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The scene below gives me a "Expected 'object', undeclared identifier 'Obj1'
found instead" at line 118.
I suspect it has to do with changes in MechSim_Show_Patch (mechsim.inc)
since MegPOV v1.10.....
// Persistence of Vision Ray Tracer Scene Description File
// File: tutorial08.pov
// Desc: mechanics simulation tutorial scene 8
// Date: October 2002
// Auth: Christoph Hormann
// Requirements: IsoCSG library: http://www.tu-bs.de/~y0013390/pov/ic/
//
//
// Render instructions:
// --------------------
//
// first render as still to generate simulation data:
//
// -w320 -h240
//
// then render as animation:
//
// -w320 -h240 +a0.3 -j +kff70
#version unofficial megapov 1.0;
#include "mechsim.inc"
#include "iso_csg.inc"
#declare fn_Env=
IC_Merge3(
IC_Plane(z, 0),
IC_Cylinder(-z, z*1.5, 0.3),
IC_Sphere(z*1.5, 0.6)
)
#declare Trans1 =
transform {
translate -25*<0.055, 0.055, 0>
translate 2.2*z
}
global_settings {
assumed_gamma 1.0
mechsim {
gravity -4.5*z
method 4
environment {
function { fn_Env(x, y, z) }
stiffness 60000
method 1
}
#if (clock_on)
step_count 800
time_step (1/30)/4000
topology {
load_file "tut08.dat"
save_file "tut08.dat"
}
#else
step_count 0
topology {
MechSim_Generate_Patch_Std(<0, 0, 0>, 0.03, 8000, 10000, 0, true,
<0.055, 0.055>, <50, 50>, Trans1, 2)
save_file "tut08.dat"
}
#end
}
}
// ----------------------------------------
camera {
location <-6.0, -16.0, 7.0>*0.6
up z
sky z
look_at <0.0, 0.0, 1.0>
angle 30
}
light_source {
<2000, -3000, 2700>
color rgb <1.7, 1.5, 1.2>
}
sky_sphere {
pigment {
gradient z
color_map {
[0.0 rgb <0.6,0.7,1.0>]
[0.2 rgb <0.2,0.3,0.9>]
}
}
}
// ----------------------------------------
#declare T_Env=
texture {
pigment { color rgb 1.5 }
finish { ambient 0.05 diffuse 0.6 }
}
union {
plane { z, 0 }
cylinder { -z, z*1.5, 0.3 }
sphere { z*1.5, 0.6 }
texture { T_Env }
}
// ----------------------------------------
#declare Obj1=MechSim_Show_Patch(0, 50, 50, true, true, -1, "")
object {
Obj1
texture {
uv_mapping
pigment {
checker
color rgb <0.9, 0.2, 0.1>
color rgb <0.1, 0.1, 0.2>
scale 0.075
}
finish {
ambient 0.04
diffuse 0.6
specular 0.35
reflection 0.15
}
}
}
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Looks like MechSim_Show_Patch doesn't return an object when needed in:
#declare Obj1=MechSim_Show_Patch(0, 50, 50, true, true, -1, "")
so Obj1 stays undefined.
If there is a way of putting a generated patch into an object or saving the
thing as sdl-code to a file, I'd be very happy!
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