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View Full Version : SSAO and ShadowMapping issue



schmidi87
07-29-2015, 03:55 AM
Hello!

As I am new here, I'd like to first greet everyone and wish you all a nice day!
Even though I am new here, I am not only here to say hello, because I got quite into a predicament, I have a serious issue with SSAO and ShadowMapping and I would kindly ask for any help I can get.
Therefor, I'd like to get startet and will now post a couple of screenshots as well as some code, mostly of what I think is creating the issue at hand.

20112012

That is my current progress, and it should be pretty obvious, the shadow is completely wrong.
There are two obvious issues, first, it looks like a rectangle has been placed in the front and everthing behind it is now covered in shadow and the second, the shadows generated by the shadowmap are not beneith their objects anymore.
The shadows from the shadowmap look like the are flying and placed further to the back and generated multiple times..

So, I would like to start with the code, first, the initialization of my ssao.

void initSSAO()
{
ball->bindSSAOs();
plane->bindSSAOs();
item->bindSSAOs();
enemy->bindSSAOs();


//prepare GEOMETRY: fbo, depth and texture
{
geoPassShader->useShader();
geo_fbo = 0;
geo_depth = 0;
geo_texture = 0;
geo_normal = 0;
geo_posdepth = 0;

// Create the FBO
glGenFramebuffers(1, &geo_fbo);
glBindFramebuffer(GL_FRAMEBUFFER, geo_fbo);


// Create the textures - Position + linear depth color buffer
glGenTextures(1, &geo_posdepth);
glBindTexture(GL_TEXTURE_2D, geo_posdepth);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F, width, height, 0, GL_RGB, GL_FLOAT, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, geo_posdepth, 0);


// Create the textures - normal color buffer
glGenTextures(1, &geo_normal);
glBindTexture(GL_TEXTURE_2D, geo_normal);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_FLOAT, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1, GL_TEXTURE_2D, geo_normal, 0);

// Create the textures - Albedo color buffer
glGenTextures(1, &geo_texture);
glBindTexture(GL_TEXTURE_2D, geo_texture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGBA, GL_FLOAT, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT2, GL_TEXTURE_2D, geo_texture, 0);

// - Tell OpenGL which color attachments we'll use (of this framebuffer) for rendering
GLuint attachments[3] = { GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1, GL_COLOR_ATTACHMENT2 };
glDrawBuffers(3, attachments);




// Create the textures - depth buffer (renderbuffer)
glGenRenderbuffers(1, &geo_depth);
glBindRenderbuffer(GL_RENDERBUFFER, geo_depth);
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT, width, height);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, geo_depth);

if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
std::cout << "Framebufferstatus not ok" << std::endl;
system("PAUSE");
exit(EXIT_FAILURE);
}

// restore default FBO
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
//glUseProgram(0);
}

//prepare SSAO: fbo, texture
{
ssaoShader->useShader();
ssao_fbo = 0;
ssao_texture = 0;

// Create the FBO
glGenFramebuffers(1, &ssao_fbo);
glBindFramebuffer(GL_FRAMEBUFFER, ssao_fbo);

// Create the textures
glGenTextures(1, &ssao_texture);
glBindTexture(GL_TEXTURE_2D, ssao_texture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, width, height, 0, GL_RGB, GL_FLOAT, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, ssao_texture, 0);

if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
std::cout << "Framebufferstatus not ok" << std::endl;
system("PAUSE");
exit(EXIT_FAILURE);
}



// create KERNEL
for (int i = 0; i < KERNEL_SIZE; i++)
{
glm::vec3 tmp;
tmp.x = 2.0f * (float)rand() / RAND_MAX - 1.0f;
tmp.y = 2.0f * (float)rand() / RAND_MAX - 1.0f;
tmp.z = 2.0f * (float)rand() / RAND_MAX - 1.0f;

// Create a scale value between [0;1[ .
GLfloat scale = (GLfloat)i / (GLfloat)KERNEL_SIZE;

scale = (0.1f + (scale * scale)) * (1.0f - 0.1f);

tmp *= scale;

ssaoKernel.push_back(tmp);
}
//glUseProgram(0);
}

//prepare BLUR: fbo, texture
{
blurShader->useShader();
blur_fbo = 0;
blur_texture = 0;

// Create the FBO
glGenFramebuffers(1, &blur_fbo);
glBindFramebuffer(GL_FRAMEBUFFER, blur_fbo);

// Create the textures
glGenTextures(1, &blur_texture);
glBindTexture(GL_TEXTURE_2D, blur_texture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, width, height, 0, GL_RGB, GL_FLOAT, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, blur_texture, 0);

if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
std::cout << "Framebufferstatus not ok" << std::endl;
system("PAUSE");
exit(EXIT_FAILURE);
}

}

// restore default FBO
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);


// Noise texture
{
std::vector<glm::vec3> ssaoNoise;
for (GLuint i = 0; i < 16; i++)
{
glm::vec3 tmp;
tmp.x = 2.0f * (float)rand() / RAND_MAX - 1.0f;
tmp.y = 2.0f * (float)rand() / RAND_MAX - 1.0f;
tmp.z = 2.0f * (float)rand() / RAND_MAX - 1.0f;

ssaoNoise.push_back(tmp);
}

glGenTextures(1, &noise_texture);
glBindTexture(GL_TEXTURE_2D, noise_texture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB16F, 4, 4, 0, GL_RGB, GL_FLOAT, &ssaoNoise[0]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
}

//glUseProgram(0);
}

--------------------------------------------------------------

Now the follow up code for the periodically called ssao execution

void ssaoExec()
{
glm::mat4 model;
vl = glm::lookAt(cameraPosition, glm::vec3(0, 0, 0), glm::vec3(0, 1, 0));
pl = glm::perspective(glm::radians(45.0f), 1.0f, 20.0f, 80.0f);

//------------GEOMETRY--------------
geoPassShader->useShader();

glBindFramebuffer(GL_FRAMEBUFFER, geo_fbo);

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

auto geo_proj = glGetUniformLocation(geoPassShader->programHandle, "projection");
glUniformMatrix4fv(geo_proj, 1, GL_FALSE, glm::value_ptr(pl));
auto geo_view = glGetUniformLocation(geoPassShader->programHandle, "view");
glUniformMatrix4fv(geo_view, 1, GL_FALSE, glm::value_ptr(vl));


//BALL
model = ball->modelMatrix;
auto wvp_ball_loc = glGetUniformLocation(geoPassShader->programHandle, "model");
glUniformMatrix4fv(wvp_ball_loc, 1, GL_FALSE, glm::value_ptr(model));

ball->draw();


//PLANE
model = plane->modelMatrix;
auto wvp_plane_loc = glGetUniformLocation(geoPassShader->programHandle, "model");
glUniformMatrix4fv(wvp_plane_loc, 1, GL_FALSE, glm::value_ptr(model));

plane->draw();


//ITEM
model = item->modelMatrix;
auto wvp_item_loc = glGetUniformLocation(geoPassShader->programHandle, "model");
glUniformMatrix4fv(wvp_item_loc, 1, GL_FALSE, glm::value_ptr(model));

item->draw();


//ENEMY
model = enemy->modelMatrix;
auto wvp_enemy_loc = glGetUniformLocation(geoPassShader->programHandle, "model");
glUniformMatrix4fv(wvp_enemy_loc, 1, GL_FALSE, glm::value_ptr(model));

enemy->draw();


glBindFramebuffer(GL_FRAMEBUFFER, 0);
//glUseProgram(0);



//------------SSAO--------------
ssaoShader->useShader();

glBindFramebuffer(GL_FRAMEBUFFER, ssao_fbo);

glClear(GL_COLOR_BUFFER_BIT);

glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, geo_posdepth);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, geo_normal);
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, noise_texture);


auto kernel_loc = glGetUniformLocation(ssaoShader->programHandle, "samples");
glUniform3fv(kernel_loc, KERNEL_SIZE, (const GLfloat*)&ssaoKernel[0]);


auto ssao_proj = glGetUniformLocation(ssaoShader->programHandle, "projection");
glUniformMatrix4fv(ssao_proj, 1, GL_FALSE, glm::value_ptr(pl));
renderQuad();

glBindFramebuffer(GL_FRAMEBUFFER, 0);


//-----------BLUR------------
blurShader->useShader();

glBindFramebuffer(GL_FRAMEBUFFER, blur_fbo);

glClear(GL_COLOR_BUFFER_BIT);

glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, ssao_texture);
renderQuad();


glBindFramebuffer(GL_FRAMEBUFFER, 0);
//glLoadName(-1);
}

----------------
Here is the code for the renderQuad():

GLuint quadVAO = 0;
GLuint quadVBO;
void renderQuad()
{
if (quadVAO == 0)
{
GLfloat quadVertices[] = {
// Positions // Texture Coords
-1.0f, 1.0f, 0.0f, -1.0f, 1.0f,
-1.0f, -1.0f, 0.0f, -1.0f, -1.0f,
1.0f, 1.0f, 0.0f, 1.0f, 1.0f,
1.0f, -1.0f, 0.0f, 1.0f, -1.0f,
};
// Setup plane VAO
glGenVertexArrays(1, &quadVAO);
glGenBuffers(1, &quadVBO);
glBindVertexArray(quadVAO);
glBindBuffer(GL_ARRAY_BUFFER, quadVBO);
glBufferData(GL_ARRAY_BUFFER, sizeof(quadVertices), &quadVertices, GL_STATIC_DRAW);
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(GLfloat), (GLvoid*)0);
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 5 * sizeof(GLfloat), (GLvoid*)(3 * sizeof(GLfloat)));
}
glBindVertexArray(quadVAO);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glBindVertexArray(0);
}

----------------------------------------------------

My Main.draw():

void draw(){

glm::mat4 l(0.5, 0.0, 0.0, 0.0,
0.0, 0.5, 0.0, 0.0,
0.0, 0.0, 0.5, 0.0,
0.5, 0.5, 0.5, 1.0
);

//set up View Frustum
/*if (vfc == 1){
ExtractFrustum();
}
glm::vec3 cen;
float rad;*/

shader->useShader();

auto spotLight_Loc = glGetUniformLocation(shader->programHandle, "spotlightPosition");
glUniform4fv(spotLight_Loc, 1, glm::value_ptr(spot));

/*auto view_loc = glGetUniformLocation(shader->programHandle, "viewMatrix");
glUniformMatrix4fv(view_loc, 1, GL_FALSE, glm::value_ptr(item->modelMatrix));*/

auto tex_loc = glGetUniformLocation(shader->programHandle, "shadowMap");
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, zbufferTex);
glUniform1i(tex_loc, 1);

//----------SSAO------------
auto screenSize_loc = glGetUniformLocation(shader->programHandle, "screenSize");
glUniform2f(screenSize_loc, (float)width, (float)height);

auto aoTexture_loc = glGetUniformLocation(shader->programHandle, "gAOMap");
glActiveTexture(GL_TEXTURE3);
glBindTexture(GL_TEXTURE_2D, blur_texture);
glUniform1i(aoTexture_loc, 3);
//renderQuad();
//-------------------------



m_vl_pl_l_matrix = l*pl*vl*ball->modelMatrix;
auto mvpl_ball_loc = glGetUniformLocation(shader->programHandle, "mvlpllMatrix");
glUniformMatrix4fv(mvpl_ball_loc, 1, GL_FALSE, glm::value_ptr(m_vl_pl_l_matrix));

ball->draw(proj, view);


m_vl_pl_l_matrix = l*pl*vl*plane->modelMatrix;
auto mvpl_plane_loc = glGetUniformLocation(shader->programHandle, "mvlpllMatrix");
glUniformMatrix4fv(mvpl_plane_loc, 1, GL_FALSE, glm::value_ptr(m_vl_pl_l_matrix));

plane->draw(proj, view);


/*item->bSphere(cen, rad); //check view frustum
glm::vec4 tmp = glm::vec4(cen, 1);
tmp = item->modelMatrix * tmp;
if (vfc == 0 || SphereInFrustum(glm::vec3(tmp), rad)){*/
m_vl_pl_l_matrix = l*pl*vl*item->modelMatrix;
auto mvpl_item_loc = glGetUniformLocation(shader->programHandle, "mvlpllMatrix");
glUniformMatrix4fv(mvpl_item_loc, 1, GL_FALSE, glm::value_ptr(m_vl_pl_l_matrix));

item->draw(proj, view);
//}

if (transparent == 1){
auto transparent_loc = glGetUniformLocation(shader->programHandle, "transparent");
glUniform1i(transparent_loc, 1);

glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_CULL_FACE);

}

/*enemy->bSphere(cen, rad); //check view frustum
tmp = glm::vec4(cen, 1);
tmp = enemy->modelMatrix * tmp;
if (vfc == 0 || SphereInFrustum(glm::vec3(tmp), rad)){*/
m_vl_pl_l_matrix = l*pl*vl*enemy->modelMatrix;
auto mvpl_enemy_loc = glGetUniformLocation(shader->programHandle, "mvlpllMatrix");
glUniformMatrix4fv(mvpl_enemy_loc, 1, GL_FALSE, glm::value_ptr(m_vl_pl_l_matrix));

enemy->draw(proj, view);
//}

if (transparent == 1){

glDisable(GL_BLEND);
glEnable(GL_CULL_FACE);

}
glUseProgram(0);
}

-------------------------------------------

The way I handle the geometry shader for my objects, I had to comment out the "normal", if I don't the whole scene turns into one ball in the center of the screen, the size of triple of the ball on the playing field.

void Mesh::depthProgramHandle(Shader* depthShader, bool isSSAO)
{
//glGenVertexArrays(1, &vao);
glBindVertexArray(vao);

depthShader->useShader();

//texID = glGetUniformLocation(depthShader->programHandle, "texture_color");


glBindBuffer(GL_ARRAY_BUFFER, positionBuffer);
GLint positionIndex = glGetAttribLocation(depthShader->programHandle, "position");
glEnableVertexAttribArray(positionIndex);
glVertexAttribPointer(positionIndex, 3, GL_FLOAT, GL_FALSE, 0, 0);


if (isSSAO)
{
/*glBindBuffer(GL_ARRAY_BUFFER, normalsBuffer);
normalIndex = glGetAttribLocation(depthShader->programHandle, "normal");
if (normalIndex != -1){
glEnableVertexAttribArray(normalIndex);
glVertexAttribPointer(normalIndex, 3, GL_FLOAT, GL_FALSE, 0, 0);
}*/

glBindBuffer(GL_ARRAY_BUFFER, uvBuffer);
uvIndex = glGetAttribLocation(depthShader->programHandle, "texCoords");
if (uvIndex != -1){
glEnableVertexAttribArray(uvIndex);
glVertexAttribPointer(uvIndex, 2, GL_FLOAT, GL_FALSE, 0, 0);
}
}



glBindVertexArray(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
}

As well as the object.draw() used in the ssaoExec():

void Mesh::draw()
{
glBindVertexArray(vao);

glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, texture);

glDrawArrays(GL_TRIANGLES, 0, indices.size());

glBindVertexArray(0);
}


Shaders in the next post...

schmidi87
07-29-2015, 04:00 AM
Following up with the shaders:
The geometry VS and FS

#version 330

layout (location = 0) in vec3 position;
layout (location = 1) in vec3 normal;
layout (location = 2) in vec2 texCoords;

out vec3 FragPos;
out vec2 TexCoords;
out vec3 Normal;

uniform mat4 model;
uniform mat4 view;
uniform mat4 projection;

void main()
{
vec4 viewPos = view * model * vec4(position, 1.0f);
FragPos = viewPos.xyz;
gl_Position = projection * viewPos;
TexCoords = texCoords;

mat3 normalMatrix = transpose(inverse(mat3(view * model)));
Normal = normalMatrix * normal;
}
//FS-------------------------------------------------------------------

#version 330

layout (location = 0) out vec4 gPositionDepth;
layout (location = 1) out vec3 gNormal;
layout (location = 2) out vec4 gAlbedoSpec;

in vec2 TexCoords;
in vec3 FragPos;
in vec3 Normal;

const float NEAR = 0.1; // Projection matrix's near plane distance
const float FAR = 50.0f; // Projection matrix's far plane distance
float LinearizeDepth(float depth)
{
float z = depth * 2.0 - 1.0; // Back to NDC
return (2.0 * NEAR * FAR) / (FAR + NEAR - z * (FAR - NEAR));
}

void main()
{
// Store the fragment position vector in the first gbuffer texture
gPositionDepth.xyz = FragPos;
// And store linear depth into gPositionDepth's alpha component
gPositionDepth.a = LinearizeDepth(gl_FragCoord.z); // Divide by FAR if you need to store depth in range 0.0 - 1.0 (if not using floating point colorbuffer)
// Also store the per-fragment normals into the gbuffer
gNormal = normalize(Normal);
// And the diffuse per-fragment color
gAlbedoSpec.rgb = vec3(0.95); // Currently all objects have constant albedo color
}

SSAO VS and FS

#version 330

layout (location = 0) in vec3 position;
layout (location = 1) in vec2 texCoords;

out vec2 TexCoords;

void main()
{
gl_Position = vec4(position, 1.0f);
TexCoords = texCoords;
}
//FS-----------------------------------------------------

#version 330

out float FragColor;
in vec2 TexCoords;

uniform sampler2D gPositionDepth;
uniform sampler2D gNormal;
uniform sampler2D texNoise;

uniform vec3 samples[64];

// parameters (you'd probably want to use them as uniforms to more easily tweak the effect)
int kernelSize = 64;
float radius = 1.0;

// tile noise texture over screen based on screen dimensions divided by noise size
const vec2 noiseScale = vec2(800.0f/4.0f, 600.0f/4.0f);

uniform mat4 projection;

void main()
{
// Get input for SSAO algorithm
vec3 fragPos = texture(gPositionDepth, TexCoords).xyz;
vec3 normal = texture(gNormal, TexCoords).rgb;
vec3 randomVec = texture(texNoise, TexCoords * noiseScale).xyz;
// Create TBN change-of-basis matrix: from tangent-space to view-space
vec3 tangent = normalize(randomVec - normal * dot(randomVec, normal));
vec3 bitangent = cross(normal, tangent);
mat3 TBN = mat3(tangent, bitangent, normal);
// Iterate over the sample kernel and calculate occlusion factor
float occlusion = 0.0;
for(int i = 0; i < kernelSize; ++i)
{
// get sample position
vec3 sample = TBN * samples[i]; // From tangent to view-space
sample = fragPos + sample * radius;

// project sample position (to sample texture) (to get position on screen/texture)
vec4 offset = vec4(sample, 1.0);
offset = projection * offset; // from view to clip-space
offset.xyz /= offset.w; // perspective divide
offset.xyz = offset.xyz * 0.5 + 0.5; // transform to range 0.0 - 1.0

// get sample depth
float sampleDepth = -texture(gPositionDepth, offset.xy).w; // Get depth value of kernel sample

// range check & accumulate
float rangeCheck = smoothstep(0.0, 1.0, radius / abs(fragPos.z - sampleDepth ));
occlusion += (sampleDepth >= sample.z ? 1.0 : 0.0) * rangeCheck;
}
occlusion = 1.0 - (occlusion / kernelSize);

FragColor = occlusion;
}

Blur VS and FS

#version 330

layout (location = 0) in vec3 position;
layout (location = 1) in vec2 texCoords;

out vec2 TexCoords;

void main()
{
gl_Position = vec4(position, 1.0f);
TexCoords = texCoords;
}
//FS---------------------------------------------------------------------------

#version 330

in vec2 TexCoords;

out float fragColor;

uniform sampler2D ssaoInput;
const int blurSize = 4; // use size of noise texture (4x4)

void main()
{
vec2 texelSize = 1.0 / vec2(textureSize(ssaoInput, 0));
float result = 0.0;
for (int x = 0; x < blurSize; ++x)
{
for (int y = 0; y < blurSize; ++y)
{
vec2 offset = (vec2(-2.0) + vec2(float(x), float(y))) * texelSize;
result += texture(ssaoInput, TexCoords + offset).r;
}
}

fragColor = result / float(blurSize * blurSize);
}

LightShader VS and FS

#version 330 core

in vec3 position;
in vec3 normal;
in vec2 uv;

uniform vec3 lightPosition;

uniform mat4 mvpMatrix;
uniform mat4 mvMatrix;
uniform mat3 normalMatrix;
uniform mat4 mvlpllMatrix;
uniform mat4 viewMatrix;
uniform vec4 spotlightPosition;

smooth out vec3 varyingNormal;
smooth out vec3 varyingLightDir;
smooth out vec3 varyingSpotlightDirection;
smooth out vec2 uv_varyings;
out vec4 smCoords;
out vec4 ecPos;



void main(){

varyingNormal = normalMatrix * normal;

ecPos = mvMatrix * vec4(position, 1.0);

varyingLightDir = vec3(lightPosition - ecPos.xyz);
//varyingSpotlightDirection = vec3((viewMatrix*spotlightPosition).xyz- ecPos.xyz);
varyingSpotlightDirection = vec3((viewMatrix*vec4(position,1)).xyz - spotlightPosition.xyz);
varyingSpotlightDirection = normalize(varyingSpotlightDirection);
gl_Position = mvpMatrix * vec4(position, 1.0);
smCoords = mvlpllMatrix * vec4(position, 1.0);
uv_varyings = uv;
}
//FS---------------------------------------------------------------------------------------------------------------

#version 330 core

layout(location = 0) out vec4 fragColor;

uniform vec4 ambientColor;
uniform vec4 diffuseColor;

uniform vec4 ambientSpot;
uniform vec4 diffuseSpot;
//texture
uniform sampler2D texture_color;
uniform sampler2DShadow shadowMap;

in vec3 varyingNormal;
in vec3 varyingLightDir;
in vec2 uv_varyings;
in vec4 smCoords;

//SSAO
uniform vec2 screenSize;
uniform sampler2D gAOMap;

//spotlight
in vec3 varyingSpotlightDirection;
uniform vec3 spotLightdirection;
in vec4 ecPos;

uniform int transparent;

vec2 CalcScreenTexCoord()
{
return gl_FragCoord.xy / screenSize;
}

void main()
{
float shadowMult = textureProj(shadowMap, smCoords);

float diff = shadowMult * max(0.0, dot(normalize(varyingNormal), normalize(varyingLightDir)));
vec4 lightColor = diff * diffuseColor;

//Spotlight

float dist = length(normalize(varyingSpotlightDirection));
float NdotL = max(dot(normalize(varyingNormal), normalize(-varyingSpotlightDirection)), 0.0);


float spotEffect = dot(normalize(spotLightdirection), normalize(varyingSpotlightDirection));
float cosTheta = cos(radians(1.0)); //inner cone
float cosPhi = cos(radians(3.0)); //outer cone

vec4 color = vec4(0, 0.0, 0.0, 1.0);

if (spotEffect > cosTheta)
{

if(NdotL > 0.0)
{
color += diffuseSpot * diffuseColor * NdotL;

vec3 E = normalize(ecPos.xyz);
vec3 R = reflect(-varyingSpotlightDirection, varyingNormal);

float specular = pow( max(dot(R, E), 0.0), 128 );

color += specular;
}
}
else if( spotEffect > cosPhi )
{
float falloff = (spotEffect - cosPhi) / (cosTheta - cosPhi);


if(NdotL > 0.0)
{
color += diffuseSpot * diffuseColor * NdotL * falloff;

vec3 E = normalize(ecPos.xyz);
vec3 R = reflect(-varyingSpotlightDirection, varyingNormal);

float specular = pow( max(dot(R, E), 0.0), 128 );

color += specular * falloff;
}
}
lightColor += color;

//if(shadowMult == 1){


//SSAO
float AmbientOcclusion = texture(gAOMap, uv_varyings).r;
vec4 ambient = vec4(0.3 * AmbientOcclusion); // <-- this is where we use ambient occlusion
lightColor += ambient;

lightColor += ambientColor * texture(texture_color, uv_varyings.xy);


vec3 reflection = normalize(reflect(-normalize(varyingLightDir), normalize(varyingNormal)));
float spec = max(0.0, dot(normalize(varyingNormal), reflection));

if(diff!=0){
float fspec = pow(spec, 264.0);
lightColor.rgb += vec3(fspec, fspec, fspec);
}

fragColor += lightColor;

/*}
else{

fragColor += lightColor;
fragColor *= texture(texture_color, uv_varyings.xy);
*/

if(transparent == 1){
fragColor.a = 0.3;
}

}

I also used CodeXL to check the out the textures generated by the geometry part of my ssao, while geo_posdepth and geo_texture seem fine, geo_normal stays completely white, where the playing field should be.
And it seems to not really matter if the normals are included in the deptProgramHandle(...) in my object (mesh), because it stays white, but at least commented out it doesn't turn everything into one ball..
Another issue, the geo_depth renderbuffer is but a black screen.

2017201820192020

I really hope for whatever help I can get, thank you very much!

Greets schmidi87