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Point lights now fully functional with deferred lighting

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--HG--
extra : convert_revision : svn%3A7752d6cf-9f14-4ad2-affc-04f1e67b81a5/trunk%4054
This commit is contained in:
kearwood
2012-04-26 09:06:45 +00:00
parent 167a18f3a7
commit 0594bc0953
25 changed files with 541 additions and 53 deletions
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47
KREngine/KREngine/Classes/KRDirectionalLight.cpp
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@@ -27,8 +27,8 @@ std::string KRDirectionalLight::getElementName() {
return "directional_light";
}
KRVector3 KRDirectionalLight::getLightDirection() {
KRVector3 world_rotation = getWorldRotation();
KRVector3 KRDirectionalLight::getWorldLightDirection() {
KRVector3 world_rotation = getLocalRotation();
KRVector3 light_rotation = KRVector3(0.0, 0.0, 1.0);
KRMat4 m;
m.rotate(world_rotation.x, X_AXIS);
@@ -38,6 +38,10 @@ KRVector3 KRDirectionalLight::getLightDirection() {
return light_direction;
}
KRVector3 KRDirectionalLight::getLocalLightDirection() {
return KRVector3(0.0, 0.0, 1.0);
}
#if TARGET_OS_IPHONE
void KRDirectionalLight::render(KRCamera *pCamera, KRContext *pContext, KRBoundingVolume &frustrumVolume, bool bRenderShadowMap, KRMat4 &viewMatrix, KRVector3 &cameraPosition, KRVector3 &lightDirection, KRMat4 *pShadowMatrices, GLuint *shadowDepthTextures, int cShadowBuffers, int gBufferPass) {
@@ -52,19 +56,39 @@ void KRDirectionalLight::render(KRCamera *pCamera, KRContext *pContext, KRBoundi
matModelToView.transpose();
matModelToView.invert();
KRVector3 light_direction = getLightDirection();
light_direction = matModelToView.dot(light_direction);
light_direction.normalize();
KRVector3 light_direction_view_space = getWorldLightDirection();
light_direction_view_space = matModelToView.dot(light_direction_view_space);
light_direction_view_space.normalize();
KRShader *pShader = pContext->getShaderManager()->getShader("light_directional", pCamera, false, false, false, 0, false, false, false, false, false, false, false, gBufferPass);
pShader->bind(pCamera, matModelToView, mvpmatrix, cameraPosition, light_direction, pShadowMatrices, shadowDepthTextures, 0, gBufferPass);
pShader->bind(pCamera, matModelToView, mvpmatrix, cameraPosition, lightDirection, pShadowMatrices, shadowDepthTextures, 0, gBufferPass);
glUniform3f(
pShader->m_uniforms[KRShader::KRENGINE_UNIFORM_LIGHT_COLOR],
m_color.x * m_intensity / 100.0f,
m_color.y * m_intensity / 100.0f,
m_color.z * m_intensity / 100.0f
pShader->m_uniforms[KRShader::KRENGINE_UNIFORM_LIGHT_DIRECTION_VIEW_SPACE],
light_direction_view_space.x,
light_direction_view_space.y,
light_direction_view_space.z
);
glUniform3f(
pShader->m_uniforms[KRShader::KRENGINE_UNIFORM_LIGHT_COLOR],
m_color.x,
m_color.y,
m_color.z
);
glUniform1f(
pShader->m_uniforms[KRShader::KRENGINE_UNIFORM_LIGHT_INTENSITY],
m_intensity / 100.0f
);
// Disable z-buffer write
glDepthMask(GL_FALSE);
// Disable z-buffer test
glDisable(GL_DEPTH_TEST);
// Render a full screen quad
static const GLfloat squareVertices[] = {
-1.0f, -1.0f,
@@ -73,9 +97,6 @@ void KRDirectionalLight::render(KRCamera *pCamera, KRContext *pContext, KRBoundi
1.0f, 1.0f,
};
// Disable z-buffer test
glDisable(GL_DEPTH_TEST);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glVertexAttribPointer(KRShader::KRENGINE_ATTRIB_VERTEX, 2, GL_FLOAT, 0, 0, squareVertices);
glEnableVertexAttribArray(KRShader::KRENGINE_ATTRIB_VERTEX);