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added some debug variable and print statements to investigate polylight behavior

This commit is contained in:
Asad M. Zaman 2004-09-11 00:25:28 +00:00
parent ab99a40f51
commit 10cc2dd9a9
4 changed files with 23 additions and 11 deletions
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4
panda/src/pgraph/config_pgraph.cxx
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@ -127,6 +127,10 @@ const bool paranoid_compose = config_pgraph.GetBool("paranoid-compose", false);
// by matrix.
const bool compose_componentwise = config_pgraph.GetBool("compose-componentwise", true);
// Set this true to view some info statements regarding the polylight
// It is helpful for debugging
const bool polylight_info = config_pgraph.GetBool("polylight-info", false);
// Set this false to disable TransparencyAttrib::M_dual altogether
// (and use M_alpha in its place).
const bool m_dual = config_pgraph.GetBool("m-dual", true);

2
panda/src/pgraph/config_pgraph.h
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@ -36,6 +36,8 @@ extern const bool allow_unrelated_wrt;
extern const bool paranoid_compose;
extern const bool compose_componentwise;
extern const bool polylight_info;
extern const bool m_dual;
extern const bool m_dual_opaque;
extern const bool m_dual_transparent;

22
panda/src/pgraph/polylightEffect.cxx
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@ -156,10 +156,13 @@ do_poly_light(const CullTraverserData *data, const TransformState *node_transfor
}
if (dist <= light_radius) { // If node is in range of this light
pgraph_cat.debug() << "light's position = " << light->get_pos() << endl;
pgraph_cat.debug() << "relative position = " << point << endl;
pgraph_cat.debug() << "effect center = " << _effect_center << endl;
pgraph_cat.debug() << "close to this light = " << light->get_name() << endl;
if (polylight_info) {
pgraph_cat.info() << "light's position = " << light->get_pos() << endl;
pgraph_cat.info() << "relative position = " << point << endl;
pgraph_cat.info() << "effect center = " << _effect_center << endl;
//pgraph_cat.info() << "close to this light = " << light->get_name() << endl;
pgraph_cat.info() << "dist = " << dist << ";radius = " << light_radius << endl;
}
PolylightNode::Attenuation_Type light_attenuation = light->get_attenuation();
Colorf light_color;
@ -189,16 +192,16 @@ do_poly_light(const CullTraverserData *data, const TransformState *node_transfor
light_scale = 1.0;
}
pgraph_cat.debug() << "dist = " << dist << ";radius = " << light_radius << endl;
// Keep accumulating each lights contribution...
// we have to prevent color snap, so factor in the weight.
// weight becomes negligent as you are closer to the light
// and opposite otherwise
weight_scale = _weight * (1.0 - light_scale);
pgraph_cat.debug() << "weight_scale = " << weight_scale
<< "; light_scale " << light_scale << endl;
if (polylight_info) {
pgraph_cat.debug() << "weight_scale = " << weight_scale
<< "; light_scale " << light_scale << endl;
}
Rcollect += light_color[0] * light_scale + weight_scale;
Gcollect += light_color[1] * light_scale + weight_scale;
@ -222,7 +225,8 @@ do_poly_light(const CullTraverserData *data, const TransformState *node_transfor
r = Rcollect / num_lights;
g = Gcollect / num_lights;
b = Bcollect / num_lights;
pgraph_cat.debug() << "r=" << r << "; g=" << g << "; b=" << b << endl;
if (polylight_info)
pgraph_cat.info() << "r=" << r << "; g=" << g << "; b=" << b << endl;
}
return ColorScaleAttrib::make(LVecBase4f(r, g, b, 1.0));

6
panda/src/pgraph/polylightNode.cxx
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@ -93,11 +93,13 @@ Colorf PolylightNode::flicker() const {
//srand((int)ClockObject::get_global_clock()->get_frame_time());
variation = (rand()%100); // a value between 0-99
variation /= 100.0;
pgraph_cat.debug() << "Random Variation: " << variation << endl;
if (polylight_info)
pgraph_cat.info() << "Random Variation: " << variation << endl;
} else if (_flicker_type == FSIN) {
double now = ClockObject::get_global_clock()->get_frame_time();
variation = sinf(now*_sin_freq);
pgraph_cat.debug() << "Variation: " << variation << endl;
if (polylight_info)
pgraph_cat.info() << "Variation: " << variation << endl;
// can't use negative variation, so make it positive
if (variation < 0.0)
variation *= -1.0;