Irrlicht Engine

I got it working.

void main(void)
{
vec4 sPos = WVPMatrix * gl_Vertex;
gl_Position = sPos;

eyeLinear.x = 0.5 * (sPos.w + sPos.x);
eyeLinear.y = 0.5 * (sPos.w + sPos.y);
eyeLinear.z = sPos.w;

texCoord = gl_MultiTexCoord0.xy;
}

My vertex shader is slightly different: uniform mat4 WVPMatrix; uniform float refractionDisplacement; uniform float colorStrength; varying vec2 texCoord; varying vec3 eyeLinear; void main(void) { vec4 sPos = WVPMatrix * gl_Vertex; gl_Position = sPos; eyeLinear.x = 0.5 * (sPos.z + sPos.x); eyeLinear....

This is what I get, when I render just refraction, with no diffuse texture:

https://i.ibb.co/kXTYgWv/refraction-rendering.png

I have perfectly working refraction shader in HLSL: float4x4 WVPMatrix; float refractionDisplacement; float colorStrength; struct VS_OUTPUT { float4 Pos : POSITION; float2 texCoord : TEXCOORD0; float3 eyeLinear : TEXCOORD1; }; VS_OUTPUT vertexMain(float4 Pos : POSITION, float2 texCoord : TEXCOORD0) ...

Does anyone have on computer source code with shaders for this glass refraction demo?
Original website is down. And Internet Archive webpage does not contain this demo from past

Hi,

has anyone tutorials from http://sio2.g0dsoft.com/ . This page no longer exists.
That were good tutorials, If anyone has them please upload them to some free server.