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Code Issues 121 Wiki Activity

maintenance: opengl and generic gfx class source files split

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This commit is contained in:
tmj-fstate
2019-10-14 21:59:01 +02:00
parent 53a176de2f
commit 59df08dbee
28 changed files with 5350 additions and 5178 deletions
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44
opengllight.cpp Normal file
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/*
This Source Code Form is subject to the
terms of the Mozilla Public License, v.
2.0. If a copy of the MPL was not
distributed with this file, You can
obtain one at
http://mozilla.org/MPL/2.0/.
*/
#include "stdafx.h"
#include "opengllight.h"
void
opengl_light::apply_intensity( float const Factor ) {
if( Factor == 1.f ) {
::glLightfv( id, GL_AMBIENT, glm::value_ptr( ambient ) );
::glLightfv( id, GL_DIFFUSE, glm::value_ptr( diffuse ) );
::glLightfv( id, GL_SPECULAR, glm::value_ptr( specular ) );
}
else {
auto const factor{ clamp( Factor, 0.05f, 1.f ) };
// temporary light scaling mechanics (ultimately this work will be left to the shaders
glm::vec4 scaledambient( ambient.r * factor, ambient.g * factor, ambient.b * factor, ambient.a );
glm::vec4 scaleddiffuse( diffuse.r * factor, diffuse.g * factor, diffuse.b * factor, diffuse.a );
glm::vec4 scaledspecular( specular.r * factor, specular.g * factor, specular.b * factor, specular.a );
glLightfv( id, GL_AMBIENT, glm::value_ptr( scaledambient ) );
glLightfv( id, GL_DIFFUSE, glm::value_ptr( scaleddiffuse ) );
glLightfv( id, GL_SPECULAR, glm::value_ptr( scaledspecular ) );
}
}
void
opengl_light::apply_angle() {
::glLightfv( id, GL_POSITION, glm::value_ptr( glm::vec4{ position, ( is_directional ? 0.f : 1.f ) } ) );
if( false == is_directional ) {
::glLightfv( id, GL_SPOT_DIRECTION, glm::value_ptr( direction ) );
}
}
//---------------------------------------------------------------------------