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average_radiance.mi
declare shader
color "average_radiance" (
color "color" default 1 1 1 )
version 1
apply material
end declare
average_radiance.c
#include "shader.h"
#include "miaux.h"
DLLEXPORT
int average_radiance_version(void) { return 1; }
struct average_radiance {
miColor color;
};
DLLEXPORT
miBoolean average_radiance (
miColor *result, miState *state, struct average_radiance *params )
{
miColor *color = mi_eval_color(¶ms->color);
mi_compute_avg_radiance(result, state, 'f', NULL);
miaux_multiply_color(result, color);
return miTRUE;
}
average_radiance_util.c
void miaux_multiply_color(miColor *result, miColor *color)
{
result->r *= color->r;
result->g *= color->g;
result->b *= color->b;
}
22 April 2008 23:40:25