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Lighting updates:

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Added specular after texture.
Added Light properties: Negative, No Diffuse, No Specular, Quad, Quad2
This commit is contained in:
Kester Maddock
2004-06-07 11:01:31 +00:00
parent 7d840a256e
commit b468bf726c
12 changed files with 146 additions and 45 deletions
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40
source/gameengine/GamePlayer/common/GPC_RenderTools.cpp
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@@ -52,6 +52,7 @@
#include "RAS_IRasterizer.h"
#include "RAS_LightObject.h"
#include "RAS_ICanvas.h"
#include "RAS_GLExtensionManager.h"
// next two includes/dependencies come from the shadow feature
// it needs the gameobject and the sumo physics scene for a raycast
@@ -153,6 +154,15 @@ int GPC_RenderTools::ProcessLighting(int layer)
return result;
}
void GPC_RenderTools::EnableOpenGLLights()
{
glEnable(GL_LIGHTING);
glColorMaterial(GL_FRONT_AND_BACK,GL_DIFFUSE);
glEnable(GL_COLOR_MATERIAL);
glEnableClientState(GL_NORMAL_ARRAY);
if (bgl::QueryExtension(bgl::_GL_EXT_separate_specular_color) || bgl::QueryVersion(1, 2))
glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
}
void GPC_RenderTools::RenderText2D(RAS_TEXT_RENDER_MODE mode,
const char* text,
@@ -368,9 +378,9 @@ int GPC_RenderTools::applyLights(int objectlayer)
glLightfv((GLenum)(GL_LIGHT0+count), GL_POSITION, vec);
glLightf((GLenum)(GL_LIGHT0+count), GL_CONSTANT_ATTENUATION, 1.0);
glLightf((GLenum)(GL_LIGHT0+count), GL_LINEAR_ATTENUATION, lightdata->m_att1/lightdata->m_distance);
// without this next line it looks backward compatible.
//attennuation still is acceptable
// glLightf((GLenum)(GL_LIGHT0+count), GL_QUADRATIC_ATTENUATION, la->att2/(la->dist*la->dist));
// without this next line it looks backward compatible.
//attennuation still is acceptable
glLightf((GLenum)(GL_LIGHT0+count), GL_QUADRATIC_ATTENUATION, lightdata->m_att2/(lightdata->m_distance*lightdata->m_distance));
if(lightdata->m_type==RAS_LightObject::LIGHT_SPOT) {
vec[0] = -(*(lightdata->m_worldmatrix))(0,2);
@@ -386,11 +396,25 @@ int GPC_RenderTools::applyLights(int objectlayer)
else glLightf((GLenum)(GL_LIGHT0+count), GL_SPOT_CUTOFF, 180.0);
}
vec[0]= lightdata->m_energy*lightdata->m_red;
vec[1]= lightdata->m_energy*lightdata->m_green;
vec[2]= lightdata->m_energy*lightdata->m_blue;
vec[3]= 1.0;
glLightfv((GLenum)(GL_LIGHT0+count), GL_DIFFUSE, vec);
if (lightdata->m_nodiffuse)
{
vec[0] = vec[1] = vec[2] = vec[3] = 0.0;
} else {
vec[0]= lightdata->m_energy*lightdata->m_red;
vec[1]= lightdata->m_energy*lightdata->m_green;
vec[2]= lightdata->m_energy*lightdata->m_blue;
vec[3]= 1.0;
}
glLightfv((GLenum)(GL_LIGHT0+count), GL_DIFFUSE, vec);
if (lightdata->m_nospecular)
{
vec[0] = vec[1] = vec[2] = vec[3] = 0.0;
} else if (lightdata->m_nodiffuse) {
vec[0]= lightdata->m_energy*lightdata->m_red;
vec[1]= lightdata->m_energy*lightdata->m_green;
vec[2]= lightdata->m_energy*lightdata->m_blue;
vec[3]= 1.0;
}
glLightfv((GLenum)(GL_LIGHT0+count), GL_SPECULAR, vec);
glEnable((GLenum)(GL_LIGHT0+count));