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STARK: A bit improved spot light type.

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This commit is contained in:
Paweł Kołodziejski 2021-04-04 11:36:12 +02:00
parent 2fb992ed4e
commit 3e2f5a3976
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GPG Key ID: 0BDADC9E74440FF7
1 changed files with 9 additions and 12 deletions
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21
engines/stark/gfx/opengl.cpp
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@ -121,6 +121,7 @@ void OpenGLDriver::setupLights(const LightEntryArray &lights) {
GLfloat lightDir[] = { 0.0f, 0.0f, -1.0f };
GLfloat cutoff = 180.0f;
GLfloat spotExp = 0.0f;
GLfloat l_attenuation = 0.0f;
GLfloat q_attenuation = 0.0f;
Math::Vector4d worldPosition;
@ -135,12 +136,6 @@ void OpenGLDriver::setupLights(const LightEntryArray &lights) {
Math::Vector3d eyeDirection = viewMatrixRot * worldDirection;
eyeDirection.normalize();
Math::Vector4d params;
params.x() = l->falloffNear;
params.y() = l->falloffFar;
params.z() = l->innerConeAngle.getCosine();
params.w() = l->outerConeAngle.getCosine();
glDisable(GL_LIGHT0 + i);
switch (l->type) {
case LightEntry::kPoint:
@ -167,13 +162,14 @@ void OpenGLDriver::setupLights(const LightEntryArray &lights) {
lightPos[0] = (GLfloat)eyePosition.x();
lightPos[1] = (GLfloat)eyePosition.y();
lightPos[2] = (GLfloat)eyePosition.z();
lightDir[0] = (GLfloat)eyeDirection.x();
lightDir[1] = (GLfloat)eyeDirection.y();
lightDir[2] = (GLfloat)eyeDirection.z();
lightDir[0] = -(GLfloat)eyeDirection.x();
lightDir[1] = -(GLfloat)eyeDirection.y();
lightDir[2] = -(GLfloat)eyeDirection.z();
// FIXME
q_attenuation = 1.0f;
spotExp = 1.0f;
cutoff = 180.f;
l_attenuation = 0.0000001f;
q_attenuation = 0.0000001f;
//spotExp = 0.0f;
//cutoff = (l->outerConeAngle.getDegrees() + l->innerConeAngle.getDegrees()) / 2.0f;
break;
case LightEntry::kAmbient:
ambientColor[0] = (GLfloat)l->color.x();
@ -190,6 +186,7 @@ void OpenGLDriver::setupLights(const LightEntryArray &lights) {
glLightfv(GL_LIGHT0 + i, GL_SPOT_DIRECTION, lightDir);
glLightf(GL_LIGHT0 + i, GL_SPOT_EXPONENT, spotExp);
glLightf(GL_LIGHT0 + i, GL_SPOT_CUTOFF, cutoff);
glLightf(GL_LIGHT0 + i, GL_LINEAR_ATTENUATION, l_attenuation);
glLightf(GL_LIGHT0 + i, GL_QUADRATIC_ATTENUATION, q_attenuation);
glEnable(GL_LIGHT0 + i);
}