shaders: Switch to floating point texture coordinates in tree shaders.

Author: CrossVR

res/gamedata/shaders/gl/common_iostructs.h

@@ -413,7 +413,7 @@ struct	p_flat
 struct	v_shadow_direct_aref
 {
 	float4	P		; // POSITION;		// (float,float,float,1)
-	int4	tc		; // TEXCOORD0;	// (u,v,frac,???)
+	float4	tc		; // TEXCOORD0;	// (u,v,frac,???)
 };
 
 struct	v_shadow_direct
@@ -457,7 +457,7 @@ struct	v_tree
 	float4	Nh		; // NORMAL;		// (nx,ny,nz)
 	float3	T		; // TANGENT;		// tangent
 	float3	B		; // BINORMAL;		// binormal
-	int4	tc		; // TEXCOORD0;	// (u,v,frac,???)
+	float4	tc		; // TEXCOORD0;	// (u,v,frac,???)
 };
 
 ////////////////////////////////////////////////////////////////

res/gamedata/shaders/gl/iostructs/v_tree_bump.h

@@ -5,7 +5,7 @@ layout(location = POSITION)		in float4	v_tree_P		; // POSITION;		// (float,float
 layout(location = NORMAL)		in float4	v_tree_Nh		; // NORMAL;		// (nx,ny,nz)
 layout(location = TANGENT)		in float3	v_tree_T		; // TANGENT;		// tangent
 layout(location = BINORMAL)		in float3	v_tree_B		; // BINORMAL;		// binormal
-layout(location = TEXCOORD0)	in int4		v_tree_tc		; // TEXCOORD0;	// (u,v,frac,???)
+layout(location = TEXCOORD0)	in float4	v_tree_tc		; // TEXCOORD0;	// (u,v,frac,???)
 
 #if defined(USE_R2_STATIC_SUN) && !defined(USE_LM_HEMI)
 layout(location = TEXCOORD0) 	out float4	v2p_bumped_tcdh	; // TEXCOORD0;	// Texture coordinates,         w=sun_occlusion

res/gamedata/shaders/gl/iostructs/v_tree_flat.h

@@ -5,7 +5,7 @@ layout(location = POSITION)		in float4	v_tree_P		; // POSITION;		// (float,float
 layout(location = NORMAL)		in float4	v_tree_Nh		; // NORMAL;		// (nx,ny,nz)
 layout(location = TANGENT)		in float3	v_tree_T		; // TANGENT;		// tangent
 layout(location = BINORMAL)		in float3	v_tree_B		; // BINORMAL;		// binormal
-layout(location = TEXCOORD0)	in int4		v_tree_tc		; // TEXCOORD0;	// (u,v,frac,???)
+layout(location = TEXCOORD0)	in float4	v_tree_tc		; // TEXCOORD0;	// (u,v,frac,???)
 
 #if defined(USE_R2_STATIC_SUN) && !defined(USE_LM_HEMI)
 layout(location = TEXCOORD0) 	out float4	v2p_flat_tcdh	; // TEXCOORD0;	// Texture coordinates,         w=sun_occlusion

res/gamedata/shaders/gl/iostructs/v_tree_shadow.h

@@ -3,7 +3,7 @@ out gl_PerVertex { vec4 gl_Position; };
 
 layout(location = POSITION)		in float4	v_shadow_P		; // POSITION;		// (float,float,float,1)
 #ifdef	USE_AREF
-layout(location = TEXCOORD0)	in int4		v_shadow_tc		; // TEXCOORD0;	// (u,v,frac,???)
+layout(location = TEXCOORD0)	in float4	v_shadow_tc		; // TEXCOORD0;	// (u,v,frac,???)
 #endif	//	USE_AREF
 
 #ifdef	USE_AREF