Introducing Accelerad's real-time interface for glare and visual discomfort prediction: AcceleradRT is the first major departure from Accelerad's method of porting Radiance functionality to the GPU. Instead, AcceleradRT adds new functions and combines the capabilities of other programs such as rpict, rvu, evalglare, and wxfalsecolor with GPU acceleration.
In AcceleradRT, you can:
AcceleradRT includes an experimental feature, AcceleradVR, for experiencing the luminous environment in virtual reality. AcceleradVR uses third party software to stream AcceleradRT's real-time rendering to a smartphone. The stereo image can be viewed with any VR headset, including Google cardboard. To use AcceleadVR:
Use head movement, your keyboard, or any USB game controller to move through your virtual space. On game controllers and joysticks, hold down Button 2 to switch from conventional navigation to vertical movement. For keyboard navigation, use forward (W), back (S), left (A), right (D), and arrow keys to move up, down, or spin.
AcceleradRT does not need to be run from the command line, as most settings can be adjusted in the exposure settings (), rendering settings (), or camera settings (). For convenience, advanced users may still adjust parameters via the command line.
For example, specify an initial hemispherical camera view and octree file as follows:
AcceleradRT -vp 2.5 -3 2.5 -vd 0 1 0 -vu 0 0 1 -vta -vv 180 -vh 180 -ab 3 -x 768 -y 768 model.oct
AcceleradRT supports rpict command line arguments. Because AcceleradRT uses progressive rendering, it will ignore any -aa or -ad parameters it receives. Additional parameters for specifying the false color scale and visual comfort indicators are summarized below:
|-f||Set whether to use the false color scale. Setting -f+ enables the false color scale, while -f- enables true colors.|
|-s maximum||Set the color scale maximum to maximum. Set the value to zero to enable auto-selection.|
|-log decades||Set the number of logarithmic scale increments to decades. Set the value to zero to disable logarithmic scaling.|
|-base b||Set the base for the logarithmic color scale to b.|
|-mask minimum||Set the minimum value on the false color scale to minimum. Pixels below this value will not be shaded. Set the value to zero to disable masking.|
|-pe exposure||Set the exposure used for saving HDR image output to exposure.|
|-T x y angle||Set the task area used for task area luminance and glare calculations. The area will be a circle centered on (x, y) in screen space with an opening angle of angle radians. Set angle to zero when no task area is defined.|
0 0 0.0
|-C xh yh ah xl yl al||Set the regions to use for measuring contrast. The ratio will be taken between the high circle centered on (xh, yh) in screen space with an opening angle of ah radians and the low circle centered on (xl, yl) in screen space with an opening angle of al radians. Set ah and al to zero when no contrast regions are defined.|
0 0 0.0 0 0 0.0