Implement rendering pipeline and post-processing (#12465)

Co-authored-by: Lars Mueller <appgurulars@gmx.de>
Co-authored-by: sfan5 <sfan5@live.de>
Co-authored-by: lhofhansl <lhofhansl@yahoo.com>

1 files changed, 4 insertions, 39 deletions

diff --git a/client/shaders/nodes_shader/opengl_fragment.glsl b/client/shaders/nodes_shader/opengl_fragment.glsl
index c4b947e72..1f7d98069 100644
--- a/client/shaders/nodes_shader/opengl_fragment.glsl
+++ b/client/shaders/nodes_shader/opengl_fragment.glsl
@@ -45,6 +45,9 @@ centroid varying vec2 varTexCoord;
 #endif
 varying vec3 eyeVec;
 varying float nightRatio;
+varying vec3 tsEyeVec;
+varying vec3 lightVec;
+varying vec3 tsLightVec;
 
 const float fogStart = FOG_START;
 const float fogShadingParameter = 1.0 / ( 1.0 - fogStart);
@@ -359,40 +362,6 @@ float getShadow(sampler2D shadowsampler, vec2 smTexCoord, float realDistance)
 #endif
 #endif
 
-#if ENABLE_TONE_MAPPING
-
-/* Hable's UC2 Tone mapping parameters
-	A = 0.22;
-	B = 0.30;
-	C = 0.10;
-	D = 0.20;
-	E = 0.01;
-	F = 0.30;
-	W = 11.2;
-	equation used:  ((x * (A * x + C * B) + D * E) / (x * (A * x + B) + D * F)) - E / F
-*/
-
-vec3 uncharted2Tonemap(vec3 x)
-{
-	return ((x * (0.22 * x + 0.03) + 0.002) / (x * (0.22 * x + 0.3) + 0.06)) - 0.03333;
-}
-
-vec4 applyToneMapping(vec4 color)
-{
-	color = vec4(pow(color.rgb, vec3(2.2)), color.a);
-	const float gamma = 1.6;
-	const float exposureBias = 5.5;
-	color.rgb = uncharted2Tonemap(exposureBias * color.rgb);
-	// Precalculated white_scale from
-	//vec3 whiteScale = 1.0 / uncharted2Tonemap(vec3(W));
-	vec3 whiteScale = vec3(1.036015346);
-	color.rgb *= whiteScale;
-	return vec4(pow(color.rgb, vec3(1.0 / gamma)), color.a);
-}
-#endif
-
-
-
 void main(void)
 {
 	vec3 color;
@@ -470,10 +439,6 @@ void main(void)
 	}
 #endif
 
-#if ENABLE_TONE_MAPPING
-	col = applyToneMapping(col);
-#endif
-
 	// Due to a bug in some (older ?) graphics stacks (possibly in the glsl compiler ?),
 	// the fog will only be rendered correctly if the last operation before the
 	// clamp() is an addition. Else, the clamp() seems to be ignored.
@@ -488,5 +453,5 @@ void main(void)
 	col = mix(skyBgColor, col, clarity);
 	col = vec4(col.rgb, base.a);
 
-	gl_FragColor = col;
+	gl_FragData[0] = col;
 }