faerbit/Saxum
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Now mirroring the cube face on their own again.

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Faerbit 2015-01-28 17:26:02 +01:00
parent 9154095d4d
commit 823528b75a
3 changed files with 35 additions and 9 deletions
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5
Shader/phong.fsh
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@ -71,8 +71,7 @@ float samplePointShadow(samplerCubeShadow shadowMap, vec3 lightDirection) {
float B = -2*(farPlane*nearPlane)/(farPlane - nearPlane);
float compValue = 0.5*(-A*length(lightDirection) + B)/length(lightDirection) + 0.5;
float bias = 0.005;
vec3 vector = vec3(-lightDirection.x, -lightDirection.y, lightDirection.z);
return texture(shadowMap, vec4(vector , compValue - bias));
return texture(shadowMap, vec4(lightDirection , compValue - bias));
}
float distanceToBorder(vec2 vector) {
@ -114,6 +113,8 @@ void main()
*specularFactor*intensity*lightColors[i];
visibility = samplePointShadow(shadowMap_cube, lightDirection);
}
/*float value = texture(shadowMap_cube, lightDirection);
oColor = vec4(value, value, value, 255);*/
}
// shadows

38
graphics.cc
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@ -74,6 +74,9 @@ void Graphics::init(Level* level) {
depthTexture_cube->setWrapT(GL_CLAMP_TO_EDGE);
depthTexture_cube->setCompareMode(GL_COMPARE_REF_TO_TEXTURE);
framebuffer_cube_mirror = SharedFrameBufferObject(new FrameBufferObject());
framebuffer_cube_mirror->setDepthTexture(depthTexture_cube);
saveDepthBufferBool = false;
}
@ -92,7 +95,7 @@ void Graphics::render(double time)
// render depth textures for point lights
glViewport(0, 0, cube_size, cube_size);
glm::mat4 depthProjectionMatrix_pointlights = glm::perspective(1.571f, (float)cube_size/(float)cube_size, 0.1f, farPlane);
glm::vec3 looking_directions[6] = {glm::vec3(-1.0f, 0.0f, 0.0f), glm::vec3(1.0f, 0.0f, 0.0f), glm::vec3(0.0001f, 1.0f, 0.0f),
glm::vec3 looking_directions[6] = {glm::vec3(1.0f, 0.0f, 0.0f), glm::vec3(-1.0f, 0.0f, 0.0f), glm::vec3(0.0001f, 1.0f, 0.0f),
glm::vec3(0.0001f, -1.0f, 0.0f), glm::vec3(0.0f, 0.0f, 1.0f), glm::vec3(0.0f, 0.0f, -1.0f)};
framebuffer_cube->bind();
@ -101,19 +104,29 @@ void Graphics::render(double time)
for (unsigned int i_pointlight = 0; i_pointlight<1 && i_pointlight<level->getLights()->size(); i_pointlight++) {
// render each side of the cube
for (int i_face = 0; i_face<6; i_face++) {
framebuffer_cube_mirror->bind();
glClear(GL_DEPTH_BUFFER_BIT);
framebuffer_cube->bind();
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_CUBE_MAP_POSITIVE_X + i_face, depth_cubeMaps.at(i_pointlight)->getObjectName(), 0);
glClear(GL_DEPTH_BUFFER_BIT);
glm::mat4 depthViewProjectionMatrix_face = depthProjectionMatrix_pointlights * glm::lookAt(level->getLights()->at(i_pointlight).getPosition(),
glm::mat4 viewMatrix = glm::lookAt(level->getLights()->at(i_pointlight).getPosition(),
level->getLights()->at(i_pointlight).getPosition() + looking_directions[i_face], glm::vec3(0.0f, 1.0f, 0.0f));
glm::mat4 depthViewProjectionMatrix_face = depthProjectionMatrix_pointlights * viewMatrix;
if (!printed) {
printf("\n\nView matrix:\n %2.2f, %2.2f, %2.2f, %2.2f\n%2.2f, %2.2f, %2.2f, %2.2f\n%2.2f, %2.2f, %2.2f, %2.2f\n%2.2f, %2.2f, %2.2f, %2.2f\n\n\n",
depthViewProjectionMatrix_face[0][0], depthViewProjectionMatrix_face[0][1], depthViewProjectionMatrix_face[0][2], depthViewProjectionMatrix_face[0][3],
depthViewProjectionMatrix_face[1][0], depthViewProjectionMatrix_face[1][1], depthViewProjectionMatrix_face[1][2], depthViewProjectionMatrix_face[1][3],
depthViewProjectionMatrix_face[2][0], depthViewProjectionMatrix_face[2][1], depthViewProjectionMatrix_face[2][2], depthViewProjectionMatrix_face[2][3],
depthViewProjectionMatrix_face[3][0], depthViewProjectionMatrix_face[3][1], depthViewProjectionMatrix_face[3][2], depthViewProjectionMatrix_face[3][3]
viewMatrix[0][0], viewMatrix[0][1], viewMatrix[0][2], viewMatrix[0][3],
viewMatrix[1][0], viewMatrix[1][1], viewMatrix[1][2], viewMatrix[1][3],
viewMatrix[2][0], viewMatrix[2][1], viewMatrix[2][2], viewMatrix[2][3],
viewMatrix[3][0], viewMatrix[3][1], viewMatrix[3][2], viewMatrix[3][3]
);
}
level->render(depthShader, false, &depthViewProjectionMatrix_face);
glBindFramebuffer(GL_READ_FRAMEBUFFER, framebuffer_cube->getObjectName());
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, framebuffer_cube_mirror->getObjectName());
glBlitFramebuffer(0, 0, cube_size, cube_size, cube_size, cube_size, 0, 0, GL_DEPTH_BUFFER_BIT, GL_NEAREST);
glBindFramebuffer(GL_READ_FRAMEBUFFER, framebuffer_cube_mirror->getObjectName());
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, framebuffer_cube->getObjectName());
glBlitFramebuffer(0, 0, cube_size, cube_size, 0, 0, cube_size, cube_size, GL_DEPTH_BUFFER_BIT, GL_NEAREST);
if (!framebuffer_cube->isFrameBufferObjectComplete()) {
printf("Framebuffer incomplete, unknown error occured during shadow generation!\n");
}
@ -238,8 +251,19 @@ glm::mat4 Graphics::buildViewMatrix(Level* level) {
//construct lookAt (cameraPosition = cameraCenter + cameraVector)
//return glm::lookAt(level->getCamera()->getPosition(), level->getCamera()->getPosition() + level->getCamera()->getDirection(), glm::vec3(0.0f, 1.0f, 0.0f));
return glm::lookAt((level->getCameraCenter()->getPosition() + level->getCamera()->getVector()),
glm::mat4 depthViewProjectionMatrix_face = glm::lookAt((level->getCameraCenter()->getPosition() + level->getCamera()->getVector()),
level->getCameraCenter()->getPosition(), glm::vec3(0.0f, 1.0f, 0.0f));
static int i = 5;
if (i == 0) {
printf("\n\nView matrix Camera:\n %2.2f, %2.2f, %2.2f, %2.2f\n%2.2f, %2.2f, %2.2f, %2.2f\n%2.2f, %2.2f, %2.2f, %2.2f\n%2.2f, %2.2f, %2.2f, %2.2f\n\n\n",
depthViewProjectionMatrix_face[0][0], depthViewProjectionMatrix_face[0][1], depthViewProjectionMatrix_face[0][2], depthViewProjectionMatrix_face[0][3],
depthViewProjectionMatrix_face[1][0], depthViewProjectionMatrix_face[1][1], depthViewProjectionMatrix_face[1][2], depthViewProjectionMatrix_face[1][3],
depthViewProjectionMatrix_face[2][0], depthViewProjectionMatrix_face[2][1], depthViewProjectionMatrix_face[2][2], depthViewProjectionMatrix_face[2][3],
depthViewProjectionMatrix_face[3][0], depthViewProjectionMatrix_face[3][1], depthViewProjectionMatrix_face[3][2], depthViewProjectionMatrix_face[3][3]
);
}
i--;
return depthViewProjectionMatrix_face;
}

1
graphics.hh
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@ -33,6 +33,7 @@ class Graphics {
ACGL::OpenGL::SharedFrameBufferObject framebuffer;
std::vector<ACGL::OpenGL::SharedTextureCubeMap> depth_cubeMaps;
ACGL::OpenGL::SharedFrameBufferObject framebuffer_cube;
ACGL::OpenGL::SharedFrameBufferObject framebuffer_cube_mirror;
ACGL::OpenGL::SharedTexture2D depthTexture_cube;
static const int cube_size;
Level* level;