User:Le Forgeron/warp - Revision history

Le Forgeron: /* hyperbolic disc warp */

2020-09-06T10:39:04Z

hyperbolic disc warp

Le Forgeron: /* hyperbolic disc warp */

2020-09-06T10:37:50Z

hyperbolic disc warp

Le Forgeron: /* rotation warp */

2020-09-06T10:34:09Z

rotation warp

Le Forgeron: /* direct to a surface */

2020-07-30T12:01:43Z

direct to a surface

Le Forgeron: warp can be inversed

2020-07-30T11:57:04Z

warp can be inversed

Le Forgeron: code is available for each part

2020-07-30T11:51:47Z

code is available for each part

Le Forgeron at 15:35, 17 July 2019

2019-07-17T15:35:59Z

Le Forgeron: Created page with "{{User:Le_Forgeron/HgPovray38/soon}} == direct to a surface == === cone === wrap around a circular cone (oriented along y axis) with apex at '''origin''' point and a radius o..."

2018-07-04T12:03:41Z

Created page with "{{User:Le_Forgeron/HgPovray38/soon}} == direct to a surface == === cone === wrap around a circular cone (oriented along y axis) with apex at '''origin''' point and a radius o..."

New page

{{User:Le_Forgeron/HgPovray38/soon}}

== direct to a surface ==
=== cone ===
wrap around a circular cone (oriented along y axis) with apex at '''origin''' point and a radius of '''unit_base''' one unit away from that apex.
The x=0 half-plane (for z>0) remains itself.

Each axis of '''parameter''' is the multiplying factor for that axe.

<source lang="pov">
warp { cone <origin>,unit_base,<parameter> }
</source>
{| border="1"
|
<source lang="pov">
cone { <0,2,0>,0,<0,0,0>,1
texture { pigment { My_pigment
warp { cone <0,2,0>,0.5,<3,5,7> }
}
}
}</source>
|
<source lang="pov">
cone { <0,2,0>,0.5,<0,0,0>,1
texture { pigment { My_pigment
warp { cone <0,4,0>,0.25,<3,5,7> }
}
}
}</source>
|+
|
[[Image:LeForgeron_warpcone2.png]]
|
[[Image:LeForgeron_warpcone.png]]
|+
|
[[Image:LeForgeron_warpcutcone2.png]]
|
[[Image:LeForgeron_warpcutcone.png]]
|}

=== cylinder ===
wrap around a cylinder (oriented along y axis) with <0,0,0> moved at '''origin''' point.
The x=0 half-plane (for z>0) remains itself.

Each axis of '''parameter''' is the multiplying factor for that axe.

<source lang="pov">
warp { cylinder <origin>,<parameter> }
</source>
{| border="1"
|colspan="2"|
<source lang="pov">
cylinder { <0,0,0>,<0,2,0>,1
texture { pigment { My_pigment
warp { cylinder <0,1,0>,<3,5,7> }
}
}
}
</source>
|+
|
[[Image:LeForgeron_warpcyl.png]]
|
[[Image:LeForgeron_warpcutcyl.png]]
|}

=== sphere ===

wrap around a sphere (main axe being the y axe) with <0,0,0> moved at '''origin''' point.
The x=0 half-plane (for z>0) remains itself.

Each axis of '''parameter''' is the multiplying factor for that axe.

<source lang="pov">
warp { sphere <origin>,<parameter> }
</source>
{| border="1"
|colspan="2"|
<source lang="pov">
sphere { <0,0.5,0>,1
texture { pigment { My_pigment
warp { sphere <0,0.5,0>,<3,5,7> }
}
}
}
</source>
|+
|
[[Image:LeForgeron_warpsphe.png]]
|
[[Image:LeForgeron_warpcutsphe.png]]
|}

=== torus ===
wrap around a torus (oriented along y axis) with <0,0,0> moved at '''origin''' point and a major radius of '''major'''.
The x=0 half-plane (for z>0) remains itself.

Each axis of '''parameter''' is the multiplying factor for that axe.

<source lang="pov">
warp { torus <origin>,major,<parameter> }
</source>
{| border="1"
|colspan="2"|
<source lang="pov">
torus { 0.55,0.45
texture { pigment { My_pigment
warp { torus <0,0,0>,0.55,<3,5,7> }
}
}
}</source>
|+
|
[[Image:LeForgeron_warptorus.png]]
|
[[Image:LeForgeron_warpcuttorus.png]]
|}

@@ Line 2: / Line 2: @@
 == hyperbolic disc warp ==
-perform an hyperbolic projection on a disc;, Poincaré Hyperbolic disk.
+perform an hyperbolic projection on a disc: Poincaré Hyperbolic disk.
 * radius of the disc can be adjusted
 * inside of the disc can be scaled before the projection

@@ Line 13: / Line 13: @@
 {| border="1"
+|
 #version 3.8;
 global_settings{ assumed_gamma 1.0 }
@@ Line 36: / Line 37: @@
+}
 light_source { <0, -10, 20> 1 }
+</source>
+|
 [[Image:LeForgeron_warpDisc.png]]
 |}
 == rotation warp ==
 rotate along the z axis

@@ Line 1: / Line 1: @@
 {{User:Le_Forgeron/HgPovray38/available}}
 == rotation warp ==
 rotate along the z axis

@@ Line 41: / Line 41: @@
 == direct to a surface ==
-As a curiosity, the warp can be inversed by adding <source lang="pov">inverse</source> after the last parameter.
+As a curiosity, the warp can be inversed by adding <code>inverse</code> after the last parameter.
 === cone ===

← Older revision		Revision as of 11:51, 30 July 2020
Line 1:		Line 1:
−	{{User:Le_Forgeron/HgPovray38/~~soon~~}}	+	{{User:Le_Forgeron/HgPovray38/available}}

	== rotation warp ==		== rotation warp ==

← Older revision		Revision as of 15:35, 17 July 2019
Line 1:		Line 1:
	{{User:Le_Forgeron/HgPovray38/soon}}		{{User:Le_Forgeron/HgPovray38/soon}}
		+
		+	== rotation warp ==
		+	rotate along the z axis
		+
		+	<source lang="pov">
		+	warp { rotate PerUnit }
		+	</source>
		+
		+	{\| border="1"
		+	\|
		+	<source lang="pov">
		+	#version 3.8;
		+	global_settings{ assumed_gamma 1.0 }
		+
		+	camera {
		+	location <5, -20, 14>
		+	direction y
		+	sky z
		+	up z
		+	right image_width*x/image_height
		+	look_at 0
		+	angle 20
		+	}
		+
		+	#default{ finish { emission 0.5 reflection 0.5 } }
		+
		+	cylinder { 3.5z, -3.5z, 3
		+	texture { checker
		+	texture { pigment { red 1 } }
		+	texture { pigment { green 1 } }
		+	warp { rotate -1/29 }
		+	}
		+	}
		+	light_source { <0, -10, 20> 1 }
		+	</source>
		+	\|
		+	[[Image:LeForgeron_warpRotate.png]]
		+	\|}

	== direct to a surface ==		== direct to a surface ==