def extract(self, scene): trans = tina.identity() if self.trans is not None: offset, rotation, scale = self.trans if scale is not None: trans = tina.scale(scale) @ trans if rotation is not None: trans = tina.quaternion(rotation) @ trans if offset is not None: trans = tina.translate(offset) @ trans if self.primitives is not None: for primitive in self.primitives: primitive.extract(scene, trans)
import taichi as ti import numpy as np import tina ti.init(ti.gpu) scene = tina.PTScene(smoothing=True, texturing=True) scene.add_object(tina.PrimitiveMesh.sphere(), tina.Glass()) scene.add_object( tina.MeshTransform(tina.MeshModel('assets/cube.obj'), tina.translate([0, -3, 0]) @ tina.scale(2)), tina.Lambert()) scene.add_object( tina.MeshTransform(tina.MeshModel('assets/plane.obj'), tina.translate([0, 4, 0]) @ tina.scale(0.2)), tina.Lamp(color=tina.Texture("assets/cloth.jpg")) * 64) gui = ti.GUI('bdpt', scene.res) scene.update() while gui.running: if scene.input(gui): scene.clear() scene.render(nsteps=6) scene.render_light(nsteps=6) gui.set_image(scene.img) gui.show()
import taichi as ti import numpy as np import tina ti.init(ti.gpu) scene = tina.PTScene(smoothing=True, texturing=True) scene.load_gltf('assets/cornell.gltf') scene.add_object(tina.MeshTransform(tina.MeshModel('assets/plane.obj'), tina.translate([0, 3.98, 0]) @ tina.scale(0.1)), tina.Lamp(color=64)) if isinstance(scene, tina.PTScene): scene.update() gui = ti.GUI('cornell_box', scene.res) scene.init_control(gui, center=(0, 2, 0), radius=5) while gui.running: scene.input(gui) if isinstance(scene, tina.PTScene): scene.render(nsteps=8) else: scene.render() gui.set_image(scene.img) gui.show() ti.imwrite(scene.img, 'cornell.png')
import taichi as ti import tina ti.init(ti.gpu) scene = tina.Scene() # load the monkey model with the `tina.MeshModel` node: model = tina.MeshModel('assets/monkey.obj') # transform the mesh using the `tina.Transform` node: tmodel = tina.MeshTransform(model) # load the desired node to be displayed: scene.add_object(tmodel) #scene.add_object(model) gui = ti.GUI('transform') while gui.running: scene.input(gui) # create a matrix representing translation along X-axis dx = ti.sin(gui.frame * 0.03) matrix = tina.translate([dx, 0, 0]) # set the model transformation matrix for `tina.Transform` node tmodel.set_transform(matrix) scene.render() gui.set_image(scene.img) gui.show()
cloth = tina.CookTorrance(basecolor=tina.Texture('assets/cloth.jpg')) scene.add_object(mesh, cloth) scene.add_object(ball) gui = ti.GUI('Mass Spring', scene.res, fast_gui=True) scene.init_control(gui, center=ball_pos, theta=np.pi / 2 - np.radians(30), radius=1.5) scene.lighting.clear_lights() scene.lighting.add_light(dir=[0, 1, 1], color=[0.9, 0.9, 0.9]) scene.lighting.set_ambient_light([0.1, 0.1, 0.1]) ball.set_transform(tina.translate(ball_pos) @ tina.scale(ball_radius)) init() while gui.running: scene.input(gui) if not gui.is_pressed(gui.SPACE): for i in range(steps): substep() if gui.is_pressed('r'): init() mesh.pos.copy_from(x)
import taichi as ti import numpy as np import tina ti.init(ti.opengl) scene = tina.PTScene(smoothing=True) roughness = tina.Param(float, initial=0.2) metallic = tina.Param(float, initial=1.0) scene.add_object(tina.MeshModel('assets/sphere.obj'), tina.PBR(metallic=metallic, roughness=roughness)) scene.add_object(tina.MeshTransform(tina.MeshModel('assets/plane.obj'), tina.translate([0, 0, 4]) @ tina.eularXYZ([ti.pi / 2, 0, 0]) #@ tina.scale(0.1)), tina.Lamp(color=32)) @ tina.scale(0.4)), tina.Lamp(color=1)) gui = ti.GUI('path', scene.res) roughness.make_slider(gui, 'roughness', 0, 1, 0.01) metallic.make_slider(gui, 'metallic', 0, 1, 0.01) scene.update() while gui.running: if scene.input(gui): scene.clear() scene.render(nsteps=6) gui.set_image(scene.img) gui.show() #ti.imwrite(scene.img, 'output.png')
import taichi as ti import tina ti.init(ti.gpu) scene = tina.Scene(smoothing=True, rtx=True) material = tina.Phong(shineness=256) model = tina.PrimitiveMesh.sphere() scene.add_object(model, material) model2 = tina.MeshTransform(tina.PrimitiveMesh.sphere(), tina.translate([1.4, 0, 0]) @ tina.scale(0.5)) scene.add_object(model2, material) gui = ti.GUI('matball') scene.update() scene.init_control(gui) while gui.running: scene.input(gui) scene.render() gui.set_image(scene.img) gui.show()
import taichi as ti import numpy as np import tina ti.init(ti.gpu) scene = tina.PTScene(smoothing=True) #scene.lighting.skybox = tina.Atomsphere() #scene.lighting.skybox = tina.Skybox('assets/grass.jpg') scene.add_object(tina.PrimitiveMesh.sphere(), tina.Glass()) scene.add_object( tina.MeshTransform(tina.MeshModel('assets/cube.obj'), tina.translate([0, -3, 0]) @ tina.scale(2)), tina.Lambert()) scene.lighting.set_lights(np.array([ [0, 5, 0], ])) scene.lighting.set_light_colors(np.array([ [16, 16, 16], ])) scene.lighting.set_light_radii(np.array([ 0.01, ])) gui = ti.GUI('wave', scene.res) scene.update() while gui.running: if scene.input(gui):
import taichi as ti import numpy as np import taichi_inject import tina ti.init(ti.cpu) scene = tina.PTScene(smoothing=True, texturing=True) mesh = tina.MeshTransform(tina.MeshModel('assets/monkey.obj'), tina.translate([0, -0.5, 0])) material = tina.Lambert() mesh2 = tina.MeshTransform(tina.MeshModel('assets/sphere.obj'), tina.translate([0, +0.5, 0])) material2 = tina.Lambert(color=tina.Texture('assets/uv.png')) scene.add_object(mesh, material) scene.add_object(mesh2, material2) scene.build() scene.lighting.set_lights( np.array([ [0, 1.38457, -1.44325], ], dtype=np.float32)) scene.lighting.set_light_radii(np.array([ 0.2, ], dtype=np.float32)) gui = ti.GUI('BVH', scene.res) while gui.running and not gui.get_event(gui.ESCAPE, gui.SPACE):