lhog

-- $Id: gui_metal_features.lua 3171 2008-11-06 09:06:29Z det $
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
--
--  file:    gui_metal_features.lua
--  brief:   highlights features with metal in metal-map viewmode
--  author:  Dave Rodgers
--
--  Copyright (C) 2007.
--  Licensed under the terms of the GNU GPL, v2 or later.

lhog

//https://www.shadertoy.com/view/4scBDS

#define sum3(v) (v[0]+v[1]+v[2])
#define sqr(n) (n*n)
#define L(x, y) sqrt(sum3(sqr(vec3(texture(iChannel0, (U+vec2(x,y))/iResolution.xy).rgb)*vec3(.299, .587, .114))))
void mainImage( out vec4 O, in vec2 U ) {
    vec3 a = vec3(-1, -2, -1), b = vec3(1, 2, 1);
    float 	x = dot(vec3(L(-1,-1), L(-1,0), L(-1,1)), a)
        		+dot(vec3(L(1,-1), L(1,0), L(1,1)), b),
        

lhog

function gadget:GetInfo()
  return {
    name      = "Lava Gadget 2.3",
    desc      = "lava",
    author    = "knorke, Beherith, The_Yak, Anarchid, Kloot, Gajop, ivand",
    date      = "Feb 2011, Nov 2013",
    license   = "GNU GPL, v2 or later",
    layer     = -3,
    enabled   = true
  }

lhog

--Inputs
LEVELS = 20
x= 0.15

--Vars
rest = 1.0
sum = 0

array = {}
table.insert(array, 0.0)

lhog

//https://www.shadertoy.com/view/4djSRW
// Hash without Sine
// Creative Commons Attribution-ShareAlike 4.0 International Public License
// Created by David Hoskins.

// *** Change these to suit your range of random numbers..

#if 1
	// *** Use this for integer stepped ranges, ie Value-Noise/Perlin noise functions.
	#define HASHSCALE1 .1031

lhog

vec3 SpherePoints_GoldenAngle(float i, float numSamples) {

    const float goldenAngle = PI * (3.0 - sqrt(5.0));
    
    float theta = i * goldenAngle;
    float z = (1.0 - 1.0/numSamples) * (1.0 - 2.0 * i / (numSamples - 1.0));
	float radius = sqrt(1.0 - z * z);
	return vec3(radius * cos(theta), radius * sin(theta), z);
}

lhog

//https://www.shadertoy.com/view/MslyRr
  ///////////////////////////////////////////////////////////////////////////////

	mat4 RotationMatrix(vec3 axis, float angle)
	{
		axis = normalize(axis);
		float s = sin(angle);
		float c = cos(angle);
		float oc = 1.0 - c;
		return mat4(oc * axis.x * axis.x + c,           oc * axis.x * axis.y - axis.z * s,  oc * axis.z * axis.x + axis.y * s,  0.0,

lhog

|          Image format (sized)         |      Unsized       | Compr |    Pixel format    |             Pixel type            |
|---------------------------------------|--------------------|-------|--------------------|-----------------------------------|
| GL_R8                                 | GL_RED             | False | GL_RED             | GL_UNSIGNED_BYTE                  |
| GL_R8_SNORM                           | GL_RED             | False | GL_RED             | GL_BYTE                           |
| GL_R16                                | GL_RED             | False | GL_RED             | GL_UNSIGNED_SHORT                 |
| GL_R16_SNORM                          | GL_RED             | False | GL_RED             | GL_SHORT                          |
| GL_R32F                               | GL_RED             | False | GL_RED             | GL_FLOAT                          |
| GL_R8I                                | GL_RED             | False | GL_RED_INTEGER     | GL_INT                            |

lhog

#include <glad/glad.h>
#include <GLFW/glfw3.h>

#include <memory>
#include <iostream>
#include <cassert>

void framebuffer_size_callback(GLFWwindow* window, int width, int height);
void processInput(GLFWwindow *window);

lhog

-- Spring OpenGL abstraction layer (GLAL). Abstracts away the difference between maintenance and develop engines
-- Author: ivand/LHoG

local isDevelop = (gl.CreateVertexArray ~= nil)

if isDevelop then
-----------------------------------------------------------------
-- Develop
-----------------------------------------------------------------