.load(os.path.join(PANDA_SHADER_PATH, \
"samples/cartoon/cartoon_ink.sha"))
drawnScene.setShader(inkGen)
drawnScene.setShaderInput("separation",
Vec4(self.separation, 0, self.separation, 0))
drawnScene.setShaderInput(
"cutoff", Vec4(self.cutoff, self.cutoff, self.cutoff, self.cutoff))
# Panda contains a built-in viewer that lets you view the results of
# your render-to-texture operations. This code configures the viewer.
self.accept("v", base.bufferViewer.toggleEnable)
self.accept("V", base.bufferViewer.toggleEnable)
base.bufferViewer.setPosition("llcorner")
# Load a dragon model and animate it.
self.character = Actor()
self.character.loadModel('models/samples/cartoon/nik_dragon')
self.character.reparentTo(render)
self.character.loadAnims({'win': 'models/samples/cartoon/nik_dragon'})
self.character.loop('win')
self.character.hprInterval(15, Point3(360, 0, 0)).loop()
# these allow you to change cartooning parameters in realtime
self.accept("escape", sys.exit, [0])
self.accept("arrow_up", self.increaseSeparation)
self.accept("arrow_down", self.decreaseSeparation)
self.accept("arrow_left", self.increaseCutoff)
self.accept("arrow_right", self.decreaseCutoff)
def __init__(self):
# Preliminary capabilities check.
if (base.win.getGsg().getSupportsBasicShaders()==0):
self.t=addTitle("Firefly Demo: Video driver reports that shaders are not supported.")
return
if (base.win.getGsg().getSupportsDepthTexture()==0):
self.t=addTitle("Firefly Demo: Video driver reports that depth textures are not supported.")
return
# This algorithm uses two offscreen buffers, one of which has
# an auxiliary bitplane, and the offscreen buffers share a single
# depth buffer. This is a heck of a complicated buffer setup.
self.modelbuffer = self.makeFBO("model buffer",1)
self.lightbuffer = self.makeFBO("light buffer",0)
# Creation of a high-powered buffer can fail, if the graphics card
# doesn't support the necessary OpenGL extensions.
if (self.modelbuffer == None) or (self.lightbuffer == None):
self.t=addTitle("Toon Shader: Video driver does not support multiple render targets")
return
# Create four render textures: depth, normal, albedo, and final.
# attach them to the various bitplanes of the offscreen buffers.
self.texDepth = Texture()
self.texDepth.setFormat(Texture.FDepthStencil)
self.texAlbedo = Texture()
self.texNormal = Texture()
self.texFinal = Texture()
self.modelbuffer.addRenderTexture(self.texDepth, GraphicsOutput.RTMBindOrCopy, GraphicsOutput.RTPDepthStencil)
self.modelbuffer.addRenderTexture(self.texAlbedo, GraphicsOutput.RTMBindOrCopy, GraphicsOutput.RTPColor)
self.modelbuffer.addRenderTexture(self.texNormal, GraphicsOutput.RTMBindOrCopy, GraphicsOutput.RTPAuxRgba0)
self.lightbuffer.addRenderTexture(self.texFinal, GraphicsOutput.RTMBindOrCopy, GraphicsOutput.RTPColor)
# Set the near and far clipping planes.
base.cam.node().getLens().setNear(50.0)
base.cam.node().getLens().setFar(500.0)
lens = base.cam.node().getLens()
# This algorithm uses three cameras: one to render the models into the
# model buffer, one to render the lights into the light buffer, and
# one to render "plain" stuff (non-deferred shaded) stuff into the light
# buffer. Each camera has a bitmask to identify it.
self.modelMask = 1
self.lightMask = 2
self.plainMask = 4
self.modelcam=base.makeCamera(self.modelbuffer, lens=lens, scene=render, mask=self.modelMask)
self.lightcam=base.makeCamera(self.lightbuffer, lens=lens, scene=render, mask=self.lightMask)
self.plaincam=base.makeCamera(self.lightbuffer, lens=lens, scene=render, mask=self.plainMask)
# Panda's main camera is not used.
base.cam.node().setActive(0)
# Take explicit control over the order in which the three
# buffers are rendered.
self.modelbuffer.setSort(1)
self.lightbuffer.setSort(2)
base.win.setSort(3)
# Within the light buffer, control the order of the two cams.
self.lightcam.node().getDisplayRegion(0).setSort(1)
self.plaincam.node().getDisplayRegion(0).setSort(2)
# By default, panda usually clears the screen before every
# camera and before every window. Tell it not to do that.
# Then, tell it specifically when to clear and what to clear.
self.modelcam.node().getDisplayRegion(0).disableClears()
self.lightcam.node().getDisplayRegion(0).disableClears()
self.plaincam.node().getDisplayRegion(0).disableClears()
base.cam.node().getDisplayRegion(0).disableClears()
base.cam2d.node().getDisplayRegion(0).disableClears()
self.modelbuffer.disableClears()
base.win.disableClears()
self.modelbuffer.setClearColorActive(1)
self.modelbuffer.setClearDepthActive(1)
self.lightbuffer.setClearColorActive(1)
self.lightbuffer.setClearColor(Vec4(0,0,0,1))
# Miscellaneous stuff.
base.disableMouse()
base.camera.setPos(-9.112,-211.077,46.951)
base.camera.setHpr(0, -7.5, 2.4)
base.setBackgroundColor(Vec4(0,0,0,0))
random.seed()
# Calculate the projection parameters for the final shader.
# The math here is too complex to explain in an inline comment,
# I've put in a full explanation into the HTML intro.
proj = base.cam.node().getLens().getProjectionMat()
proj_x = 0.5 * proj.getCell(3,2) / proj.getCell(0,0)
proj_y = 0.5 * proj.getCell(3,2)
proj_z = 0.5 * proj.getCell(3,2) / proj.getCell(2,1)
proj_w = -0.5 - 0.5*proj.getCell(1,2)
# Configure the render state of the model camera.
tempnode = NodePath(PandaNode("temp node"))
tempnode.setAttrib(AlphaTestAttrib.make(RenderAttrib.MGreaterEqual, 0.5))
tempnode.setShader(Shader.load(os.path.join(PANDA_SHADER_PATH, \
"samples/fireflies/fireflies_model.sha")))
tempnode.setAttrib(DepthTestAttrib.make(RenderAttrib.MLessEqual))
self.modelcam.node().setInitialState(tempnode.getState())
# Configure the render state of the light camera.
tempnode = NodePath(PandaNode("temp node"))
tempnode.setShader(Shader.load(os.path.join(PANDA_SHADER_PATH, \
"samples/fireflies/fireflies_lighting.sha")))
tempnode.setShaderInput("texnormal",self.texNormal)
tempnode.setShaderInput("texalbedo",self.texAlbedo)
tempnode.setShaderInput("texdepth",self.texDepth)
tempnode.setShaderInput("proj",Vec4(proj_x,proj_y,proj_z,proj_w))
tempnode.setAttrib(ColorBlendAttrib.make(ColorBlendAttrib.MAdd, ColorBlendAttrib.OOne, ColorBlendAttrib.OOne))
tempnode.setAttrib(CullFaceAttrib.make(CullFaceAttrib.MCullCounterClockwise))
# The next line causes problems on Linux.
#tempnode.setAttrib(DepthTestAttrib.make(RenderAttrib.MGreaterEqual))
tempnode.setAttrib(DepthWriteAttrib.make(DepthWriteAttrib.MOff))
self.lightcam.node().setInitialState(tempnode.getState())
# Configure the render state of the plain camera.
rs = RenderState.makeEmpty()
self.plaincam.node().setInitialState(rs)
# Clear any render attribs on the root node. This is necessary
# because by default, panda assigns some attribs to the root
# node. These default attribs will override the
# carefully-configured render attribs that we just attached
# to the cameras. The simplest solution is to just clear
# them all out.
render.setState(RenderState.makeEmpty())
# My artist created a model in which some of the polygons
# don't have textures. This confuses the shader I wrote.
# This little hack guarantees that everything has a texture.
white = loader.loadTexture("models/samples/fireflies/white.jpg")
render.setTexture(white,0)
# Create two subroots, to help speed cull traversal.
self.lightroot = NodePath(PandaNode("lightroot"))
self.lightroot.reparentTo(render)
self.modelroot = NodePath(PandaNode("modelroot"))
self.modelroot.reparentTo(render)
self.lightroot.hide(BitMask32(self.modelMask))
self.modelroot.hide(BitMask32(self.lightMask))
self.modelroot.hide(BitMask32(self.plainMask))
# Load the model of a forest. Make it visible to the model camera.
self.forest=NodePath(PandaNode("Forest Root"))
self.forest.reparentTo(render)
loader.loadModel( \
"models/samples/fireflies/background").reparentTo(self.forest)
loader.loadModel( \
"models/samples/fireflies/foliage01").reparentTo(self.forest)
loader.loadModel( \
"models/samples/fireflies/foliage02").reparentTo(self.forest)
loader.loadModel( \
"models/samples/fireflies/foliage03").reparentTo(self.forest)
loader.loadModel( \
"models/samples/fireflies/foliage04").reparentTo(self.forest)
loader.loadModel( \
"models/samples/fireflies/foliage05").reparentTo(self.forest)
loader.loadModel( \
"models/samples/fireflies/foliage06").reparentTo(self.forest)
loader.loadModel( \
"models/samples/fireflies/foliage07").reparentTo(self.forest)
loader.loadModel( \
"models/samples/fireflies/foliage08").reparentTo(self.forest)
loader.loadModel( \
"models/samples/fireflies/foliage09").reparentTo(self.forest)
self.forest.hide(BitMask32(self.lightMask | self.plainMask))
# Cause the final results to be rendered into the main window on a card.
cm = CardMaker("card")
cm.setFrameFullscreenQuad()
self.card = render2d.attachNewNode(cm.generate())
self.card.setTexture(self.texFinal)
# Post the instructions.
self.title = addTitle("Panda3D: Tutorial - Fireflies using Deferred Shading")
self.inst1 = addInstructions(0.95,"ESC: Quit")
self.inst2 = addInstructions(0.90,"Up/Down: More / Fewer Fireflies (Count: unknown)")
self.inst3 = addInstructions(0.85,"Right/Left: Bigger / Smaller Fireflies (Radius: unknown)")
self.inst4 = addInstructions(0.80,"V: View the render-to-texture results")
# Panda contains a built-in viewer that lets you view the results of
# your render-to-texture operations. This code configures the viewer.
base.bufferViewer.setPosition("llcorner")
base.bufferViewer.setCardSize(0,0.40)
base.bufferViewer.setLayout("vline")
self.toggleCards()
self.toggleCards()
# Firefly parameters
self.fireflies = []
self.sequences = []
self.scaleseqs = []
self.glowspheres = []
self.fireflysize = 1.0
self.spheremodel = loader.loadModel("models/misc/sphere.flt")
self.setFireflySize(25.0)
while (len(self.fireflies)<5): self.addFirefly()
self.updateReadout()
# these allow you to change parameters in realtime
self.accept("escape", sys.exit, [0])
self.accept("arrow_up", self.incFireflyCount, [1.1111111])
self.accept("arrow_down", self.decFireflyCount, [0.9000000])
self.accept("arrow_right", self.setFireflySize, [1.1111111])
self.accept("arrow_left", self.setFireflySize, [0.9000000])
self.accept("v", self.toggleCards)
self.accept("V", self.toggleCards)
self.nextadd = 0
taskMgr.add(self.spawnTask, "spawner")
def __init__(self):
base.disableMouse()
camera.setPos(0, -50, 0)
# Check video card capabilities.
if (base.win.getGsg().getSupportsBasicShaders() == 0):
addTitle("Toon Shader: Video driver reports that shaders are not supported.")
return
# Post the instructions.
self.title = addTitle("Panda3D: Tutorial - Toon Shading with Normals-Based Inking")
self.inst1 = addInstructions(0.95,"ESC: Quit")
self.inst2 = addInstructions(0.90,"Up/Down: Increase/Decrease Line Thickness")
self.inst3 = addInstructions(0.85,"Left/Right: Decrease/Increase Line Darkness")
self.inst4 = addInstructions(0.80,"V: View the render-to-texture results")
# This shader's job is to render the model with discrete lighting
# levels. The lighting calculations built into the shader assume
# a single nonattenuating point light.
tempnode = NodePath(PandaNode("temp node"))
tempnode.setShader(Shader.load(os.path.join(PANDA_SHADER_PATH, \
"samples/cartoon/cartoon_lighting.sha")))
base.cam.node().setInitialState(tempnode.getState())
# This is the object that represents the single "light", as far
# the shader is concerned. It's not a real Panda3D LightNode, but
# the shader doesn't care about that.
light = render.attachNewNode("light")
light.setPos(30,-50,0)
# this call puts the light's nodepath into the render state.
# this enables the shader to access this light by name.
render.setShaderInput("light", light)
# The "normals buffer" will contain a picture of the model colorized
# so that the color of the model is a representation of the model's
# normal at that point.
normalsBuffer=base.win.makeTextureBuffer("normalsBuffer", 0, 0)
normalsBuffer.setClearColor(Vec4(0.5,0.5,0.5,1))
self.normalsBuffer=normalsBuffer
normalsCamera=base.makeCamera(normalsBuffer, lens=base.cam.node().getLens())
normalsCamera.node().setScene(render)
tempnode = NodePath(PandaNode("temp node"))
tempnode.setShader(Shader.load(os.path.join(PANDA_SHADER_PATH, \
"samples/cartoon/cartoon_normal.sha")))
normalsCamera.node().setInitialState(tempnode.getState())
#what we actually do to put edges on screen is apply them as a texture to
#a transparent screen-fitted card
drawnScene=normalsBuffer.getTextureCard()
drawnScene.setTransparency(1)
drawnScene.setColor(1,1,1,0)
drawnScene.reparentTo(render2d)
self.drawnScene = drawnScene
# this shader accepts, as input, the picture from the normals buffer.
# it compares each adjacent pixel, looking for discontinuities.
# wherever a discontinuity exists, it emits black ink.
self.separation = 0.001
self.cutoff = 0.3
inkGen=Shader.load(os.path.join(PANDA_SHADER_PATH, \
"samples/cartoon/cartoon_ink.sha"))
drawnScene.setShader(inkGen)
drawnScene.setShaderInput("separation", Vec4(self.separation,0,self.separation,0));
drawnScene.setShaderInput("cutoff", Vec4(self.cutoff,self.cutoff,self.cutoff,self.cutoff));
# Panda contains a built-in viewer that lets you view the results of
# your render-to-texture operations. This code configures the viewer.
self.accept("v", base.bufferViewer.toggleEnable)
self.accept("V", base.bufferViewer.toggleEnable)
base.bufferViewer.setPosition("llcorner")
# Load a dragon model and animate it.
self.character=Actor()
self.character.loadModel('models/samples/cartoon/nik_dragon')
self.character.reparentTo(render)
self.character.loadAnims({'win': 'models/samples/cartoon/nik_dragon'})
self.character.loop('win')
self.character.hprInterval(15, Point3(360, 0,0)).loop()
# these allow you to change cartooning parameters in realtime
self.accept("escape", sys.exit, [0])
self.accept("arrow_up", self.increaseSeparation)
self.accept("arrow_down", self.decreaseSeparation)
self.accept("arrow_left", self.increaseCutoff)
self.accept("arrow_right", self.decreaseCutoff)
def reconfigure(self, fullrebuild, changed):
""" Reconfigure is called whenever any configuration change is made. """
configuration = self.configuration
if (fullrebuild):
self.cleanup()
if (len(configuration) == 0):
return
auxbits = 0
needtex = {}
needtex["color"] = True
if (configuration.has_key("CartoonInk")):
needtex["aux"] = True
auxbits |= AuxBitplaneAttrib.ABOAuxNormal
if (configuration.has_key("Bloom")):
needtex["bloom0"] = True
needtex["bloom1"] = True
needtex["bloom2"] = True
needtex["bloom3"] = True
auxbits |= AuxBitplaneAttrib.ABOGlow
if (configuration.has_key("ViewGlow")):
auxbits |= AuxBitplaneAttrib.ABOGlow
for tex in needtex:
self.textures[tex] = Texture("scene-" + tex)
self.textures[tex].setWrapU(Texture.WMClamp)
self.textures[tex].setWrapV(Texture.WMClamp)
needtexpix = True
self.finalQuad = self.manager.renderSceneInto(
textures=self.textures, auxbits=auxbits)
if (self.finalQuad == None):
self.cleanup()
return False
if (configuration.has_key("Bloom")):
bloomconf = configuration["Bloom"]
bloom0 = self.textures["bloom0"]
bloom1 = self.textures["bloom1"]
bloom2 = self.textures["bloom2"]
bloom3 = self.textures["bloom3"]
if (bloomconf.size == "large"):
scale = 8
downsampler = "filter_down4.sha"
elif (bloomconf.size == "medium"):
scale = 4
downsampler = "filter_copy.sha"
else:
scale = 2
downsampler = "filter_copy.sha"
self.bloom.append(
self.manager.renderQuadInto(colortex=bloom0,
div=2,
align=scale))
self.bloom.append(
self.manager.renderQuadInto(colortex=bloom1,
div=scale,
align=scale))
self.bloom.append(
self.manager.renderQuadInto(colortex=bloom2,
div=scale,
align=scale))
self.bloom.append(
self.manager.renderQuadInto(colortex=bloom3,
div=scale,
align=scale))
self.bloom[0].setShaderInput("src", self.textures["color"])
self.bloom[0].setShader(self.loadShader("filter_bloomi.sha"))
self.bloom[1].setShaderInput("src", bloom0)
self.bloom[1].setShader(self.loadShader(downsampler))
self.bloom[2].setShaderInput("src", bloom1)
self.bloom[2].setShader(self.loadShader("filter_bloomx.sha"))
self.bloom[3].setShaderInput("src", bloom2)
self.bloom[3].setShader(self.loadShader("filter_bloomy.sha"))
text = "//Cg\n"
text += "void vshader(float4 vtx_position : POSITION,\n"
text += " out float4 l_position : POSITION,\n"
text += " uniform float4 texpad_txcolor,\n"
text += " uniform float4 texpix_txcolor,\n"
text += " out float4 l_texcoordC : TEXCOORD0,\n"
if (configuration.has_key("CartoonInk")):
text += " uniform float4 texpad_txaux,\n"
text += " uniform float4 texpix_txaux,\n"
text += " out float4 l_texcoordN : TEXCOORD1,\n"
if (configuration.has_key("Bloom")):
text += " uniform float4 texpad_txbloom3,\n"
text += " out float4 l_texcoordB : TEXCOORD2,\n"
text += " uniform float4x4 mat_modelproj)\n"
text += "{\n"
text += " l_position=mul(mat_modelproj, vtx_position);\n"
text += " l_texcoordC=(vtx_position.xzxz * texpad_txcolor) + texpad_txcolor;\n"
if (configuration.has_key("CartoonInk")):
text += " l_texcoordN=(vtx_position.xzxz * texpad_txaux) + texpad_txaux;\n"
if (configuration.has_key("Bloom")):
text += " l_texcoordB=(vtx_position.xzxz * texpad_txbloom3) + texpad_txbloom3;\n"
if (configuration.has_key("HalfPixelShift")):
text += " l_texcoordC+=texpix_txcolor*0.5;\n"
if (configuration.has_key("CartoonInk")):
text += " l_texcoordN+=texpix_txaux*0.5;\n"
text += "}\n"
text += "void fshader(\n"
text += "float4 l_texcoordC : TEXCOORD0,\n"
text += "uniform float4 texpix_txcolor,\n"
if (configuration.has_key("CartoonInk")):
text += "float4 l_texcoordN : TEXCOORD1,\n"
text += "uniform float4 texpix_txaux,\n"
if (configuration.has_key("Bloom")):
text += "float4 l_texcoordB : TEXCOORD2,\n"
for key in self.textures:
text += "uniform sampler2D k_tx" + key + ",\n"
if (configuration.has_key("CartoonInk")):
text += "uniform float4 k_cartoonseparation,\n"
if (configuration.has_key("VolumetricLighting")):
text += "uniform float4 k_casterpos,\n"
text += "uniform float4 k_vlparams,\n"
text += "out float4 o_color : COLOR)\n"
text += "{\n"
text += " o_color = tex2D(k_txcolor, l_texcoordC.xy);\n"
if (configuration.has_key("CartoonInk")):
text += CARTOON_BODY
if (configuration.has_key("Bloom")):
text += "o_color = saturate(o_color);\n"
text += "float4 bloom = 0.5*tex2D(k_txbloom3, l_texcoordB.xy);\n"
text += "o_color = 1-((1-bloom)*(1-o_color));\n"
if (configuration.has_key("ViewGlow")):
text += "o_color.r = o_color.a;\n"
if (configuration.has_key("VolumetricLighting")):
text += "float decay = 1.0f;\n"
text += "float2 curcoord = l_texcoordC.xy;\n"
text += "float2 lightdir = curcoord - k_casterpos.xy;\n"
text += "lightdir *= k_vlparams.y;\n"
text += "half4 sample = tex2D(k_txcolor, curcoord);\n"
text += "float3 vlcolor = sample.rgb * sample.a;\n"
text += "for (int i = 0; i < k_vlparams.x; i++) {\n"
text += " curcoord -= lightdir;\n"
text += " sample = tex2D(k_txcolor, curcoord);\n"
text += " sample *= sample.a * decay;//*weight\n"
text += " vlcolor += sample.rgb;\n"
text += " decay *= k_vlparams.z;\n"
text += "}\n"
text += "o_color += float4(vlcolor * k_vlparams.w, 1);\n"
if (configuration.has_key("Inverted")):
text += "o_color = float4(1, 1, 1, 1) - o_color;\n"
text += "}\n"
self.finalQuad.setShader(Shader.make(text))
for tex in self.textures:
self.finalQuad.setShaderInput("tx" + tex, self.textures[tex])
if (changed == "CartoonInk") or fullrebuild:
if (configuration.has_key("CartoonInk")):
separation = configuration["CartoonInk"]
self.finalQuad.setShaderInput(
"cartoonseparation", Vec4(separation, 0, separation, 0))
if (changed == "Bloom") or fullrebuild:
if (configuration.has_key("Bloom")):
bloomconf = configuration["Bloom"]
intensity = bloomconf.intensity * 3.0
self.bloom[0].setShaderInput("blend", bloomconf.blendx,
bloomconf.blendy,
bloomconf.blendz,
bloomconf.blendw * 2.0)
self.bloom[0].setShaderInput(
"trigger", bloomconf.mintrigger,
1.0 / (bloomconf.maxtrigger - bloomconf.mintrigger), 0.0,
0.0)
self.bloom[0].setShaderInput("desat", bloomconf.desat)
self.bloom[3].setShaderInput("intensity", intensity, intensity,
intensity, intensity)
if (changed == "VolumetricLighting") or fullrebuild:
if (configuration.has_key("VolumetricLighting")):
config = configuration["VolumetricLighting"]
tcparam = config.density / float(config.numsamples)
self.finalQuad.setShaderInput("vlparams", config.numsamples,
tcparam, config.decay,
config.exposure)
self.update()
return True
def loadShader(self, name):
fn = os.path.join(PANDA_SHADER_PATH, name)
fn = Filename.fromOsSpecific(fn)
fn.makeTrueCase()
return Shader.load(fn)
def __init__(self):
base.disableMouse()
base.setBackgroundColor(0,0,0)
camera.setPos(0,-50,0)
# Check video card capabilities.
if (base.win.getGsg().getSupportsBasicShaders() == 0):
addTitle("Glow Filter: Video driver reports that shaders are not supported.")
return
# Post the instructions
self.title = addTitle("Panda3D: Tutorial - Glow Filter")
self.inst1 = addInstructions(0.95,"ESC: Quit")
self.inst2 = addInstructions(0.90,"Space: Toggle Glow Filter On/Off")
self.inst3 = addInstructions(0.85,"Enter: Toggle Running/Spinning")
self.inst4 = addInstructions(0.80,"V: View the render-to-texture results")
#create the shader that will determime what parts of the scene will glow
glowShader=Shader.load(os.path.join(PANDA_SHADER_PATH, \
"samples/glow/glow_shader.sha"))
# load our model
self.tron=Actor()
self.tron.loadModel("models/samples/glow/tron")
self.tron.loadAnims({"running":"models/samples/glow/tron_anim"})
self.tron.reparentTo(render)
self.interval = self.tron.hprInterval(60,Point3(360,0,0))
self.interval.loop()
self.isRunning=False
#put some lighting on the tron model
dlight = DirectionalLight('dlight')
alight = AmbientLight('alight')
dlnp = render.attachNewNode(dlight)
alnp = render.attachNewNode(alight)
dlight.setColor(Vec4(1.0, 0.7, 0.2, 1))
alight.setColor(Vec4(0.2, 0.2, 0.2, 1))
dlnp.setHpr(0, -60, 0)
render.setLight(dlnp)
render.setLight(alnp)
# create the glow buffer. This buffer renders like a normal scene,
# except that only the glowing materials should show up nonblack.
glowBuffer=base.win.makeTextureBuffer("Glow scene", 512, 512)
glowBuffer.setSort(-3)
glowBuffer.setClearColor(Vec4(0,0,0,1))
# We have to attach a camera to the glow buffer. The glow camera
# must have the same frustum as the main camera. As long as the aspect
# ratios match, the rest will take care of itself.
glowCamera=base.makeCamera(glowBuffer, lens=base.cam.node().getLens())
# Tell the glow camera to use the glow shader
tempnode = NodePath(PandaNode("temp node"))
tempnode.setShader(glowShader)
glowCamera.node().setInitialState(tempnode.getState())
# set up the pipeline: from glow scene to blur x to blur y to main window.
blurXBuffer=makeFilterBuffer(glowBuffer, "Blur X", -2, \
os.path.join(PANDA_SHADER_PATH, "samples/glow/glow_xblur.sha"))
blurYBuffer=makeFilterBuffer(blurXBuffer, "Blur Y", -1, \
os.path.join(PANDA_SHADER_PATH, "samples/glow/glow_yblur.sha"))
self.finalcard = blurYBuffer.getTextureCard()
self.finalcard.reparentTo(render2d)
self.finalcard.setAttrib(ColorBlendAttrib.make(ColorBlendAttrib.MAdd))
# Panda contains a built-in viewer that lets you view the results of
# your render-to-texture operations. This code configures the viewer.
self.accept("v", base.bufferViewer.toggleEnable)
self.accept("V", base.bufferViewer.toggleEnable)
base.bufferViewer.setPosition("llcorner")
base.bufferViewer.setLayout("hline")
base.bufferViewer.setCardSize(0.652,0)
# event handling
self.accept("space", self.toggleGlow)
self.accept("enter", self.toggleDisplay)
self.accept("escape", sys.exit, [0])
self.glowOn=True;
def __init__(self):
# Preliminary capabilities check.
if (base.win.getGsg().getSupportsBasicShaders() == 0):
self.t = addTitle(
"Firefly Demo: Video driver reports that shaders are not supported."
)
return
if (base.win.getGsg().getSupportsDepthTexture() == 0):
self.t = addTitle(
"Firefly Demo: Video driver reports that depth textures are not supported."
)
return
# This algorithm uses two offscreen buffers, one of which has
# an auxiliary bitplane, and the offscreen buffers share a single
# depth buffer. This is a heck of a complicated buffer setup.
self.modelbuffer = self.makeFBO("model buffer", 1)
self.lightbuffer = self.makeFBO("light buffer", 0)
# Creation of a high-powered buffer can fail, if the graphics card
# doesn't support the necessary OpenGL extensions.
if (self.modelbuffer == None) or (self.lightbuffer == None):
self.t = addTitle(
"Toon Shader: Video driver does not support multiple render targets"
)
return
# Create four render textures: depth, normal, albedo, and final.
# attach them to the various bitplanes of the offscreen buffers.
self.texDepth = Texture()
self.texDepth.setFormat(Texture.FDepthStencil)
self.texAlbedo = Texture()
self.texNormal = Texture()
self.texFinal = Texture()
self.modelbuffer.addRenderTexture(self.texDepth,
GraphicsOutput.RTMBindOrCopy,
GraphicsOutput.RTPDepthStencil)
self.modelbuffer.addRenderTexture(self.texAlbedo,
GraphicsOutput.RTMBindOrCopy,
GraphicsOutput.RTPColor)
self.modelbuffer.addRenderTexture(self.texNormal,
GraphicsOutput.RTMBindOrCopy,
GraphicsOutput.RTPAuxRgba0)
self.lightbuffer.addRenderTexture(self.texFinal,
GraphicsOutput.RTMBindOrCopy,
GraphicsOutput.RTPColor)
# Set the near and far clipping planes.
base.cam.node().getLens().setNear(50.0)
base.cam.node().getLens().setFar(500.0)
lens = base.cam.node().getLens()
# This algorithm uses three cameras: one to render the models into the
# model buffer, one to render the lights into the light buffer, and
# one to render "plain" stuff (non-deferred shaded) stuff into the light
# buffer. Each camera has a bitmask to identify it.
self.modelMask = 1
self.lightMask = 2
self.plainMask = 4
self.modelcam = base.makeCamera(self.modelbuffer,
lens=lens,
scene=render,
mask=self.modelMask)
self.lightcam = base.makeCamera(self.lightbuffer,
lens=lens,
scene=render,
mask=self.lightMask)
self.plaincam = base.makeCamera(self.lightbuffer,
lens=lens,
scene=render,
mask=self.plainMask)
# Panda's main camera is not used.
base.cam.node().setActive(0)
# Take explicit control over the order in which the three
# buffers are rendered.
self.modelbuffer.setSort(1)
self.lightbuffer.setSort(2)
base.win.setSort(3)
# Within the light buffer, control the order of the two cams.
self.lightcam.node().getDisplayRegion(0).setSort(1)
self.plaincam.node().getDisplayRegion(0).setSort(2)
# By default, panda usually clears the screen before every
# camera and before every window. Tell it not to do that.
# Then, tell it specifically when to clear and what to clear.
self.modelcam.node().getDisplayRegion(0).disableClears()
self.lightcam.node().getDisplayRegion(0).disableClears()
self.plaincam.node().getDisplayRegion(0).disableClears()
base.cam.node().getDisplayRegion(0).disableClears()
base.cam2d.node().getDisplayRegion(0).disableClears()
self.modelbuffer.disableClears()
base.win.disableClears()
self.modelbuffer.setClearColorActive(1)
self.modelbuffer.setClearDepthActive(1)
self.lightbuffer.setClearColorActive(1)
self.lightbuffer.setClearColor(Vec4(0, 0, 0, 1))
# Miscellaneous stuff.
base.disableMouse()
base.camera.setPos(-9.112, -211.077, 46.951)
base.camera.setHpr(0, -7.5, 2.4)
base.setBackgroundColor(Vec4(0, 0, 0, 0))
random.seed()
# Calculate the projection parameters for the final shader.
# The math here is too complex to explain in an inline comment,
# I've put in a full explanation into the HTML intro.
proj = base.cam.node().getLens().getProjectionMat()
proj_x = 0.5 * proj.getCell(3, 2) / proj.getCell(0, 0)
proj_y = 0.5 * proj.getCell(3, 2)
proj_z = 0.5 * proj.getCell(3, 2) / proj.getCell(2, 1)
proj_w = -0.5 - 0.5 * proj.getCell(1, 2)
# Configure the render state of the model camera.
tempnode = NodePath(PandaNode("temp node"))
tempnode.setAttrib(
AlphaTestAttrib.make(RenderAttrib.MGreaterEqual, 0.5))
tempnode.setShader(Shader.load(os.path.join(PANDA_SHADER_PATH, \
"samples/fireflies/fireflies_model.sha")))
tempnode.setAttrib(DepthTestAttrib.make(RenderAttrib.MLessEqual))
self.modelcam.node().setInitialState(tempnode.getState())
# Configure the render state of the light camera.
tempnode = NodePath(PandaNode("temp node"))
tempnode.setShader(Shader.load(os.path.join(PANDA_SHADER_PATH, \
"samples/fireflies/fireflies_lighting.sha")))
tempnode.setShaderInput("texnormal", self.texNormal)
tempnode.setShaderInput("texalbedo", self.texAlbedo)
tempnode.setShaderInput("texdepth", self.texDepth)
tempnode.setShaderInput("proj", Vec4(proj_x, proj_y, proj_z, proj_w))
tempnode.setAttrib(
ColorBlendAttrib.make(ColorBlendAttrib.MAdd, ColorBlendAttrib.OOne,
ColorBlendAttrib.OOne))
tempnode.setAttrib(
CullFaceAttrib.make(CullFaceAttrib.MCullCounterClockwise))
# The next line causes problems on Linux.
#tempnode.setAttrib(DepthTestAttrib.make(RenderAttrib.MGreaterEqual))
tempnode.setAttrib(DepthWriteAttrib.make(DepthWriteAttrib.MOff))
self.lightcam.node().setInitialState(tempnode.getState())
# Configure the render state of the plain camera.
rs = RenderState.makeEmpty()
self.plaincam.node().setInitialState(rs)
# Clear any render attribs on the root node. This is necessary
# because by default, panda assigns some attribs to the root
# node. These default attribs will override the
# carefully-configured render attribs that we just attached
# to the cameras. The simplest solution is to just clear
# them all out.
render.setState(RenderState.makeEmpty())
# My artist created a model in which some of the polygons
# don't have textures. This confuses the shader I wrote.
# This little hack guarantees that everything has a texture.
white = loader.loadTexture("models/samples/fireflies/white.jpg")
render.setTexture(white, 0)
# Create two subroots, to help speed cull traversal.
self.lightroot = NodePath(PandaNode("lightroot"))
self.lightroot.reparentTo(render)
self.modelroot = NodePath(PandaNode("modelroot"))
self.modelroot.reparentTo(render)
self.lightroot.hide(BitMask32(self.modelMask))
self.modelroot.hide(BitMask32(self.lightMask))
self.modelroot.hide(BitMask32(self.plainMask))
# Load the model of a forest. Make it visible to the model camera.
self.forest = NodePath(PandaNode("Forest Root"))
self.forest.reparentTo(render)
loader.loadModel( \
"models/samples/fireflies/background").reparentTo(self.forest)
loader.loadModel( \
"models/samples/fireflies/foliage01").reparentTo(self.forest)
loader.loadModel( \
"models/samples/fireflies/foliage02").reparentTo(self.forest)
loader.loadModel( \
"models/samples/fireflies/foliage03").reparentTo(self.forest)
loader.loadModel( \
"models/samples/fireflies/foliage04").reparentTo(self.forest)
loader.loadModel( \
"models/samples/fireflies/foliage05").reparentTo(self.forest)
loader.loadModel( \
"models/samples/fireflies/foliage06").reparentTo(self.forest)
loader.loadModel( \
"models/samples/fireflies/foliage07").reparentTo(self.forest)
loader.loadModel( \
"models/samples/fireflies/foliage08").reparentTo(self.forest)
loader.loadModel( \
"models/samples/fireflies/foliage09").reparentTo(self.forest)
self.forest.hide(BitMask32(self.lightMask | self.plainMask))
# Cause the final results to be rendered into the main window on a card.
cm = CardMaker("card")
cm.setFrameFullscreenQuad()
self.card = render2d.attachNewNode(cm.generate())
self.card.setTexture(self.texFinal)
# Post the instructions.
self.title = addTitle(
"Panda3D: Tutorial - Fireflies using Deferred Shading")
self.inst1 = addInstructions(0.95, "ESC: Quit")
self.inst2 = addInstructions(
0.90, "Up/Down: More / Fewer Fireflies (Count: unknown)")
self.inst3 = addInstructions(
0.85, "Right/Left: Bigger / Smaller Fireflies (Radius: unknown)")
self.inst4 = addInstructions(0.80,
"V: View the render-to-texture results")
# Panda contains a built-in viewer that lets you view the results of
# your render-to-texture operations. This code configures the viewer.
base.bufferViewer.setPosition("llcorner")
base.bufferViewer.setCardSize(0, 0.40)
base.bufferViewer.setLayout("vline")
self.toggleCards()
self.toggleCards()
# Firefly parameters
self.fireflies = []
self.sequences = []
self.scaleseqs = []
self.glowspheres = []
self.fireflysize = 1.0
self.spheremodel = loader.loadModel("models/misc/sphere.flt")
self.setFireflySize(25.0)
while (len(self.fireflies) < 5):
self.addFirefly()
self.updateReadout()
# these allow you to change parameters in realtime
self.accept("escape", sys.exit, [0])
self.accept("arrow_up", self.incFireflyCount, [1.1111111])
self.accept("arrow_down", self.decFireflyCount, [0.9000000])
self.accept("arrow_right", self.setFireflySize, [1.1111111])
self.accept("arrow_left", self.setFireflySize, [0.9000000])
self.accept("v", self.toggleCards)
self.accept("V", self.toggleCards)
self.nextadd = 0
taskMgr.add(self.spawnTask, "spawner")
def reconfigure(self, fullrebuild, changed):
""" Reconfigure is called whenever any configuration change is made. """
configuration = self.configuration
if (fullrebuild):
self.cleanup()
if (len(configuration) == 0):
return
auxbits = 0
needtex = {}
needtex["color"] = True
if (configuration.has_key("CartoonInk")):
needtex["aux"] = True
auxbits |= AuxBitplaneAttrib.ABOAuxNormal
if (configuration.has_key("Bloom")):
needtex["bloom0"] = True
needtex["bloom1"] = True
needtex["bloom2"] = True
needtex["bloom3"] = True
auxbits |= AuxBitplaneAttrib.ABOGlow
if (configuration.has_key("ViewGlow")):
auxbits |= AuxBitplaneAttrib.ABOGlow
for tex in needtex:
self.textures[tex] = Texture("scene-"+tex)
self.textures[tex].setWrapU(Texture.WMClamp)
self.textures[tex].setWrapV(Texture.WMClamp)
needtexpix = True
self.finalQuad = self.manager.renderSceneInto(textures = self.textures, auxbits=auxbits)
if (self.finalQuad == None):
self.cleanup()
return False
if (configuration.has_key("Bloom")):
bloomconf = configuration["Bloom"]
bloom0=self.textures["bloom0"]
bloom1=self.textures["bloom1"]
bloom2=self.textures["bloom2"]
bloom3=self.textures["bloom3"]
if (bloomconf.size == "large"):
scale=8
downsampler="filter_down4.sha"
elif (bloomconf.size == "medium"):
scale=4
downsampler="filter_copy.sha"
else:
scale=2
downsampler="filter_copy.sha"
self.bloom.append(self.manager.renderQuadInto(colortex=bloom0, div=2, align=scale))
self.bloom.append(self.manager.renderQuadInto(colortex=bloom1, div=scale, align=scale))
self.bloom.append(self.manager.renderQuadInto(colortex=bloom2, div=scale, align=scale))
self.bloom.append(self.manager.renderQuadInto(colortex=bloom3, div=scale, align=scale))
self.bloom[0].setShaderInput("src", self.textures["color"])
self.bloom[0].setShader(self.loadShader("filter_bloomi.sha"))
self.bloom[1].setShaderInput("src", bloom0)
self.bloom[1].setShader(self.loadShader(downsampler))
self.bloom[2].setShaderInput("src", bloom1)
self.bloom[2].setShader(self.loadShader("filter_bloomx.sha"))
self.bloom[3].setShaderInput("src", bloom2)
self.bloom[3].setShader(self.loadShader("filter_bloomy.sha"))
text = "//Cg\n"
text += "void vshader(float4 vtx_position : POSITION,\n"
text += " out float4 l_position : POSITION,\n"
text += " uniform float4 texpad_txcolor,\n"
text += " uniform float4 texpix_txcolor,\n"
text += " out float4 l_texcoordC : TEXCOORD0,\n"
if (configuration.has_key("CartoonInk")):
text += " uniform float4 texpad_txaux,\n"
text += " uniform float4 texpix_txaux,\n"
text += " out float4 l_texcoordN : TEXCOORD1,\n"
if (configuration.has_key("Bloom")):
text += " uniform float4 texpad_txbloom3,\n"
text += " out float4 l_texcoordB : TEXCOORD2,\n"
text += " uniform float4x4 mat_modelproj)\n"
text += "{\n"
text += " l_position=mul(mat_modelproj, vtx_position);\n"
text += " l_texcoordC=(vtx_position.xzxz * texpad_txcolor) + texpad_txcolor;\n"
if (configuration.has_key("CartoonInk")):
text += " l_texcoordN=(vtx_position.xzxz * texpad_txaux) + texpad_txaux;\n"
if (configuration.has_key("Bloom")):
text += " l_texcoordB=(vtx_position.xzxz * texpad_txbloom3) + texpad_txbloom3;\n"
if (configuration.has_key("HalfPixelShift")):
text += " l_texcoordC+=texpix_txcolor*0.5;\n"
if (configuration.has_key("CartoonInk")):
text += " l_texcoordN+=texpix_txaux*0.5;\n"
text += "}\n"
text += "void fshader(\n"
text += "float4 l_texcoordC : TEXCOORD0,\n"
text += "uniform float4 texpix_txcolor,\n"
if (configuration.has_key("CartoonInk")):
text += "float4 l_texcoordN : TEXCOORD1,\n"
text += "uniform float4 texpix_txaux,\n"
if (configuration.has_key("Bloom")):
text += "float4 l_texcoordB : TEXCOORD2,\n"
for key in self.textures:
text += "uniform sampler2D k_tx" + key + ",\n"
if (configuration.has_key("CartoonInk")):
text += "uniform float4 k_cartoonseparation,\n"
if (configuration.has_key("VolumetricLighting")):
text += "uniform float4 k_casterpos,\n"
text += "uniform float4 k_vlparams,\n"
text += "out float4 o_color : COLOR)\n"
text += "{\n"
text += " o_color = tex2D(k_txcolor, l_texcoordC.xy);\n"
if (configuration.has_key("CartoonInk")):
text += CARTOON_BODY
if (configuration.has_key("Bloom")):
text += "o_color = saturate(o_color);\n";
text += "float4 bloom = 0.5*tex2D(k_txbloom3, l_texcoordB.xy);\n"
text += "o_color = 1-((1-bloom)*(1-o_color));\n"
if (configuration.has_key("ViewGlow")):
text += "o_color.r = o_color.a;\n"
if (configuration.has_key("VolumetricLighting")):
text += "float decay = 1.0f;\n"
text += "float2 curcoord = l_texcoordC.xy;\n"
text += "float2 lightdir = curcoord - k_casterpos.xy;\n"
text += "lightdir *= k_vlparams.y;\n"
text += "half4 sample = tex2D(k_txcolor, curcoord);\n"
text += "float3 vlcolor = sample.rgb * sample.a;\n"
text += "for (int i = 0; i < k_vlparams.x; i++) {\n"
text += " curcoord -= lightdir;\n"
text += " sample = tex2D(k_txcolor, curcoord);\n"
text += " sample *= sample.a * decay;//*weight\n"
text += " vlcolor += sample.rgb;\n"
text += " decay *= k_vlparams.z;\n"
text += "}\n"
text += "o_color += float4(vlcolor * k_vlparams.w, 1);\n"
if (configuration.has_key("Inverted")):
text += "o_color = float4(1, 1, 1, 1) - o_color;\n"
text += "}\n"
self.finalQuad.setShader(Shader.make(text))
for tex in self.textures:
self.finalQuad.setShaderInput("tx"+tex, self.textures[tex])
if (changed == "CartoonInk") or fullrebuild:
if (configuration.has_key("CartoonInk")):
separation = configuration["CartoonInk"]
self.finalQuad.setShaderInput("cartoonseparation", Vec4(separation,0,separation,0))
if (changed == "Bloom") or fullrebuild:
if (configuration.has_key("Bloom")):
bloomconf = configuration["Bloom"]
intensity = bloomconf.intensity * 3.0
self.bloom[0].setShaderInput("blend", bloomconf.blendx, bloomconf.blendy, bloomconf.blendz, bloomconf.blendw * 2.0)
self.bloom[0].setShaderInput("trigger", bloomconf.mintrigger, 1.0/(bloomconf.maxtrigger-bloomconf.mintrigger), 0.0, 0.0)
self.bloom[0].setShaderInput("desat", bloomconf.desat)
self.bloom[3].setShaderInput("intensity", intensity, intensity, intensity, intensity)
if (changed == "VolumetricLighting") or fullrebuild:
if (configuration.has_key("VolumetricLighting")):
config = configuration["VolumetricLighting"]
tcparam = config.density / float(config.numsamples)
self.finalQuad.setShaderInput("vlparams", config.numsamples, tcparam, config.decay, config.exposure)
self.update()
return True
def loadShader(self, name):
fn = os.path.join(PANDA_SHADER_PATH, name)
fn = Filename.fromOsSpecific(fn)
fn.makeTrueCase()
return Shader.load(fn)
