mirror of
https://github.com/mapbase-source/source-sdk-2013.git
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7309a5f13f
This should include the latest version of every shader that was in the 2007 SDK. It also includes a smattering of debug shaders, both VR distortion shaders, and other assorted shaders that will hopefully be useful. None of these new files are included in the game shader DLL project. If you need to modify one of these shaders for use in your mod you will need to rename it so that you don't collide with the version of that shader that lives in stdshader_dx9.dll.
94 lines
2.9 KiB
C++
94 lines
2.9 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose: This is an example of a material that modifies vertex data
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// in the shader. NOTE: Every pass is given a clean set of vertex data.
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// Modifications made in the first pass are *not* carried over to the next pass
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// Modifications must take place during the DYNAMIC_STATE block.
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// Use the function MeshBuilder() to build the mesh
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//
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// Also note: Using thie feature is *really expensive*! It makes a copy of
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// the vertex data *per pass!* If you wish to modify vertex data to be used
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// with all passes, your best bet is to construct a dynamic mesh instead.
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//
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// $Header: $
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// $NoKeywords: $
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//===========================================================================//
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#include "shaderlib/cshader.h"
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// memdbgon must be the last include file in a .cpp file!!!
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#include "tier0/memdbgon.h"
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BEGIN_SHADER_FLAGS( DebugModifyVertex, "Help for DebugModifyVertex", SHADER_NOT_EDITABLE )
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BEGIN_SHADER_PARAMS
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SHADER_PARAM( WAVE, SHADER_PARAM_TYPE_FLOAT, "1.0", "wave amplitude" )
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END_SHADER_PARAMS
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SHADER_INIT
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{
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LoadTexture( BASETEXTURE );
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}
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SHADER_DRAW
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{
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if( g_pHardwareConfig->GetSamplerCount() >= 2 )
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{
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// lightmap
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SHADOW_STATE
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{
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pShaderShadow->EnableTexture( SHADER_SAMPLER0, true );
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pShaderShadow->EnableVertexDataPreprocess( true );
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pShaderShadow->DrawFlags( SHADER_DRAW_POSITION | SHADER_DRAW_TEXCOORD0 );
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FogToFogColor();
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}
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DYNAMIC_STATE
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{
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BindTexture( SHADER_SAMPLER0, BASETEXTURE, FRAME );
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float amp = params[WAVE]->GetFloatValue();
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float currTime = pShaderAPI->CurrentTime();
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for (int i = 0; i < MeshBuilder()->NumVertices(); ++i)
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{
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float const* pPos = MeshBuilder()->Position();
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MeshBuilder()->Position3f( pPos[0] + amp * sin( currTime + pPos[2] / 4 ),
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pPos[1] + amp * sin( currTime + pPos[2] / 4 + 2 * 3.14 / 3 ),
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pPos[2] + amp * sin( currTime + pPos[2] / 4 + 4 * 3.14 / 3 ) );
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MeshBuilder()->AdvanceVertex();
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}
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}
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Draw();
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// base * vertex color
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SHADOW_STATE
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{
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pShaderShadow->DrawFlags( SHADER_DRAW_POSITION | SHADER_DRAW_COLOR |
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SHADER_DRAW_TEXCOORD0 );
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FogToFogColor();
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}
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DYNAMIC_STATE
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{
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BindTexture( SHADER_SAMPLER0, BASETEXTURE, FRAME );
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// Notice here that since we didn't modify the position, and this is a second
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// pass, the position has been reset to it's initial, unmodified position
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float currTime = pShaderAPI->CurrentTime();
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for (int i = 0; i < MeshBuilder()->NumVertices(); ++i)
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{
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float const* pPos = MeshBuilder()->Position();
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MeshBuilder()->Color3f( ( sin( currTime + pPos[0] ) + 1.0F) * 0.5,
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( sin( currTime + pPos[1] ) + 1.0F) * 0.5,
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( sin( currTime + pPos[2] ) + 1.0F) * 0.5 );
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MeshBuilder()->AdvanceVertex();
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}
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}
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Draw();
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}
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else
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{
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ShaderWarning( "DebugModifyVertex: not "
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"implemented for single-texturing hardware\n" );
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}
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}
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END_SHADER
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