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Specular calculations for deferred lighting in progress

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Have integrated the position of the directional light in the scene graph (imported from fbx) with the forward renderer and deferred lighting renderer's directional light angle

--HG--
extra : convert_revision : svn%3A7752d6cf-9f14-4ad2-affc-04f1e67b81a5/trunk%4048
This commit is contained in:
kearwood
2012-04-19 23:39:32 +00:00
parent 2ead2995d5
commit 21762174bf
14 changed files with 148 additions and 17 deletions
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17
KREngine/KREngine/Classes/KRDirectionalLight.cpp
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@@ -11,6 +11,7 @@
#import "KRDirectionalLight.h"
#import "KRShader.h"
#import "KRContext.h"
#import "KRMat4.h"
KRDirectionalLight::KRDirectionalLight(std::string name) : KRLight(name)
{
@@ -26,6 +27,17 @@ std::string KRDirectionalLight::getElementName() {
return "directional_light";
}
KRVector3 KRDirectionalLight::getLightDirection() {
KRVector3 world_rotation = getWorldRotation();
KRVector3 light_rotation = KRVector3(0.0, -1.0, 0.0);
KRMat4 m;
m.rotate(world_rotation.x, X_AXIS);
m.rotate(world_rotation.y, Y_AXIS);
m.rotate(world_rotation.z, Z_AXIS);
KRVector3 light_direction = m.dot(light_rotation);
return light_direction;
}
#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) {
@@ -40,9 +52,12 @@ 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();
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, lightDirection, pShadowMatrices, shadowDepthTextures, 0, gBufferPass);
pShader->bind(pCamera, matModelToView, mvpmatrix, cameraPosition, light_direction, pShadowMatrices, shadowDepthTextures, 0, gBufferPass);
// Render a full screen quad