Babylon.js/src/Shaders/shadowMap.vertex.fx

// Attribute
attribute vec3 position;

#include<bonesDeclaration>

// Uniforms
#include<instancesDeclaration>

uniform mat4 viewProjection;
uniform vec2 biasAndScale;
uniform vec2 depthValues;

varying float vDepthMetric;

#ifdef ALPHATEST
varying vec2 vUV;
uniform mat4 diffuseMatrix;
#ifdef UV1
attribute vec2 uv;
#endif
#ifdef UV2
attribute vec2 uv2;
#endif
#endif

void main(void)
{
#include<instancesVertex>
#include<bonesVertex>

vec4 worldPos = finalWorld * vec4(position, 1.0);
gl_Position = viewProjection * worldPos;


vDepthMetric = ((gl_Position.z + depthValues.x) / (depthValues.y)) + biasAndScale.x;

 gl_Position.z = vDepthMetric;
// gl_Position.w = 1.0;

#ifdef ALPHATEST
	#ifdef UV1
		vUV = vec2(diffuseMatrix * vec4(uv, 1.0, 0.0));
	#endif
	#ifdef UV2
		vUV = vec2(diffuseMatrix * vec4(uv2, 1.0, 0.0));
	#endif
#endif
}