Any analog to glDepthRange?

[jwwalker]

Is there any way in Filament to fool with depth the way OpenGL's glDepthRange does? I mean, short of messing with gl_FragDepth in a fragment shader.

[romainguy]

There is not, no.

[jwwalker]

@romainguy It turns out that it is possible to emulate glDepthRange. In the material, add a parameter depthRange of type float2. And in the vertex shader, say:

material.clipSpaceTransform[3][2] = materialParams.depthRange.x +
    materialParams.depthRange.y - 1.0;
material.clipSpaceTransform[2][2] = materialParams.depthRange.y -
    materialParams.depthRange.x;

[romainguy]

Oh yeah, I meant we don't offer the equivalent of glDepthRange on the CPU side.