From: Mikko Rasa <tdb@tdb.fi>
Date: Mon, 8 Nov 2021 13:31:07 +0000 (+0200)
Subject: Tweak eye position calculation in shaders
X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=commitdiff_plain;h=caa1348f9478fcd834a1fdcbafed7cccf6b582e2

Tweak eye position calculation in shaders
---

diff --git a/shaderlib/common.glsl b/shaderlib/common.glsl
index b83ff380..481d86c4 100644
--- a/shaderlib/common.glsl
+++ b/shaderlib/common.glsl
@@ -47,7 +47,7 @@ void standard_transform()
 	vec3 world_binormal = cross(world_normal, world_tangent);
 	out mat3 world_tbn_matrix = mat3(world_tangent, world_binormal, world_normal);
 
-	vec3 eye_pos = (inverse(eye_world_matrix)*vec4(0.0, 0.0, 0.0, 1.0)).xyz;
+	vec3 eye_pos = world_eye_matrix[3].xyz;
 	out vec3 world_look_dir = normalize(world_vertex.xyz-eye_pos);
 
 	out float fog_coord = eye_vertex.z;