344 lines
12 KiB
C++
344 lines
12 KiB
C++
///////////////////////////////////////////////////////////////////////
|
|
// SpeedTreeRT DirectX Example
|
|
//
|
|
// (c) 2003 IDV, Inc.
|
|
//
|
|
// This example demonstrates how to render trees using SpeedTreeRT
|
|
// and DirectX. Techniques illustrated include ".spt" file parsing,
|
|
// static lighting, dynamic lighting, LOD implementation, cloning,
|
|
// instancing, and dynamic wind effects.
|
|
//
|
|
//
|
|
// *** INTERACTIVE DATA VISUALIZATION (IDV) PROPRIETARY INFORMATION ***
|
|
//
|
|
// This software is supplied under the terms of a license agreement or
|
|
// nondisclosure agreement with Interactive Data Visualization and may
|
|
// not be copied or disclosed except in accordance with the terms of
|
|
// that agreement.
|
|
//
|
|
// Copyright (c) 2001-2003 IDV, Inc.
|
|
// All Rights Reserved.
|
|
//
|
|
// IDV, Inc.
|
|
// 1233 Washington St. Suite 610
|
|
// Columbia, SC 29201
|
|
// Voice: (803) 799-1699
|
|
// Fax: (803) 931-0320
|
|
// Web: http://www.idvinc.com
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////
|
|
// Includes
|
|
|
|
#ifndef _3DRENDERER_SPEEDTREEVERTEXSHADERS_H_
|
|
#define _3DRENDERER_SPEEDTREEVERTEXSHADERS_H_
|
|
|
|
#include <d3d9.h>
|
|
#include <d3dx9.h>
|
|
#include <map>
|
|
#include <string>
|
|
#include "wzspeedtreeconfig.h"
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////
|
|
// Branch & Frond Vertex Formats
|
|
|
|
static DWORD D3DFVF_SPEEDTREE_BRANCH_VERTEX =
|
|
D3DFVF_XYZ |
|
|
#ifdef WRAPPER_USE_DYNAMIC_LIGHTING
|
|
D3DFVF_NORMAL |
|
|
#else
|
|
D3DFVF_DIFFUSE |
|
|
#endif
|
|
D3DFVF_TEXCOORDSIZE2(0) |
|
|
D3DFVF_TEXCOORDSIZE2(1) |
|
|
D3DFVF_TEXCOORDSIZE2(2)
|
|
#ifdef WRAPPER_USE_GPU_WIND
|
|
#ifdef WRAPPER_RENDER_SELF_SHADOWS
|
|
| D3DFVF_TEX3;
|
|
#else
|
|
| D3DFVF_TEX2;
|
|
#endif
|
|
#else
|
|
#ifdef WRAPPER_RENDER_SELF_SHADOWS
|
|
| D3DFVF_TEX2;
|
|
#else
|
|
| D3DFVF_TEX1;
|
|
#endif
|
|
#endif
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////
|
|
// FVF Branch Vertex Structure
|
|
|
|
struct SFVFBranchVertex
|
|
{
|
|
D3DXVECTOR3 m_vPosition; // Always Used
|
|
#ifdef WRAPPER_USE_DYNAMIC_LIGHTING
|
|
D3DXVECTOR3 m_vNormal; // Dynamic Lighting Only
|
|
#else
|
|
DWORD m_dwDiffuseColor; // Static Lighting Only
|
|
#endif
|
|
FLOAT m_fTexCoords[2]; // Always Used
|
|
#ifdef WRAPPER_USE_GPU_WIND
|
|
FLOAT m_fWindIndex; // GPU Only
|
|
FLOAT m_fWindWeight;
|
|
#endif
|
|
#ifdef WRAPPER_RENDER_SELF_SHADOWS
|
|
FLOAT m_fShadowCoords[2]; // Texture coordinates for the shadows
|
|
#endif
|
|
};
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////
|
|
// Branch/Frond Vertex Program
|
|
|
|
static const char g_achSimpleVertexProgram[] =
|
|
{
|
|
"vs.1.1\n" // identity shader version
|
|
|
|
"dcl_position v0\n" // declare the data coming in
|
|
#ifdef WRAPPER_USE_DYNAMIC_LIGHTING
|
|
"dcl_normal v3\n"
|
|
#else
|
|
"dcl_color v5\n"
|
|
#endif
|
|
"dcl_texcoord0 v7\n"
|
|
"dcl_texcoord1 v8\n"
|
|
#ifdef WRAPPER_RENDER_SELF_SHADOWS
|
|
"dcl_texcoord2 v9\n"
|
|
#endif
|
|
|
|
"mov oT0.xy, v7\n" // always pass texcoord0 through
|
|
|
|
#ifdef WRAPPER_RENDER_SELF_SHADOWS
|
|
"mov oT1.xy, v9\n" // pass shadow texcoords through
|
|
#endif
|
|
|
|
// retrieve and convert wind matrix index
|
|
"mov a0.x, v8.x\n"
|
|
|
|
// perform wind interpolation
|
|
"m4x4 r1, v0, c[54+a0.x]\n" // compute full wind effect
|
|
"sub r2, r1, v0\n" // compute difference between full wind and none
|
|
"mov r3.x, v8.y\n" // mad can't access two v's at once, use r3.x as tmp
|
|
"mad r1, r2, r3.x, v0\n" // perform interpolation
|
|
|
|
"mul r1, c[53], r1\n" // 스케일링 (임시)
|
|
"add r2, c[52], r1\n" // translate to tree's position
|
|
|
|
"m4x4 oPos, r2, c[0]\n" // project to screen
|
|
|
|
#ifdef WRAPPER_USE_FOG
|
|
"dp4 r1, r2, c[2]\n" // compute distance
|
|
"sub r2.x, c[85].y, r1.z\n" // linear fog
|
|
"mul oFog, r2.x, c[85].z\n" // write outputs
|
|
#endif
|
|
|
|
#ifdef WRAPPER_USE_STATIC_LIGHTING
|
|
"mov oD0, v5\n" // pass color through
|
|
#else
|
|
//최적화 가능 - 미리 계산 가능
|
|
"mov r1, c[74]\n" // can only use one const register per instruction
|
|
"mul r5, c[73], r1\n" // diffuse values
|
|
|
|
"mov r1, c[75]\n" // can only use one const register per instruction
|
|
"mul r4, c[72], r1\n" // ambient values
|
|
|
|
"dp3 r2.x, v3, c[71]\n" // dot light direction with normal
|
|
"mad oD0, r2.x, r5, r4\n" // compute the final color
|
|
#endif
|
|
};
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////
|
|
// LoadBranchShader
|
|
|
|
inline LPDIRECT3DVERTEXSHADER9 LoadBranchShader(LPDIRECT3DDEVICE9 pDx)
|
|
{
|
|
#ifndef WRAPPER_USE_GPU_WIND
|
|
//lint -e522
|
|
UNREFERENCED_PARAMETER(pDx);
|
|
return NULL;
|
|
#else
|
|
// assemble shader
|
|
LPDIRECT3DVERTEXSHADER9 dwShader;
|
|
LPD3DXBUFFER pCode, pError;
|
|
DWORD dwFlag=0;
|
|
#ifdef _DEBUG
|
|
dwFlag=D3DXSHADER_DEBUG;
|
|
#endif
|
|
if (D3DXAssembleShader(g_achSimpleVertexProgram, sizeof(g_achSimpleVertexProgram) - 1, 0, NULL, dwFlag, &pCode, &pError) == D3D_OK)
|
|
{
|
|
if (pDx->CreateVertexShader((DWORD*)pCode->GetBufferPointer( ), &dwShader) != D3D_OK)
|
|
{
|
|
char szError[1024];
|
|
sprintf(szError, "Failed to create branch vertex shader.");
|
|
MessageBoxA(NULL, szError, "Vertex Shader Error", MB_ICONSTOP);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
char szError[1024];
|
|
sprintf(szError, "Failed to assemble branch vertex shader.\nThe error reported is [ %s ].\n", pError->GetBufferPointer( ));
|
|
MessageBoxA(NULL, szError, "Vertex Shader Error", MB_ICONSTOP);
|
|
}
|
|
|
|
if (pCode)
|
|
pCode->Release( );
|
|
|
|
return dwShader;
|
|
#endif
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////
|
|
// Leaf Vertex Formats
|
|
|
|
static DWORD D3DFVF_SPEEDTREE_LEAF_VERTEX =
|
|
D3DFVF_XYZ | // always have the position
|
|
#ifdef WRAPPER_USE_DYNAMIC_LIGHTING // precomputed colors or geometric normals
|
|
D3DFVF_NORMAL |
|
|
#else
|
|
D3DFVF_DIFFUSE |
|
|
#endif
|
|
D3DFVF_TEXCOORDSIZE2(0) |
|
|
D3DFVF_TEXCOORDSIZE2(1) |
|
|
D3DFVF_TEXCOORDSIZE2(2) |
|
|
#if defined WRAPPER_USE_GPU_WIND || defined WRAPPER_USE_GPU_LEAF_PLACEMENT
|
|
D3DFVF_TEX3;
|
|
#else
|
|
D3DFVF_TEX1;
|
|
#endif
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////
|
|
// FVF Leaf Vertex Structure
|
|
|
|
struct SFVFLeafVertex
|
|
{
|
|
D3DXVECTOR3 m_vPosition; // Always Used
|
|
#ifdef WRAPPER_USE_DYNAMIC_LIGHTING
|
|
D3DXVECTOR3 m_vNormal; // Dynamic Lighting Only
|
|
#else
|
|
DWORD m_dwDiffuseColor; // Static Lighting Only
|
|
#endif
|
|
FLOAT m_fTexCoords[2]; // Always Used
|
|
#if defined WRAPPER_USE_GPU_WIND || defined WRAPPER_USE_GPU_LEAF_PLACEMENT
|
|
FLOAT m_fWindIndex; // Only used when GPU is involved
|
|
FLOAT m_fWindWeight;
|
|
FLOAT m_fLeafPlacementIndex;
|
|
FLOAT m_fLeafScalarValue;
|
|
#endif
|
|
};
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////
|
|
// Leaf Vertex Program
|
|
|
|
static const char g_achLeafVertexProgram[] =
|
|
{
|
|
"vs.1.1\n" // identity shader version
|
|
|
|
"dcl_position v0\n" // declare the data coming in
|
|
#ifdef WRAPPER_USE_DYNAMIC_LIGHTING
|
|
"dcl_normal v3\n"
|
|
#else
|
|
"dcl_color v5\n"
|
|
#endif
|
|
"dcl_texcoord0 v7\n"
|
|
"dcl_texcoord1 v8\n"
|
|
"dcl_texcoord2 v9\n"
|
|
|
|
"mov oT0.xy, v7\n" // always pass texcoord0 through
|
|
#ifdef WRAPPER_RENDER_SELF_SHADOWS
|
|
"mov oT1.xy, v7\n" // 이게 빠졌음..
|
|
#endif
|
|
|
|
#ifdef WRAPPER_USE_GPU_WIND
|
|
// retrieve and convert wind matrix index
|
|
"mov a0.x, v8.x\n"
|
|
|
|
// perform wind interpolation
|
|
"m4x4 r1, v0, c[54+a0.x]\n" // compute full wind effect
|
|
"sub r2, r1, v0\n" // compute difference between full wind and none
|
|
"mov r3.x, v8.y\n" // mad can't access two v's at once, use r3.x as tmp
|
|
"mad r0, r2, r3.x, v0\n" // perform interpolation
|
|
#else
|
|
"mov r0, v0\n" // wind already handled, pass the vertex through
|
|
#endif
|
|
|
|
#ifdef WRAPPER_USE_GPU_LEAF_PLACEMENT
|
|
"mov a0.x, v9.x\n" // place the leaves
|
|
"mul r1, c[a0.x], v9.y\n"
|
|
"add r0, r1, r0\n"
|
|
#endif
|
|
|
|
"mul r0, c[53], r0\n" // 스케일링 (임시)
|
|
"add r0, c[52], r0\n" // translate to tree's position
|
|
"m4x4 oPos, r0, c[0]\n" // project to screen
|
|
|
|
#ifdef WRAPPER_USE_FOG
|
|
"dp4 r1, r0, c[2]\n" // compute distance
|
|
"sub r2.x, c[85].y, r1.z\n" // linear fog
|
|
"mul oFog, r2.x, c[85].z\n" // write outputs
|
|
#endif
|
|
|
|
#ifdef WRAPPER_USE_STATIC_LIGHTING
|
|
"mov oD0, v5\n" // pass color through
|
|
#else
|
|
//최적화 가능- 미리 계산 가능
|
|
"mov r1, c[74]\n" // can only use one const register per instruction
|
|
"mul r5, c[73], r1\n" // diffuse values
|
|
|
|
"mov r1, c[75]\n" // can only use one const register per instruction
|
|
"mul r4, c[72], r1\n" // ambient values
|
|
|
|
"dp3 r2.x, v3, c[71]\n" // dot light direction with normal
|
|
"max r2.x, r2.x, c[70].x\n" // limit it
|
|
"mad oD0, r2.x, r5, r4\n" // compute the final color
|
|
#endif
|
|
};
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////
|
|
// LoadLeafShader
|
|
|
|
inline LPDIRECT3DVERTEXSHADER9 LoadLeafShader(LPDIRECT3DDEVICE9 pDx)
|
|
{
|
|
LPDIRECT3DVERTEXSHADER9 dwShader = NULL;
|
|
|
|
#if defined WRAPPER_USE_GPU_LEAF_PLACEMENT || defined WRAPPER_USE_GPU_WIND
|
|
|
|
// assemble shader
|
|
LPD3DXBUFFER pCode, pError;
|
|
DWORD dwFlag=0;
|
|
#ifdef _DEBUG
|
|
dwFlag=D3DXSHADER_DEBUG;
|
|
#endif
|
|
|
|
if (D3DXAssembleShader(g_achLeafVertexProgram, sizeof(g_achLeafVertexProgram) - 1, 0, NULL, dwFlag, &pCode, &pError) == D3D_OK)
|
|
{
|
|
if (pDx->CreateVertexShader((DWORD*) pCode->GetBufferPointer( ), &dwShader) != D3D_OK)
|
|
{
|
|
char szError[1024];
|
|
sprintf(szError, "Failed to create leaf vertex shader.");
|
|
(void) MessageBoxA(NULL, szError, "Vertex Shader Error", MB_ICONSTOP);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
char szError[1024];
|
|
sprintf(szError, "Failed to assemble leaf vertex shader. The error reported is [ %s ].\n", (char*) pError->GetBufferPointer( ));
|
|
(void) MessageBoxA(NULL, szError, "Vertex Shader Error", MB_ICONSTOP);
|
|
}
|
|
|
|
if (pCode)
|
|
pCode->Release( );
|
|
|
|
#endif
|
|
|
|
return dwShader;
|
|
}
|
|
|
|
#endif // _3DRENDERER_SPEEDTREEVERTEXSHADERS_H_
|