Not many can claim 25 years on the Internet! Join us in celebrating this milestone. Learn more about our history, and thank you for being a part of our community!
Now that I have shadow maps working, I'd like to add in ambient occlusion. I have all of the code in place, and I try to draw a fullscreen quad, but it's like the shader isn't called. The code is at https://github.com/sjhalayka/opengl4_stlview_shadow_map
The relevant code is in main.cpp on line 342.
Any ideas?
@taby Try it:
glBindVertexArray(quad_vao);
glDisable(GL_CULL_FACE);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glEnable(GL_CULL_FACE);
Hi again, Andrey. I tried a few things, but I'm still stuck.
A reference SSAO code that works is at: https://github.com/sjhalayka/opengl4_stlview
Thanks for your time!
@taby Hi.
glutInitContextVersion(3, 3);
glutInitContextProfile(GLUT_COMPATIBILITY_PROFILE);
glutInitContextProfile(GLUT_CORE_PROFILE); // need for RenderDoc, but doesn't work
I will continue later.
taby said:
and I try to draw a fullscreen quad, but it's like the shader isn't called
ssao.fs.glsl:
void main(void)
{
// Get texture position from gl_FragCoord
vec2 P = gl_FragCoord.xy / textureSize(sNormalDepth, 0);
// ND = normal and depth
vec4 ND = textureLod(sNormalDepth, P, 0);
// Extract normal and depth
vec3 N = ND.xyz;
float my_depth = ND.w;
if(my_depth <= 1.0)
{
colour = textureLod(sColor, P, 0);
return;
}
colour = vec4(1.0f, 0.0, 0.0f, 1.0f);
}
you should simplify SSAO pixel shader to find problem. your shader called
Hi again Andrey,
Thanks for your help. Is there any chance that you could please upload your version of the code to a repository on GitHub?
