223 lines
6.6 KiB
C++
223 lines
6.6 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
|
|
//
|
|
// Purpose:
|
|
//
|
|
// $Header: $
|
|
// $NoKeywords: $
|
|
//=============================================================================//
|
|
|
|
#include "BaseVSShader.h"
|
|
|
|
#include "unlittwotexture.inc"
|
|
#include "cloak_blended_pass_helper.h"
|
|
|
|
// memdbgon must be the last include file in a .cpp file!!!
|
|
#include "tier0/memdbgon.h"
|
|
|
|
DEFINE_FALLBACK_SHADER( UnlitTwoTexture, UnlitTwoTexture_DX8 )
|
|
|
|
BEGIN_VS_SHADER( UnlitTwoTexture_DX8, "Help for UnlitTwoTexture" )
|
|
|
|
BEGIN_SHADER_PARAMS
|
|
SHADER_PARAM( TEXTURE2, SHADER_PARAM_TYPE_TEXTURE, "shadertest/BaseTexture", "second texture" )
|
|
SHADER_PARAM( FRAME2, SHADER_PARAM_TYPE_INTEGER, "0", "frame number for $texture2" )
|
|
SHADER_PARAM( TEXTURE2TRANSFORM, SHADER_PARAM_TYPE_MATRIX, "center .5 .5 scale 1 1 rotate 0 translate 0 0", "$texture2 texcoord transform" )
|
|
|
|
// Cloak Pass
|
|
SHADER_PARAM( CLOAKPASSENABLED, SHADER_PARAM_TYPE_BOOL, "0", "Enables cloak render in a second pass" )
|
|
SHADER_PARAM( CLOAKFACTOR, SHADER_PARAM_TYPE_FLOAT, "0.0", "" )
|
|
SHADER_PARAM( CLOAKCOLORTINT, SHADER_PARAM_TYPE_COLOR, "[1 1 1]", "Cloak color tint" )
|
|
SHADER_PARAM( REFRACTAMOUNT, SHADER_PARAM_TYPE_FLOAT, "2", "" )
|
|
END_SHADER_PARAMS
|
|
|
|
SHADER_FALLBACK
|
|
{
|
|
if ( !g_pHardwareConfig->SupportsVertexAndPixelShaders())
|
|
{
|
|
return "UnlitTwoTexture_DX6";
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// Cloak Pass
|
|
void SetupVarsCloakBlendedPass( CloakBlendedPassVars_t &info )
|
|
{
|
|
info.m_nCloakFactor = CLOAKFACTOR;
|
|
info.m_nCloakColorTint = CLOAKCOLORTINT;
|
|
info.m_nRefractAmount = REFRACTAMOUNT;
|
|
}
|
|
|
|
bool NeedsPowerOfTwoFrameBufferTexture( IMaterialVar **params, bool bCheckSpecificToThisFrame ) const
|
|
{
|
|
if ( params[CLOAKPASSENABLED]->GetIntValue() ) // If material supports cloaking
|
|
{
|
|
if ( bCheckSpecificToThisFrame == false ) // For setting model flag at load time
|
|
return true;
|
|
else if ( ( params[CLOAKFACTOR]->GetFloatValue() > 0.0f ) && ( params[CLOAKFACTOR]->GetFloatValue() < 1.0f ) ) // Per-frame check
|
|
return true;
|
|
// else, not cloaking this frame, so check flag2 in case the base material still needs it
|
|
}
|
|
|
|
// Check flag2 if not drawing cloak pass
|
|
return IS_FLAG2_SET( MATERIAL_VAR2_NEEDS_POWER_OF_TWO_FRAME_BUFFER_TEXTURE );
|
|
}
|
|
|
|
bool IsTranslucent( IMaterialVar **params ) const
|
|
{
|
|
if ( params[CLOAKPASSENABLED]->GetIntValue() ) // If material supports cloaking
|
|
{
|
|
if ( ( params[CLOAKFACTOR]->GetFloatValue() > 0.0f ) && ( params[CLOAKFACTOR]->GetFloatValue() < 1.0f ) ) // Per-frame check
|
|
return true;
|
|
// else, not cloaking this frame, so check flag in case the base material still needs it
|
|
}
|
|
|
|
// Check flag if not drawing cloak pass
|
|
return IS_FLAG_SET( MATERIAL_VAR_TRANSLUCENT );
|
|
}
|
|
|
|
SHADER_INIT_PARAMS()
|
|
{
|
|
SET_FLAGS2( MATERIAL_VAR2_SUPPORTS_HW_SKINNING );
|
|
|
|
// Cloak Pass
|
|
if ( !params[CLOAKPASSENABLED]->IsDefined() )
|
|
{
|
|
params[CLOAKPASSENABLED]->SetIntValue( 0 );
|
|
}
|
|
else if ( params[CLOAKPASSENABLED]->GetIntValue() )
|
|
{
|
|
CloakBlendedPassVars_t info;
|
|
SetupVarsCloakBlendedPass( info );
|
|
InitParamsCloakBlendedPass( this, params, pMaterialName, info );
|
|
}
|
|
}
|
|
|
|
SHADER_INIT
|
|
{
|
|
if (params[BASETEXTURE]->IsDefined())
|
|
LoadTexture( BASETEXTURE );
|
|
if (params[TEXTURE2]->IsDefined())
|
|
LoadTexture( TEXTURE2 );
|
|
|
|
// Cloak Pass
|
|
if ( params[CLOAKPASSENABLED]->GetIntValue() )
|
|
{
|
|
CloakBlendedPassVars_t info;
|
|
SetupVarsCloakBlendedPass( info );
|
|
InitCloakBlendedPass( this, params, info );
|
|
}
|
|
}
|
|
|
|
SHADER_DRAW
|
|
{
|
|
// Skip the standard rendering if cloak pass is fully opaque
|
|
bool bDrawStandardPass = true;
|
|
if ( params[CLOAKPASSENABLED]->GetIntValue() && ( pShaderShadow == NULL ) ) // && not snapshotting
|
|
{
|
|
CloakBlendedPassVars_t info;
|
|
SetupVarsCloakBlendedPass( info );
|
|
if ( CloakBlendedPassIsFullyOpaque( params, info ) )
|
|
{
|
|
// There is some strangeness in DX8 when trying to skip the main pass, so leave this alone for now
|
|
//bDrawStandardPass = false;
|
|
}
|
|
}
|
|
|
|
// Standard rendering pass
|
|
if ( bDrawStandardPass )
|
|
{
|
|
SHADOW_STATE
|
|
{
|
|
pShaderShadow->EnableTexture( SHADER_SAMPLER0, true );
|
|
pShaderShadow->EnableTexture( SHADER_SAMPLER1, true );
|
|
|
|
// Either we've got a constant modulation
|
|
bool isTranslucent = IsAlphaModulating();
|
|
|
|
// Or we've got a texture alpha on either texture
|
|
isTranslucent = isTranslucent || TextureIsTranslucent( BASETEXTURE, true ) ||
|
|
TextureIsTranslucent( TEXTURE2, true );
|
|
|
|
if ( isTranslucent )
|
|
{
|
|
if ( IS_FLAG_SET(MATERIAL_VAR_ADDITIVE) )
|
|
{
|
|
EnableAlphaBlending( SHADER_BLEND_SRC_ALPHA, SHADER_BLEND_ONE );
|
|
}
|
|
else
|
|
{
|
|
EnableAlphaBlending( SHADER_BLEND_SRC_ALPHA, SHADER_BLEND_ONE_MINUS_SRC_ALPHA );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ( IS_FLAG_SET(MATERIAL_VAR_ADDITIVE) )
|
|
{
|
|
EnableAlphaBlending( SHADER_BLEND_ONE, SHADER_BLEND_ONE );
|
|
}
|
|
else
|
|
{
|
|
DisableAlphaBlending( );
|
|
}
|
|
}
|
|
|
|
int fmt = VERTEX_POSITION | VERTEX_NORMAL;
|
|
if (IS_FLAG_SET( MATERIAL_VAR_VERTEXCOLOR ))
|
|
{
|
|
fmt |= VERTEX_COLOR;
|
|
}
|
|
|
|
pShaderShadow->VertexShaderVertexFormat( fmt, 1, 0, 0 );
|
|
|
|
unlittwotexture_Static_Index vshIndex;
|
|
pShaderShadow->SetVertexShader( "UnlitTwoTexture", vshIndex.GetIndex() );
|
|
|
|
pShaderShadow->SetPixelShader( "UnlitTwoTexture" );
|
|
DefaultFog();
|
|
}
|
|
DYNAMIC_STATE
|
|
{
|
|
if ( pShaderAPI->InFlashlightMode() ) // Not snapshotting && flashlight pass
|
|
{
|
|
Draw( false );
|
|
return;
|
|
}
|
|
|
|
BindTexture( SHADER_SAMPLER0, BASETEXTURE, FRAME );
|
|
BindTexture( SHADER_SAMPLER1, TEXTURE2, FRAME2 );
|
|
SetVertexShaderTextureTransform( VERTEX_SHADER_SHADER_SPECIFIC_CONST_0, BASETEXTURETRANSFORM );
|
|
SetVertexShaderTextureTransform( VERTEX_SHADER_SHADER_SPECIFIC_CONST_2, TEXTURE2TRANSFORM );
|
|
SetModulationVertexShaderDynamicState();
|
|
|
|
unlittwotexture_Dynamic_Index vshIndex;
|
|
vshIndex.SetDOWATERFOG( pShaderAPI->GetSceneFogMode() == MATERIAL_FOG_LINEAR_BELOW_FOG_Z );
|
|
vshIndex.SetSKINNING( pShaderAPI->GetCurrentNumBones() > 0 );
|
|
pShaderAPI->SetVertexShaderIndex( vshIndex.GetIndex() );
|
|
}
|
|
Draw();
|
|
}
|
|
else
|
|
{
|
|
// Skip this pass!
|
|
Draw( false );
|
|
}
|
|
|
|
// Cloak Pass
|
|
if ( params[CLOAKPASSENABLED]->GetIntValue() )
|
|
{
|
|
// If ( snapshotting ) or ( we need to draw this frame )
|
|
if ( ( pShaderShadow != NULL ) || ( ( params[CLOAKFACTOR]->GetFloatValue() > 0.0f ) && ( params[CLOAKFACTOR]->GetFloatValue() < 1.0f ) ) )
|
|
{
|
|
CloakBlendedPassVars_t info;
|
|
SetupVarsCloakBlendedPass( info );
|
|
DrawCloakBlendedPass( this, params, pShaderAPI, pShaderShadow, info, vertexCompression );
|
|
}
|
|
else // We're not snapshotting and we don't need to draw this frame
|
|
{
|
|
// Skip this pass!
|
|
Draw( false );
|
|
}
|
|
}
|
|
}
|
|
END_SHADER
|