cyberarm/i-mic-fps
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Framebuffer rendering on quad is now working! 😂

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This commit is contained in:
Cyberarm
2020-03-25 13:06:40 -05:00
parent 87ae77a9cb
commit 15e5d0a5e1
6 changed files with 60 additions and 21 deletions
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36
lib/renderer/opengl_renderer.rb
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@@ -13,6 +13,7 @@ class IMICFPS
@g_buffer.bind_for_writing
gl_error?
glClearColor(0.0, 0.0, 0.0, 0.0)
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
Shader.use("default") do |shader|
@@ -47,9 +48,15 @@ class IMICFPS
@g_buffer.unbind_framebuffer
gl_error?
lighting(lights)
@g_buffer.bind_for_reading
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0)
# lighting(lights)
post_processing
render_framebuffer
@g_buffer.unbind_framebuffer
gl_error?
else
puts "Shader 'default' failed to compile, using immediate mode for rendering..." unless @@immediate_mode_warning
@@ -82,11 +89,24 @@ class IMICFPS
end
def lighting(lights)
@g_buffer.bind_for_reading
@g_buffer.set_read_buffer(:position)
glBlitFramebuffer(0, 0, @g_buffer.width, @g_buffer.height,
0, 0, @g_buffer.width / 2, @g_buffer.height / 2,
GL_COLOR_BUFFER_BIT, GL_LINEAR)
@g_buffer.set_read_buffer(:diffuse)
glBlitFramebuffer(0, 0, @g_buffer.width, @g_buffer.height,
0, 0, @g_buffer.width / 2, @g_buffer.height / 2,
0, @g_buffer.height / 2, @g_buffer.width / 2, @g_buffer.height,
GL_COLOR_BUFFER_BIT, GL_LINEAR)
@g_buffer.set_read_buffer(:normal)
glBlitFramebuffer(0, 0, @g_buffer.width, @g_buffer.height,
@g_buffer.width / 2, @g_buffer.height / 2, @g_buffer.width, @g_buffer.height,
GL_COLOR_BUFFER_BIT, GL_LINEAR)
@g_buffer.set_read_buffer(:texcoord)
glBlitFramebuffer(0, 0, @g_buffer.width, @g_buffer.height,
@g_buffer.width / 2, 0, @g_buffer.width, @g_buffer.height / 2,
GL_COLOR_BUFFER_BIT, GL_LINEAR)
end
@@ -99,10 +119,18 @@ class IMICFPS
glBindVertexArray(@g_buffer.screen_vbo)
glEnableVertexAttribArray(0)
glEnableVertexAttribArray(1)
glDisable(GL_DEPTH_TEST)
glEnable(GL_BLEND)
glActiveTexture(GL_TEXTURE0)
glBindTexture(GL_TEXTURE_2D, @g_buffer.texture(:diffuse))
glDrawArrays(GL_TRIANGLES, 0, @g_buffer.vertices.size)
glDisableVertexAttribArray(1)
glDisableVertexAttribArray(0)
glBindVertexArray(0)
end
end
end