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C-/C++-Quelltext

glGenFramebuffers(1, &framebufferHandle);
glBindFramebuffer(GL_FRAMEBUFFER, framebufferHandle);

// pos, normal, color
// ...


// depth
glGenTextures(1, &depthTextureHandle);
glBindTexture(GL_TEXTURE_2D, depthTextureHandle);
        
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_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);

glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT32, windowWidth, windowHeight, 0, GL_DEPTH_COMPONENT, GL_FLOAT, 0);

// ...

//set attachments
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, positionTextureHandle, 0);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1, GL_TEXTURE_2D, normalTextureHandle, 0);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT2, GL_TEXTURE_2D, colorTextureHandle, 0);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT,  GL_TEXTURE_2D, depthTextureHandle, 0);

/set the list of draw buffers.
GLenum drawBufferHandles[3] = {GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1, GL_COLOR_ATTACHMENT2};
glDrawBuffers(3, drawBufferHandles);

HLSL-Quelltext

layout(location = 0) out vec4 positionOutput;
layout(location = 1) out vec3 normalOutput;
layout(location = 2) out vec4 colorOutput;
 
void main(){
    positionOutput = pass_Position;
    normalOutput = normalize(pass_Normal);

    colorOutput = texture(tex,pass_TexCoord);
}

HLSL-Quelltext

in vec2 passUV;

uniform sampler2D positionMap;
uniform sampler2D normalMap;
uniform sampler2D colorMap;
uniform sampler2D depthMap;

out vec4 fragmentColor;

void main() {
    vec4 position = texture(positionMap, passUV);
    vec4 normal = texture(normalMap, passUV);
    vec4 color = texture(colorMap, passUV);

    float depth = texture(depthMap, passUV).x;
  
    

    fragmentColor = vec4(depth,depth,depth,1);
}