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OpenGL2: Remove per fragment tangent space calculation code.

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This commit is contained in:
SmileTheory 2016-09-14 03:57:51 -07:00
parent 4faf1008a0
commit 8749d62bbd
13 changed files with 5 additions and 130 deletions
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22
code/renderergl2/glsl/lightall_vp.glsl
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@ -6,16 +6,12 @@ attribute vec4 attr_Color;
attribute vec3 attr_Position;
attribute vec3 attr_Normal;
#if defined(USE_VERT_TANGENT_SPACE)
attribute vec4 attr_Tangent;
#endif
#if defined(USE_VERTEX_ANIMATION)
attribute vec3 attr_Position2;
attribute vec3 attr_Normal2;
#if defined(USE_VERT_TANGENT_SPACE)
attribute vec4 attr_Tangent2;
#endif
#endif
#if defined(USE_LIGHT) && !defined(USE_LIGHT_VECTOR)
@ -74,14 +70,9 @@ varying vec4 var_ColorAmbient;
#endif
#if defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
#if defined(USE_VERT_TANGENT_SPACE)
varying vec4 var_Normal;
varying vec4 var_Tangent;
varying vec4 var_Bitangent;
#else
varying vec3 var_Normal;
varying vec3 var_ViewDir;
#endif
#endif
#if defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
@ -157,13 +148,13 @@ void main()
#if defined(USE_VERTEX_ANIMATION)
vec3 position = mix(attr_Position, attr_Position2, u_VertexLerp);
vec3 normal = mix(attr_Normal, attr_Normal2, u_VertexLerp);
#if defined(USE_VERT_TANGENT_SPACE) && defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
#if defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
vec3 tangent = mix(attr_Tangent.xyz, attr_Tangent2.xyz, u_VertexLerp);
#endif
#else
vec3 position = attr_Position;
vec3 normal = attr_Normal;
#if defined(USE_VERT_TANGENT_SPACE) && defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
#if defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
vec3 tangent = attr_Tangent.xyz;
#endif
#endif
@ -185,12 +176,12 @@ void main()
#if defined(USE_MODELMATRIX)
position = (u_ModelMatrix * vec4(position, 1.0)).xyz;
normal = (u_ModelMatrix * vec4(normal, 0.0)).xyz;
#if defined(USE_VERT_TANGENT_SPACE) && defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
#if defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
tangent = (u_ModelMatrix * vec4(tangent, 0.0)).xyz;
#endif
#endif
#if defined(USE_VERT_TANGENT_SPACE) && defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
#if defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
vec3 bitangent = cross(normal, tangent) * attr_Tangent.w;
#endif
@ -247,14 +238,9 @@ void main()
#if defined(USE_LIGHT) && !defined(USE_FAST_LIGHT)
vec3 viewDir = u_ViewOrigin - position;
#if defined(USE_VERT_TANGENT_SPACE)
// store view direction in tangent space to save on varyings
var_Normal = vec4(normal, viewDir.x);
var_Tangent = vec4(tangent, viewDir.y);
var_Bitangent = vec4(bitangent, viewDir.z);
#else
var_Normal = normal;
var_ViewDir = viewDir;
#endif
#endif
}