When I tried to export a plane obj model in blender, I found it in three JS, the number of vertices has increased,
obj model
renderer:
use ShaderMaterial to renderer
const rawMaterial = new ShaderMaterial({
uniforms: {
uColor: {
value: new Color(0x3581fc),
},
uOpacity: {
value: 0.6,
},
},
fragmentShader: `
uniform vec3 uColor;
uniform float uOpacity;
void main() {
gl_FragColor = vec4(uColor, uOpacity);
}
`,
vertexShader: `
varying vec3 uColor;
void main() {
vec4 viewPostion = viewMatrix * modelMatrix * vec4(position, 1);
gl_Position = projectionMatrix * viewPostion;
}
`,
transparent: true,
depthWrite: false,
})
this obj model data
# Blender v3.1.2 OBJ File: ''
# www.blender.org
o 平面_平面.002
v 9.251820 0.000000 9.251820
v -9.251820 0.000000 -9.251820
v 9.251820 0.000000 -9.251820
v -9.251820 0.000000 -2.399833
v -0.011656 0.000000 9.251820
v -0.012841 0.000000 0.211577
v -5.425591 0.000000 0.209980
v -5.425742 0.000000 -2.402929
s off
f 4 8 7 6 5 1 3 2