source: downloads/Samples/Media/materials/programs/DepthShadowmapCasterVp.glsl @ 3

uniform mat4 worldViewProj;
uniform vec4 texelOffsets;
uniform vec4 depthRange;

varying vec2 depth;

void main()
{
        gl_Position = ftransform();

        // fix pixel / texel alignment
        gl_Position.xy += texelOffsets.zw * gl_Position.w;
        // linear depth storage
        // offset / scale range output
#if LINEAR_RANGE
        depth.x = (gl_Position.z - depthRange.x) * depthRange.w;
#else
        depth.x = gl_Position.z;
#endif
        depth.y = gl_Position.w;


}