Cogl.MatrixStack.prototype.perspective

function perspective(fov_y: Number(gfloat), aspect: Number(gfloat), z_near: Number(gfloat), z_far: Number(gfloat)): void {
    // Gjs wrapper for cogl_matrix_stack_perspective()
}

Replaces the current matrix with a perspective matrix based on the provided values.

<note>You should be careful not to have too great a z_far / z_near ratio since that will reduce the effectiveness of depth testing since there wont be enough precision to identify the depth of objects near to each other.</note>

fov_y: Vertical field of view angle in degrees.
aspect: The (width over height) aspect ratio for display
z_near: The distance to the near clipping plane (Must be positive, and must not be 0)
z_far: The distance to the far clipping plane (Must be positive)