Geeks3D Forums
GeeXLab => GeeXLab - english forum => Topic started by: JeGX on January 24, 2019, 02:04:11 PM
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Here is a new demopack for GeeXLab (https://www.geeks3d.com/geexlab/). The pack contains all Shadertoy demos from the full code sample pack: old demos (OpenGL 2.1 in gl-21-xxxx/ folders) and recent demos (OpenGL 3.2 in gl-32-xxxx/ folders). There is also a special folder for Raspberry Pi (gl-21-shadertoy-rpi/).
The latest version of the shadertoy demopack can be downloaded from this link:
- Shadertoy Demopack DOWNLOAD (https://www.geeks3d.com/dl/show/50044)
You can download the latest GeeXLab from this page:
- GeeXLab DOWNLOADs (https://www.geeks3d.com/geexlab/downloads/)
Usage:
- unzip the demopack where you want.
- drag and drop a demo (.xml file) into GeeXLab.
(https://www.geeks3d.com/public/jegx/2019q1/shadertoy-2-geexlab-demopack-expansive-reaction-diffusion.jpg)
(https://www.geeks3d.com/public/jegx/2019q1/shadertoy-2-geexlab-demopack-easy-read-neon-clock.jpg)
(https://www.geeks3d.com/public/jegx/2019q1/shadertoy-2-geexlab-demopack-alien-corridor.jpg)
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Demo Ink and Silver (https://www.shadertoy.com/view/wsB3Rz) ported to GeeXLab
Location in the demopack: gl-32-shadertoy-01/gl32-ink-and-silver.xml
Downloads:
- Shadertoy demopack for GeeXLab (https://www.geeks3d.com/dl/show/50044)
- GeeXLab downloads (https://www.geeks3d.com/geexlab/downloads/)
Rendering speed:
- around 960 FPS @ 800x480 on a GeForce GTX 1080 + driver 417.71
- around 130 FPS @ 2560x1440 on a GeForce GTX 1080 + driver 417.71
(https://www.geeks3d.com/public/jegx/2019q1/shadertoy-to-geexlab-ink-and-silver-demo.jpg)
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Demo Procedural BVH (https://www.shadertoy.com/view/lsBSWK) ported to GeeXLab.
Location in the demopack: gl-32-shadertoy-multipass/gl32-procedural-bvh/demo.xml
Downloads:
- Shadertoy demopack for GeeXLab (https://www.geeks3d.com/dl/show/50044)
- GeeXLab downloads (https://www.geeks3d.com/geexlab/downloads/)
Rendering speed:
- around 22 FPS @ 800x480 and 900x480 on a GeForce GTX 1080 + driver 417.71
- around 6 FPS @ 2560x1440 on a GeForce GTX 1080 + driver 417.71
(https://www.geeks3d.com/public/jegx/2019q1/shadertoy-to-geexlab-procedural-bvh.jpg)
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Demo Register Allocation (https://www.shadertoy.com/view/wdj3zD) ported to GeeXLab.
Location in the demopack: gl-32-shadertoy-01/gl32-register-allocation.xml
Downloads:
- Shadertoy demopack for GeeXLab (https://www.geeks3d.com/dl/show/50044)
- GeeXLab downloads (https://www.geeks3d.com/geexlab/downloads/)
Tests:
- Resolution: 800x480
- GPU: GeForce GTX 1080 + 417.71 + Win10 64-bit 1809
NUM is a constant that can be changed in the pixel shader source code (line 75 in the XML demo file).
- NUM = 256 => 4500 FPS
- NUM = 512 => 3500 FPS
- NUM = 1024 => 2900 FPS
- NUM = 2048 => 2900 FPS
- NUM = 3072 => 2800 FPS
- NUM = 4080 => 2800 FPS
- NUM = 4096 => compiler crash
=> Internal error: assembly compile error for fragment shader at offset 783:
line 27, column 12: error: size of temp array must be integer
- NUM = 8192 => 0(47) : error C5041: cannot locate suitable resource to bind variable "data". Possibly large array.
For NUM=4096, the NVIDIA GLSL compiler gave me:
-------------
Internal error: assembly compile error for fragment shader at offset 783:
-- error message --
line 27, column 12: error: size of temp array must be integer
line 31, column 12: error: expected ','
line 39, column 12: error: expected ','
line 43, column 12: error: expected ','
line 44, column 20: error: expected ';'
line 45, column 20: error: expected ';'
line 46, column 20: error: expected ';'
-- internal assembly text --
!!NVfp5.0
OPTION NV_internal;
OPTION NV_bindless_texture;
# cgc version 3.4.0001, build date Jan 11 2019
# command line args:
#vendor NVIDIA Corporation
#version 3.4.0.1 COP Build Date Jan 11 2019
#profile gp5fp
#program main
#semantic iResolution
#semantic iTime
#semantic iMouse
#semantic iFrame
#semantic data : __LOCAL
#var float4 gl_FragCoord : $vin.WPOS : WPOS : -1 : 1
#var float4 FragColor : $vout.COL00 : COL0[0] : -1 : 1
#var float4 v_texcoord : : : -1 : 0
#var float3 iResolution : : : -1 : 0
#var float iTime : : c[0] : -1 : 1
#var float4 iMouse : : : -1 : 0
#var int iFrame : : c[1] : -1 : 1
#var float4 data[0] : : lmem0[0], 4096 : -1 : 1
PARAM c[2] = { program.local[0..1] };
ATTRIB fragment_position = fragment.position;
TEMP R0, R1, R2;
TEMP T;
TEMP lmem0[4096];
OUTPUT result_color0 = result.color;
MOV.F R0.yzw, {0, 1, 0, 0}.xxxy;
SIN.F32 R0.x, c[0].x;
MOV.F lmem0[0], R0;
TRUNC.S R1.x, fragment.position;
ADD.S R0.y, R1.x, c[1].x;
MOD.S R0.y, R0, {4096, 0, 0, 0}.x;
MOV.F R0.xzw, {0, 1, 0, 0}.xyxy;
MOV.S R1.x, R0.y;
ADD.F32 R1.y, c[0].x, {2, 0, 0, 0}.x;
SIN.F32 R0.y, R1.y;
MOV.F lmem0[R1.x], R0;
ADD.F32 R0.z, c[0].x, {4, 0, 0, 0}.x;
MOV.F R0.xyw, {0, 1, 0, 0}.xxzy;
SIN.F32 R0.z, R0.z;
MOV.F lmem0[4095], R0;
MOV.F R2.xyz, lmem0[4095].xyzw;
MOV.F R1.xyz, lmem0[R1.x].xyzw;
MOV.F R0.xyz, lmem0[0].xyzw;
ADD.F32 R0.xyz, R0, R1;
ADD.F32 result_color0.xyz, R0, R2;
MOV.F result_color0.w, {1, 0, 0, 0}.x;
END
# 21 instructions, 3 R-regs
For NUM=8192 :
0(47) : error C5041: cannot locate suitable resource to bind variable "data". Possibly large array.
(https://www.geeks3d.com/public/jegx/2019q1/shadertoy-2-geexlab-register-allocation.jpg)
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Demo Mist by Ohno! - part2 (https://www.shadertoy.com/view/wdBGWD) ported to GeeXLab.
Location in the demopack: gl-32-shadertoy-01/gl32-mist-by-ohno.xml
Downloads:
- Shadertoy demopack for GeeXLab (https://www.geeks3d.com/dl/show/50044)
- GeeXLab downloads (https://www.geeks3d.com/geexlab/downloads/)
Rendering speed (GeForce GTX 1080 + driver 417.71):
- 800x480 => 450 FPS
- 2560x1440 => 56 FPS
(https://www.geeks3d.com/public/jegx/2019q1/shadertoy-to-geexlab-mist-by-ohno.jpg)
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Demo Sonic Fusion (https://www.shadertoy.com/view/td2GRw) ported to GeeXLab.
Location in the demopack: gl-32-shadertoy-01/gl32-sonic-fusion.xml
Downloads:
- Shadertoy demopack for GeeXLab (https://www.geeks3d.com/dl/show/50044)
- GeeXLab downloads (https://www.geeks3d.com/geexlab/downloads/)
Rendering speed (GeForce GTX 1080 + driver 417.71):
- 800x480 => 4300 FPS
- 2560x1440 => 820 FPS
(https://www.geeks3d.com/public/jegx/2019q1/shadertoy-to-geexlab-sonic-fusion.jpg)
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Demo Bubble rings (https://www.shadertoy.com/view/WdB3Dw) ported to GeeXLab.
Location in the demopack: gl-32-shadertoy-01/gl32-bubble-rings.xml
Downloads:
- Shadertoy demopack for GeeXLab (https://www.geeks3d.com/dl/show/50044)
- GeeXLab downloads (https://www.geeks3d.com/geexlab/downloads/)
Rendering speed (GeForce GTX 1080 + driver 417.71):
- 800x480 => 2500 FPS
- 2560x1440 => 495 FPS
(https://www.geeks3d.com/public/jegx/2019q1/shadertoy-to-geexlab-bubble-rings.jpg)
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Demo Moon voxels (https://www.shadertoy.com/view/tdlSR8) ported to GeeXLab.
Location in the demopack: gl-32-shadertoy-multipass/gl32-moon-voxels/demo.xml
Downloads:
- Shadertoy demopack for GeeXLab (https://www.geeks3d.com/dl/show/50044)
- GeeXLab downloads (https://www.geeks3d.com/geexlab/downloads/)
Rendering speed (GeForce GTX 1080 + driver 419.17):
- 800x480 => 103 FPS
- 2560x1440 => 13 FPS
(https://www.geeks3d.com/public/jegx/2019q1/shadertoy-to-geexlab-moon-voxels.jpg)
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Demo abstract_mod (https://www.shadertoy.com/view/Xs2SWd) ported to GeeXLab.
Location in the demopack: gl-32-shadertoy-01/gl32-abstract_mod.xml
Downloads:
- Shadertoy demopack for GeeXLab (https://www.geeks3d.com/dl/show/50044)
- GeeXLab downloads (https://www.geeks3d.com/geexlab/downloads/)
Rendering speed (GeForce GTX 1080 + driver 419.35):
- 800x480 => 1453 FPS
- 2560x1440 => 219 FPS
(https://www.geeks3d.com/public/jegx/2019q1/shadertoy-to-geexlab-abstract_mod.jpg)
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Downloads:
- Shadertoy demopack for GeeXLab (https://www.geeks3d.com/dl/show/50044)
- GeeXLab downloads (https://www.geeks3d.com/geexlab/downloads/)
1 - Demo Round Voronoi Border Refinement (https://www.shadertoy.com/view/4sdcDN) ported to GeeXLab.
Location in the demopack: gl-32-shadertoy-01/gl32-round-voronoi-border-refinement.xml
Rendering speed (GeForce GTX 1080 + driver 419.35):
- 800x480: 2440 fps
- 2560x1440: 425 fps
(https://www.geeks3d.com/public/jegx/2019q1/shadertoy-to-geexlab-round-voronoi-border-refinement.jpg)
2 - Demo Round Voronoi Border : Fork (http://gl32-round-voronoi-border-fork) ported to GeeXLab.
Location in the demopack: gl-32-shadertoy-01/gl32-round-voronoi-border-refinement.xml
Rendering speed (GeForce GTX 1080 + driver 419.35):
- 800x480: 2340 fps
- 2560x1440: 396 fps
(https://www.geeks3d.com/public/jegx/2019q1/shadertoy-to-geexlab-round-voronoi-border-fork.jpg)
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Demo Rounding the Square (https://www.shadertoy.com/view/3dsSWs) ported to GeeXLab.
Based on this paper: Analytical Methods for Squaring the Disc (https://arxiv.org/ftp/arxiv/papers/1509/1509.06344.pdf)
Location in the demopack: gl-32-shadertoy-01/gl32-rounding-the-square.xml
Downloads:
- Shadertoy demopack for GeeXLab (https://www.geeks3d.com/dl/show/50044)
- GeeXLab downloads (https://www.geeks3d.com/geexlab/downloads/)
(https://www.geeks3d.com/public/jegx/2019q1/shadertoy-to-geexlab-rounding-the-square-01.jpg)
(https://www.geeks3d.com/public/jegx/2019q1/shadertoy-to-geexlab-rounding-the-square-02.jpg)
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Demo Outrun The Rain (https://www.shadertoy.com/view/ltccRl) ported to GeeXLab.
Location in the demopack: gl-32-shadertoy-multipass/gl32-outrun-the-rain/demo.xml
Downloads:
- Shadertoy demopack for GeeXLab (https://www.geeks3d.com/dl/show/50044)
- GeeXLab downloads (https://www.geeks3d.com/geexlab/downloads/)
Rendering speed (GeForce RTX 2070 + driver 425.42):
- 800x480: 425 fps
(https://www.geeks3d.com/public/jegx/2019q2/shadertoy-to-geexlab-outrun-the-rain.jpg)
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Demo Colored lines (https://www.shadertoy.com/view/tsBSWD) ported to GeeXLab.
Location in the demopack: gl-32-shadertoy-multipass/gl32-colored-lines/main.xml
Downloads:
- Shadertoy demopack for GeeXLab (https://www.geeks3d.com/dl/show/50044)
- GeeXLab downloads (https://www.geeks3d.com/geexlab/downloads/)
Rendering speed (GeForce RTX 2070 + driver 425.42):
- 800x480: 280 fps
(https://www.geeks3d.com/public/jegx/2019q2/shadertoy-2-geexlab-demopack-colored-lines.jpg)
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Demo Raymarching Primitives (https://www.shadertoy.com/view/3dsSWs) ported to GeeXLab.
Location in the demopack: gl-32-shadertoy-01/gl32-raymarching-primitives.xml
Downloads:
- Shadertoy demopack for GeeXLab (https://www.geeks3d.com/dl/show/50044)
- GeeXLab downloads (https://www.geeks3d.com/geexlab/downloads/)
(https://www.geeks3d.com/public/jegx/2019q2/shadertoy-2-geexlab-demopack-raymarching-primitives.jpg)
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Downloads:
- Shadertoy demopack for GeeXLab (https://www.geeks3d.com/dl/show/50044)
- GeeXLab downloads (https://www.geeks3d.com/geexlab/downloads/)
Demo Industrial Tunnel (https://www.shadertoy.com/view/4tKXzV)
Location in the demopack: gl-32-shadertoy-01/gl32-industrial-tunnel.xml
(https://www.geeks3d.com/public/jegx/2019q2/shadertoy-to-geexlab-industrial-tunnel.jpg)
Demo Abstract Water Tunnel (https://www.shadertoy.com/view/MsScRD)
Location in the demopack: gl-32-shadertoy-01/gl32-industrial-tunnel.xml
(https://www.geeks3d.com/public/jegx/2019q2/shadertoy-to-geexlab-abstract-water-tunnel.jpg)
Demo Random Block Passage (https://www.shadertoy.com/view/Xt3cWl)
Location in the demopack: gl-32-shadertoy-01/gl32-random-block-passage.xml
(https://www.geeks3d.com/public/jegx/2019q2/shadertoy-to-geexlab-random-block-passage.jpg)
Demo Traced Minkowski Tube (https://www.shadertoy.com/view/4lSXzh)
Location in the demopack: gl-32-shadertoy-01/gl32-traced-minkowski-tube.xml
(https://www.geeks3d.com/public/jegx/2019q2/shadertoy-to-geexlab-traced-minkowski-tube.jpg)
Demo Panelled Tube (https://www.shadertoy.com/view/MlKXz3)
Location in the demopack: gl-32-shadertoy-01/gl32-panelled-tube.xml
(https://www.geeks3d.com/public/jegx/2019q2/shadertoy-to-geexlab-gl32-panelled-tube.jpg)
Demo Abstract Corridor (https://www.shadertoy.com/view/MlXSWX)
Location in the demopack: gl-32-shadertoy-01/gl32-abstract-corridor.xml
(https://www.geeks3d.com/public/jegx/2019q2/shadertoy-to-geexlab-gl32-abstract-corridor.jpg)
Demo Abstract Island Cavern (https://www.shadertoy.com/view/Xld3W4)
Location in the demopack: gl-32-shadertoy-01/gl32-abstract-island-cavern.xml
(https://www.geeks3d.com/public/jegx/2019q2/shadertoy-to-geexlab-gl32-abstract-island-cavern.jpg)
Demo Underground Passageway (https://www.shadertoy.com/view/XdcfDf)
Location in the demopack: gl-32-shadertoy-multipass/gl32-underground-passageway/demo.xml
(https://www.geeks3d.com/public/jegx/2019q2/shadertoy-to-geexlab-gl32-underground-passageway.jpg)
Demo LatticeWithFolding (https://www.shadertoy.com/view/XsyczV)
Location in the demopack: gl-32-shadertoy-01/gl32-lattice-with-folding.xml
(https://www.geeks3d.com/public/jegx/2019q2/shadertoy-to-geexlab-gl32-lattice-with-folding.jpg)
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Demo Penrose Pathtraced (https://www.shadertoy.com/view/ttXGWr) ported to GeeXLab.
Location in the demopack: gl-32-shadertoy-multipass/gl32-penrose-pathtraced/demo.xml
Downloads:
- Shadertoy demopack for GeeXLab (https://www.geeks3d.com/dl/show/50044)
- GeeXLab downloads (https://www.geeks3d.com/geexlab/downloads/)
Rendering speed (GeForce RTX 2070 + driver 425.42):
- 800x480: 610 fps
Tip: mouse left button + move to discover the trick.
(https://www.geeks3d.com/public/jegx/2019q2/shadertoy-to-geexlab-penrose-pathtraced.jpg)
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Demo Warp Tunnel (https://www.shadertoy.com/view/tll3zB) ported to GeeXLab.
Location in the demopack: gl-32-shadertoy-01/gl32-warp-tunnel.xml
Downloads:
- Shadertoy demopack for GeeXLab (https://www.geeks3d.com/dl/show/50044)
- GeeXLab downloads (https://www.geeks3d.com/geexlab/downloads/)
Rendering speed (GeForce RTX 2070 + driver 430.53):
- 800x480: 1100 FPS
- 2560x1440: 150 FPS
(https://www.geeks3d.com/public/jegx/2019q2/shadertoy-to-geexlab-gl32-warp-tunnel.jpg)
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The shadertoy demopack has been updated.
Downloads:
- Shadertoy demopack for GeeXLab (https://www.geeks3d.com/dl/show/50044)
- GeeXLab downloads (https://www.geeks3d.com/geexlab/downloads/)
Some new demos:
- Demo: gl-32-shadertoy-02/planet-fall/
- shadertoy link (https://www.shadertoy.com/view/lltBWB).
(https://www.geeks3d.com/public/jegx/2019q4/geexlab2shadertoy-planet-fall.jpg)
- Demo: gl-32-shadertoy-02/happy-jumping/
- shadertoy link (https://www.shadertoy.com/view/3lsSzf).
(https://www.geeks3d.com/public/jegx/2019q4/geexlab2shadertoy-happy-jumping.jpg)
- Demo: gl-32-shadertoy-02/protean-clouds/
- shadertoy link (https://www.shadertoy.com/view/3l23Rh).
(https://www.geeks3d.com/public/jegx/2019q4/geexlab2shadertoy-protean-clouds.jpg)
- Demo: gl-32-shadertoy-multipass/gl32-then-and-before-pc4k-altair/
- shadertoy link (https://www.shadertoy.com/view/3ddGzn).
(https://www.geeks3d.com/public/jegx/2019q4/geexlab2shadertoy-then-and-before-pc4k-altair.jpg)
- Demo: gl-32-shadertoy-02/sphere-gears/
- shadertoy link (https://www.shadertoy.com/view/tt2XzG).
(https://www.geeks3d.com/public/jegx/2019q4/geexlab2shadertoy-sphere-gears.jpg)
-
The shadertoy demopack has been updated.
Downloads:
- Shadertoy demopack for GeeXLab (https://www.geeks3d.com/dl/show/50044)
- GeeXLab downloads (https://www.geeks3d.com/geexlab/downloads/)
New demos:
- shadertoy demo: Organic Dodecahedron (https://www.shadertoy.com/view/wd3GWM).
- in demopack: gl-32-shadertoy-multipass/gl32-organic-dodecahedron/
(https://www.geeks3d.com/public/jegx/2019q4/shadertoy2geexlab-organic-dodecahedron.jpg)
- shadertoy demo: Voodoo (https://www.shadertoy.com/view/tddXR4).
- in demopack: gl-32-shadertoy-02/voodoo/
(https://www.geeks3d.com/public/jegx/2019q4/shadertoy2geexlab-voodoo.jpg)
- shadertoy demo: ShaderTober - Sling (https://www.shadertoy.com/view/wdtXz4).
- in demopack: gl-32-shadertoy-02/shadertober-sling/
(https://www.geeks3d.com/public/jegx/2019q4/shadertoy2geexlab-shadertober-sling.jpg)
- shadertoy demo: Rounded Box Parametrization (https://www.shadertoy.com/view/wd3XRN).
- in demopack: gl-32-shadertoy-02/rounded-box-parametrization/
(https://www.geeks3d.com/public/jegx/2019q4/shadertoy2geexlab-rounded-box-parametrization.jpg)
- shadertoy demo: Faux Layered Extrusion (https://www.shadertoy.com/view/Wsc3Ds).
- in demopack: gl-32-shadertoy-02/faux-layered-extrusion/
(https://www.geeks3d.com/public/jegx/2019q4/shadertoy2geexlab-faux-layered-extrusion.jpg)
- shadertoy demo: Noise - Basic - 1D (https://www.shadertoy.com/view/3sd3Rs).
- in demopack: gl-32-shadertoy-02/noise-basic-1d/
(https://www.geeks3d.com/public/jegx/2019q4/shadertoy2geexlab-noise-basic-1d.jpg)
- shadertoy demo: Futuristic 3D circle (https://www.shadertoy.com/view/WsG3D3).
- in demopack: gl-32-shadertoy-multipass/gl32-futuristic-3d-circle/
(https://www.geeks3d.com/public/jegx/2019q4/shadertoy2geexlab-futuristic-3d-circle.jpg)
- shadertoy demo: Ethics Gradient (https://www.shadertoy.com/view/tdGGRh).
- in demopack: gl-32-shadertoy-multipass/gl32-ethics-gradient/
(https://www.geeks3d.com/public/jegx/2019q4/shadertoy2geexlab-ethics-gradient.jpg)
-
The shadertoy demopack has been updated.
Downloads:
- Shadertoy demopack for GeeXLab (https://www.geeks3d.com/dl/show/50044)
- GeeXLab downloads (https://www.geeks3d.com/geexlab/downloads/)
New demos:
- shadertoy demo: Multiscale mip fluid (https://www.shadertoy.com/view/tsKXR3)
- in demopack: gl-32-shadertoy-multipass/gl32-multiscale-mip-fluid/
(https://www.geeks3d.com/public/jegx/2019q4/geexlab-shadertoy-multiscale-mip-fluid.jpg)
- shadertoy demo: Wait what cybertruck (https://www.shadertoy.com/view/wdGXzK)
- in demopack: gl-32-shadertoy-02/wait-what-cybertruck/
(https://www.geeks3d.com/public/jegx/2019q4/geexlab-shadertoy-wait-what-cybertruck.jpg)
- shadertoy demo: Planetary gears (https://www.shadertoy.com/view/MsGczV)
- in demopack: gl-32-shadertoy-02/planetary-gears/
(https://www.geeks3d.com/public/jegx/2019q4/geexlab-shadertoy-planetary-gears.jpg)
- shadertoy demo: Temple of the star (https://www.shadertoy.com/view/WdVSRt)
- in demopack: gl-32-shadertoy-multipass/gl32-temple-of-the-star/
(https://www.geeks3d.com/public/jegx/2019q4/geexlab-shadertoy-temple-of-the-star.jpg)
-
The shadertoy demopack has been updated.
Downloads:
- Shadertoy demopack for GeeXLab (https://www.geeks3d.com/dl/show/50044)
- GeeXLab downloads (https://www.geeks3d.com/geexlab/downloads/)
New demos:
- shadertoy demo: scribbles video (https://www.shadertoy.com/view/tl33WN)
- in demopack: gl-32-shadertoy-multipass/gl32-scribbles-video/
(https://www.geeks3d.com/public/jegx/2019q4/shadertoy2geexlab-scribbles-video.jpg)
- shadertoy demo: abstract terrain objects (https://www.shadertoy.com/view/ttXGWH)
- in demopack: gl-32-shadertoy-02/abstract-terrain-objects/
(https://www.geeks3d.com/public/jegx/2019q4/shadertoy2geexlab-abstract-terrain-objects.jpg)
- shadertoy demo: rs-x-mixtape (https://www.shadertoy.com/view/wttGW4)
- in demopack: gl-32-shadertoy-02/rs-x-mixtape/
(https://www.geeks3d.com/public/jegx/2019q4/shadertoy2geexlab-rs-x-mixtape.jpg)
- shadertoy demo: mandala star pattern (https://www.shadertoy.com/view/wttGW4)
- in demopack: gl-32-shadertoy-02/mandala-star-pattern/
(https://www.geeks3d.com/public/jegx/2019q4/shadertoy2geexlab-mandala-star-pattern.jpg)