render_value()

float animartrix_detail::ANIMartRIX::render_value ( render_parameters & animation )

inline

Definition at line 346 of file animartrix_detail.hpp.

                                                     {
 
        // convert polar coordinates back to cartesian ones
 
        float newx = (animation.offset_x + animation.center_x -
                      (cosf(animation.angle) * animation.dist)) *
                     animation.scale_x;
        float newy = (animation.offset_y + animation.center_y -
                      (sinf(animation.angle) * animation.dist)) *
                     animation.scale_y;
        float newz = (animation.offset_z + animation.z) * animation.scale_z;
 
        // render noisevalue at this new cartesian point
 
        float raw_noise_field_value = pnoise(newx, newy, newz);
 
        // A) enhance histogram (improve contrast) by setting the black and
        // white point (low & high_limit) B) scale the result to a 0-255 range
        // (assuming you want 8 bit color depth per rgb chanel) Here happens the
        // contrast boosting & the brightness mapping
 
        if (raw_noise_field_value < animation.low_limit)
            raw_noise_field_value = animation.low_limit;
        if (raw_noise_field_value > animation.high_limit)
            raw_noise_field_value = animation.high_limit;
 
        float scaled_noise_value =
            map_float(raw_noise_field_value, animation.low_limit,
                      animation.high_limit, 0, 255);
 
        return scaled_noise_value;
    }

References animation, map_float(), and pnoise().

Referenced by Big_Caleido(), Caleido1(), Caleido2(), Caleido3(), Center_Field(), Chasing_Spirals(), Complex_Kaleido(), Complex_Kaleido_2(), Complex_Kaleido_3(), Complex_Kaleido_4(), Complex_Kaleido_5(), Complex_Kaleido_6(), Distance_Experiment(), Hot_Blob(), Lava1(), Module_Experiment1(), Module_Experiment10(), Module_Experiment2(), Module_Experiment3(), Module_Experiment4(), Module_Experiment5(), Module_Experiment6(), Module_Experiment7(), Module_Experiment8(), Module_Experiment9(), Parametric_Water(), Polar_Waves(), RGB_Blobs(), RGB_Blobs2(), RGB_Blobs3(), RGB_Blobs4(), RGB_Blobs5(), Rings(), Rotating_Blob(), Scaledemo1(), Slow_Fade(), SM1(), SM10(), SM2(), SM3(), SM4(), SM5(), SM6(), SM8(), SM9(), Spiralus(), Spiralus2(), Water(), Waves(), Yves(), Zoom(), and Zoom2().

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